Electricity: measuring and testing – Of geophysical surface or subsurface in situ – With radiant energy or nonconductive-type transmitter
Patent
1979-07-02
1981-12-29
Strecker, Gerard R.
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
With radiant energy or nonconductive-type transmitter
324338, G01V 312, G01V 330
Patent
active
043084990
ABSTRACT:
The locations of compositional discontinuities in salt deposits and the like are determined by measuring the travel time of electromagnetic waves reflected off of boundary surfaces between underground geological regions of differing mineralogical characteristics. A spark transmitter is used to generate pulses each composed of a plurality of cycles of electromagnetic waves. The electromagnetic waves have a frequency between 1 and 500 MHz. The pulses have a pulse duration of 0.1 to 1 microsecond and a pulse repetition frequency of 10 to 1000 Hz. The thusly generated pulses of electromagnetic waves are radiated into the solid body of a mountain or other geological structure from within the interior of an underground excavation, so that the transmitted radiation will be reflected back from one or more boundary surfaces with different respective travel times. The reflected-back radiation is received and recorded. The travel times are measured, in order to determine the locations of the boundary surfaces.
REFERENCES:
patent: 333469 (1943-05-01), Martienssen
patent: 2077707 (1937-04-01), Melton
patent: 2657380 (1953-10-01), Donaldson
patent: 2660703 (1953-11-01), Herbold
patent: 3270276 (1966-08-01), Donaldson
patent: 3286163 (1966-11-01), Holser et al.
patent: 3350634 (1967-10-01), Hoehn
patent: 3440523 (1969-04-01), Gabillard
patent: 3806795 (1974-04-01), Morey
Terman, Frederick, Radio Aids to Navigation and Radar; Radio Engineering; McGraw-Hill, 3rd Ed., 1947, Sec. 16-1, Chap. 16, pp. 783-784.
Mayrhofer Heimo
Thierbach Rudolph
Kali und Salz A.G.
Strecker Gerard R.
Striker Michael J.
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