Strain gauge | Wikipedia audio article
Channel: wikipedia tts
Date: 03/10/2019

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Strain_gauge


00:00:37 1 Physical operation
00:01:52 2 Gauge factor
00:03:54 3 In practice
00:05:55 3.1 Variations in temperature
00:08:30 4 Errors and compensations
00:12:39 5 Geometries of straingages
00:13:12 6 Other types
00:15:45 7 Mechanical types
00:16:16 8 Non-contact strain measurements
00:17:26 9 See also



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Voice name: en-US-Wavenet-A


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SUMMARY
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A strain gauge is a device used to measure strain on an object. Invented by Edward E. Simmons and Arthur C. Ruge in 1938, the most common type of strain gauge consists of an insulating flexible backing which supports a metallic foil pattern.  The gauge is attached to the object by a suitable adhesive, such as cyanoacrylate.  As the object is deformed, the foil is deformed, causing its electrical resistance to change.  This resistance change, usually measured using a Wheatstone bridge, is related to the strain by the quantity known as the Gauge factor.