Method for testing metal detectors

Details Method for testing metal detectors Method for testing metal detectors

1978-08-07

1981-09-08

Strecker, Gerard R.

Electricity: measuring and testing

Of geophysical surface or subsurface in situ

For small object detection or location

324202, 455226, G01V 312, G01R 3500

Patent

active

042887488

ABSTRACT:
An apparatus and method for testing low-power, low-band radio frequency metal detectors of the type employing a radio transmitter alone or a transmitter and a receiver. The apparatus is characterized by a variable voltage power supply, a transmitter, an antenna, a voltmeter, a rectifier connected to the voltmeter, a switch for connecting the rectifier to either the antenna or the power supply and for selectively energizing the transmitter, and a surface placed in a fixed position relative to the antenna and defining the proper position for placement of the equipment under test.

REFERENCES:
patent: 2079205 (1937-05-01), Gillett
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patent: 3009057 (1961-11-01), Glaser
patent: 3461385 (1969-08-01), Bayer
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patent: 3737782 (1973-06-01), Pierce
patent: 3826976 (1974-07-01), Winston et al.
patent: 3970940 (1976-07-01), Venn
patent: 4048564 (1977-09-01), Gleeson

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