Apparatus for locating failures in detonation devices

Details Apparatus for locating failures in detonation devices Apparatus for locating failures in detonation devices

1996-02-27

1998-02-24

Karlsen, Ernest F.

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

In an ignitor or detonator

102217, G01R 3100

Patent

active

057214930

ABSTRACT:
A method is provided for locating failures in a sequentially arranged chain of detonation devices. The method comprises initiating a test signal and passing this signal sequentially along the chain from each correctly operating detonation device to the next after a predetermined delay at each device; monitoring the chain of detonation devices by receiving a confirmation signal from each correctly operating device which has received the test signal; and ascertaining the last device to have received the test signal by a cumulative count of the number of detonation devices which have received the test signal.

REFERENCES:
patent: 2976485 (1961-03-01), Bartz
patent: 5014622 (1991-05-01), Jullian
patent: 5406890 (1995-04-01), Marsh et al.
patent: 5520114 (1996-05-01), Guimard et al.

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