When choosing a load cell, we must first consider the actual working environment. The working environment can affect whether the sensor can work normally and the service life of the sensor or even the reliability and safety of the entire scale. So what are the errors that the load cell will produce?
First, the characteristic error:
This kind of error is mainly caused by the DC drift value of the device itself, the incorrect slope or the non-linear shape of the slope. We should always hear the phrase "The ideal and the reality are very different", and the load cell is also Similarly, there is a certain gap between the characteristics of the ideal transfer function of the load cell and the true characteristics of the sensor.
Second, the application error:
This kind of error is mainly caused by the operation. The causes of this error are mainly the error caused by the sensor installation error, the incorrect operation of the sensor and the measurement site, the error in the purification process of air or other gases, and so on. .
Third, the dynamic error:
This error is mainly due to the fact that the sensor has a strong resistance under static conditions, so the response to changes in the input parameters is slow, even after a few seconds.
Fourth, environmental error:
This kind of error is because the load cell also causes errors due to external environmental factors such as temperature, wind, vibration, and altitude.