Non-invasive initiation detonation sensor

Details Non-invasive initiation detonation sensor Non-invasive initiation detonation sensor

2006-10-02

2008-12-30

Epps, Georgia Y (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

Reexamination Certificate

active

07470883

ABSTRACT:
The present invention is directed to an apparatus and method of use for detecting the explosive detonation. The apparatus has a plurality of sensors consecutively arranged and spaced apart wherein each pair of consecutive light sensors defines a sensor pair. The sensors are sequentially activated by light produced by the detonation of explosive detonation and are inactivated by the absence of light. The sensors provide data that represents the amount of time that elapses between activation of a first light sensor in a sensor pair and activation of a second light sensor in the sensor pair and the length of time in which each sensor is activated. The data is processed to determine detonation velocity values and chemical reaction time values associated with material detonation and to provide an output signal that indicates whether the determined detonation velocity values and chemical reaction time values are valid.

REFERENCES:
patent: 4199682 (1980-04-01), Spector et al.
patent: 4718497 (1988-01-01), Moore et al.
patent: 6034365 (2000-03-01), Levin

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