What Are The Performance Indicators Of The Pillow Tension Sensor?

The pillow type tension sensor is still unfamiliar to everyone. This is because there are many types of tension sensors. As far as I know, there are pillow-type tension sensors and bearing-type tension sensors. In fact, the tension sensor is far more than this. With the continuous development of comprehensive science and technology, there will be more and more types of tension sensors. The following is a brief description of the lower pillow tension sensor to combat.

The selection of sensors should generally be based on overall considerations, comprehensive and comprehensive consideration of economic factors and reasonable selection of sensors based on the intent of the test or control, the operating environment, the target to be measured, the allowed measurement errors, and signal processing. In terms of performance, pillow-type tension sensors generally require large output signals. Proportional to the input signal, small hysteresis and non-linear errors, small internal noise, not easily affected by external disturbances, fast response speed, low action energy, small impact on the measured condition, long service life, stable and reliable operation, low cost , Easy to operate, use, repair and calibration due to many factors affecting each other and restricting each other. Therefore, we must comprehensively consider and put forward reasonable requirements. For example, the sensitivity is high, the change t that the sensor can sense is small, and only a small change is needed to be measured, and the sensor has a large output. This is advantageous for ensuring measurement accuracy. But it should also be noted. To ensure measurement accuracy, the sensor must operate in the unsaturated region and linear section, and too high sensitivity will affect its applicable measurement scale. As the sensitivity is higher, the disturbance signal that is not related to the lateral bone signal is more likely to be mixed in, and the disturbance signal will be enlarged by the expansion system, which will affect the measurement accuracy. Under normal circumstances, the higher the accuracy of the pillow tension sensor, the more expensive it is, and the more difficult it is to maintain. Therefore, do not choose a high-precision, high-sensitivity sensor at will on the premise of ensuring measurement accuracy.
After the above analysis, you need to buy pillow tension sensors according to your actual needs. Do not buy blindly. This will only increase the cost. In the later maintenance, you will also invest a lot of labor costs, which will only bring More losses.

Because there are many types of sensors, and their use requirements are also very different, it is extremely difficult to list unified indicators that can be used to comprehensively measure the quality of pillow-type tension sensors. The performance indicators of each sensor are also very different. If you want to know more about the pillow tension sensor, please continue to review the next analysis of the editor, the editor will explain the performance index analysis of the pillow tension sensor.

The performance indicators of the pillow tension sensor can be divided into the following four aspects:
Sensitivity: refers to the voltage signal output value u that can be obtained by inputting x to the unit oscillation amount along the measurement axis direction of the pillow tension sensor, that is, s = u / x. An index value related to sensitivity is resolution, which refers to the smallest change of the mechanical oscillation input change amount △ x that can be added to the output voltage change amount Δu. In order to measure small changes in oscillation, the sensor should have high sensitivity.
Use frequency scale: refers to the frequency range where the magnitude of sensitivity changes with frequency does not exceed the given error. Its two ends are the lower frequency limit and the upper frequency limit, respectively. In order to measure static mechanical quantities, pillow-type tension sensors should have zero frequency response characteristics. The frequency scale of the sensor is not only related to the frequency response characteristics of the sensor itself, but also to the conditions of the sensor device (mainly affecting the upper frequency limit).
Dynamic scale: The dynamic scale is the measurement range, which refers to the amplitude scale of the input mechanical quantity that the sensitivity changes with the amplitude value without exceeding the given error limit. In this scale, the output voltage is proportional to the mechanical input, so it is also called a linear scale. The dynamic scale is generally not expressed in numerical values, but in decibels. This is because the measured vibration value changes too much. It is more convenient to use the decibel level.
Phase shift: refers to the phase lag of the output frequency signal with respect to the input when the input is simply oscillating. The existence of phase shift may cause the output composition waveform to change ruggedly. In order to prevent the output distortion, the phase shift value is required to be zero or Π, or to change in proportion to the frequency.
The above is the performance index of the pillow tension sensor analyzed by Xiaobian. It mainly analyzes the sensitivity of the pillow tension sensor, the use of frequency scale, dynamic scale, and phase shift. I hope it can help everyone's understanding. Suzhou Aifamaisi Electromechanical Technology Co., Ltd. is the general agent of Swiss FMS tension sensor. The products include bearing tension sensor, coating machine tension control, FMS tension controller, etc. Product quality assurance and price concessions are welcome. order!