Electricity: measuring and testing – Of geophysical surface or subsurface in situ – For small object detection or location
Patent
1994-06-03
1996-11-19
Snow, Walter E.
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
For small object detection or location
324239, G01V 311, G01R 3312
Patent
active
055766242
ABSTRACT:
This invention is for a pulse induction metal detector which uses combinations of the signal detected during non-transmission of the magnetic field to eliminate those contributions to the signal due to the remanent magnetization of ferrites and asynchronous magnetic fields within the target volume.
REFERENCES:
patent: 4110679 (1978-08-01), Payne
patent: 4393350 (1983-07-01), Hansen et al.
patent: 4868504 (1989-09-01), Johnson
Corbyn: "Pulse Induction Metal Detector" --Wireless World--Mar. 1980--vol. 86, No. 1531-pp. 40-44, 324/329.
BHC Consulting Pty Ltd.
Snow Walter E.
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