Key testing machine from the laboratory environment to move to the production line to use, changes in the environment and changes in the frequency of use of course, the technical requirements of the testing machine has too much. Specifically need to key test machine of the following three aspects of improvement to meet the test machine production line requirements: the first is with the changes in the environment, the key test machine needs to improve the anti-interference ability. The second is the test speed needs to be improved. Manufacturers use automated testing on the test speed needs to be faster in order to produce more efficiency. The third is that the test machine will generally use to the sensor, especially the mechanics of the mechanical test machine mechanical sensor is more fragile parts. The technical requirements of the key test machine and special