Engine vibration sensor

Details Engine vibration sensor Engine vibration sensor

1982-04-02

1984-05-15

Gill, James J.

Measuring and testing

Engine detonation

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

73651, 324 80, G01L 2322

Patent

active

044480598

ABSTRACT:
An improvement in an engine vibration sensor of the type including a vibrator set to resonate at a specific frequency of vibration of the engine to which it is attached, for example the engine knocking vibration frequency, wherein the vibration of the vibrator is converted to an electric signal representing the specific engine vibration. The improvement consists of forming the vibrator from a magnetic material and providing a magnetic field generator for applying a magnetic field of controlled intensity to the vibrator, whereby the resonant frequency of the vibrator can be adjusted by varying the intensity of the magnetic field.

REFERENCES:
patent: 2783643 (1957-03-01), Sihvonen
patent: 2974521 (1961-03-01), Phelps
patent: 2996586 (1961-08-01), Shindledecker et al.

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