Metalliferous objects detector having a pair of angularly positi

Details Metalliferous objects detector having a pair of angularly positi Metalliferous objects detector having a pair of angularly positi

1990-02-23

1991-08-13

Strecker, Gerard R.

Electricity: measuring and testing

Of geophysical surface or subsurface in situ

For small object detection or location

324 67, G01V 311, G01V 3165

Patent

active

050399462

ABSTRACT:
The detector of the invention comprises two driving loops mounted at an angle to one another and rigidly tied to receiving loops connected to a balancer, differential amplifier and to the data inputs of electric signal compensators. The detector is equipped with a switch, providing alternate connection of a generator to one driving loop and to the control input of one compensator and the output thereof to the input of an amplifier, and then to the other driving loop and to the control input of the other compensator and its output to the input of the other amplifier. The amplifiers are connected to data processors, recorders, an OR gate, and a signalling unit.

REFERENCES:
patent: 4091322 (1978-05-01), Stankoff
patent: 4255710 (1981-03-01), Weber
Induktsionnye Kabeleiskateli, Svyaz Publishers, Moscow, 1970, pp. 75-78.
Labor Saving M-Scope Model TW-5, brochure from "The Grigsby Company, Inc.", 7-1-81.

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