strain gauge
noun1
A device that measures the strain in a structural element by measuring changes in electrical resistance of a sensor attached to the element under investigation.
- A strain gauge in the couplers of this unit [...] measures continuously the drawbar tension exerted by the locomotives at the front end and the bogie wagons trailing to the rear of it.1964 November, “Automatic helper locomotive control on the Louisville & Nashville RR, USA”, in Modern Railways, page 354:
- Related terms
- extensometer