Testing device for and method of testing a squib of an electro b

Details Testing device for and method of testing a squib of an electro b Testing device for and method of testing a squib of an electro b

1995-11-06

1998-10-20

Swarthout, Brent A.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

280734, 280735, 340436, B60Q 100

Patent

active

058252827

ABSTRACT:
A testing device for testing the continuity of a firing circuit for a squib of an electro-ballistic system which includes a propellant and a plurality of spaced pin-like detonator wires embedded in the propellant. Each of the detonator wires has a first end positioned outside the propellant and a spaced opposite second end embedded in the propellant. Low resistance bridge detonating wires are embedded in the propellant, and electrically connect the second ends of selected ones of the detonator wires. The testing device is embedded in the propellant in spaced relation with the detonator wires and tests the continuity of the firing circuit for the squib. The testing device includes a pair of spaced pin-like test wires embedded in the propellant, with each test wire having a first end outside the propellant and a spaced opposite second end embedded in the propellant. A low-resistance bridge test wire is embedded in the propellant and electrically connects the second ends of the test wires. The continuity of the firing circuit for the squib is tested by passing a low magnitude electrical current through the test wires, the magnitude of which is low compared with the current passed through the detonating wires during ignition of the squib.

REFERENCES:
patent: 4990889 (1991-02-01), Lebsock
patent: 5122780 (1992-06-01), Midorikawa et al.
patent: 5158323 (1992-10-01), Yamamoto et al.
patent: 5406127 (1995-04-01), Furui et al.
patent: 5459449 (1995-10-01), Ravas, Jr. et al.

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