Side compression hall sensor for tension detection

Abstract

The invention discloses a side compression hall sensor for tension detection, mainly comprising a hall element and processing circuit module, a tension detection module, a power module, a magnet, an output protection circuit module and an LED display module, wherein the tension detection module is mounted on the side of a yarn reel to be detected and is used for detecting tension value of yarn andconverting it into corresponding displacement; the magnet is used for changing a distance from the hall element and processing circuit module according to the displacement; the hall element and processing circuit module is used for acquiring output differential voltage according to a detected change in magnetic field intensity, and analog voltage is output after the differential voltage is processed by a subsequent circuit; the LED display module is connected with the output end of the hall element and the processing circuit module and is used for receiving and displaying the analog voltage.The side compression hall sensor uses the hall principle to output analog voltages by changing magnet displacement according to tension magnitude to trigger changes in the magnetic field intensity.

Description

technical field [0001] The invention relates to the field of tension detection, in particular to a lateral pressure Hall sensor for tension detection. Background technique [0002] In the textile industry, the tension sensor is used to detect the tension of the yarn reel. [0003] If the tension is too small, it will easily cause the yarn to relax and wrinkle, while if it is too high, it will cause the yarn to break. Therefore, in order to improve product quality and efficiency, it is necessary to accurately detect and control the tension of the yarn online to keep the tension constant during the production and processing of the yarn. [0004] According to the working principle, the tension sensor can be divided into strain gauge type and displacement type. [0005] The strain gauge type is that the tension strain gauge and the compression strain gauge are connected together in the form of a bridge. When the external pressure is applied, the resistance value of the strain ...

AI Technical Summary

Problems solved by technology

[0006] 1. The requirements for the installation angle are high, and the output deviation is easy to exist

[0007] 2. The calibration process is complicated, the potentiometer needs to be adjusted, and the production efficiency is not high

[0008] 3. Using resistance strain gauges, the manufacturing process is complicated, and the resistance bridge is generally a ceramic substrate, which is easy to break

Images