Method and apparatus for seismic tornado detection

Details Method and apparatus for seismic tornado detection Method and apparatus for seismic tornado detection

1997-01-08

1998-09-01

Hofsass, Jeffery

Communications: electrical

Condition responsive indicating system

Specific condition

340601, 7317016, 7317024, 73DIG1, 33 1HH, G08B 2100

Patent

active

058016368

ABSTRACT:
A tornado warning system having means for monitoring seismic waves of a predetermined frequency range including long-period seismic waves and short-period seismic waves. The seismic waves are associated with and produced in the ground as a result of an approaching tornado. The warning system comprises means for detecting the seismic waves including the long-period seismic waves and the short-period seismic waves and for providing an electrical output indicative thereof. Circuit means are provided for processing the electrical output to provide an output signal indicative of the long-period seismic waves and the short-period seismic waves. Alarm means are provided for receiving the output signal from the circuit means to generate an alarm to warn of the presence of a tornado.

REFERENCES:
patent: 4300135 (1981-11-01), Korn et al.
patent: 4689997 (1987-09-01), Windisch
patent: 5101195 (1992-03-01), Caillat et al.
patent: 5379025 (1995-01-01), Tatom et al.
patent: 5625348 (1997-04-01), Farnsworth et al.

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