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Specifications include 1 mm to 630 mm measuring range, 0.03 percent and 0.05 percent full scale output resolution and +/-0.15 percent to +/-0.3 percent full scale output linearity. View Answer, 2. Transducer - MCQs with answers Q1. View Answer, 10. The term LVDT stands for the Linear Variable Differential Transformer.It is the most widely used inductive transducer that converts the linear motion into the electrical signal.. a) Static measurement View Answer. A sensor is a device that takes input from the physical environment. Which of the following is an analog transducer? Which of the following represent active transducer? This set of Instrumentation Transducers Multiple Choice Questions & Answers (MCQs) focuses on “Types of Transducers”. The application of LVDT is a) Joint motion b) Finger movement c) Limb movement d) Heart wall motion Ans : (c) 34. B. LVDT. Answers: Working of linear variable differential transducer (LVDT) is based on the principal of variable Mutual inductance. Sensors MCQ – Top 10 Multiple Choice Questions on Sensors Electric. As we know that displacement is a vector quantity representing a change in position of a body or a point with respect to a reference. Users iv. Variable permeability. Your email address will not be published. It is the most widely used inductive transducer that converts the linear motion into the electrical signal. With the addition of a few external passive d) Both static and dynamic a) Geophone ___________ and ___________ are the two issues of Requirement Analysis? A. explain working principle of lvdt global guideline. a) Strain gauge … The transformer consists one primary and two secondary windings. b) Strain gauge How many phases are there in Requirement Analysis ? Ammonia leakage in the refrigeration system is detected by_________________? LVDT is an/a _____ transducer. a) Selenium The linear variable differential transformer LVDT is a type of electrical 3 / 7. transformer used for measuring linear displacement Answer questions Oil Notify me of follow-up comments by email. View Answer, 9. If the current gain of the amplifier is X, its voltage gain is Y, then its power gain will be. Which of the following parameters is not responsible for the heat loss from a hot steam carrying bare pipe surface located in a room without fans . (adsbygoogle = window.adsbygoogle || []).push({}); TodayMCQs Which of the following can be measured using Piezo-electric transducer? LVDT is a type of electromechanical transducer that helps to convert rectilinear motion of the object into an electrical signal. View Answer, 8. It is very d) Lithium sulphate _Hasync.push(['Histats.track_hits', '']); solved an lvdt linear variable differential transformer. Ans : (b) 22. b) Thermistor ... How does it become possible to reduce the interference level generated corresponding to the stray magnetic fields in LVDT? A Linear Variable Differential Transformer (LVDT) is a displacement transducer, used to measure displacement, based on the effect of the mutual inductances. An LVDT is also known as Linear Voltage Differential Transformer is a passive transducer which translates the linear motion into an electrical signal. d) Thermocouple 20. It consists of a single primary winding P and two secondary windings S 1 and S 2 wounded on cylindrical former. _Hasync.push(['Histats.start', '1,3947665,4,0,0,0,00010000']); The size of air cored transducers in comparison to the iron core parts is. c) Secondary transducer B. By Shielding b. Inductive & Displacement Transducers - MCQs with answers 1. c) Force b) Low linearity b) … It is very accurate inductive transducer as compared to other inductive transducers. Join our social networks below and stay updated with latest contests, videos, internships and jobs! tial Transformer (LVDT) signal conditioning subsystem. In simple terms, the LVDT converts rectangular movement of an object into its equivalent electrical signal. Capacitive transducer is used for? Both the secondary windings have an equal number of turns, and they are connected in series opposition to each other. Answers: Working of linear variable differential transducer (LVDT) is based on the principal of variable Mutual inductance. b) Self-inductance The linear variable differential transformer transducer is A. Inductive transducer B. Non-inductive transducer C. Capacitive transducer D. Resistive transducer by Hank Zumbahlen The linear variable differential transformer (LVDT) is an accurate and reliable method for measuring linear distance. var hs = document.createElement('script'); hs.type = 'text/javascript'; hs.async = true; Traceability is not considered in Requirement Analysis ? Your email address will not be published. c) High repeatability The output across secondary of this transformer is the differential thus it is called so. The capacitance of a passive capacitance transducer depends on the following factors, except? A movable soft iron core is … View Answer, 3. Differential transformer commonly called linear variable differential transformer (LVDT) where the diaphragm is attached to the core of a differential transformer. (A) Capacitance (X) Which transducer is known as ‘self-generating transducer’? LINEAR VARIABLE DIFFERENTIAL TRANSFORMER (LVDT) This is the most widely used inductive transducer for translating the linear motion into an electrical signal. d) Limit switches The main advantage of the LVDT transducer over other types of displacement transducer is the high degree of robustness. Transducer - MCQs with answers Linear Variable Differential Transformer is a type of electromechanical transducer that is used to convert mechanical motion into an electric signal. B. Potentiometer. Required fields are marked *. Save my name, email, and website in this browser for the next time I comment. These transducers are constructed of special high temperature materials, allowing them to operate up to 1000°F (538°C). piezoelectricity signal. Blast furnace slag is mainly molten_________________? Distance between the two parallel plates. c) Hydrophone C. Linear variable differential transformer (LVDT) D. Photodiode. The area of the two parallel plates View Answer, 7. All circuit functions are included on the chip. Strain gauge. Answer/ Hint These short solved questions or quizzes are provided by Gkseries. Pressure Transmitters Pressure sensors vary considerably in their design technology used, performance and application. Because there is no physical contact across the sensing element, there is no wear in the sensing element. (document.getElementsByTagName('head')[0] || document.getElementsByTagName('body')[0]).appendChild(hs); a) X/Y. MCQ Questions of all subjects for Class 12 NCERT Books. a) Velocity Manufacturer and custom manufacturer of linear variable differential transformer (LVDT) sensors including magneto-inductive displacement transducers. The term LVDT stands for the Linear Variable Differential Transformer. View Answer, 5. C. Variable reluctance. The class of transformer type displacement transducers that develop induced emfs related to the angular position of its rotor when excited by ac supply is called. Requirements analysis is critical to the success of a development project ? It is the ability of the sensor to indicate the same output over a period of time for a constant input. solved 1 a plot the voltage vs displacement graph of. Electrical Instruments MCQ Objective questions & answers are available for an Electrical Engineering students to clear various technical interview, competitive examination, and another entrance exam. c) Sensitivity is inverse of scale factor A transducer converting ground movement or velocity to voltage is known as ________________ The following are resistive passive transducers, except? All Rights Reserved. a) Encoders The requirements that result from requirements analysis are typically expressed from one of three perspectives or views.WhaT is that perspective or view ? Because the device relies on the coupling of magnetic flux, an LVDT can have infinite resolution. Middle level stakeholder. One of the most important features of an LVDT is its friction-free operation. d) Reluctance Starting from least to most important, choose the order of stakeholder ?i. })(); Working of linear variable differential transducer (LVDT) is based on the principle of variable_____________________? In normal use, there is no mechanical contact between the LVDT's core and coil assembly, so there is no rubbing, dragging, or other source of friction. 1. Explanation: Electrical transducers in general respond to physical quantities that are non-electrical such as pressure, temperature, force etc and generate equivalent electrical signals at their output. The Linear Variable Differential Transformer (LVDT) is the most common mutual inductance element. What is the relation between scale factor and sensitivity of a transducer? interview questions for fresher for instrumentation. (D) None of these (X). a) Active transducer Explanation: Linear variable differential transformer (LVDT) is a type of transformer used for measuring displacement, and it has the same principle of operation of transformer. Q6. LVDT can record even very small movements by converting the rectilinear How does the value of mutual inductance vary between two coils of an inductive transducer? Answer : These transducers convert the input quantity into an analog output which is a continuous function of time. The NewTek HT Series AC LVDTs are specially designed for Extreme High Temperature applications demanding the highest levels of reliability while performing in the rugged environments that are required for industrial equipment. Requirements should specify ‘what’ but not ‘how’? This feature is particularly useful in materials testing, vibration displacement measurements, and high resolution dimensional gaging systems. D. Synchro. d) Low noise (C) Mutual inductance () The output across secondary of this transformer is the differential thus it is called so. a) Smaller b) Larger c) Same d) Unpredictable. The input can be in the form of light, heat, pressure, moisture, or any other physical property. b) Quartz a) Scale factor is double of sensitivity b) Passive transducer The LVDT models closely the ideal Zeroth-order displacement sensor structure at low frequency, where the output is a direct and linear function of the input. b) Pickup var _Hasync= _Hasync|| []; c) Digital tachometers Measurement, Instrumentation & Calibration, here is complete set of 1000+ Multiple Choice Questions and Answers, Prev - Instrumentation Transducers Questions and Answers – Measurement and Callibration, Next - Instrumentation Transducers Questions and Answers – Performance Characteristics of Transducers, Instrumentation Transducers Questions and Answers – Measurement and Callibration, Genetic Engineering Questions and Answers – Restriction Endonuclease & Phosphatases – 2, Fermentation Technology Questions and Answers, Analog Communications Questions and Answers, Electrical Engineering Questions and Answers, Electrical & Electronics Engineering Questions and Answers, Electrical Measurements Questions and Answers, Analytical Instrumentation Questions and Answers, Instrumentation Engineering Questions and Answers, Biomedical Instrumentation Questions and Answers, Instrumentation Transducers Questions and Answers – Heat Flow Balance Systems, Instrumentation Transducers Questions and Answers – Measurement of Resistance, Instrumentation Transducers Questions and Answers – Measurement of Voltage, Instrumentation Transducers Questions and Answers – Thermo Electric Transducers, Instrumentation Transducers Questions and Answers, Instrumentation Transducers Questions and Answers – Piezo Electric Transducers, Biomedical Instrumentation Questions and Answers – Classification of Transducers, Instrumentation Transducers Questions and Answers – Smart Sensors. Sanfoundry Global Education & Learning Series – Instrumentation Transducers. LVDTs find uses in modern machine-tools, robotics, avionics, and computerized manufacturing. c) LVDT These short objective type questions with answers are very important for Board exams as well as competitive exams. (B) Resistance (X) a) Mutual inductance b) Scale factor is inverse of sensitivity The primary winding is placed between the secondary windings. Electronics and Instrumentation Multiple Choice Questions(MCQs) & Answers for competitive exams. The principle of operation of LVDT is based on the variation of. Transducer - MCQs with answers Definition of LVDT. The Linear Variable Differential Transformer (LVDT) is a displacement measuring instrument and is not a strain-based sensor. _Hasync.push(['Histats.fasi', '1']); chapter 3 multiple choice questions and answers. instrumentation transducers questions and answers – types. Ans : (b) 21. d) Sensitivity is equal to scale factor A. hs.src = ('//s10.histats.com/js15_as.js'); A. It is used in conjunction with LVDTs to convert transducer mechan-ical position to a unipolar or bipolar dc voltage with a high degree of accuracy and repeatability. d) Analog transducer essentially a non-contacting transducer that can convert the rectilinear motion of an object to which it is mechanically coupled to an analog signal which can be used to determine the displacement of the object Function of transducer is to convert A. (function() { c) Transient measurement Requirements Analysis is an Iterative Process ? a) High dynamic range 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. It can be linear or angular (rotational) motion. c) Rochelle salt Which of the following is not a characteristic of an ideal transducer? Entry level Personnel iii. Q5. a. Coad and Yourdon suggested _______________ selection characteristics that should be used as an analyst considers each potential object for inclusion in the requirement analysis model ? It is also used in some hydraulic applications, steam control and pressure measurement. Impress Sensors & Systems Ltd, considers the advantages of using LVDT technology for pressure sensors used in harsh environments, including the nuclear industry. Principles of Marketing Multiple Choice Questions Books. Linear Variable Differential Transformers. Participate in the Sanfoundry Certification contest to get free Certificate of Merit. View Answer, 6. © 2011-2020 Sanfoundry. Sensors are usually combined with some electronic components so as to obtain some useful data. The LVDT is a kind of transformer that converts the linear displacement into the electrical signals. This can be considered to be a versatile transducer element for most of the electromechanical measuring systems with regards to resolution, hysteresis, dynamic response, temperature characteristics, linearity and life. What is the principle of operation of LVDT? 2020. b) Displacement a) Self inductance b) Mutual inductance c) Reluctance d) Permanence. The linear variable differential transformer (LVDT) (also called linear variable displacement transformer, linear variable displacement transducer, or simply differential transformer) is a type of electrical transformer used for measuring linear displacement (position). d) Sound View Answer, 4. Which of the following is not a diagram studied in Requirement Analysis ? An LVDT (linear variable differential transformer= is an electromechanical sensor used to convert mechanical motion or vibrations, specifically rectilinear motion, into a variable electrical current, voltage or electric signals, and the reverse. Industrial Instrumentation Interview Questions c) Permanence d) Sonar transponder Managers ii. Which of the following is used in photo conductive cell? b) Dynamic measurement To practice all areas of Instrumentation Transducers, here is complete set of 1000+ Multiple Choice Questions and Answers. Venturi is associated with a) Venous blood pressure b) Digital plethysmography c) Dialysate flow in artificial kidney d) Blood flow in heart lung machine Ans : (d) 35. ... To practice all areas of Electrical Measurements, here is complete set of 1000+ Multiple Choice … ) Mutual inductance element combined with some electronic components so as to some. Special high temperature materials, allowing them to operate up to 1000°F ( 538°C ) reliable for! Winding is placed between the secondary windings have an equal number of turns, and high resolution dimensional systems... 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Can have infinite resolution an LVDT is a device that takes input from the physical environment transducers. Which is a passive transducer which translates the linear motion into the electrical signal Digital tachometers )... Displacement measurements, and website in this browser for the linear variable differential transformer corresponding the. Should specify ‘ what ’ but not ‘ how ’ and high resolution gaging. Its power gain will be called so of linear variable differential transducer ( LVDT ) D. Photodiode ) Self-inductance ). Be linear or angular ( rotational ) motion a development project the core of a differential transformer ( )!

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