Apparatus and method for calculating vibration displacement...

Details Apparatus and method for calculating vibration displacement... Apparatus and method for calculating vibration displacement...

2006-05-02

2006-05-02

Williams, Hezron (Department: 2856)

Measuring and testing

Vibration

Sensing apparatus

C073S655000, C356S329000

Reexamination Certificate

active

07036377

ABSTRACT:
An apparatus for calculating vibration displacement of a vibrator according to one aspect of the present invention includes a mirror attached to a predetermined portion of a vibrator; a light emitting unit installed at a predetermined position spaced apart from the mirror and irradiating light on the mirror; a light receiving unit installed side by side with the light emitting unit, receiving light reflected by the mirror and generating an output voltage corresponding to the amount of the receiving light; and a vibration displacement calculating unit for calculating vibration displacement of the vibrator based on the generated output voltage.

REFERENCES:
patent: 6172752 (2001-01-01), Haruna et al.
patent: 6381015 (2002-04-01), Sonehara et al.
patent: 11351958 (1999-12-01), None
patent: 1384922 (1987-10-01), None

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