Gauge factor(GF) or
strain factorof a
strain gaugeis the ratio of relative change in
electrical resistanceto the
mechanical strainε, which is the relative change in length.
"When the gauge factor of a strain gauge is 2 stress is 1050 kgcm2 Y 2.1 106 kgcm2 and R is 100 ohms then the value of DR will be?"
mercury in tube strain gage.
the types are1> mechanical strain gauge like single bonded rosette2> electrical resistance strain gauges3> elliptical c/s gauge. e..g bourdon tube etc.
A strain gauge is used to measure the strain of an object. It was invented by the inventors Edward Simmons and Arthur Ruge in 1938. There are several types of gauges (metallic, capacitance, photo-electrics and semiconductor gauges).
The essential difference is that the bonded strain gauges are bonded on to the specimen whose strain is being measured whereas the unbonded strain gauges are not bonded on to the specimen. As the bonded strain gauges are well bonded on to the specimen, the entire strain being experienced by the specimen is transferred to the strain gauge. However, the bonded strain gauges are affected by temperature changes and also due to transverse strains.For transverse strains and ambient temperature compensations, suitable circuits for compensation can be used using Wheatstone's bridge. The unbonded strain gauges cannot transfer the strain of the specimen to the strain gauge and hence it is used mainly for displacement, or pressure or force transducers. It is least affected by transverse strain and temperature compensation of unbonded gauges cis automatically eliminated using Wheatstone's bridge.
"When the gauge factor of a strain gauge is 2 stress is 1050 kgcm2 Y 2.1 106 kgcm2 and R is 100 ohms then the value of DR will be?"
How I know if the strain gauge is gone
Advantages and disadvantages of strain gauge
"Mechanical Strain gauges" do not have inductance. There are many types of strain gauge: Mechanical, photoelastic, electrical etc.... Are you wanting the inductance of an electrical strain gauge? if so which type?
it is more sensitive small gauge size low hysteresis
Load cells are strain gauge based sensors used for weighing applications.
mercury in tube strain gage.
the types are1> mechanical strain gauge like single bonded rosette2> electrical resistance strain gauges3> elliptical c/s gauge. e..g bourdon tube etc.
metallic bonded strain gauge
* a device that responds to mechanical strain. with a small change in resistance. ... * device for determining the amount of strain (change in dimensions) when a stress is applied
Babalo
Like the name suggests, a strain gauge is a device used to measure the strain of an object. The devices electrical resistance varies in proportion to the amount of strain on the device.