A Strain Gauge Material Should Have Low Mcq

Some examples of primary sensors are a liquid in glass thermometer a thermocouple and a strain gauge.

A strain gauge material should have low mcq.

It should possess linear characteristics in order to have the constancy of calibration over its entire range. The strain gauge should have low resistance temperature coefficient. A strain gauge material should have low a. The material construction of the wire directly affects the sensitivity of the strain gage.

The strain gauge should be properly prepared by ideally gluing the strain gauge to the material being tested. Strain gauge is a passive transducer that converts a mechanical elongation or displacement produced due to a force into its corresponding change in resistance r inductance l or capacitance c. The operation of the glue should isolate the wires from the material being tested. Its thickness should not exceed 10 micrometers.

The linearity should be maintained within accuracy limits. Click the answer button to see the correct answer. Hi friends in this article i am going to describe you strain gauge working principle gauge factor and strain gauge load cell working. A strain gauge is a passive transducer that converts mechanical displacement into the change of resistance a strain gauge sensor is a thin wafer like device that can be attached to a variety of materials to measure applied strain.

The glue used should be specially prepared for use in the strain gauge. A strain gauge works properly only if the bonding material used is durable and keeps the gauge together to the surface of the material that is being tested. All of the above. In the case of the mercury in glass thermometer the output reading is given in terms of the level of the mercury and so this particular primary sensor is also a complete measurement system in itself.

The power input and output in a device are 3650 w and 3385 w with each reading in doubt by 10 w. Bonding element in a strain gauge must have a zero insulation resistance b. View answer workspace report discuss in forum. If a metal piece is subjected to a tensile stress the metal length will increase and thus will increase the electrical resistance.

The percentage uncertainty in losses is 7 55 3 77 15 09 11 32 answerb a meter coil has a resistance of 100 ω and a full scale deflection current of 10 ma. Here is complete set of 1000 multiple choice questions and answers. A strain gauge is basically used to measure the strain in a work piece. Select constantan advance copel alloy wire if.

The resistance of a strain gauge should be high. Applications are mainly static or quasi static strains. Bonded metal foil strain gauge. Further discussion on sensitivity can be found in the strain gage sensitivity page.