Extensometer plays an important role in tensile testing machine

Extension meter inTension testerThe extensometer can be roughly divided into mechanical extensometers, optical extensometers, and electromagnetic extensometers, but they are all important. The detailed introduction of the extensometer will be introduced by our company engineers as follows:

Extensometers are sensors that sense the deformation of the specimen. Strain gauge extensometers are a type that is widely used because of their simple principle and easy installation. According to the measurement object, the extensometer can be divided into axial extensometer, transverse extensometer, and clamp extensometer. Radial extensometer: used to detect the radial shrinkage deformation of standard specimens. It is used in conjunction with an axial extensometer to determine the Poisson ratio μ. It converts the radial deformation (or deformation in a transverse direction) into electricity, and then uses a secondary instrument to measure, record or control another device. Clip-type extensometer: used to detect crack opening displacement. Clip-type extensometer is one of the commonly used instruments in fracture mechanics experiments, and it is mostly used in the experiments of determining material fracture toughness. High precision, easy installation and easy operation. When the specimen is broken, the extensometer can automatically break away from the specimen, which is suitable for static and dynamic deformation measurements.

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