How to choose the accuracy of load cell?

The accuracy selection of load cell is a complex and critical process, which is directly related to the accuracy and reliability of measurement results. The following are some suggestions on how to choose the accuracy of load cell:

Clear application scenarios: First of all, it is necessary to clear what scenarios the load cell will be applied to, such as industrial automation, intelligent manufacturing, medical equipment, etc. Different application scenarios require different measurement accuracy.

Determine the measurement requirements: according to the application scenario, determine the required measurement range, measurement accuracy, resolution and other parameters. These parameters are the basis of selecting load cell.

Consider environmental factors: environmental temperature, humidity, vibration and other factors may affect the accuracy of the load cell. Therefore, these factors need to be considered in the selection, and sensors with corresponding anti-interference ability should be selected.

Understand the performance indicators of the sensor: the performance indicators of the sensor include linearity, hysteresis, repeatability, creep, sensitivity and temperature influence. These indexes together determine the comprehensive accuracy of the sensor.

Choose the precision grade of joint, the requirements of root excavation measurement and neck calculation. The error norm of general precision is within 0.5%, that of high precision is within 0.1%, that of ultra-high precision is within 0.05%, and that of extremely high performance is within 0.01%.

Consider the cost factor: High-precision load cells are usually expensive. Therefore, on the premise of meeting the measurement requirements, we should try to choose sensors with high cost performance.

Consulting suppliers or manufacturers: When selecting load cells, you can consult suppliers or manufacturers to understand their product characteristics, performance indicators and applicable scenarios, so as to make a more suitable choice.

Actual test: If conditions permit, the selected load cell can be tested in the actual use environment to verify whether its accuracy meets the requirements.

To sum up, the application scenario, measurement requirements, environmental factors, sensor performance indicators, cost factors and suggestions from suppliers or manufacturers need to be comprehensively considered when selecting the accuracy of load cells. Through reasonable selection and testing, the load cells can be ensured to meet the requirements of practical applications.