Electro-optical effect sensing technology-based signal conversion method for wireless PT

The invention relates to the technical field of power equipment and relates to an electro-optical effect sensing technology-based signal conversion method for a wireless PT. The method comprises the following steps that: 1, the wireless PT is installed on a to-be-measured object through an insulating connecting piece, an optical fiber transmission polarizer transmits an optical wave signal generated by an LED light source into linearly polarized light; after being changed by a 1/4 wave plate, the light is converted into circularly polarized light, under the influence of an external electric field and voltage of an environment, the light penetrating through a crystal sensor undergoes a birefringence phenomenon, and a voltage value can be measured after electro-optical conversion and corresponding signal processing; and a voltage electric field sensor is designed and mainly comprises a sensing probe, a signal transmission optical fiber, a measurement connection system and the like. By means of the technical sch