A strain gauge is a passive transducer and is employed for converting

A strain gauge is a passive transducer and is employed for converting 

 (a) Pressure into change in resistance (b) Force into displacement (c) Mechanical displacement into a change of resistance (d) None of the above 
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Answer :

A
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Related questions

State two examples of passive transducer.

Description : State two examples of passive transducer.

Last Answer : Examples of passive transducer: 1. LDR 2. Thermistor 3. Strain Gauge 4. Resistive transducers. 5. Inductive transducers. 6. Photoconductive 7. Capacitive transducers. 8. Magnetoresistive 9. Thermoresistive 10. Electroresistive 11. RTD

Compare active and passive transducer.

Description : Compare active and passive transducer.

Last Answer : Active Transducer Passive transducer Don't require external power for operation. Require external power supply for operation. It is also called selfgenerating transducer. It ... energy controlling Principle. Ex-Thermocouple, piezoelectric. Ex Thermistor, Strain Gauges.

Draw and explain the operation of pressure transducer having diaphragm as a primary sensor and four strain gauges as secondary sensors.

Description : Draw and explain the operation of pressure transducer having diaphragm as a primary sensor and four strain gauges as secondary sensors.

Last Answer : Pressure measurement with strain gauges on diaphragm: Description: This method uses the principle of converting pressure into a displacement by elastic elements which act as primary ... unbalance in the bridge circuit, producing an output voltage proportional to the applied pressure.

LVDT used for displacement measurement is a/an __________ transducer. (A) Passive (B) Active (C) Capacitive (D) None of these

Description : LVDT used for displacement measurement is a/an __________ transducer. (A) Passive (B) Active (C) Capacitive (D) None of these

Last Answer : (A) Passive

Compare active transducer with passive transducer based on working principle, example, advantage, application

Description : Compare active transducer with passive transducer based on working principle, example, advantage, application

Last Answer : Compare active transducer with passive transducer based on working principle, example, advantage, application

Explain working of resistance strain gauge

Description : Explain working of resistance strain gauge

Last Answer : Principle working: Strain gauge is a passive, versatile transducer and it is often used for measuring weight, pressure, force and displacement .They sense the strain produced in a wire due to applied ... , allowing the strain measured to be related to the applied stress and hence the force applied.

Explain in brief the working principle of strain gauge. Define gauge factor and list out types of strain gauges.

Description : Explain in brief the working principle of strain gauge. Define gauge factor and list out types of strain gauges.

Last Answer : If a metal conductor is stretched or compressed, the resistance changes as both length and diameter change. There is a change in the value of resistivity of the conductor also when it is ... metal film strain gauges 6. Diffused metal strain gauges 7. Sputter deposited thin metal strain gauge

How strain gauge is used for pressure measurement, explain?

Description : How strain gauge is used for pressure measurement, explain?

Last Answer : strain gauge: - strain gauge is used for pressure measurement as one of the arm of a wheatstones' bridge, the pressure is applied to the strain gauge through diaphragm elastic pressure sensor.

Dummy strain gauge is used in conjunction with the main strain gauge to _____.

Description : Dummy strain gauge is used in conjunction with the main strain gauge to _____.

Last Answer : Dummy strain gauge is used in conjunction with the main strain gauge to compensate temperature effects.

Gauge factor of strain gauge is defined as the ratio of per unit change in the ______.

Description :  Gauge factor of strain gauge is defined as the ratio of per unit change in the ______.

Last Answer :  Gauge factor of strain gauge is defined as the ratio of per unit change in the resistance to the per unit change in the length of the element.

If Poisson's ratio of a resistance wire strain gauge is 1.8, then neglecting piezo-resistive effects, its Gauge

Description : If Poisson's ratio of a resistance wire strain gauge is 1.8, then neglecting piezo-resistive effects, its Gauge factor is :  (A) 2.8 (B) 2.6 (C) 4.6 (D) 3.6

Last Answer : If Poisson's ratio of a resistance wire strain gauge is 1.8, then neglecting piezo-resistive effects, its Gauge factor is : 4.6

Gauge conversion means: (a) Converting MG to BG (b) Converting NG to MG (c) Converting NG to BG (d) Converting MG/NG to BG*

Description : Gauge conversion means: (a) Converting MG to BG (b) Converting NG to MG (c) Converting NG to BG (d) Converting MG/NG to BG*

Last Answer : (d) Converting MG/NG to BG*

Measuring force without a strain gauge?

Description : Measuring force without a strain gauge?

Last Answer : answer:Do you want to know the force or the pressure at the tip? Will this be changing rapidly? Let's assume you want the force first and you will calculate the pressure from the force and ... device and work out the force from the assembly's resonant freq. Lots of possibilities. Not enough detail.

Which of the listed devices may be used as a digital device? A. variable resistor B. diode C. strain gauge D. thermistor

Description : Which of the listed devices may be used as a digital device? A. variable resistor B. diode C. strain gauge D. thermistor

Last Answer : Answer: B

__________ circuit is most commonly used to measure strain with the help of a strain gauge. (A) Ballast (B) Voltage balancing potentiometric (C) Simple current sensitive (D) None of these

Description : __________ circuit is most commonly used to measure strain with the help of a strain gauge. (A) Ballast (B) Voltage balancing potentiometric (C) Simple current sensitive (D) None of these

Last Answer : Option B

How to Measure a Strain Gauge

Description : How to Measure a Strain Gauge

Last Answer : How to Measure a Strain Gauge There are several ways to measure strain. The most common is to use a strain gauge. In laymen's terms, a strain gauge is a device whose electrical ... who supply all the necessary strain gauges and materials from connection tags, to binding adhesives and training.

State function of strain gauge. Give its types and explain working of any one type of it.

Description : State function of strain gauge. Give its types and explain working of any one type of it.

Last Answer : Function of strain gauge: - ➢ The strain gauge is a passive, resistive transducer which converts the mechanical elongation and compression into a resistance change. ➢ This change in ... change in resistivity. 3. Silicon and germanium are used as resistive material for semiconductor gauges

Sketch DC signal conditioning circuit for pressure measurement using strain gauge. Justify it.

Description : Sketch DC signal conditioning circuit for pressure measurement using strain gauge. Justify it.

Last Answer : Diagram: Figure: DC signal conditioning circuit for pressure measurement using strain gauge Where, Rg= strain gauge resistance. Explanation: In order to measure strain with ... millivolts output per volt input. The Wheatstone circuit is also well suited for temperature compensation.

Describe strain gauge with labelled diagram.

Description : Describe strain gauge with labelled diagram.

Last Answer : A Strain gauge is a sensor whose resistance varies with applied force. It converts force, pressure, tension, weight, etc., into a change in electrical resistance which can then be measured. When external ... to the applied strain. So, the voltmeter can be calibrated in terms of strain or force. 

Define : i) Strain gauge ii) Gauge factor

Description : Define : i) Strain gauge ii) Gauge factor

Last Answer : i) Strain gauge is a resistance transducer whose resistance varies with applied force; It converts force, pressure, tension, weight, etc., into a change in electrical resistance which can then be measured ... is defined as the ratio of per unit change in resistance to per unit change in length 

The advantage of a semiconductor strain gauge cover the wire round strain gauge is that

Description : The advantage of a semiconductor strain gauge cover the wire round strain gauge is that

Last Answer : The advantage of a semiconductor strain gauge cover the wire round strain gauge is that it is more sensitive

The Semiconductor strain gauges typically have much higher gauge factors than those of metallic strain

Description : The Semiconductor strain gauges typically have much higher gauge factors than those of metallic strain gauges, primarily due to : (A) higher temperature sensitivity (B) higher Poisson’s ratio (C) higher piezoresitive coefficient (D) higher magnetostrictive coefficient

Last Answer : The Semiconductor strain gauges typically have much higher gauge factors than those of metallic strain gauges, primarily due to : higher piezoresitive coefficient

In a strain measuring device, using a strain gauge, the output quantity is ....

Description : In a strain measuring device, using a strain gauge, the output quantity is  A) Voltage B) resistance C) Impedance D) either A) or B)

Last Answer : In a strain measuring device, using a strain gauge, the output quantity is Voltage

State principle of operation of piezo-electric transducer. State its application.

Description : State principle of operation of piezo-electric transducer. State its application.

Last Answer : The piezoelectric element used for converting mechanical movement into electric signals. The mechanical deformation generates charges and this charge appears as a voltage across the electrodes.  ... destructive test (NDT) equipments 6. Piezoelectric materials are used in ultrasonic transducers. 

Write example of each type (i) Primary transducer (ii) Active transducer (iii) Electrical transducer (iv) Digital transducer

Description : Write example of each type (i) Primary transducer (ii) Active transducer (iii) Electrical transducer (iv) Digital transducer

Last Answer : (i) Active transducer:-Thermocouple, piezoelectric, photovoltaic cell (ii) Primary transducer:- Bourdon tube, bellows, (iii) Electrical transducer.:- LVDT,RVDT, Hall effect, strain gauge, ... , optical pyrometer, radiation pyrometer (iv) Digital transducer:- Linear Encoder, digital taco generator

State the use of RADAR type level transducer & list two advantages.

Description : State the use of RADAR type level transducer & list two advantages.

Last Answer : Applications of radar type transducer: i) RADAR type level transducer is suitable for large tanks with range upto 200m for level measurement. ii) It is used for continuous level measurement. ... iii) Not affected by corrosive materials. iv) Can be used for hard to handle' applications.

List any two materials for Piezoelectric transducer.

Description : List any two materials for Piezoelectric transducer.

Last Answer : i) Quartz crystal, ii) Barium titanete , iii) Rochelle salt , iv) Lithium Sulphate, v) Potassium Dihydrogen phosphate.

Classify transducer. Write one sentence about each of them.

Description : Classify transducer. Write one sentence about each of them.

Last Answer : .embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }

Explain how AC current is measured using hall effect transducer.

Description : Explain how AC current is measured using hall effect transducer. 

Last Answer : This type of sensor works on a simple electromagnetic principle.  In above diagram of the Hall effect. A current is conducted through a thin piece of foil from terminal I and ground. ... called the Hall-effect voltage is produced at the terminals attached to the opposite sides of the foil.

Discuss any 4 points to be considered while selecting a transducer for its intended applications.

Description : Discuss any 4 points to be considered while selecting a transducer for its intended applications. 

Last Answer : 1. Operating range 2. Operating principle 3. Sensitivity 4. Accuracy 5. Frequency response and resonant frequency 6. Errors 7. Environmental compatibility 8. Usage and ruggedness. 9. ... 10. Stability and Reliability 11. Loading effect 12. Static characteristics 13. General selection criteria

Define the term Transducer and sensor.

Description : Define the term Transducer and sensor.

Last Answer : Transducer : Transducer is defined as a device which converts one form of energy into another form. Sensor : Sensor is a device which detects or measures a physical property and records, indicates, or otherwise responds to it.

Explain in brief AC Current , RMS Indication using Hall Effect Transducer.

Description : Explain in brief AC Current , RMS Indication using Hall Effect Transducer.

Last Answer : When an ac current passes through the conductor it sets up a magnetic field around the conductor. This magnetic field is proportional to the current. A Hall Effect Transducer is placed in a ... flowing in the conductor. In this way, the current is measured using the Hall effect transducer. 

Draw and explain in brief speed measurement using non-contact type transducer.

Description : Draw and explain in brief speed measurement using non-contact type transducer. 

Last Answer :  i) Photoelectric Tachometer:  This method of measuring speed consists of mounting an opaque disc on the rotating shaft. The disc has a number of equidistant holes on its periphery. At one side of the disc a light source is ... (pulses per second /number of teeth)  = (P/T) rps = (P/T) *60 rpm.

List any six criteria for selecting a proper transducer for an application.

Description : List any six criteria for selecting a proper transducer for an application.

Last Answer : Criteria for selecting a transducer for an application: 1. Electrical output of transducer (Current/voltage) 2. Range of measurement i.e maximum and minimum values of parameter to be measured. ... . 11. Loading effect. 12. Stability & Reliability of transducer 13. Cost and availability

State Hall effect. Explain in brief operation of hall effect transducer with its suitable applications.

Description : State Hall effect. Explain in brief operation of hall effect transducer with its suitable applications.

Last Answer : Principle: The principle of working of a Hall Effect Transducer is that if a strip of conducting material carries' a current in the presence of a transverse magnetic field, a difference of ... a transverse magnetic field passes through the strip, an output voltage appears across the output leads.

State two examples of active transducer.

Description : State two examples of active transducer.

Last Answer : Examples of active transducer: 1. Thermocouple 2. photovoltaic cells (solar cells) 3. Piezoelectric crystals. 4. Thermoelectric 5. Magnetostrictive 6. Electrokinetic

Compare primary and secondary transducer (any two points).

Description : Compare primary and secondary transducer (any two points).

Last Answer : i) Primary Transducer: The detector or sensing element which senses the physical phenomenon and converts it into a measurable quantity, whose output forms the input of another transducer is ... analogous output of primary transducer into an electrical quantity is called a secondary transducer.

List non contact type transducer and compare them on the basis of any two factors.

Description : List non contact type transducer and compare them on the basis of any two factors.

Last Answer : Magnetic pick-up Photoelectric This tachometer generator consists of a metallic tooth rotor mounted on the shaft whose speed is to be measured. This method of measuring speed of rotation ... by an electronic counter which can be directly calibrated in terms of speed in rpm.

List two advantages and disadvantages of photoelectric pickup transducer.

Description : List two advantages and disadvantages of photoelectric pickup transducer.

Last Answer : Advantages : 1. No direct physical contact of the meter with rotating shaft whose speed to be measured. Hence no additional load on the shaft. 2. Output is in digital format. 3. No A/D converted ... (typically 50,000 hours.) 2. The accuracy of meter depends on the error represented by one pulse.

State selection criteria of transducer.

Description : State selection criteria of transducer.

Last Answer : * Operating Principle : The transducers are selected on the basis of operating principle it may be resistive, inductive, capacitive, optical etc.  * Operating range : The range ... : The transducer should maintain input and output characteristic for the selected environmental condition. 

Classify transducer in detail.

Description : Classify transducer in detail.

Last Answer : 1. Active and Passive transducers. 2. Analog and digital transducers. 3. Primary and secondary transducers. 4. Electrical and mechanical transducers. 5. Transducers and inverse transducers. 

State the necessity of transducer.

Description : State the necessity of transducer.

Last Answer : Necessity of Transducer: Input quantity for most of the Instrumentation systems is non - electrical quantity. To convert non- electrical quantities like heat, pressure, level, flow rate, ... use electrical methods and techniques for measurement, manipulation and control, transducers are required.

List four electric pressure transducer.

Description : List four electric pressure transducer.

Last Answer : List of electric pressure measuring devices: 1. Diaphragm with strain gauge 2. Bourdon Tube with LVDT 3. Differential Pressure cell 4. Piezoelectric type pressure transducer 5. Capacitance pressure transducer 6. Optical Pressure transducer 7. Resistive pressure transducer 

Define transducer. Give two examples.

Description : Define transducer. Give two examples.

Last Answer : Transducer - It converts one form of signal into another form. A transducer is a device that is used to convert a physical quantity into its corresponding electrical signal.  Classification - 1. Active transducer 2. Passive transducer 

An inverse transducer converts

Description : An inverse transducer converts   (a) electrical energy to any other form of energy (b) electrical energy to light energy (c) mechanical displacement into electrical signal (d) electrical energy to mechanical form  

Last Answer : A

Write the procedure of converting a given current source into voltage source.

Description : Write the procedure of converting a given current source into voltage source.

Last Answer : Conversion of current source into equivalent voltage source:  Let IS be the practical current source magnitude and   ZI be the internal parallel impedance.   VS be the equivalent practical voltage source magnitude and   ZV be the internal series impedance of the voltage source.

Converting 7,000 nA into microampere will result in: A. 0.007 µA B. 0.7 µA C. 700 µA D. 7 µA

Description : Converting 7,000 nA into microampere will result in: A. 0.007 µA B. 0.7 µA C. 700 µA D. 7 µA

Last Answer : Converting 7,000 nA into microampere will result in: 7 µA

The process of converting a.c. into d.c. is called:

Description : The process of converting a.c. into d.c. is called: (1) Amplification (2) Modulation (3) Rectification (4) Factorization

Last Answer : The process of converting a.c. into d.c. is called: Rectification.

Define gauge pressure and differential pressure

Description : Define gauge pressure and differential pressure

Last Answer : (i) Gauge pressure: Gauge pressure is defined as the difference between actual pressure and atmospheric pressure.  Gauge pressure= Pabsolute - Patmospheric  (ii) Atmospheric pressure: Atmospheric pressure ... atmosphere around it. It shows the difference between two pressures of the same unit. 

Define absolute pressure and gauge pressure. State the different units for pressure measurement.

Description : Define absolute pressure and gauge pressure. State the different units for pressure measurement.

Last Answer : Definition: Absolute pressure: Absolute pressure is defined as actual total pressure including atmospheric pressure actin On a surface. PAbsolute= PAtmospheric + PGauge Gauge pressure: Gauge pressure is defined ... mm of mercury column (blood pressure) inches of water Barmillibar (weather) Torr