A Strain Gauge Material Should Have Low Mcq

The power input and output in a device are 3650 w and 3385 w with each reading in doubt by 10 w.

A strain gauge material should have low mcq. The glue used should be specially prepared for use in the strain gauge. 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. Hi friends in this article i am going to describe you strain gauge working principle gauge factor and strain gauge load cell working. Bonded metal foil strain gauge.

A strain gauge material should have low. The material construction of the wire directly affects the sensitivity of the strain gage. A strain gauge material should have low a. Here is complete set of 1000 multiple choice questions and answers.

Further discussion on sensitivity can be found in the strain gage sensitivity page. Bonding element in a strain gauge must have a zero insulation resistance b. Its thickness should not exceed 10 micrometers. Select constantan advance copel alloy wire if.

If a metal piece is subjected to a tensile stress the metal length will increase and thus will increase the electrical resistance. 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 operation of the glue should isolate the wires from the material being tested. Applications are mainly static or quasi static strains.

The strain gauge should have low resistance temperature coefficient. A strain gauge is basically used to measure the strain in a work piece. 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. All of the above.

Measurements and instrumentation part two instructions. View answer workspace report discuss in forum. The resistance of a strain gauge should be high. The strain gauge should be properly prepared by ideally gluing the strain gauge to the material being tested.

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. It should possess linear characteristics in order to have the constancy of calibration over its entire range. Some examples of primary sensors are a liquid in glass thermometer a thermocouple and a strain gauge. Click the answer button to see the correct answer.