Compensation of Angle Measurement Error Caused by Torque Measurement Process Based on PCSF Algorithm
The phenomenon and law of instrument deformation caused by measuring torque and angle measurement error are studied based on the structure of high precision detector for vertical barrel type precision reducer.A three-combination calibration method of torque,stiff-ness,and angle is proposed,and the instrument stiffness online calibration device based on the change of loading torque is designed.The real-time special compensation for angle measurement error caused by instrument stiffness is realized based on the PCSF algorithm.The problem that change of load's measuring torque affects the instrument's angle measurement accuracy is solved.The experimental results show that the angle measurement error caused by the torque change after compensation is within±2 angular seconds.
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