A method for detecting the function of a resolver bridge

Abstract

The invention discloses a method for detecting the function of a resolver bridge, which uses a transformer to connect the high and low ends of an isolated sinusoidal signal of a certain frequency to the input end of a resolver bridge to simulate 0°, 45°, 90°, Sine and cosine input signals of 135°, 180°, 225°, 270°, and 315° characteristic angles, measure the angle display value of the resolver bridge after balancing, calculate the difference between the resolver bridge display angle value and the simulated characteristic angle, and evaluate Whether the measurement accuracy of the resolver bridge meets the requirements for use. The present invention is a simple and effective function detection method for high-precision rotary transformer bridge lack of higher-precision sine-cosine signal simulator calibration, and other rotary transformer electrical precision measuring instruments can also be used for period check or fault analysis. method.

Description

technical field [0001] The invention relates to a method for detecting the function of a resolver bridge, in particular to a method for measuring characteristic angles. Background technique [0002] The resolver bridge is the main equipment used to measure the electrical error of the sine-cosine resolver. Usually, the precision measurement of the resolver bridge is to use the sine-cosine resolver simulator to simulate the sine and cosine output signals of the sine-cosine resolver. When the precision of the sine and cosine output signal of the simulator is not lower than 1 / 3 of the precision of the resolver bridge, it can be used to detect the precision of the resolver bridge. When the accuracy of the simulator is lower than or equal to the accuracy of the resolver bridge, it cannot be used to check the accuracy of the resolver bridge. The 540 / 10 resolver bridge produced by the North Atlantic Company of the United States has an accuracy of 2", which is the highest precision ...

AI Technical Summary

Problems solved by technology

The accuracy of the 5300 emulator produced by the company is also 2″. It is generally used to measure the accuracy of the analog-to-digital conversion circuit of the sine-cosine resolver. It cannot be used as an accuracy measurement device for the 540 / 10 resolver bridge. Therefore, the 540 / 10 resolver bridge There is no solution for precision measurement in China

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