The sensitivity of the torque sensor is specific. When the precise measurement is a one-sided quantity, and its specificity is higher, you should choose another torque sensor with less directional sensitivity. If it is accurately measured, it is more Hierarchical space vector requires that the cross-type sensitivity of the torque sensor is as low as possible. The characteristics of making a torque sensor should take into account the application requirements.
Torque sensor is one of the indispensable basic electronic components in the industrial automation manufacturing industry. The promotion and improvement of its characteristics is the top priority for most people. Whether the duality of the product can take into account the consumer’s regulations, this has long become a research topic that must be solved by most torque sensor manufacturers. Because the torque sensors currently on the market at this stage are different in structure and basic principles. How to select a torque sensor reasonably according to the specific precise measurement purpose, the overall goal of precise measurement, and the precise measurement of the geographical environment is the first difficulty to be solved when performing a certain amount of precise measurement. When the torque sensor is established, the precise measurement method and precise measurement mechanical equipment that match it can also be established. The success or failure of accurate measurement results depends on the selection of the torque sensor to a great extent. Generally speaking, the torque sensor must have the following six specifications.
1: Establish the type of torque sensor based on the overall goal of accurate measurement and accurate measurement of the geographical environment
To carry out a specific and accurate measurement work, at the very beginning, we must fully consider which basic principle of the torque sensor is used. This can only be established after analyzing the factors in various fields. Because even if it is to accurately measure the same scalar, there are a variety of basic principles of torque sensors to choose from. Which basic principle of torque sensor is more suitable must be based on the characteristics of the accurate measurement and the application specifications of the torque sensor. Fully consider the following specific difficulties: ①The specifications of the detection range ②The requirement of the measured position on the capacity of the torque sensor ③Whether the measurement method is capacitive grid or non-contact ④The method of signal introduction, the cable TV should be touched and accurately measured ⑤The torque sensor is imported from China, and whether the price can be accepted or not, it still needs independent research and development.
2: Choice of recording sensitivity
Generally, within the linear range of the torque sensor, it is hoped that the sensitivity of the torque sensor is as high as possible, because only when the sensitivity is high, the value of the output signal corresponding to the accurately measured change will be larger, which is beneficial to digital signal processing. . But it should be noted that the sensitivity of the torsion sensor is high, and the external noise that is not important to the accurate measurement can easily penetrate, and it will be enlarged by the system, which will damage the measurement accuracy. Therefore, it is required that the torque sensor itself should have high frequency stability and minimize the interference signal introduced from the outside.
The sensitivity of the torque sensor is specific. When the precise measurement is a one-sided quantity, and its specificity is higher, you should choose another torque sensor with a small sensitivity in the direction. Hierarchical space vector requires that the cross-type sensitivity of the torque sensor is as low as possible.
3: Phase frequency characteristics
The phase-frequency characteristic management of the torque sensor determines the frequency range to be accurately measured. Try to maintain accurate measurement specifications within the allowable frequency range. In fact, the response of the torque sensor will have a certain time delay. I hope that the lower the delay time, the better good.
The phase-frequency characteristic of the torque sensor is high, and the signal frequency range that can be measured is wide. Due to the damage of the structural characteristics, the inertial moment of the mechanical system is very large, and the frequency of the measurable signal is low due to the low frequency torque sensor.
In the dynamic precision measurement, the response characteristics should be based on the characteristics of the signal (stable, transient, random, etc.) to prevent excessive errors.