Underground pipe detector

Details Underground pipe detector Underground pipe detector

1974-01-30

1976-06-29

Hubler, Malcolm F.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

324 3, G01S 902, G01V 312

Patent

active

039672824

ABSTRACT:
An apparatus and method wherein an electrical impulse source transmits a radar-type signal through an antenna into the ground and is reflected by a target. The reflected signal or echo is detected by the antenna and an analog-to-digital converter converts it to a digital form which may be readily operated on, stored and recalled. A memory stores the information until recalled for comparison with a subsequent signal. A processing means compares the stored and subsequent signal to give an indication of the location of metallic and non-metallic buried targets.

REFERENCES:
patent: 2283897 (1942-05-01), Alford
patent: 2557994 (1951-06-01), Ostlund
patent: 2999979 (1961-09-01), Woll
patent: 3193797 (1965-07-01), Lindsey et al.
patent: 3340499 (1967-09-01), Hadley
patent: 3392384 (1968-07-01), Wesch
patent: 3737768 (1973-06-01), Lazenby et al.
patent: R17844 (1930-10-01), Chapman

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