Measuring and testing – Vibration – Sensing apparatus
Patent
1978-05-05
1980-01-29
Ciarlante, Anthony V.
Measuring and testing
Vibration
Sensing apparatus
G01N 2900
Patent
active
041855035
ABSTRACT:
A vibration detector having a mass pivotally mounted in a housing, means for sensing the vibration of the mass and means for damping the vibration of the mass has been found. The sensing of the vibration of the mass is performed through a combination of an optical and electrical means. The mass has a mirror, and an optical path from a fixed light source to a fixed light receiving plane through the mirror on the mass is provided. A beam sensor mounted at the light receiving plane, said beam sensor having a plurality of cells, senses the presence of the light beam from the light source through the mirror on each cell. The parallel light beam illuminates the specific cell depending upon the vibration of the mass and the illuminated cell provides an electric output signal indicating the reception of the beam. Thus, the vibration is detected as the electrical output of each cell.
REFERENCES:
patent: 3789674 (1974-02-01), Anderson et al.
patent: 3961185 (1976-06-01), Brokenshire et al.
Ciarlante Anthony V.
OKI Electric Industry Co., Ltd.
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