Knocking detector

Details Knocking detector Knocking detector

1980-10-09

1984-01-03

Gill, James J.

Measuring and testing

Engine detonation

Combustion signal compared to reference signal varied by a...

123425, G01L 2322

Patent

active

044236212

ABSTRACT:
A rectifier rectifies the output of a sensor which senses vibrations of an engine. The output from the rectifier is supplied through a smoothing circuit to a comparator where the smoothed rectified output from the smoothing circuit and the output of the sensor are compared to obtain a signal representing knocking when the knocking occurs. This signal is used to cut off supply of the rectified signal from the rectifier to the smoothing circuit during knocking.

REFERENCES:
patent: 4002155 (1977-01-01), Harned et al.
patent: 4106447 (1978-08-01), West
patent: 4111035 (1978-09-01), West et al.
patent: 4153020 (1979-05-01), King et al.
patent: 4240388 (1980-12-01), Omori et al.

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