How to detect the sensitivity of the tensile machine?

Generally speaking, the output signal of the tensile machine sensor is very weak, usually only a few mV. If I directly measure this signal, it is very difficult and cannot meet the high-precision measurement requirements. Therefore, the tensile machine must amplify this weak signal through an amplifier. The signal voltage amplified by the tensile machine manufacturer can reach 10V. At this time, the signal is an analog signal. This analog signal is converted into a digital signal through a multiple switch and an A/D conversion chip. The tensile machine then performs data processing, and at this point, the force measurement comes to an end.

 

 

How to detect the sensitivity of the tensile machine?

 

There are two chucks on the device, which are connected to the photoelectric encoder mounted on the top of the measuring device through a series of transmission mechanisms. When the distance between the two chucks changes, the shaft of the photoelectric encoder is driven to rotate, the photoelectric encoder There will be pulse signal output. Then the single-chip microcomputer processes this signal, and the deformation amount of the sample can be obtained. The touch key operation mode, the display real-time display, is convenient and quick. The beam can be adjusted quickly and slowly when the specimen is clamped, and has functions such as overload maintenance.

 

Known from data mechanics. It has high accuracy and sensitivity in the measurement and control of load, deformation and displacement. It can also carry out automatic control salt spray test of constant velocity loading, constant velocity deformation, and constant velocity displacement, and has low-cycle load cyclic reciprocating and deformation cyclic reciprocating , The function of reciprocating displacement. This series of models is mainly suitable for the salt spray test with a load of less than 100kN. It has a variety of optional model structures, such as the following space models, pull-up and lower pressure dual-space models, and upper-pressure pull-down dual-space machines. Models, etc., can be equipped with environmental chambers and high-temperature furnaces for environmental salt spray tests.

 

 

After the precision of the tensile machine is determined, all the gaps under the machine base are filled with cement slurry, and the machine base and the cement foundation are well combined to prevent the test machine from being unlevel due to vibration during use. After the anchor nut of the Jiangsu tensile machine is poured and the cement is not dried, the manufacturer of the tensile machine is not allowed to tighten the anchor nut and start the testing machine. Cement drying time is generally no less than 1015 days) After the cement is completely dry, tighten the good luck foot nut and wire tension machine.

 

 

The above is the relevant introduction of how to detect the sensitivity of the tensile machine, and the accuracy of the tensile machine's device is reviewed, and whether the price of the tensile machine is consistent with the alignment accuracy. The digital display tensile machine should be re-aligned if it does not meet the requirements. During the use of the tensile machine, because the vibration during the test is prone to loosening, the relevant parts should be tightened after the tensile machine has been used for a period of time.