Abstract:In order to meet the demand of synchro/resolver electrical angle quantity traceability in industrial automation and defense military field, a calibration method based on multi-disk induction ratio and bridge balance principle is proposed and a calibration device is formed for synchro/resolver electrical angle. The standard values of synchro/resolver electrical angle is obtained by the quasi-voltage balance of the bridge and the unbalanced error voltage resolving method, and realizes the calibration of 0 ° ~ 360 ° electric angle in synchronous and decomposition modes through relatively simple wiring mode. The uncertainty of the electrical angle calibration device in the synchronous mode is evaluated, the uncertainty reached 0.00013°(0.47″). The method has the characteristics of high accuracy, simple operation and fast measuring speed, and the synchro/resolver electric angle value is traced to the induced voltage ratio standard.
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