Design and Research of National Produced Signal Decoder of Rotary Transformer
By studying the decoding principle of the rotary transformer,a design scheme for a rotary transformer decoder based on nationally produced components was proposed.The RDC chip and DAC chip interface circuit were designed,and the chip configuration and data reading were carried out through the MCU main control.The screw pitch angle position signal collected by the rotary transformer can be converted into a 4～20mA current signal or serial bus signal and transmitted to the control system,solving the problem of non coincidence between electrical and mechanical zero points and meeting the high-precision requirements for angle feedback in the variable pitch control process.
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