Impact sensing detector

Details Impact sensing detector Impact sensing detector

1977-12-23

1980-06-03

Trafton, David L.

Communications: electrical

Condition responsive indicating system

Specific condition

100 99, 340683, 364475, 364476, 364551, G08B 2300

Patent

active

RE0302988

ABSTRACT:
An impact sensing detector for monitoring the operation of metal forming impact presses. The detector operates on an analog electric signal corresponding to the shock wave produced as the press ram impacts the fixed press platen and workpiece to produce a plurality of samples of the amplitude of said analog signal. These samples are digitized and compared against time corresponding standard samples previously derived from normal press operation. The detector may also be applied to other working areas of the press where waveform analysis can detect improper operation in order to avoid catastrophic failures. Predetermined differences between compared samples produce warning indicator signals which may be used to stop the press and also a fault analysis tool to help the press operator pinpoint the malfunction.

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patent: 3161044 (1964-12-01), Harrison et al.
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patent: 3474438 (1969-10-01), Lauher
patent: 3750134 (1973-07-01), Weisend
patent: 3839628 (1974-10-01), Higgins et al.
patent: 3841149 (1974-10-01), Edwin et al.
patent: 3848115 (1974-11-01), Sloane et al.

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