Impact impulse measuring device

Details Impact impulse measuring device Impact impulse measuring device

1975-12-15

1977-05-17

Gill, James J.

Measuring and testing

Testing by impact or shock

Specimen impactor detail

73 712, 2351513, G01P 1504

Patent

active

040233960

ABSTRACT:
An impact impulse measuring device comprises, in accordance with the invention, an acceleration pick-up which transforms a mechanical shock into electric signals and is connected via an amplification unit to a unit for measuring the peak value of an impact impulse. The impact impulse measuring device also includes a noise rejector comprising a counting decade connected to the output of the unit for measuring the peak value of an impact impulse, a commutator coupled to outputs of the decade, an AND NOT gate, a flip-flop and an AND gate. The outputs of the commutator are connected via the AND NOT gate to an adjusting input of the flip-flop and its output is coupled with the AND gate. Eight levels of noise protection can be set with the help of commutator contacts. The proposed impact impulse measuring device increases the accuracy of measuring the peak value of the impact impulse by eliminating noise pulses from the measuring process, increases the quality of results obtained in shock tests and reduces the expenses of such tests.

REFERENCES:
patent: 3833797 (1974-09-01), Grobman et al.
patent: 3930248 (1975-12-01), Keller

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