1. Calibration Parameters Specification
| Parameter Category | Calibration Method | Tolerance Range | Reference Equipment |
|---|---|---|---|
| Temperature System | Multi-point verification with standard thermocouples | ±1°C (steady-state) | Class II platinum resistance thermometer |
| Fluctuation ≤0.5°C/30min | Infrared thermal imager | ||
| Torque System | Lever-type standard torque generator | Error ≤0.5% FS | Torque calibration device |
| Clamping Force System | Strain-gauge pressure sensor calibration | Linearity deviation ±0.5kN | Digital pressure calibrator |
2. Step-by-Step Calibration Workflow
2.1 Temperature System
- Thermal Equilibrium: Stabilize at 180°C±2°C for 30min (fluctuation ≤0.3°C)
- Spatial Uniformity: 9-point test matrix (3 layers × 3 points) recording max-min difference
- System Adjustment: Compensate deviations via PID tuning
2.2 Torque System
- Zeroing Procedure: Auto-zero at 23±5°C (ambient)
- Range Verification: Apply 20%/50%/100% full-scale torque for linearity test
2.3 Clamping Force System
- Static Calibration: Step-loading from 5-20kN
- Dynamic Test: 10 consecutive cycles for repeatability verification
