Apparatus for detecting operating data of an internal combustion

Details Apparatus for detecting operating data of an internal combustion Apparatus for detecting operating data of an internal combustion

1982-02-11

1984-09-04

Gill, James J.

Measuring and testing

Engine detonation

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

G01L 2322

Patent

active

044689497

ABSTRACT:
An apparatus is proposed for detecting operating characteristics of an internal combustion engine. It has an optical sensor whose output signal is delivered to an amplifier with a variable transmission behavior. As a result, it is possible to have either a stepped or a continuous adaptation of the sensor sensitivity to various operational points of the engine. It is particularly proposed that the amplification for the measurement signal be selected to be high in the case of an opto-electrical combustion chamber observation in a low load range, while it is selected to be low in a high load range, so that relatively equalized measurement results are available for use.

REFERENCES:
patent: 3067610 (1962-12-01), Bockemuehl et al.
patent: 3754139 (1973-08-01), Swithenbank et al.

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