Design of Inductive Angle Encoder Based on Eddy Current Principle
Inductive angular encoders,with their non-contact working mode,have been widely applied in industrial production and other fields.However,the technological level of inductive angular encoders in China still needs to be further improved.An inductive angular encoder based on the eddy current principle which comprises a stator and a rotor is designed.By utilizing printed circuit board(PCB)technology,the excitation coils and receiving coils of the stator are printed on the same PCB,significantly reducing the encoder's volume.The rotor is formed by specifically shaped copper-clad areas printed on the PCB,with different areas defining individual sectors.Focusing on the electromagnetic coupling mechanism between the stator and rotor,the impact of rotor eddy currents on the induced voltage in the receiving coils is analyzed and a test platform for evaluation is established.The test results demonstrate that this angular encoder exhibits high measurement accuracy,promising excellent application prospects and vast market potential.
万方数据
维普
