Strain Gauge Material

The metals can be easily cut into the zigzag foils for the formation of the strain gauges.

Strain gauge material. For experimental tests robust and flexible strain gauges which can be used under arduous conditions have distinct advantages. As the object is deformed the foil is. Metal strain gauges have a gauge factor of about 2. Earlier wire types of strain gauges were used commonly which are now being replaced by the metal foil types of gauges as shown in the figure below.

As the material expands or contracts the long thin piece of metal gets longer or shorter with the material changing the resistance of the metal. Thus a strain of 0 1 will cause a 0 24 ω change in a 120 ω strain gauge. All strain gauges within a strain gauge series offer the same carrier and measuring grid foil material. A strain gauge also spelled strain gage is a device used to measure strain on an object.

The sensitivity of metal strain gauges can be 10 6 strain. The gauge is attached to the object by a suitable adhesive such as cyanoacrylate. 12 is a sensor which responds to the expansion or contraction of a material or the strain a strain gauge consists of a long thin piece of metal which folds back on itself or zig zags across the sensor. Further discussion on sensitivity can be found in the strain gage sensitivity page.

A strain gauge fig. Therefore many specifications are identical for one strain gauge series. One of the most popular materials used for the strain gauges is the. Invented by edward e.

Applications are mainly static or quasi static strains. Materials used for the strain gauges. The material construction of the wire directly affects the sensitivity of the strain gage. Simmons and arthur c.