Method and apparatus for detecting fire, explosion, and/or proje

Details Method and apparatus for detecting fire, explosion, and/or proje Method and apparatus for detecting fire, explosion, and/or proje

1991-07-15

1992-06-23

Hellner, Mark

Communications: directive radio wave systems and devices (e.g.,

With particular circuit

Spectrum analysis

342 22, G01S 1350

Patent

active

051247097

ABSTRACT:
A method and apparatus for detecting the occurrence of a fire or an explosion in a monitored space, or the penetration of a projectile through a barrier, by: transmitting to the monitored space an electromagnetic signal of at least one radio frequency; receiving the transmitted signal as scattered by the monitored space; and analyzing at least one parameter of the received signal to produce an indication whether a fire or explosion has occurred, or a projectile has penetrated through a barrier, in the monitored space.

REFERENCES:
patent: 4484193 (1984-11-01), Bellew
patent: 4554546 (1985-11-01), Herbreteau et al.
patent: 4864307 (1989-09-01), Potage et al.

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