1 Firstly, the force value sensor of the tensile machine, because the quality of the sensor determines the accuracy of the testing machine and the stability of the measuring force. At present, the small force value of the sensor for the tensile machine on the market generally uses the S-type sensor, and the large value generally uses the spoke. For the sensor, the inside of the sensor is generally a strain gauge. If the accuracy of the strain gauge is not high or the rubber for fixing the strain gauge is not good enough, or the material of the sensor is not good, the accuracy and service life of the sensor will be affected. Zhongshi Instrument Technology Co., Ltd. has high sensor accuracy, good linearity and stable performance, and will not change for decades.
2 The second is the ball screw that drives the movement of the sensor. If the screw has a gap, the test data will be tested in the future, and the maximum deformation and elongation after the test will be directly affected. At present, some of the screw machines on the market use T-shaped ordinary screw rods. In this case, the gap is relatively large, and the second is that the friction force is relatively short and the service life is short. The screw used by Zhongshi Instrument Technology Co., Ltd. is high-precision in Germany. The gap ball screw has a surface hardening hardness of HRC58-62 and a service life of several decades. And ensure that the accuracy is unchanged.
3 Again, the transmission system of the tension machine. At present, some of the tension machine transmission systems on the market use reducers, and some use ordinary belts. The main drawbacks of these two transmission methods are: the former requires regular lubrication, and the latter ensures The synchronism of the transmission does not affect the test results. The medium-strength
tensile testing machine guarantees the synchronous precision of the transmission, high transmission precision, high efficiency, stable transmission, low noise, and long service life without maintenance.
4 Again, the power source (motor) of the tension machine is also called motor. At present, some tensile machines on the market use ordinary three-phase motors or variable frequency motors. This type of motor uses analog signal control, slow control response, inaccurate positioning, and general speed regulation. The range is narrow, there is no high speed at high speed or low speed, and there is no high speed, and the speed control is not accurate. The control mode of the instrument is full digital pulse control, the speed range is wide, the control position is accurate, the response is fast, and the full scale can be guaranteed. Speed control is accurate and has a long service life of up to several decades without maintenance.
5 Finally, the measurement and control system (that is, software and hardware) of the universal testing machine tensile machine. At present, the measurement and control system of most rally machines on the market is controlled by 8-bit single-chip microcomputer, the sampling rate is low, and the anti-interference ability is poor. AD converter if the number of bits of the AD converter is also low resolution. Then the measurement will not be accurate.
