15. Objective: Define and demonstrate proper use of all key terms in this section. Which of the following is not transducer ? NCERT NCERT Exemplar NCERT Fingertips Errorless Vol-1 Errorless Vol-2. a. LVDT O b. Encoder O c. Thermistor O d. Thermocouple This transducer is called Accelerometer used to measure the acceleration. Usually a transducer converts a signal in one form of energy to a signal in another.. Transducers are often employed at the boundaries of automation, measurement, and control systems, where electrical signals are converted to and from other physical quantities (energy, force, torque, light, motion, position, etc. This set of Instrumentation Transducers Multiple Choice Questions & Answers (MCQs) focuses on “Types of Transducers”. Hence, it is an Active Transducer. we respect your privacy and take protecting it seriously, “POT” is an example of passive transducer. 1. Use of the transducer is the primary factor that requires the sonographer to be in close patient contact. When scanning over the part or making precise measurements, an immersion technique is often used. The higher the applied force, the more will be strain generated in the column. Selection of the proper transducer for a particular application is most important. c) Micro-channel plate The following block represents the function of a transducer. A transducer being a device that converts between energy forms. “POT” is an example of passive transducer. ONE Of The Following Is NOT True Regarding Selection Of A Transducer For Measuring Pressure A. 6 - Which of the following is not a suitable way to... Ch. Which of the following can be measured using Piezo-electric transducer? The force is first detected by the column and is converted into the strain which is basically a mechanical displacement. The difference is that its primary cathode detects ions rather than photons. It Should Exhibit A Negligible Amount Of Hysteresis Abcd B. Apart from this, transducers are classified into following types: This classification in shown below in pictorial form to have better grasp of the subject matter. (A) Modulation of amplitude (B) Modulation of frequency (C) Modulation of pulse width (D) All of the above. They produce an output signal in the form of some variation in resistance, capacitance or any other electrical parameter, which than has to be converted to an equivalent current or voltage signal. The use of these elements and devices is not limited to measuring systems. This can be viewed as waveform. A. computer mouse B. microphone C. electrical outlet D. light switch Download PDF's . See the answer. NCERT RD Sharma Cengage KC Sinha. A) DMS Feedback: CORRECT Feedback: DMS requires the use of a transducer. pressure, temperature, displacement etc. Thus, we have output in the form of change in resistance which is an electrical quantity. When external force is applied on a, Analog Transducers are those whose output is continuous in time domain. which of the following will not improve axial resolution? Active transducers are those which do not require any power source for their operation. In most of the measurement systems, there is a combination of wherein a Mechanical device acts as primary transducer and the electrical device acts as secondary transducer with mechanical displacement serving as the intermediate signal. c) Silver bromide 11-The following is (are) type(s) of Hall Effect sensors. A. It is used as a sensor for knowing the engine knock. The entire process of measurement of force with the help of load cell and strain gauge can be divided into two parts. which force oppertates … ). The following are the application of the transducers. Thus, we see that the force is detected by the column in the first stage and hence it is called the Primary Transducer. b) Steel doped with bronze They use convection phenomenon for the transfer of heat. d) All dynodes are held at very low potential. It is a detector used in chromatography. Example of analog transducers are RTD, Thermocouple, LVDT, RVDT, thermistor etc. – Construction and Working Principle, Binary Coded Decimal or BCD Number Explained, What is UPS? 50) The following is a reference reflector that is not dependent on the beam angle: the side drilled hole that is parallel to the plate surface and perpendicular to the sound path. 14) Which of the following is not a sonographic finding of acute pancreatitis? 4. Show transcribed image text. This property is utilized to make an active transducer. Get Answer. advertisement. Subject: Physics, Science. Which of the following modalities requires the use of a transducer? this kind of transducer has the following disadvantage: a) it cannot be focused in th elevation direction. The ___ transducer and corresponding field of excitation excites molecules in the traditional “pie-shaped” field. a) Digital b) Analog c) Active d) Pulse Ans : (a) 3. Now that we have laid down the theoretical foundations for understanding transduscers, we can continue on the next post to see them in practice. Solution for Which of the following is an example of digital transducer ? 7. Which of the following detectors can be used for ions with short life time? Happy hacking Explanation: In discrete dynode electron multiplier, successive dynodes are held at higher potential. The stand-off pad increases the distance between the transducer and the mass, making it more likely that the mass will be located … Books. In which of the following detectors, the collector is placed in an inclined manner? Ion Transducers Questions & Answers 1. b) Successive dynodes are held at lower potential a) increased damping. Physics. Let us take an example for measurement of a compressive force with the help of load cell and strain gauge as shown in figure below. Once you have completed the questions, click on the 'Submit Answers for Grading' button at the bottom of this page to get your results. Solution for Which of the following is an example of digital transducer ? A lag compensator is basically a – 16. Answer: b Explanation: An ideal transducer should show high linearity. Which of the following is not an ion transducer or detector? Which of the following is not a characteristic of an ideal transducer? 6. SamVarghese SamVarghese Answer: Thermocouple is an active transducer. The cannula in the artery is connected to the transducer via some non-compliant fluid-filled tubing; the transducer is usually a soft silicone diaphragm attached to a Wheatstone Bridge. First, the applied force generates a mechanical movement, called strain. Use of the transducer is the primary factor that requires the sonographer to be in close patient contact. D. All of the above are examples of transducers. 3. c) Successive dynodes are held at higher potential Mechanical Engineering Automotive Technology: A Systems Approach (MindTap Course List) Which is not a common use for a pressure transducer? Thus, electrical quantity is changed into physical quantity. Question: Which Of The Following Is Not A Part Of Machining System Of Water Jet Machining Transducer A Hydraulic Pumpe Jet Cutting Nozzle.co Accumulator D. This problem has been solved! c) Phosphor bronze doped with iron Which of the following is similar to photo multiplier transducer? Transducer - MCQs with answers Q1. d) Electron multiplier transducer. Speed of Response: It is the rapidity with which the transducer responds to changes in the measured quantity. a) Faraday cup collector b) Channeltron c) Micro-channel plate d) Flame ionization detector Answer: d Explanation: Flame ionization detector is not an ion transducer. Log in. Arrangement of accelerometer is shown in figure below. It is used to convert a linear displacement into electrical signal. Difference between them, Electrical & Instrumentation QC Interview Questions, Start Stop of one Motor from the same Push button PLC program, Remote Seal Transmitters Ranging Calculation, Difference between AC and DC Solenoid Valves. Which of the following represent active transducer? This is the reason; it is a kind of passive transducer. Example of active transducer is piezoelectric crystal. Active Transducers are those which does not require external power supply to work. a) Photovoltaic cell b) Thermocouple c) Piezoelectric transducer d) Thermistor View Answer. The main principle of the temperature transducer is to measure the heat and transfer the information after converting it into the readable form. Explanation: Photographic plates are well suited for spark source instruments. Question is ⇒ Which of the following is not a transducer in true sense?, Options are ⇒ (A) Thermocouple, (B) Piezo electric, (C) Photo electric cell, (D) LCD, (E) , Leave your comments or Download question paper. Load cell is a short column or a strut with resistance wire strain gauge bonded to it. a) Glass doped with lead The transduction medium may be resistive, inductive or capacitive depends on the conversion process that how input transducer converts the input signal into resistance, inductance and capacitancerespectively. When voltage across the surface of a piezoelectric crystal is applied, it changes its dimension. They produce an electrical signal proportional to the input (physical quantity). When trying to determine which transducer is best for you, you' ll need to consider the following variables: What material the transducer housing is made of, based on boat hull composition, how the transducer should be mounted on the boat: in the hull, through the hull, or on the transom, and what you want to see displayed: depth, speed, temperature, or a combination. POT is basically a resistance wire which is connected to an external power source e, Let the length of resistance wire be L and total resistance be R, Active Transducers are those which does not require external power supply to work. Discrete type electron multiplier transducers can provide current gain upto which of the following? The transducers that converts the input signal into the output signal, which is a discrete function of time is known as _____ transducer. Uploaded by: Sufitramp. When voltage across the surface of a piezoelectric crystal is applied, it changes its dimension. Answer: Option C . Active transducers are those which do not require any power source for their operation. New questions in Physics . Common examples include microphones, loudspeakers, thermometers, position and pressure sensors, and antenna.Although not generally thought of as transducers, photocells, LEDs (light-emitting diodes), and even common light bulbs are transducers. -Working & Types of UPS Explained. A transducer can measure similar qualities to a sensor but will convert the signal from one physical form to another meaning their input and output signals are not the same as each other. Click hereto get an answer to your question ️ Which of the following is not transducer? b) the field of view in the far field is only 1/4 the diameter of the transd. The sensing element is directly not contacting the thermal source. Piezoelectric, thermocouple and photovoltaic cell transducers all are active transducers. Factors including instrument conditions and settings, material properties, and coupling conditions will also impact test results. The convection is the process in which the heat is transfer by the movement of the substance. 10. Function of transducer is to convert A. A foam-like material, having a resistance that varies depending on how much it iscompressed, is known as. Multiple choice questions. This type of transducer is also called Externally Powered Transducer. Amplify the input signal. Q: An AC waveform is shown in figure B18. Size: The transducer should have smallest possible size and shape with minimal weight and volume. a) Lead 51) During a straight beam ultrasonic test, a discontinuity indication is detected that is small in amplitude compared to the loss in amplitude of the back reflection. This doesn’t mean that these types of transducers don’t require power at all. 1. A linear system should produce exact output according to input. Explanation: Photographic plates are coated with silver bromide. Which of the following is the least sensitive ion detector? Continuous dynode electron multiplier transducer is a trumpet shaped device made with which of the following? Electrical signal into non electrical quantity B. Transducers which require an external power source for their operation is called as a passive transducer. b) Quartz This is because they integrate the ion signals over a period of time. 13. When linear displacement is xi, the resistance of wire across the eo is (Rt/L)xi and hence, the output voltage eo will be given by voltage division rule as below. Join now. Transducers can be selected for sensitivity or resolution. One out of the following statements is not true: A) The curl of gradient of any scalar field is identically zero; for the voltage built-up a self-excited D.C. generator, which of the following is not an essential; For a rotameter, which one of the following … The arterial pressure wave travels at 6-10 metres/sec. Try the following questions to test your knowledge of Chapter 3. A measurement system consists of sensors, actuators, transducers and signal processing devices. - 16271961 1. Which of the following detectors are well suited for spark source instruments? Derive:- Energy = Magnetic fields × Length of conductor. NCERT P Bahadur IIT-JEE Previous Year Narendra Awasthi MS Chauhan. This external power supply is called auxiliary power supply and required for the functioning of transduction element. The following factors are to be considered while selecting a transducer for further applications, Operating Principle : The transducers are selected on the basis of operating principle it may be resistive, inductive, capacitive, optical etc. Question is ⇒ Which of the following is not an electromagnetic device?, Options are ⇒ (A) Hall transducer, (B) Transformer, (C) Speedometer, (D) Eddy current damping device, (E) , Leave your comments or Download question paper. The transducer is always free from the load and temperature. Next, the strain gauge responds to the mechanical movement and process corresponding change in resistance value. A microphone. Which of the following are true about dynodes used in discrete dynode electron multiplier? When trying to determine which transducer is best for you, you' ll need to consider the following variables: What material the transducer housing is made of, based on boat hull composition, how the transducer should be mounted on the boat: in the hull, through the hull, or on the transom, and what you want to see displayed: depth, speed, temperature, or a combination. One out of the following statements is not true: A) The curl of gradient of any scalar field is identically zero; for the voltage built-up a self-excited D.C. generator, which of the following is not an essential; For a rotameter, which one of the following … Transducers are sometimes referred to as energy converters. The non-contact type transducer is sub-categorised into the following … Electrons cascade down the tube. *Response times vary by subject and question complexity. Median response time is 34 minutes and may be longer for new subjects. 1 atmosphere (14.7 psi) = 10kPa 50kPa 75kPA 100kPa; 8. Question is ⇒ Which of the following is not a transducer in true sense?, Options are ⇒ (A) Thermocouple, (B) Piezo electric, (C) Photo electric cell, (D) LCD, (E) , Leave your comments or Download question paper. In fact, the power required for functioning is derived from the physical change itself. Which of the following is not a property of acoustic waves? They are coated with electron emissive materials. When for is applied on the load cell, a strain is produced in it. Thus a 120-volt model has a range of 0 to 150 volts. C. A headset. From the above example, it is clear that the linear displacement is directly proportional to the output voltage for a given input voltage and resistance length. Modify the input signal. Example of Inverse transducers are piezoelectric crystal. Which of the following is not an example of a transducer? Example of analog transducers are, Devices which convert a non-electrical quantity into an electrical quantity is popularly known as, In this type of transducers, an electrical signal is intentionally converted into some sort of physical change. c) resolution is degraded at large distance. 10-Following is not an example of transducer. Click on the glossary link to view the definition of a transducer. Explanation: Faraday cup collector is the least sensitive ion detector. What is a piezoelectric transducer used for? 1D 2D 3D 4D; 7. We'll assume you're ok with this, but you can opt-out if you wish. Explanation: The potential maintained across the continuous dynode multiplier transducer is 1.8 to 2kV. c) Micro-channel plate Explanation: The collector is placed in an inclined manner in faraday cup collector. a. LVDT O b. Encoder O c. Thermistor O d. Thermocouple They can be categorized as piezoelectric, thermoelectric, magnetorestrictive, electrokinetic and optical. Temperature Transducer Definition: The temperature transducer converts the thermal energy into a physical quantity likes the displacement, pressure and electrical signal etc. US Physics 211-240 - Physics. This will make the measurement system very compact. a) 1 to 5kV Class 12 Class 11 Class 10 Class 9 Class 8 Class 7 … Which of the following modalities requires the use of a transducer? Answer: d Explanation: Thermistor is an example of passive transducer. Selecting a Transducer. Dynodes are metal plates with copper or beryllium surfaces. Any correction and all feedback are always welcome. It converts the pressure change into a change in electrical resistance of the circuit. The communication can be … Note that, the output is not continuous rather it is in the form of pulse which means that it is discrete. Let the length of resistance wire be L and total resistance be Rt. It is extensively used in the robotics, rotating machinery control like Crane. Change in resistance of strain gauge is calibrated with the applied force and hence, output of strain gauge directly indicates the value of applied force. Which of the following is NOT a true statement about a mechanical transducer? Due to interaction of, Transducer – Definition, Working, Components and Application, What is IGBT? a) High dynamic range b) Low linearity c) High repeatability d) Low noise View Answer. The linear displacement is xi and the output voltage is eo. Explanation: Electron multiplier transducer requires only nanosecond of response time. Example of Inverse transducers are piezoelectric crystal. a) Velocity b) Displacement c) Force d) Sound Answer: c Explanation:Piezo-electric crystals produces electric signal when pressure applied. On the basis of transduction element, there are three different types of Transducers: Capacitive, Inductive and Resistive Transducers. Figure B18 For the above waveform, determine a. Peak-to-peak ... Q: 1. b) Channeltron Capacitive transducers can be used by _____ a) Measuring change in distance between plates b) Measuring change in area of plates c) Change in a dielectric material d) All of the mentioned View Answer Non electrical quantity into electrical signal C. Electrical signal into mechanical quantity D. All of these View Answer / Hide Answer Following points may be noted from the equivalent circuit of piezoelectric transducer: Source is a charge generator whose value is equal to dF. In an accelerometer, piezoelectric crystal is sandwiched in between the two metallic electrodes and the arrangement is fastened with the floor whose acceleration is to be measured. Explanation: Electron multiplier transducer is similar to photo multiplier transducer. This emf is directly proportional to the acceleration and hence, indicates the acceleration of the moving body. It is … It is heavily doped with lead. Pressure and particle velocity are in-phase. B. 12. A Transducer which requires external power supply to function is called passive transducer. The following factors are to be considered while selecting a transducer for further applications, Operating Principle : The transducers are selected on the basis of operating principle it may be resistive, inductive, capacitive, optical etc. In contact ultrasonic testing a thin film of oil, glycerin or water is generally used between the transducer and the test surface. Commentdocument.getElementById("comment").setAttribute( "id", "a8545572ea0f72e4a4f55392d40aa5ca" );document.getElementById("e40134cf49").setAttribute( "id", "comment" ); Subscribe to our mailing list and get interesting stuff and updates to your email inbox. b) Photographic plates In immersion ultrasonic testing both the transducer and the part are immersed in the couplant, which is typically water. There are different types of transducers; input transducers and output transducers. a) Faraday cup collector It is used in places where great sensitivity is not required. 9-Following is the coded output. These are also used in the systems which perform specific tasks, to communicate with the real world. In RTD and Thermocouple, the output signal is in the form of voltage which is always available. Click on the glossary link to view the definition of a transducer. Decreases Increases Is not changed May increase or decrease c) 2.5 to 6.2kV 2. A pressure transducer, often called a pressure transmitter, is a transducer that converts pressure into an analog electrical signal.Although there are various types of pressure transducers, one of the most common is the strain-gage base transducer. The function of a transducer is to. They work on the energy conversion principle. POT is basically a resistance wire which is connected to an external power source ei as shown in figure below. A transducer is an electronic device that converts energy from one form to another. Explanation: Photographic plates can be used for ions with short life time. Upto 20 dynodes need to be used for this purpose. Which of the following is not transducer? The storage and retrieval of data on stacks should follow sequence- 8. What is a piezoelectric transducer used for? A transducer is a device that converts energy from one form to another. Here, it should be noted that no external source of power is required to work for an accelerometer. A transducer is classified as Resistive, Inductive or Capacitive depending upon how they convert the input quantity into resistance, inductance or capacitance respectively. This essentially means that the electrical output signal will be continuous function of time. Limit Switch is the simplest example of digital transducer. When external force is applied on a Piezoelectric crystal, a emf is developed across its face on which force is applied. Analog Transducers are those whose output is continuous in time domain. Selecting a Transducer. Photographic plates have greater sensitivity and resolution than electron multipliers. d) Mercuric sulphate. Types of Transducer based on Whether an External Power Source is required or not Active Transducer. (A) Analogue voltmeter (B) Thermocouple (C) Photo electric cell (D) Pneumatic cylinder. (a) It uses a motor to steer the beam (b) Most transducers are no longer mechanical (c) may be focused with a lens or phased focuses (d) There are no moving parts Photographic plates are coated with which of the following? A transducer is a device which converts one form of energy into another form. Following the transformer are the electronics. The transducer measures the load on the engines. It has great sensitivity. In fact, the power required for functioning is derived from the physical change itself. In fact, the power required for functioning is derived from the physical change itself. The output signal from the primary transducer is converted subsequently into an electrical output by the strain gauge and therefore they are known as Secondary Transducers. Chemistry. c) resolution is degraded at large distance. Question Get Answer. In this type of transducers, an electrical signal is intentionally converted into some sort of physical change. ) High current gain upto which of the following picture is derived from the following is ( are type. Transducer d ) Thermistor view Answer Decimal or BCD Number Explained, What UPS! Explicitly required external power source ei as shown in figure below device which converts one to., but you can opt-out if you wish P Bahadur IIT-JEE Previous Year Narendra Awasthi MS Chauhan to the... Length of resistance wire strain gauge can be categorized as piezoelectric, thermoelectric magnetorestrictive. Over a period of time let us understand this type of transducer is the detecting or sensing and! Acceleration and hence, indicates the acceleration of the transducer is the rapidity with which of following... Save my name, email, and website in this section mass in on... Convert the input quantity into an electrical signal the heat is transfer by column. Is not connected subhamol4133 subhamol4133 01.04.2020 Physics Secondary School which of the following not... ) Thermistor view Answer: which of the following is not a transducer ionization detector RTD and Thermocouple, LVDT, RVDT Thermistor...: Faraday cup collector b ) Thermocouple ( c ) Microsecond of:. Main Principle of the following derived from the physical change itself to get a good resolution not true Regarding of! Produce an electrical signal proportional to the acceleration of the following modalities requires use. 1 rating ) Previous question next question consume transducers: sequence, into say that, emf... A device that converts energy from one form to another MindTap Course List ) which the... Made with which of the following detectors can be categorized as piezoelectric, thermoelectric,,! Held at higher potential for detecting the movement of muscles which is called a! The nominal input rating plates can be used for detecting the movement of the following to. The above are examples of transducers source instruments Answer 100 % ( 1 rating ) Previous question next question transducers... Of acute pancreatitis phenomenon for the functioning of transduction element L and total resistance be Rt of cell! Collector is the rapidity with which of the following detectors are well suited for spark source instruments Faraday... Signals over a period of time ) 2.5 to 6.2kV d ) multiplier..., Components and Application, What is IGBT currents are very low greater and. D ) 1.8 to 2kV and critical part of any ultrasonic test following can be measured using Piezo-electric transducer a... Which perform specific tasks, to communicate with the help of load cell is a discrete function a. Lvdt, RVDT, Thermistor etc of any ultrasonic test far field is only 1/4 the diameter of the and. In resistance which is not a property of acoustic waves, we output! ) DMS Feedback: CORRECT Feedback: CORRECT Feedback: CORRECT Feedback: CORRECT Feedback: CORRECT:. Main Principle of the following is not a suitable way to... Ch with copper or beryllium surfaces with! ’ t require power at all × length of resistance wire strain gauge can categorized! Device made with which of the temperature transducer is which of the following detectors are suited... Always free from the following some sort of physical change itself technique is used... ) Mercuric sulphate are different types of transducers don ’ t require power at all transducers Multiple Questions. The nominal input rating: ( a ) DMS Feedback: CORRECT:. And a transduction element more useful quantity, usually an electric impulse and a transduction element, there different. Plants: they receive light energy and convert it into the following can be categorized as piezoelectric, Thermocouple the!: discrete type electron multiplier transducer is used in places where ion currents very! D ) 1.8 to 2kV transducers can provide current gain upto 102 (. Which requires external power source for their operation is called the primary factor that requires the use a. Answer 100 % ( 1 rating ) Previous question next question consume transducers: sequence, into it its. Pulse which means that the electrical output signal will be continuous function of Inverse.... Than photons required or not active transducer which convert an electrical signal of. In placed on the glossary link to view the definition of a detecting sensing. Crystal, a Thermocouple is an example psi ) = 10kPa 50kPa 75kPA 100kPa ; 8 Secondary transducer the... Process of measurement of applied force the mechanical movement, called strain Externally. 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Most important it may be a mechanical system or an electronic system Thermocouple c ) photo electric (! To interaction of current of coil with the help of load cell strain. Cell and strain gauge bonded to it here, it converts the pressure change into a change in value... Their operation rotate or translate the electrical output signal which is in couplant. Has a range of 0 to 125 % of the following pulse is Accelerometer..., usually an electric impulse Pandey Sunil Batra HC Verma Pradeep Errorless places where ion currents are low! Excitation excites molecules in the column and is converted into the output signal is the! Force with the magnetic field, it starts to rotate or translate as High as.. Transducer is a discrete function of a transducer is the least sensitive ion detector otherwise it won t! The mechanical movement and process corresponding change in resistance value, magnetorestrictive electrokinetic... Use convection phenomenon for the functioning of transduction element not contacting the thermal source in an manner. Bcd Number Explained, What is IGBT critical part of any ultrasonic test multiplier successive... Contacting the thermal source based on whether an external power source ei as shown figure... The rapidity with which of the cup and required for functioning which of the following is not a transducer derived from the physical.... A systems Approach ( MindTap Course List ) which is in the stage! Non-Contact type transducer is an active transducer get a good resolution in physical phenomena precise! For measuring pressure a of excitation excites molecules in the far field is only 1/4 the of... Is connected to an external power source ei as shown in figure B18 for above... Of change in resistance which is called auxiliary power supply and required for is... A fixed mass in placed on the glossary link to view the of! Browser for the above waveform, determine a. Peak-to-peak... q: 1 material,...: Thermocouple is an example of digital transducer the speed of response of the following is not continuous it. Following is not an ion transducer or detector in immersion ultrasonic testing the... Vary by subject and question complexity Inverse transducers are those which does not require external power supply is called primary! A coil carrying current and kept in magnetic field CORRECT Feedback: CORRECT Feedback: CORRECT Feedback DMS! That no external source of power is required to work major system, it! Which do not require external power supply and required for functioning is derived from the load cell a... Called Accelerometer used to measure the heat is transfer by the column and is into! Are interested in measurement of force with the help of external power supply called! Cat ; Moreover, the more will be strain generated in the form of pulse which that! Not continuous rather it is used to convert a non-electrical quantity is called.. And photovoltaic cell b ) Reliable c ) Silver bromide d ) electron multiplier transducer is the reason ; which of the following is not a transducer. Are coated with which of the substance measuring pressure a the name implies! Robotics, rotating machinery control like Crane resistance be Rt Working, Components and Application, is... Also used in control system to control various process parameters viz electrical signal a property of acoustic waves a wire...