Sensors and transducer releted Top 20 mcq question and answer 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”. to understand the working principle, consider a conductor rod. Chapter 3: Sensors: Multiple choice questions: Multiple choice questions. 1. 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 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. Many industrial variables like displacement, pressure, level, moisture, thickness etc. What are the functional dimensions? • Sensor (e.g., thermometer) - … Define sensors and transducer. D) Barium titanate, A) Reference electrode Participate in the Sanfoundry Certification contest to get free Certificate of Merit. D) The time required by an instrument to warm up initially, A) Dynamic 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. These sensors typically only give knowledge of two states based on the condition being sensed. This is normally done with the help of differential equations. 1. Q1. If these analog transducers are to be interfaced with digital devices, then one has to use analog to digital converters. D) Strain gauge or capacitive transducer, A) Active transducer Discrete event, or on/off sensor, changes its state based on the occurrence of some external event. This current causes an I2R heating which raises the temperature of the thermometer above its surrounding, causing the so called self-heating error. The iron loss is 3 kW and the primary and secondary voltages are 3000V and 300 V respectively. Try the following questions to test your knowledge of Chapter 12. The happenings or disturbances about which we are unaware and lumped together are called random errors or residual errors. 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. Where r(t) is the input, Y(t) is the output and K is the static sensitivity of the transducer. 9. a) 2 b) 4 c) 6 d) 8 View Answer Transducers Questions and Answers - Sanfoundry Sensor is a type of transducer. It is a device for determining the value or magnitude of a quantity or variable. B) Static Measurements and Instrumentation Sensors & Transducers Objective Question. Once you have completed the questions, click on the 'Submit Answers for Grading' button at the bottom of this page to get your results. Wireless Sensor Networks Interview Questions ; Question 16. What is the relation between scale factor and sensitivity of a transducer? Transducer MCQs with answers Interview questions and. Try the following questions to test your knowledge of Chapter 12. Unlike thermocouples, they do not need a reference junction and this favors them in many aerospace and industrial applications. Answer : Small Size: 2 3/4 x 2 x 1 1/4 inches, easy to use … It is necessary to define a physical quantity both in kind and magnitude in order to use this information for further proceedings. Transducers based on the variation of inductance are another group of importance devices used in much application. N1 = 826 ± 5 ( = ± 0.605%) N2 = 628 ± 3 ( = ± 0.477%). 6. Multiple Choice Questions on Sensors & Transducers. What are the functional dimensions? Another common version of the variable reluctance principle. Electro Mechanical Transducers Objective Questions, Feedback Transducer System Objective Questions, Purge & Pressurization Systems Interview Questions, Process Control Instrumentation Engineering Interview Questions, Interview Questions on Gas detection System, Control Valve Interview Questions and Answers, Electrical & Instrumentation QC Interview Questions, What is FAT and SAT? Function of transducer is to convert A. In these transducers self-inductance or the mutual of a couple of coils is changed when the quantity to be measured is varied. Shielded against the effect of external electric stray fields. Wireless Sensor Networks Interview Questions ; Question 16. can be transduced into an electrical variation using capacitance variation as the primary sensing principle. Try the following questions to test your knowledge of Chapter 3. 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. 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 Here LVDT is called secondary 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. The sensitivity is expressed in. 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. Temperature affects the performance of the transducer. 1. Digital transducer gives digital outputs. Respiratory system C. Electrocardiogram system D. Nervous system Q2. Mathematical model is defined as the mathematical representation of the system and its process. All questions and answers are available in the Quiz. Sensors And Transducers, Questions For placement and exam preparations, MCQs, Mock tests., Engineering Class handwritten notes, exam notes, previous year questions, PDF free download Frequency response is thus defined as the steady – state output of a transducer when it is excited with sinusoidal input. 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 … C) Probable error They are suitable for measuring large temperature differences and high temperatures. 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. B) Self generating transducer Electrical signal into non electrical quantity B. Answer : In the absence of external power, transducer cannot work and it is called a passive transducer. Which of the following is correct for tactile sensors? 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 Linearity is a measure of the maximum deviation of the plotted transducer response from a specified straight line. 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. Sensor/transducers specifications. 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. 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. (1 + 1 + 1 = 3 Marks) 2. 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. sensors and Transducer Top 20 McqSensors and transducer releted ToP 20 mcq and explanation what is active transducer?what is passive transducer? Transducer is a device that converts the one form of information into another form without changing the information content. They convert pressure or force into electrical charge. Instruments Multiple Choice Questions & Answers (MCQs) focuses on “Transducers”. Fiber optic cable consists of outer core and inner cladding. Click on the below button to launch the Quiz. 1. By definition, average deviation is the sum of  absolute values of the  value deviations divided by the number of reading. B) Absolute error Performance criteria based upon dynamic relations constitute the Dynamic Characteristics. This transducer converts input quantity into an analog output which is a continuous function of time. How many types of transducers are there? 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”. To practice all areas of Electrical Measurements, here is complete set of 1000+ Multiple Choice Questions and Answers. Dead zone of an instrument is; 2. Example for zero-order transducer is a potentiometer. The frequency response is represented with the help of two plots namely amplitude radio verses frequency and phase angle shift versus frequency. Explain any two of those sensors. D. Vibrating level sensors View Answer / Hide Answer. The unit of mass is represented by a material standard: the mass of International prototype kilogram consisting of platinum Iridium hollow cylinder. The resistance element is usually more expensive than a thermocouple. 31. C) Fiber optic transducer In fibre-optic level sensors, the amount of light loss depends on A. • Sensor (e.g., thermometer) - … Introduction to Sensors and Transducers Differences. You have remained in right site to begin getting this info. 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”. acquire the capacitive transducers multiple choice questions with solutions link that we have enough money here and check out the link. Join our social networks below and stay updated … The gauge factor is unit resistance change per unit strain, which is due to three factors as revealed by the above equation. February 4, 2017 Function of transducer is to convert A. MCQ No - 1. Next . In the absence of external power, transducer cannot work and it is called a passive transducer. e2= relative permittivity of vapour above liquid r2= inside radius of outer cylinder. The best approximation method will be made when the number of readings would give the best result. the transduction element works as a secondary transducer. Sensors are characterized depending on the value of some of the parameters. Example: capacitive, inductive, resistance transducers. So it is called primary transducer. a) Touch sensitive b) Pressure sensitive c) Input voltage sensitive d) Humidity sensitive View Answer They are very accurate which makes them suitable for small temperature measurement. (A) Have to be machined and fit with other mating components ... Answer A. MCQ No - 2. Multiple choice questions: Chapter 12: Sensors: Chapter 12: Sensors. Their relatively large volume compared to thermocouples results in monitoring an average temperature over the length of the resistor rather than a point temperature. A. Transducers or measurement systemsare not perfect systems. … Top 1000 Instrumentation Engineering Objective Questions. Instruments Multiple Choice Questions & Answers (MCQs) focuses on “Transducers”. According to one set of definitions, a Sensor […] Difference between Sensor and Transducer What is a Sensor and Transducer? a) Noise figure of 0 db. 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. It is otherwise called as resistive sensors. These transducers convert the input quantity into an analog output which is a continuous function of time. QUESTION BANK UNIT I MECHATRONICS SENSOR AND TRANSDUCERS. Measures of certain physical quantities in thermal, electrical and illumination fields are also represented by fundamental units and are used only where those disciplines are involved and hence called auxiliary fundamental units. Sensors Questions and Answers with Solutions Examsansar. Top 10 MCQ Questions on Sensors, and practical applications of different types of sensors. 5. D) Gross error, A) Multimode D) Coupling of two coils changes with displacement, A) Strain gauge transducer only There are different views and definitions of sensors and transducers. The number of tracks must be increased and the length of each coded should be reduced, which would require fine brushes. Get Free Sensors And Transducer Objective Questions Answers input and output, when the input is invariant with respect to time is called as A. Static characteristics of instruments Sensors Questions and Answers with Solutions-Examsansar This set of Electrical Measurements & Measuring Instruments Multiple Choice Questions & Answers (MCQs) When the input to a transducer is increased from zero, there is a minimum value below which no output can be detected . Click below link to download Sensors and Transducers Syllabus Notes Question papers Question Banks 2 marks with answers Part B Questions with answers download. The communication can be … Sensor is a transducer that is used to make a measurement of a physical variable of interest. Try the following questions to test your knowledge of Chapter 3. 16) What are the instruments used to measure linear velocity? Difference between Sensor and Transducer What is a Sensor and Transducer? All the MCQ PDF materials are arranged based on the topics in OAN551 Sensors and Transducers, so it will be very helpful for the students while preparing for the Elective Paper papers. These are the errors inherent in measuring instrument because of their mechanical structure. 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. They need auxiliary apparatus and power supply. This set of Instrumentation Transducers Multiple Choice Questions & Answers (MCQs) focuses on “Sensor Systems”. D) Birefringent, A)Displacement of a contact slider on a resistance Dead zone of an instrument is; 2. Get the 25 multiple choice questions and answers on sensors & transducers for the instrumentation engineering students. Bourdon tube acting as a primary transducer senses the pressure and converts the pressure into displacement. Basic classifications of sensors. 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. Next . This is an accelerometer for measurement of accelerometer for measurement of acceleration in the range ± 4g. Multiple Choice Questions on Sensors & Transducers get this ebook capacitive transducers multiple choice questions with solutions is additionally useful. No output is given to the input of the bourdon tube. 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 ). Thus the manufacturer has to specify the deviations from the nominal value of a particular quantity. The words sensors and transducers are widely used in association with measurement systems. Answer : In the absence of external power, transducer cannot work and it is called a passive transducer. A) Active transducer B) Self generating transducer C) Passive transducer D) Primary sensor. 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. Share your answers with us through the below comments section. questions 18 questions 19, 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, multiple choice You might have heard of the terms like Sensors and Transducers, often frequently, sometimes confusingly interchangeably. Components are guaranteed to be within a certain percentage of rated value. 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