The sensor is an important part of the electronic tensile testing machine . Accurate testing of tensile, bending, compression and shearing of metal and non-metallic materials is inseparable from sensor support. The principle and structure of the test machine sensor will have a great impact on the test results of the test machine, which directly affects the test results of the test machine. During the actual use of the test machine, it is impossible to test separately from the test machine sensor. There are many types of testing machine sensors on the market, and there are great differences between products.
So, what do we need to pay attention to when choosing a test machine sensor? What features does it need to have?
1, the accuracy of the sensor
Accuracy is an important performance indicator for electronic tensile testing machine sensors, which is directly related to the accuracy of the test results. In general, the higher the accuracy of the tester sensor, the more expensive it is. Therefore, when the customer selects the tester sensor, it is necessary to meet the accuracy requirements of the measurement system according to the actual situation.
2, the frequency characteristics of the sensor
The frequency characteristics of the electronic tensile machine sensor directly determine the frequency range of the material being measured. It is necessary to adhere to the distortion within a permissible frequency range to meet the requirements. In fact, the response of the test machine sensor will have a certain delay, in short, the shorter the delay time, the better.
3, the linear range of the sensor
The linear range refers to the range in which the output is proportional to the input. In theory, the linear range of the tester sensor is relatively stable. The wider the linear range of the tester sensor, the larger the range and the accuracy of the measurement. However, it is impossible to guarantee the absolute linearity of any test machine sensor. When the required measurement accuracy is low, the test machine sensor with less nonlinear error can be approximated as linear, which brings great measurement. Bento.
4, the stability of the sensor
If a tensile tester sensor is still able to maintain its constant performance after a period of use, its stability is good. In general, there are two main factors affecting the long-term stability of the test machine sensor: one is its own structure; the other is the working environment of the test machine sensor. Therefore, the test machine sensor should have strong environmental adaptability.
Sensor flexibility.
In the linear range of the electronic tensile testing machine sensor, it is hoped that the higher the flexibility of the tensile testing machine sensor, the better. Because the higher the flexibility, the larger the value of the output signal corresponding to the measured change, which is advantageous for signal processing. At the same time, we must also pay attention to the higher the flexibility of the tensile testing machine sensor and the greater the influence of external noise. Therefore, when selecting the tensile testing machine sensor, it should ensure the compatibility between flexibility and external interference.
After the above analysis, the selection of the appropriate sensor is very important for the tensile testing machine. Before the selection, it must be carefully reconnaissance and screening, so that the electronic tensile testing machine can achieve the purpose of the test.
Fresh Cut Shredded Auricularia auricula
Fresh Cut Shredded Auricularia Auricula,Shredded Auricularia Auricula,Dried Wood Ear Shreds,Jelly Ear
Guangyun Agricultural Biotechnology (Jiangsu) Co., Ltd , https://www.7-mushrooms.com