Zero-point drift of a force sensor can be adjusted through recalibration, temperature compensation, and environmental optimization to restore its measurement accuracy.
1. Perform Zero-Point Calibration: Under no-load conditions, enter calibration mode through the instrument or control system and select the "Zero" or "Zero-Point Calibration" function.
For sensors that support automatic calibration (such as models with built-in AI modules), the "Zero-Point Calibration Mode" can be triggered, and the system will automatically collect and compensate for the zero-point offset.
For analog output sensors (such as 4-20mA), a potentiometer can be used to adjust the zero-adjustment screw, and a voltmeter can be used to adjust the output to a 0V or 4mA reference value.
2. Implement Temperature Compensation: Temperature variation is the main cause of zero-point drift. High-end sensors employ a dual-channel temperature compensation design, combining a built-in temperature probe and adaptive algorithms to control temperature drift within ±0.01%FS/℃.
A temperature compensation model can be enabled in the software, using linear or polynomial formulas to correct the output in real time.
3. Optimize the operating environment and installation conditions.
Ensure the sensor is securely installed, avoiding interference from vibration, lateral forces, or mechanical stress.
Use a regulated power supply to prevent drift caused by power fluctuations.
Maintain stable temperature and humidity in the operating environment; install a protective cover or temperature-controlled chamber if necessary.