Learn about the measurement system of the universal test machine from three aspects

Universal testing machineThere are multifunctional tests that can be performed by experimental equipment such as tensile testing machines and pressure testing machines, but it is necessary to understand the internal structure. Only in this way can you choose a model that is more suitable for your use. The following is an introduction to the internal structure of the universal testing machine:

① Measurement of deformation

It is used to measure deformations caused by deformation measurements and installations. There are two chucks on the installation, which are connected to the photoelectric encoder installed on the top of the measurement installation through a series of transmission mechanisms. When the interval between the two chucks changes, the axis of the photoelectric encoder is driven to rotate, and the photoelectric encoder will have a pulse signal output. Then the microcontroller stops handling this signal and can obtain the deformation amount of the sample.

② Force value measurement

The measurement is completed through a force sensor, an amplifier and a data processing system. The commonly used force sensor is a strain gauge sensor. When external forces act on the sensor, it causes changes in the sensor output voltage, and the voltage output by the sensor passes through the amplifier and data processing system. Convert the electrical signal into a value, i.e. the magnitude of the applied force

③ The principle of measuring beam displacement is roughly the same as that of deformation measurement. Both the displacement of the beam is obtained by measuring the output pulse number of the photoelectric encoder.

MoreUniversal testing machineTechnical information is available in Jinan Hengsi Shanda Instrument Co., Ltd.