Self-Excited Codirectionally Magnetically Compensated Rotating Ranging Method

Figure 2

Magnetization field ranging device and data transmission processing system. (a) The structure of the codirectional magnetic compensation self-excited rotating magnetization field guiding device. It is mainly composed of an excitation electromagnet, a compensation electromagnet, and a magnetic field sensor, in which two electromagnets are placed in the same direction and the magnetic field sensor is located at the center of the compensation electromagnet coil. (b) Self-excited codirectionally magnetically compensated rotating ranging system. The ranging system is mainly composed of self-excited codirectionally magnetically compensated rotating ranging devices, measuring circuits, cables, receiving circuits, and computer signal processing systems.

(a)

(b)