Multiplexed single-channel knock sensor signal conditioner syste

Details Multiplexed single-channel knock sensor signal conditioner syste Multiplexed single-channel knock sensor signal conditioner syste

1991-10-31

1994-02-08

Chapman, John E.

Measuring and testing

Engine detonation

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

G01L 2322

Patent

active

052840476

ABSTRACT:
A multiplexed single channel knock sensor signal conditioner system for internal combustion engines includes a plurality of sensors for sensing the vibrations associated with knocking in an internal combustion engine; a single signal conditioning channel for providing a signal level representative of the magnitude of the knock; and means for selectively connecting the sensors to the signal conditioning channel. The signal conditioning channel includes a band pass filter, the frequency characteristics of which are adjusted according to the sensor connected to the signal conditioning channel.

REFERENCES:
patent: 4337640 (1982-07-01), Muranaka et al.
patent: 4819171 (1989-04-01), Morita
patent: 4945876 (1990-08-01), Nakaniwa

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