关键词: 同步分解, 电角度, 感应比例, 校准装置, 测量不确定度

Abstract: Synchro/resolver electrical angle is a group of special AC electrical signals characterizing angle, output by synchro/resolver electrical angle sensor (motor). This paper introduces a device and approach to calibrate synchro/resolver electrical angle based on multiple-disk induction ratio. The reference quantity value of synchro/resolver electrical angle can be obtained by quasi-voltage balance and error voltage calculation method. With different connection modes, we realized the calibration for electrical angle ranging from 0°to 360° under synchronous and resolver condition, and the evaluation for the uncertainty of calibration device in synchronous mode. This approach features high accuracy, convenient operation, and fast-speed measurement, ensuring the traceability of synchro/resolver electric angle to reach the standard of induction voltage ratio. The calibration device meets the quantity traceability requirement of synchro/resolver electric angle in industrial automation and national defense field.

Key words: Synchro/resolver, Electrical angle, Induction ratio, Calibration device, Measurement uncertainty