Patent ID: 11965757
Assignee: GUILIN GUANGLU MEASURING INSTRUMENT CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 1:
2. The hybrid positioning electromagnetic induction displacement sensor according to claim 1, wherein each transmitter winding respectively encircles two three-phase receiver windings with different pitches by using two approximately closed coils in the same direction in series; all excitation coils are in the shape of a short-circuit loop; each phase receiver winding consists of M, which is at least 2, sub-windings of a same structure that are phase-shifted in space by 60°/M, connected in series to form a distributed winding, each sub-winding forming the distributed winding may be a distributed winding; each time measuring, in parallel, a spatial phase or displacement of a measured position in two different pitches encircled by the same transmitter winding; after measuring the spatial phase or displacement of the measured position in a required different pitches, the microcontroller (13) de-asserts the measurement unit from running, and calculates a measured displacement by using a hybrid positioning or absolute positioning algorithm.