Sensor testing machine for metal and non-metal materials, such as tensile, bending, compression and shear accurate testing, testing machine sensor principle and structure of measurement results for the testing machine can produce very big effect. In the process of testing machine's actual use, can't be separated from the sensor tester used alone test. There are many different kinds of testing machine of sensors on the market at present, the difference between the product is very big. What are the requirements for the performance of the sensor then testing machine?

1, the precision of sensor is an important performance index is testing machine, it is directly related to the accuracy of test results. In general, the higher the accuracy of the testing machine sensor its price is more expensive. So, customers when selecting a sensor tester, must according to the actual situation, the sensor precision can satisfy the precision of the measurement system request.

2, frequency characteristic tester sensor directly determines the frequency range of material is measured. Required in a allows insist on not distortion frequency range to meet the requirements. The response of the sensor will actually testing machine, to a certain extent in short delay time as short as possible.

3, linear range refers to the output is proportional to the input range. In theory, testing machine sensor linear range is relatively stable. Tester sensor linear range is wide, its range is larger, and can ensure the measurement accuracy. But any machine sensor is impossible to guarantee its absolute linear, when the requested measurement accuracy is low, small machine sensor nonlinear error can be approximately as a linear, this brings to the measurement of the great lunch.

4, if a tester sensors in use after period of time, still can ensure the performance of its constant, so its stability is good. In general, the factors influencing the long-term stability testing machine sensor mainly has two aspects: one is its own structure; Second, testing machine sensor's working environment. So, testing machine sensor has strong environment adaptability.

5, within the scope of linear sensor in testing machine, everyone wants to machine sensor of flexibility, the higher the better. Because the higher flexibility, and the measurement of changes in the corresponding value of the output signal is, the greater the like this is advantageous to the signal processing. At the same time we also have to note that the testing machine sensor of flexibility is higher, is affected by the outside noise. So when selecting a sensor tester, shall guarantee the flexibility and compatibility, resistance to interference problem.