Passive resonance voltage transformation type position sensor

The invention relates to a passive resonance voltage transformation type position sensor. The sensor comprises an antenna PCB, a target PCB, a processing circuit, an input port and an output port. Wherein the target PCB comprises a first copper-clad plate, a first rectangular copper foil target coil, a first external resistor and an external inductor, and the antenna PCB comprises a second copper-clad plate, a second rectangular copper foil excitation coil, a multi-cycle sine/cosine copper foil receiving coil, a single-cycle sine/cosine copper foil receiving coil and a second external resistor; the receiving coil induces a voltage signal, the output port is used for outputting the voltage signal of the receiving coil, and the input port is used for inputting an excitation signal to the antenna PCB; the target PCB is connected with a measured object which does linear motion; and a gap is formed between the target PCB and the antenna PCB and the target PCB and the antenna PCB are not contacted. Compared with th