Geometrical instruments – Indicator of direction of force traversing natural media – Level or plumb – terrestrial gravitation responsive
Patent
1997-04-24
2000-03-07
Roskoski, Bernard
Geometrical instruments
Indicator of direction of force traversing natural media
Level or plumb, terrestrial gravitation responsive
G01C 906
Patent
active
060323752
ABSTRACT:
An inclination sensor includes a container in which an electrolyte liquid and a gas bubble are sealed. The container has a top member with a concave surface having a radius of curvature in a first direction larger than a radius of curvature in a second direction, perpendicular to the first direction. The concave surface is provided with two electrodes that are aligned in the first direction. An inclination of an object is measured by mounting the inclination sensor to the object and electrically detecting the position of the bubble as it contacts the concave surface, by passing a current through the liquid.
REFERENCES:
patent: 2713726 (1955-06-01), Dixson
patent: 2713727 (1955-07-01), Balsam
patent: 4583296 (1986-04-01), Dell'Acqua
patent: 5180986 (1993-01-01), Swartz et al.
Inoue Masahide
Shijo Yoshihisa
Shiokawa Takanobu
Sone Hiroshi
Asahi Kogaku Kogyo Kabushiki Kaisha
Roskoski Bernard
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