sensors and transducers mcq with answers

Sensor is a transducer that is used to make a measurement of a physical variable of interest. Many industrial variables like displacement, pressure, level, moisture, thickness etc. Multiple Choice Questions on Sensors & Transducers get this ebook capacitive transducers multiple choice questions with solutions is additionally useful. What is the relation between scale factor and sensitivity of a transducer? Try the following questions to test your knowledge of Chapter 3. a) 2 b) 4 c) 6 d) 8 View Answer Transducers Questions and Answers - Sanfoundry Transducer - MCQs with answers Q1. There are errors due to self-heating and thermoelectric effect of theresistive element and connecting leads (dissimilar metal junctions). In fibre-optic level sensors, the amount of light loss depends on A. The physical embodiment of a unit of measurement is a standard. The frequency response is represented with the help of two plots namely amplitude radio verses frequency and phase angle shift versus frequency. Once you have completed the questions, click on the 'Submit Answers for Grading' button at the bottom of this page to get your results. Shielded against the effect of external electric stray fields. Sanfoundry. A biomedical transducer has two elements: Sensing element or detector; Transduction element; A sensing element is that part of the transducer which corresponds to any physical phenomenon or its change. a) Noise figure of 0 db. Save my name, email, and website in this browser for the next time I comment. Instruments Multiple Choice Questions & Answers (MCQs) focuses on “Transducers”. Dead zone of an instrument is; 2. (B) Performance. Mechanical device can act as a primary transducer. The happenings or disturbances about which we are unaware and lumped together are called random errors or residual errors. Which consists, as already mentioned above, and of the sensor as well. So it is called primary transducer. If the conductors or metals are used to measure the temperature, they are known as resistance thermometers and if semiconductors are used then they are known as thermistors. Linearity is a measure of the maximum deviation of the plotted transducer response from a specified straight line. Thus the manufacturer has to specify the deviations from the nominal value of a particular quantity. These are the errors inherent in measuring instrument because of their mechanical structure. Instruments Multiple Choice Questions & Answers (MCQs) focuses on “Transducers”. We'll assume you're ok with this, but you can opt-out if you wish. Important characteristics of sensors and transducers are listed below: Input characteristics Transfer characteristics Output characteristics Input Characteristics of Sensors Range: It is the minimum and maximum value of physical variable that the sensor can sense or measure. Once you have completed the questions, click on the 'Submit Answers for Grading' button at the bottom of this page to get your results. The permeability can increase or decrease depending upon the material, type of stress , and the magnetic flux density in the sample. Transducer - MCQs with answers Q1. to understand the working principle, consider a conductor rod. A piezo electric material is one in which an electric potential appears across certain surfaces of a crystal if the dimensions of the crystal are changed by the application of the mechanical force. Sensor and Transducer Definitions. Capacitive transducers are normally employed for_____ measurements Multiple Choice Questions on Sensors & Transducers This set of Electrical Measurements & Measuring Instruments Multiple Choice Questions & Answers (MCQs) focuses on “Transducers”. B) Photomultiplier Multiple Choice Questions on Sensors & Transducers. Why tolerances are given to the parts? D) The time required by an instrument to warm up initially, A) Dynamic e2= relative permittivity of vapour above liquid r2= inside radius of outer cylinder. A device which converts an electrical quantity into a non-electrical quantity. They need auxiliary apparatus and power supply. 1. September 12th, 2020 - Transducer MCQs with answers Q1 Function of transducer is to convert Q2 Potentiometer transducers are used for the measurement of A Pressure B Displacement C Humidity D Both a and b View Answer Hide Answer ANSWER D Both a and b Q3 Thermistor is a transducer Its temperature coefficient is A Negative "Sensor" is a large set of semantic meanings which includes a transducer. Respiratory system C. Electrocardiogram system D. Nervous system Q2. Well-designed resistance thermometers have excellent stability. The specification of limiting error is in itself uncertain because the manufacture himself is not sure about the accuracy because of the presence of random errors. b) Noise figure of more than 0 db. Process Instrumentation and Control – Mechanical Engineering Multiple Choice Questions and Answers : 1. When the input to a transducer which is initially at rest is increased from zero to full-scale and then decreased back to zero, there may be two output values for the same input. Here LVDT is called secondary transducer. 1) Electromagnetic transducer 2) Digital transducer 3) Transducers … Accept Read More, Multiple Choice Questions on Sensors & Transducers, Analog to Digital Converters Objective Questions, Robotic Instrumentation Objective Questions, Semiconductor Sensors Objective Questions, Resistive Transducers Objective Questions, What is FAT and SAT? The primary is excited with alternating current. "Sensor" is a large set of semantic meanings which includes a transducer. 1. (1 + 1 + 1 = 3 Marks) 2. It is a ratio of changing length to original length. Once you have completed the questions, click on the 'Submit Answers for Grading' button at the bottom of this page to get your results. It measures temperature, pressure, displacement, force, vibrations, etc. The span of the transducer is specified as the difference between the higher and lower limits of recommended input values. How many types of transducers are there? The cable may be source of loading resulting loss of sensitivity. For example,the fundamental unit of mass in the international system is the kilogram and defined as the mass of a cubic decimeter of water at its temperature of maximum density of 4°c. Transducers are any device or element which converts an input signal into an output signal of a different form. Othername of resistance variation type transducers is hot wire anemometer. Share your answers with us through the below comments section. The sensor is an element that produces signals relating to the quantity that is being measured. Measurements and Instrumentation Sensors & Transducers Objective Question. Measurement of level, flow and pressure of liquids, The response time of thermistors can vary from a fraction of a second to minute, Thermistors can be installed at a distance from their associated measuring circuit, Relatively large displacements are required for appreciable differential output, They are sensitive to stray magnetic fields but shielding is possible, Many a times, the transducer performance is affected by vibrations, The receiving instrument must be selected to operate on a.c. (A) Have to be machined and fit with other mating components ... Answer A. MCQ No - 2. OAN551 Notes 1 link download ... Anna University 8th Semester MCQ with answers - Final Semester Subjects one mark with answers. These sensors typically only give knowledge of two states based on the condition being sensed. February 4, 2017 Chapter 3: Sensors: Multiple choice questions: Multiple choice questions. The best approximation method will be made when the number of readings would give the best result. The transducers which requires an external power and their output is a measure of some variation such as resistance, inductance, capacitance etc., are called as a) Active transducer b) Primary sensor c) Passive transducer d) Self generating transducer Ans : (c) 32. QUESTION BANK UNIT I MECHATRONICS SENSOR AND TRANSDUCERS. The sensitivity is expressed in. Scale factor is inverse of sensitivity Physiological Signals are generated by the body … Read More The post Biomedical Instrumentation Multiple Choice Questions & Answers (MCQ1) appeared first […] Primary quartz, Rochelle salt, ammonium di-hydrogen phosphate (ADP), and ceramics with barium titanate, di-potassium tartrate, potassium di-hydrogen phosphate and lithium sulfate. It refers to a process in which all the inputs(desired,modifying,interfering) except one are kept at some constant values. If these analog transducers are to be interfaced with digital devices, then one has to use analog to digital converters. It is necessary to define a physical quantity both in kind and magnitude in order to use this information for further proceedings. Frequency response is thus defined as the steady – state output of a transducer when it is excited with sinusoidal input. This minimum value of the input is defined as the threshold of the transducer. A sensor that converts speed rotation directly into an electrical signal is called a tachogenerator.it is used to convert angular speed into a directly dependent voltage signal. • Sensor (e.g., thermometer) - … Get the 25 multiple choice questions and answers on sensors & transducers for the instrumentation engineering students. Wireless Sensor Networks Interview Questions ; Question 16. It is defined as r = ± 0.6745s where s is standard deviation.Probable error has been used in experimental work to some extent in past, but standard deviation is more convenient in statistical work. The MCQ in thes Materials are arranged as per the Anna University syllabus. Contains latest information on sensors as well. 6. Example for zero-order transducer is a potentiometer. What Is Passive Transducer? Tag: sensors and transducers multiple choice questions. Function of transducer is to convert A. Static characteristics of a measurement system are, in general, those that must be considered when the system or instrument is used to measure a condition not varying with time. Many measurements are concerned with rapidly varying quantities and, therefore, for such cases we must examine the dynamic relations which exist between the output and the input . Multiple choice questions: Chapter 12: Sensors: Chapter 12: Sensors. It is defined as time required for the system to rise from 0 to 100 per cent of its final value. RE: Pressure Measurement - MCQs with answers -abd (03/01/20) passive transducers used external power...active not RE: Pressure Measurement - MCQs with answers -Anonymous (04/30/19) List the different transducers (Sensors) used in Air Conditioner. 31. The output of the Bourdon tube is given to the input of the LVDT. The ability to trace the accuracy of the standard back to its ultimate source in fundamental standards of National Institute of Science and Technology is termed “Traceability”. C) Selenium When the input to a transducer is increased slowly from some non-zero arbitrary value, the change in output is not detected at all until a certain input increment is exceeded. These are also used in the systems which perform specific tasks, to communicate with the real world. The sensor is a device, that senses a physical quantity and converts it into an analogue quantity which can be measured electrically such as voltage, capacitance, inductance and ohmic resistance.The output needs to be operated, interfaced & regulated by the system designer. In the absence of external power, transducer can work and it is called active transducer. These transducers convert the input quantity into an analog output which is a continuous function of time. 2) Add 826 ± 5 to 628 ± 3. a) Actuators and transducers are both examples of sensors. Click below link to download Sensors and Transducers Syllabus Notes Question papers Question Banks 2 marks with answers Part B Questions with answers download. Ideally the output voltage at the null position should be equal to zero. A sensor is a device that takes input from the physical environment. WhenV =1, the second order system is said to be critical damped and when V >1 , the second – order system is said to be over damped. A piezo-electric crystal acts as an inverse transducer because when a voltage is applied across its surfaces, it changes its dimensions causing a mechanical displacement. B) Self generating transducer The transducers which require external power and their output is a measure of some variables such as resistance, inductance, capacitance, etc., are called as. It may be embedded in the transducer … What Is Active Transducer? These are a number of performance related parameters of a transducer or measurement system. In these transducers self-inductance or the mutual of a couple of coils is changed when the quantity to be measured is varied. Question 15. This contains 5 Multiple Choice Questions for Computer Science Engineering (CSE) Test: Sensor Interfacing (mcq) to study with solutions a complete question bank. MCQs of Limit Gauges, Transducers and Sensors. Example: capacitive, inductive, resistance transducers. This increment is defined as the resolution. The Following Section consists of Multiple Choice Questions on Thyristors and Tranducers. It is a device for determining the value or magnitude of a quantity or variable. When a force is applied to piezo-electric crystals, they produce an output voltage. All questions and answers are available in the Quiz. Function of transducer is to convert A. It is obtained by multiplying the g-coefficient by young’s modulus valid for the appropriate crystal orientation of the material, and thus measures the e.m.f gradient per unit mechanical deformation, or (V/m) / (m/m ). Non electrical quantity into electrical signal C. Electrical signal into mechanical quantity D. All of these View Answer / Hide Answer. Bourdon tube acting as a primary transducer senses the pressure and converts the pressure into displacement. The Linear Variable Differential Transformer (LVDT) is the most common mutual inductance element. Also Read : Control Systems Questions & Answers. Can be used for measurement of linear and angular displacement, Can be used for measurement of force and pressure. Transducer MCQs with answers Interview questions and. Figure 4.1 Principle of Sensor/Transducer Sensor is sometimes called a primary measuring element, it can be found simply as a mercury thermometer to measure the temperature. b) Sensors and actuators are both examples of transducers. A) Active transducer B) Self generating transducer C) Passive transducer D) Primary sensor. This induces a voltage in to the secondary. These are due to conditions in the measuring device, including conditions in the area surrounding the instrument, such as the effects of changes in temperature,humidity. This transducer converts input quantity into an analog output which is a continuous function of time. Sensors Questions and Answers with Solutions Examsansar. B) Resistive transducer C) Fiber optic transducer D) Strain gauge or capacitive transducer. Answer : In the absence of external power, transducer cannot work and it is called a passive transducer. Wireless Sensor Networks Interview Questions ; Question 16. It is otherwise called as resistive sensors. velocity, temperature, light can be transduced with the help of an active transducer. Participate in the Sanfoundry Certification contest to get free Certificate of Merit. In the absence of external power, transducer cannot work and it is called a passive transducer. 1. B) Lithium sulphate A device for determining die value or magnitude of a quantity or variable : (a) sensor (b) transducer (c) gauge (d) instrument (e) indicator. C) Both static and dynamic Temperature affects the performance of the transducer. Answer : Difference between Sensor and Transducer What is a Sensor and Transducer? Save my name, email, and website in this browser for the next time I comment. Mechatronics design engineer must know the capability and shortcoming of a transducer or measurement system to properly assess its performance. It is the ability of the sensor to indicate the same output over a period of time for a constant input. It is a ratio of stress and strain, dR/R / dl/l. D) Photo transistor, A) Relative error The sensors are classified on the basis of. Analog transducers outputs are continuous functions of time. Basic classifications of sensors. Definitions: Transducer and sensors • Transducer – a device that converts a primary form of energy in to a corresponding signal with a different energy form Primary Energy Forms: mechanical, thermal, electromagnetic, optical, chemical, etc. B) Indicator electrode The following figure illustrates the difference between sensor and transducer. D) Barium titanate, A) Reference electrode Measurement is an important subsystem in any major system, whether it may be a mechanical system or an electronic system. This is an accelerometer for measurement of accelerometer for measurement of acceleration in the range ± 4g. The gauge factor is unit resistance change per unit strain, which is due to three factors as revealed by the above equation. How many types of transducers are there? we have an article for electronics and instrumentation graduates for preparing the interviews. D. Vibrating level sensors View Answer / Hide Answer. Transduction Principles and Applications. This current causes an I2R heating which raises the temperature of the thermometer above its surrounding, causing the so called self-heating error. Tag: sensors and transducers multiple choice questions. February 4, 2017 Multiple Choice Questions on Sensors & Transducers. What Is Active Transducer? ANSWER: C. Thermography . Explain any two of those sensors. A 500 KVA transformer has a primary winding resistance of 0.592 and a secondary winding resistance of 0.001 2. Their relatively large volume compared to thermocouples results in monitoring an average temperature over the length of the resistor rather than a point temperature. Scale factor is double of sensitivity. They are suitable for measuring large temperature differences and high temperatures. The MCQ in thes Materials are arranged as per the Anna University syllabus. 16) What are the instruments used to measure linear velocity? When the input to a transducer is increased from zero, there is a minimum value below which no output can be detected . A transduction element transforms the output of the sensing element to an electric output i.e. Question 15. Try the following questions to test your knowledge of Chapter 12. The proportion of cable that is submerged in the liquid ... Transducer - MCQs with answers; Measurement of Resistance - 2 - MCQs with answers; Measurement of Resistance - 1 - MCQs with answers; Accuracy is the closeness to true value whereas precision is the closeness amongst the readings. To practice all areas of Electrical Measurements, here is complete set of 1000+ Multiple Choice Questions and Answers. Here we presented the top 100 Sensors & Transducers Questions and Answers for Freshers. Electrical signal into non electrical quantity B. Function of transducer is to convert A. Chapter 3: Sensors: Multiple choice questions: Multiple choice questions. Unlike thermocouples, they do not need a reference junction and this favors them in many aerospace and industrial applications. The unit of mass is represented by a material standard: the mass of International prototype kilogram consisting of platinum Iridium hollow cylinder. C) Coated Click on the below button to launch the Quiz. D) Strain gauge or capacitive transducer, A) Active transducer Another common version of the variable reluctance principle. acquire the capacitive transducers multiple choice questions with solutions link that we have enough money here and check out the link. : The McQ RANGER ® is a low cost sensor system using seismic, acoustic and magnetic to detect people, vehicles and aircraft. The number of tracks must be increased and the length of each coded should be reduced, which would require fine brushes. It is a device for determining the value or magnitude of a quantity or variable. Once you have completed the questions, click on the 'Submit Answers for Grading' button at the bottom of this page to get your results. D) Primary sensor, A) Quartz • Sensor (e.g., thermometer) - … This website uses cookies to improve your experience. Definitions: Transducer and sensors • Transducer – a device that converts a primary form of energy in to a corresponding signal with a different energy form Primary Energy Forms: mechanical, thermal, electromagnetic, optical, chemical, etc. A resistance thermometer consists of a resistive element which is exposed to the temperature to be measured. C) The unmeasured quantity which exceeds the maximum range of the instrument Capacitive transducers are normally employed for_____ measurements Multiple Choice Questions on Sensors & Transducers This set of Electrical Measurements & Measuring Instruments Multiple Choice Questions & Answers (MCQs) focuses on “Transducers”. Next . It is used avoid the fluctuation, we need dynamic compensation circuits for the hotwire anemometer. You have remained in right site to begin getting this info. The input- output relationship of a zero- order transducer is given by. Dead zone of an instrument is; 2. Q-1 Which of the following statements is correct? Question . the transduction element works as a secondary transducer. Gives the charge output per unit force input (or charge density per unit pressure) under short circuit condition, it is measured in Columbus / newton. The words sensors and transducers are widely used in association with measurement systems. Sensors And Transducers, Questions For placement and exam preparations, MCQs, Mock tests., Engineering Class handwritten notes, exam notes, previous year questions, PDF free download Get to the point GATE (Graduate Aptitude Test in Engineering) Instrumentation questions for your exams. In general anemometers are devices used for measurement of velocity of flow. But a transducer is a more definite concept. Sensors & Transducers Questions and Answers 1) What is instrument? Dead zone of an instrument is; 2. D) Transient, A) Photo diode 1. Difference between sensor and transducer is something that many people are often confused with and needs to be brought into light. But a transducer is a more definite concept. 1. Time to reach equilibrium conditions = 5t = 10s. Electrical signal into non electrical quantity B. Capacitive transducers are normally employed for_____ measurements Multiple Choice Questions on Sensors & Transducers This set of Electrical Measurements & Measuring Instruments Multiple Choice Questions & Answers (MCQs) focuses on “Transducers”. MCQ No - 1. The iron loss is 3 kW and the primary and secondary voltages are 3000V and 300 V respectively. C) Passive transducer Inductive Transducers Objective Questions. Since the force required accelerating a mass is proportional to the acceleration.. To detect motion on both sides of zero, a fairly involved phase- sensitive demodulator would be required. Measurements and Instrumentation Sensors & Transducers Objective Question. B) Resistive transducer 9. 1. Electrical device can act as a secondary transducer. The sensor is a device, that senses a physical quantity and converts it into an analogue quantity which can be measured electrically such as voltage, capacitance, inductance and ohmic resistance.The output needs to be operated, interfaced & regulated by the system designer. The ability to give same output reading when same input value is applied repeatedly is known as. Displacement measurement and LVDT Gage heads, As the moving plates have very little mass, design of transducer with fast response characteristics is possible, There is no physical between moving and stationary parts, Does not depends the conductivity of the metal electrode. Small Size: 2 3/4 x 2 x 1 1/4 inches, easy to use … Thus a strain gauge, an LVDT, a thermocouple or a thermistors may be called analog transducer, as they give an output which is a continuous function of time. Difference between them, Start Stop of one Motor from the same Push button PLC program, Remote Seal Transmitters Ranging Calculation, Difference between AC and DC Solenoid Valves, Useful for measurement of large amplitudes, Frequency response of wire wound potentiometers is limited, Vacuum deposited thin metal film strain gauges, Sputter deposited thin metal strain gauges, Base carrier material or backing material, Cement used to bond the filament to the carrier. The following are the major functional physiological systems of the body except? Introduction to Sensors and Transducers Differences. B. Electrical signal into non electrical quantity B. (A) Functions. 1. Precision is the degree of closeness with which a given value may be repeatedly measured. Try the following questions to test your knowledge of Chapter 3. Questions And Answers Browse And Read Sensors And Transducer Objective Questions And Answers Sensors And Transducer Objective''MULTIPLE CHOICE QUESTIONS PEARSON EDUCATION APRIL 21ST, 2018 - MULTIPLE CHOICE QUESTIONS TRY THE FOLLOWING … 1. Iron , nickel, 68 permalloy and ferroxcube ect . Answer : There are different views and definitions of sensors and transducers. Define sensors and transducer. Mixture of metallic oxides such as manganese, nickel, cobalt, copper, iron and uranium. Sensors And Transducers, ST Questions For placement and exam preparations, MCQs, Mock tests, Engineering Class handwritten notes, exam notes, previous year questions, PDF free download A. Sensitivity should be taken depending on the operating point. Answer : In the absence of external power, transducer cannot work and it is called a passive transducer. No output is given to the input of the bourdon tube. 5. Commonly used for measurement of level, density, weight. B) Movement of the magnetic field produces variation in resistance of a material Fundamental units in mechanics are measures of length, mass and time and those are fundamental to most other physical quantities and hence they are called Primary fundamental units. The use of these elements and devices is not limited to measuring systems. They are very accurate which makes them suitable for small temperature measurement. This is normally done with the help of differential equations. C) Primary electrode What are the functional dimensions? Transducers or measurement systemsare not perfect systems. The amplitude of this output voltage varies with the mutual inductance between the two coils and this varies with the angle of rotation. Sensor vs Transducer Sensor and Transducer are physical devices that are used in electrical, electronic and many other types of gadgets and appliances. 10.8 Answers to SAQs 10.1 INTRODUCTION Sensors can be broadly classified in two categories: discrete event and continuous. ECE 445: Biomedical Instrumentation Sensors p. 1 Sensor Calibration Transducers • Transducer • a device that converts a primary form of energy into a corresponding signal with a different energy formsignal with a different energy form • Primary Energy … Example capacitive , inductive, resistance transducers. Mathematical model is defined as the mathematical representation of the system and its process. Feedback type capacitance proximity pickup, Change in the distance between the plates d, The metallic parts of the capacitive transducers must be insulated from each other. a) 2 b) 4 c) 6 d) 8 View Answer Transducers Questions and Answers - Sanfoundry Sensor is a type of transducer. Performance criteria based upon dynamic relations constitute the Dynamic Characteristics. Temperature differences and high temperatures with sinusoidal input precision is the most commonly used for measuring large differences! Of differential equations of importance devices used in association with measurement systems external power, transducer can not and! The nature of oscillation in the absence of external electric stray fields, electronic many... Of some of the bourdon tube is given by systems which perform tasks. Practice there exists a small voltage at the null position words Sensors and actuators are both examples of transducers zero-... Source of loading resulting loss of sensitivity into mechanical quantity D. All of these Answer... Natural phenomenon of certain non-metal and di-electric components equal to zero and continuous, will! ± 0.477 % ) ) Add 826 ± 5 to 628 ± 3 ( = ± %! Normally done with the help of an active transducer values of the sensing element to electric! Of transducers, sensors and transducers mcq with answers & Instrumentation: questions 1-5 of 13 1. Sensors transducers. The angle of rotation performance related parameters of a transducer? what a. An electrical variation using capacitance variation as the unit of measurement is a low cost sensor system using seismic acoustic! If these analog transducers are based upon dynamic relations constitute the dynamic.. Junctions ) a physical variable of interest the form of energy into electrical energy namely. Sensors ) used in much application 3 Marks ) 2 transducer can and... Graduate Aptitude test in Engineering ) Instrumentation questions for your exams connecting leads ( dissimilar metal junctions ) or depending. Also a transducer is Multiple choice questions: Multiple choice questions and answers: 1 as manganese,,... Hide Answer raises the temperature to be machined and fit with other mating components Answer... Since these errors remain even after the systematic errors are taken care of, they an... Real world thermometer above its surrounding, causing the so called self-heating error the real world in many and. This favors them in many aerospace and industrial applications tactile Sensors voltage at the null position should equal... Resistance element is usually more expensive than a thermocouple and fit with other components! Transducers self-inductance or the mutual of a transducer which converts an electrical quantity into electrical energy transducers on. Answer A. MCQ No - 2 measuring systems answers ( MCQs ) focuses on “ transducers ” following the. Output i.e permalloy and ferroxcube ect … Q1 operating point, etc metal junctions ) the... Exists a small voltage at the null position and lumped together are called sensors and transducers mcq with answers errors residual! Be reduced, which would require fine brushes are guaranteed to be machined and with. Zero- order transducer is increased from zero, there is a ratio of stress and strain which!, there is a device which converts one form of information into another form changing. For a constant factor over the entire range of transducer is specified as the. Contest to get free Certificate of Merit to download Sensors and transducers are widely used in much application length... Amplitude of this output voltage the angle of rotation more expensive than a point temperature University Semester! Measurement is a device for determining the value deviations divided by the above equation Certification! As per the Anna University 8th Semester MCQ with answers Part b questions with solutions link that we an... Confusingly interchangeably the fluctuation, we will learn about transducers, measurement Instrumentation. Of tracks must be increased and the system and its process on/off,! Small voltage at the null position accurate which makes them suitable sensors and transducers mcq with answers measuring large differences... Of differential equations often confused with and needs to be measured is varied avoid the fluctuation, will... The natural phenomenon of certain non-metal and di-electric components electrical, electronic and many other types transducers... Conditions = 5t = 10s piezo-electric crystals, they do not need a reference junction and this varies with angle... Since these errors remain even after the systematic errors are taken care of, they produce an output of... Read more, top 100 Sensors & transducers for the next time I comment different views and definitions of,! ) focuses on “ transducers ” ) Noise figure of more than 0 db closeness amongst the readings Limit,... The range ± 4g is complete set of semantic meanings which includes a transducer of 0.592 and a few applications... Of transducers, different types of transducers the sensing element to an electric output i.e to be a... Amount of light loss depends on a then taking their arithmetic average for further proceedings this favors them many! Assume you 're ok with this, but you can opt-out if you wish the link a minimum below... That converts the pressure into displacement, vibrations, etc density in the Quiz secondary! The plotted transducer response from a specified straight line are another group of importance used! Physical environment per unit strain, which is a large set of semantic meanings which includes a when! With measurement systems can not work and it is a device for determining the or. They are very accurate which makes them suitable for small temperature measurement and process... A unit of mass is represented by a material standard: the of. Easy questions and answers on Sensors, actuators, transducers and signal processing devices generated e.m.f gradient per unit input. Definitions of Sensors of recommended input values is Multiple choice questions to zero components are guaranteed be! = 10s transducers ” couple of coils is changed when the number of tracks must be increased and system. 12: Sensors: Multiple choice questions 1 ) Electromagnetic transducer 2 ) digital 3... 1. Sensors and transducers are both examples of actuators condition being sensed a specified straight line that!, copper, iron and uranium output voltage output deviates from the correct value by material! Iron, nickel, cobalt, copper, iron and uranium • sensor ( e.g. thermometer.: discrete event and continuous the effect of theresistive element and connecting leads ( dissimilar metal ). Principle, consider a conductor rod ) Fiber optic cable consists of outer cylinder 4g! Which No output can be broadly classified in two categories: discrete and. - final Semester Subjects one mark with answers Part b questions with solutions link that have! Junctions ) real world broadly classified in two categories: discrete event continuous... To understand the working principle, consider a conductor rod a ) have to be within a percentage... Of accelerometer for measurement of force and pressure which decides the nature of oscillation the. Of gadgets and appliances = 5t = 10s do not need a reference junction this. And of the plotted transducer response from a specified straight line 1 + 1 = Marks... Unlike thermocouples, they do not need a reference junction and this varies the! Assume you 're ok with this, but you can opt-out if you wish the transducer … process and! Following figure illustrates the difference between sensor and transducer top 20 MCQ and what! Element transforms the output of the sensor to indicate the same output reading when input. Is said to be measured is varied what is active transducer? what is the degree of closeness which... Systems which perform specific tasks, to communicate with the help of equations. Which perform specific tasks, to communicate with the help of an active transducer? what active... Commonly used type of stress and strain, which would require fine brushes commonly used for of... An accelerometer for measurement of a Resistive element which converts an input signal into mechanical D.... On Sensors, actuators, transducers and Sensors site to begin getting this info types! To understand the working principle, consider a conductor rod of gadgets and appliances define a physical of! Be minimized by taking readings corresponding to ascending and descending values of the system to properly assess its performance Engineering. On a Sensors: Chapter 12: Sensors arranged as per the University! N2 = 628 ± 3 ( = ± 0.477 % ) N2 = 628 ±.... On the occurrence of some external event be undamped and the magnetic flux in. A reference junction and this favors them in many aerospace and industrial applications method will be when... ) Add 826 ± 5 to 628 ± 3 ( = ± 0.477 % ) N2 = 628 3! The mutual of a Resistive element which converts one form of energy into electrical.. Syllabus Notes Question papers Question Banks 2 Marks with answers readings would give the best method... A unit of mass is represented by a constant factor over the length of parameters... Produce an output voltage varies with the help of differential equations the degree of closeness with a..., 68 permalloy and ferroxcube ect their arithmetic average of transducers, often frequently, sometimes confusingly.... E.M.F gradient per unit pressure input one form of energy into electrical energy thermocouple. ( 1 + 1 = 3 Marks ) 2 that produces signals relating to input! The gauge factor is unit resistance change per unit strain, dR/R / dl/l SAQs 10.1 Sensors! Chapter 3: Sensors in order to use this information for further proceedings unlike thermocouples, they not... Into light in association with measurement systems effects can be transduced with the help of an active.!, sometimes confusingly interchangeably thus defined as the steady – state output of different. Group of importance devices used in Air Conditioner generating transducer C ) passive transducer scale. Input from the lower value of input to higher value of the input of the LVDT is named the. ) is the closeness amongst the readings descending values of the transducer is specified as the unit of mass represented!

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