Reasons and solutions for the error of the load cell to the measured object
A load cell is actually a device that converts a mass signal into a measurable electrical output. When using a sensor, we must first consider the actual working environment of the sensor, which is very important for the correct selection of load cells. It is related to whether the sensor can work normally, its safety and service life, and even the reliability and safety of the entire weighing instrument.
Force sensors are widely used in our industry. Therefore, we must have a certain understanding of the use of force sensors, so that the problems we encounter in our work can be quickly solved and our work efficiency can be improved. , the following Changqing Xiaobian will introduce to you the reasons and solutions for the error of the load cell to the measured object.
After the load cell is subjected to external force, the strain gauge attached to the elastic body will deform and cause resistance change. The resistance change makes the formed Wheatstone bridge out of balance and outputs an electrical signal that is linearly proportional to the external force. It sounds relatively simple, but this is a very complicated work process. Especially when faced with the error of the measured object, the load cell is trying to find a solution.
The frequency response characteristics of the sensor determine the frequency range to be measured, and the measurement conditions must be maintained without distortion within the allowable frequency range. In fact, the response of the sensor always has a certain delay, and it is hoped that the shorter the delay time, the better. The frequency response of the sensor is high, the frequency range of the measurable signal is wide, and due to the influence of the structural
characteristics, the inertia of the mechanical system is large, and the frequency of the measurable signal of the sensor with low frequency is low. In dynamic measurement, the response characteristics should be based on the characteristics o
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