Tiltsensor

a tilt sensor and tilt technology, applied in the field of high-, can solve the problems of over-exceeding the measuring range, affecting the accuracy of measurement results, and the effort involved in the adjustment of the installation of a single tilt sensor, and achieving the effect of high resolution and precision
US20060107540A1Inactive Publication Date: 2006-05-25UNIV OF BREMEN
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
UNIV OF BREMEN
Publication Date
2006-05-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

An adjustment-free tiltsensor for application in the fields of geodesy, geophysics and geotechnics, with a tilt angle measuring range greater than ±5° to ±10° and an essentially enhanced angular resolution better than 1 microradiant, in which an electrolytic liquid and a gas bubble are present in a closed spirit level, the spirit level is curved over an angle of up to 360°, a plurality of electrode configurations each having a plurality of electrodes are arranged along the spirit level for sensing the position of the gas bubble, the electrodes are in electric contact with the electrolytic liquid, and the electrodes are connected to a first electronic circuit, by means of which the electric quantities between selected electrodes can be measured.
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Description

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The invention relates to a high-resolution, preferably adjustment-free tiltsensor and a method for determining the tilt angle of the tiltsensor.

[0003] 2. Description of the Related Art

[0004] The use of high-resolution tiltsensors is known in the fields of geodesy, geophysics and geotechnics. A resolution of one microradiant or better is required in order to measure tiniest movements of objects. This high resolution is achieved by specially designed methods and sophisticated circuitry, but also by accepting a small measuring range of the tilt angle. The latter usually lies at approximately ±1°. These tiltsensors have a curved spirit level that contains an electrically conducting (electrolytic) liquid as well as a small gas bubble. The position of the gas bubble varies according to the tilt of the spirit level and is scanned by three electrodes. Such a high-resolution constructive design is shown in the User's Manua...

Claims

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