strain gauge

American  

noun

1. Geology. a type of extensometer designed for geophysical use.

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strain gauge British  

noun

1. a device for measuring strain in a machine or other structure, usually consisting of a metal filament that is attached to it and receives the same strain. The strain can be measured by the change in the electrical properties of the filament

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Etymology

Origin of strain gauge

First recorded in 1905–10

Example Sentences

"Normally, strain gauges would rely on the fact that when you stretch a material, it gets thinner and you change the conductivity of a material to carry a current," said Fanchini.

From Science Daily

This would likely include strain gauges to monitor the health of the Titan's carbon fibre hull.

From Salon

This would likely include strain gauges to monitor the health of the Titan’s carbon fibre hull.

From Scientific American

Pressure sensors, accelerometers, strain gauges and other instruments will measure the impact of wind and water on the test structure.

From Washington Post

The team is now engaged in a review of all the data gathered during testing - from the roughly 200 air-pressure sensors dotted around the car, plus a multitude of strain gauges, temperature readers and accelerometers.

From BBC