拉力試驗機位移系統故障的處理

Tensile testing machine displacement system fault processing

*、首先檢查拉力機位移傳感器。由于拉力機位移系統采用的是三閉環控制方式；所以應該先斷開位移系統中的回路，使其成為開環系統。然后測量位移傳感器的反饋值，重復幾次以后，測量到的傳感器反饋數據為一個線性變化的直線，判定傳感器是否正常。

The first plane reservation, first check the tension sensor. Due to the tension of reservation moving system adopts three closed loop control mode; So should first disconnect displacement circuit in the system, make the open loop system. Then measured displacement sensor feedback value, after a few repetitions, the measured sensor data as a linear change of straight line, determine whether the sensor is normal.

第二、接著檢查放大器單元。如果位移傳感器沒有問題，應該重點檢查拉力機放大器單元，正常的放大器單元的輸出信號應該成線性變化趨勢。

The second, and then check the amplifier unit. If there is no problem, the displacement sensor should be focusing on tensile machine amplifier unit, normal output signal amplifier unit should be a linear trend.

第三、如果不是上述原因引起的故障，則應檢查電腦軟件設定是否正確；或者重新標定和校正位移系統。

Third, if not the causes of failure, you should check the set of computer software is correct; Or displacement of calibration and correction system.