What factors are related to the accuracy of weighing sensors?

What factors are related to the accuracy of weighing sensors?

In industrial production, weighing sensors are widely used to measure the weight of objects. However, the accuracy of the weighing sensor is an important factor in evaluating its performance. Accuracy refers to the difference between the sensor output value and the measured value, and is based on factors such as sensor reliability and stability. Therefore, this article will explore the accuracy of weighing sensors and their applications.

What is the accuracy of a weighing sensor

The accuracy of a sensor refers to the difference between its output signal and the measured value, usually expressed as a percentage, known as accuracy indication error. Accuracy indication error is divided into quantitative, percentage, and numerical indication errors. In weighing sensors, quantitative error (direct or direct error) refers to errors caused by factors such as hardware structure, material parameters, manufacturing processes, etc; Percentage error (or relative error) refers to the error in the ratio between the sensor output and the true value; Digital error refers to the accuracy error generated by digital calculations (such as AD converters).

Factors affecting the accuracy of weighing sensors

Mechanical misalignment: Mechanical misalignment is a common cause of decreased sensor accuracy during sensor operation. The causes of mechanical misalignment include physical deformation, structural corrosion, and failure to install standards.

Signal processing error: Signal noise levels that are too high or too low can affect the output of the sensor. The causes of such errors include small design scale, loss or poor quality of signal processing circuits, etc.

Environmental factors: Weighing sensors are applied in different environmental conditions, and different environmental conditions will have an impact on the performance of weighing sensors. Such as temperature changes, working life, usage environment, etc.

Improvement of Accuracy of Weighing Sensors

Choosing the appropriate sensor: Firstly, the appropriate weighing sensor model should be selected based on the actual application scenario to obtain more accurate weight measurement results.

Carefully select the application environment: When installing and applying weighing sensors, attention should be paid to various environmental factors such as temperature and mechanical wear, which can affect the accuracy of the weighing sensor. Some standardized and reasonable usage ranges should be followed, such as avoiding environments with too high or too low temperatures.

Instrument calibration: Proper calibration can effectively improve the accuracy of weighing sensors. Calibration ensures the response characteristics, sensitivity, and stability of sensors. Laboratory calibration is to provide accurate measurement results of weighing sensor accuracy and improve the reliability of weighing sensor calibration.

Conclusion

The accuracy of a weighing sensor is a significant parameter for measuring the accuracy of its device. A series of measures such as enhancing the stability of instruments, reducing equipment vibration, and improving environmental conditions can all improve the accuracy of weighing sensors. Calibration and other operations can also ensure the continuous and accurate operation of the weighing sensor.