Measuring and testing – Vibration – Sensing apparatus
Patent
1995-01-24
1997-04-15
Williams, Hezron E.
Measuring and testing
Vibration
Sensing apparatus
348208, 396 52, G01N 2900, H04N 5232, G03B 500, G01H 1700
Patent
active
056211740
ABSTRACT:
A vibration detection device includes a detecting device for detecting a vibration, and an output from the amplifying device obtained when outputting a detection signal on the basis of the detection result, an amplifying device for amplifying the detection signal, an initializing device for initializing the output from the amplifying device, and an adjusting device for adjusting the output from the amplifying device so that an output from the amplifying device obtained when the amplifying device is initialized, and an output from the amplifying device obtained when the amplifying device is not initialized and the detecting device generates no signal have substantially the same values.
REFERENCES:
patent: 5099694 (1992-03-01), Sumio et al.
patent: 5231445 (1993-07-01), Onuki et al.
patent: 5282044 (1994-01-01), Misawa et al.
patent: 5459542 (1995-10-01), Fujiwara et al.
patent: 5469210 (1995-11-01), Noguchi et al.
Amanuma Tatsuo
Matsuzawa Masato
Ohishi Sueyuki
Miller Rose M.
Nikon Corporation
Williams Hezron E.
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