Dynamic high-precision steering angle measuring apparatus and a measuring method grating

Dynamic high-precision steering angle measuring apparatus and measurement method grating, to a steering angle measuring system. The present invention solves the conventional method of measuring accuracy of the rudder angle low. In combination with a holder rail is fixedly connected to the arcuate guide, stopper sleeve combination rudder surface, a clamping bracket assembly fixed to the rudder surface, the reading head is mounted on a clamping bracket assembly, scale adhered to the arcuate guide, grating center, and the center of rotation of the read head coincides with the rudder shaft. Grating and the grating signal output raster signal input grating sensor signal processing unit is connected to the control signal input terminal is connected to the signal output terminal and the grating microcontroller unit raster signal processing unit, a data storage and reading microcontroller unit data terminal and a data storage unit connected to an end of writing and reading, a control signal output coupled to the input terminal of the control signal output of the microcontroller unit input terminal of the microprocessor unit of the present invention is suitable for measuring the steering angle.