Air-coupled seismic detector

Details Air-coupled seismic detector Air-coupled seismic detector

1976-02-25

1978-11-21

Birmiel, Howard A.

Acoustics

Geophysical or subsurface exploration

Seismic source and detector

181122, 181401, 73627, 340 155R, G01V 116

Patent

active

041262034

ABSTRACT:
A method and apparatus for improved detection of reflected seismic energy through detection of air pressure variations in air above an air/earth surface interface. One form of apparatus suitable for detection in air of seismic energy waves emanating from beneath the earth surface consists of supporting a collecting reflecting member over a designated earth surface site and detecting air pressure variations at a focal point within the reflector member; and, thereafter, transmitting or conducting the reflected seismic energy indications for processing in accordance with the seismic energy source requirements to obtain seismic energy reflection data for the particular locale.

REFERENCES:
patent: 3430233 (1969-02-01), Christensson
patent: 3514749 (1970-05-01), Padberg, Jr.
patent: 3564493 (1971-02-01), Hicklin
patent: 3934219 (1976-01-01), Monaghan
"Airblast waves from contained underground explosions," Reed, Sandia Laboratories Research Report, Dec. 1971.
"Acoustic calculation of ground-induced-schock air blast," Cole, Jr., Sandia Laboratories Research Report, Nov. 1970.

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