Spherical surface capacitive type plane level detection sensor

Abstract

The invention relates to a spherical surface capacitive type plane level detection sensor. The spherical surface capacitive type plane level detection sensor consists of a plastic spherical surface (1), a fixing electrode A (2), a fixing electrode B (3), a fixing electrode C (4), a liquid-state movable electrode (5) and a base (6), wherein the plastic spherical surface (1) is a hollow spherical surface and is internally provided with a half capacity of conductive liquid to form the liquid-state movable electrode (5); the outer surface of the plastic spherical surface (1) is longitudinally divided into trisection spherical surfaces; each of the one third spherical surfaces is provided with a metal film in a plating manner, so that the three fixing electrodes are formed; the three fixing electrodes are mutually insulated; the three fixing electrodes and the liquid-state movable electrode (5) form three changeable capacitors; when the base is arranged on a horizontal surface, the capacities of the three capacitors are equal; when a plane is inclined, the capacities of the three capacitors are changed, the position of the surface with the enlarged capacity is low, and the position of the surface with the reduced capacity is high, so that the level of the plane can be judged.

Description

technical field [0001] The invention relates to sensing, machinery, instrumentation and manufacturing technology, in particular to an electronic level for measuring whether a plane is horizontal. Background technique [0002] The traditional level is a bubble level, and the bubble level mainly relies on the offset of the bubble offset from the middle position of the level to measure the unevenness of a certain area on the surface of the workpiece. The disadvantage is that the bubble level is very sensitive to temperature. As the temperature rises, the length of the bubble changes, and the size of the inner cavity of the bubble tube also changes, resulting in an increase in the measurement error of the instrument; secondly, each working surface of the bubble level must be cleaned before use. It is necessary to judge whether the zero position of the level meter is accurate according to the position of the bubble, and can only measure the horizontal degree in a limited directio...

AI Technical Summary

Problems solved by technology

[0003] The invention designs a spherical capacitive plane level detection sensor, which creates conditions for the electronic level, and solves the shortcomings of the traditional bubble level, such as low sensitivity and accuracy, and incapable of digital display.

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