Uniaxial horizontal sensor

Details Uniaxial horizontal sensor Uniaxial horizontal sensor

1997-02-19

1999-08-03

Fulton, Christopher W.

Geometrical instruments

Indicator of direction of force traversing natural media

Level or plumb, terrestrial gravitation responsive

3336614, 3336615, G01C 906

Patent

active

059309075

ABSTRACT:
A uniaxial horizontal sensor wherein factors causing errors are eliminated having high resolution and reproducibility and stability of detection with which a high levelness of inclination angle zero can be secured by attitude control has a construction wherein an electrode holding body (1) made of an insulating material has an electrode chamber (11) having an encircling wall with an inner peripheral wall surface of a high three-dimensional surface roughness and of a surface of rotation shape obtained by rotating a circular arc line (AL) of a predetermined radius with a point (P) on a vertical line (V) as its center and bisected by the vertical line (V) about a horizontal center axis (H) intersecting orthogonally with the vertical line (V) and having a common electrode (2) projecting into the electrode chamber (11) in the same position as the vertical line (V) and peripheral electrodes (3) in left-right symmetrical positions on either side of the common electrode (2) and projecting further into the electrode chamber (11) than the common electrode (2) and a bubble (5) and an electrolyte (4) mixed in such a ratio that the inter-electrode impedance becomes a predetermined value in the horizontal state are sealed inside the electrode chamber (11) in such a state that the common electrode (2) is always immersed in the electrolyte (4) and does not make contact with the bubble (5) and in the horizontal state the peripheral electrodes (3) also do not make contact with the bubble (5).

REFERENCES:
patent: 3271650 (1966-09-01), Riddle
patent: 4484393 (1984-11-01), LaFreniere
patent: 5625955 (1997-05-01), Han

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