Method and apparatus for inspecting knocking detector

Details Method and apparatus for inspecting knocking detector Method and apparatus for inspecting knocking detector

2006-02-14

2006-02-14

Raevis, Robert (Department: 2856)

Measuring and testing

Instrument proving or calibrating

Apparatus for measuring by use of vibration or apparatus for...

C073S001380, C073S035090

Reexamination Certificate

active

06997034

ABSTRACT:
When a knocking detector mounted on a cylinder block of an engine is inspected, the cylinder block is vibrated by a vibrating unit via a housing connected to the cylinder block, and the performance of the knocking detector is judged based on whether or not a peak value of a voltage variation value serving as a detection value of the knocking detector is below a threshold value which has been set based on a peak value of a test voltage variation value serving as a reference value.

REFERENCES:
patent: 5421191 (1995-06-01), Pyko et al.
patent: 05-026778 (1993-02-01), None

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