Strain Measurement Devices

Measuring strain gauge circuits in order to measure strain with a bonded resistance strain gauge it must be connected to an electric circuit that is capable of measuring the minute changes in resistance corresponding to strain.

Strain measurement devices. Non contacting video a video extensometer is a non contacting extensometer that can measure deformation by tracking the movement of two attached markers on the specimen using high resolution digital camera technology. The metallic strain gage consists of a very fine wire or more commonly metallic foil. A strain gauge also spelled strain gage is a device used to measure strain on an object. Strain gauge transducers usually employ four strain gauge elements that are electrically connected to form a wheatstone bridge circuit.

Simmons and arthur c. Choosing a strain sensor and measurement device. As the object is deformed the foil is. Whether it is a noninvasive flow sensor for medical device manufacturers a rugged pressure sensor for oil and gas exploration or a miniature load cell for aerospace applications our customers need the utmost confidence in the.

You can measure strain using several methods but the most common is with a strain gage. Key advantages of video extensometers are that they do not exhibit any influence on the test. A strain gage s electrical resistance varies in proportion to the amount of strain in the device. For nearly 30 years strain measurement devices has built an exceptional level of trust across diverse markets.

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.