Magnet detecting device

Abstract

Abstract PURPOSE:To detect the position and depth of a buried magnet, by using plural pieces of magnetic sensors arranged accurately. CONSTITUTION:The magnetic lines of force 2 are generated from a buried permanent magnet 1. On the other hand, the relative position relation is set for the magnetic sensors S1-S4 with space (a) and (b) secured. Then these seonsors are shifted on the ground surface to detect the magnetic field. When the sensors S2 and S4 come to the position right above the magnet 1, the output of the differential amplifier 13 is 0 to be displayed on the display device 18 by the output of the comparator 16. After this, an arithmetic process 15 is given to the outputs of sensors S1 and S2 via amplifiers 11 and 12. Then the distance to the magnet 1 is displayed on the display device 17.

Inventors

• 👤 Hisayoshi Ueno

Bibliographic Details