Geometrical instruments – Indicator of direction of force traversing natural media – Level or plumb – terrestrial gravitation responsive
Patent
1997-02-24
1999-11-30
Gutierrez, Diego
Geometrical instruments
Indicator of direction of force traversing natural media
Level or plumb, terrestrial gravitation responsive
3336625, 33365, G01C 906
Patent
active
059920327
ABSTRACT:
An apparatus using piezoelectric effect is provided for measuring an angle between a reference plane and a plane to be measured. Such an apparatus can be used to measure the inclination of a plane or for leveling purpose. The main characteristics of the apparatus are simple in structure, no limitation in the measurement range, and less limitation to the environment. The apparatus also has the following advantages: compact, quick and accurate measurement, easy for multiaxial measurement.
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Chang Horng
Chiang Chung-I
Hsieh Chih-Wen
Hu Long-Jang
Jou Ming-Shing
Chung-Shan Institute of Science & Technology
Gutierrez Diego
Smith Richard A.
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