Circuit for measuring absolute time lapse between impact and det

Details Circuit for measuring absolute time lapse between impact and det Circuit for measuring absolute time lapse between impact and det

1989-02-13

1989-08-01

Tarcza, Thomas H.

Horology: time measuring systems or devices

Time interval

Electrical or electromechanical

G04F 800

Patent

active

H00006661

ABSTRACT:
Insulating material is used to attach a conducting foil patch to conductive urface of motor case. The patch is a part of an open electrical circuit, along with a power source, timer and connecting wires until impact which causes the patch to collapse and come in contact with the motor surface, thus closing the circuit. When the circuit is closed and voltage is present, the timer records the time of impact and continues to count. A piezo-electric pin attached to motor case and connected to the timer creates voltage pulse upon detonation of motor case and this pulse stops the timer. Thus, accurate measurements of time lapse between impact and detonation can be made.

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