Electricity: measuring and testing – Of geophysical surface or subsurface in situ – For small object detection or location
Patent
1987-02-09
1989-09-19
Strecker, Gerard R.
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
For small object detection or location
307138, 324239, 324334, 361156, G01V 310, G01V 3165
Patent
active
048685046
ABSTRACT:
Eddy current type metal detector for locating and distinguishing between different classes of metal objects, and geophysical apparatus for measuring various properties of soil and rock. A nonsinusoidal transmit voltage energizes a transmit coil which transmits a nonsinusoidal alternating magnetic field into the soil, rocks or metal objects to be located. Distortion of the magnetic field caused by the presence of these materials in the field induces corresponding voltage waveforms in a receive coil. The induced waveform is analyzed in order to deduce certain electrical properties of the materials, or in order to distinguish buried metal objects from the soil in which they are buried. The circuit which energizes the transmit coil returns energy from the collapse of the magnetic field to the power supply, minimizing the power consumption of the apparatus.
REFERENCES:
patent: 3020471 (1962-02-01), Barringer
patent: 3315155 (1967-04-01), Colani
patent: 3317744 (1967-05-01), Geleynse
patent: 3958160 (1976-05-01), de Niet et al.
patent: 4157579 (1979-06-01), Paul
patent: 4170037 (1979-10-01), Kimmel
patent: 4209711 (1980-06-01), Baker
patent: 4276484 (1981-06-01), Riveros
patent: 4410926 (1983-10-01), Hafner et al.
patent: 4454558 (1984-06-01), Huddart
patent: 4535292 (1985-08-01), Ensing
Corbyn, J. A., Pulse Induction Metal Detector, Wireless World (Mar. 1980), vol. 86, No. 1531, pp. 40-44.
"Power MOSFET Application and Product Data", Hexfet Databook 1985 Third Edition, published by International Rectifier, pp. A-1, A-66, A-67.
FLR, Inc.
Strecker Gerard R.
LandOfFree
Apparatus and method for locating metal objects and minerals in does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for locating metal objects and minerals in , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for locating metal objects and minerals in will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-370940