Tiltsensor
US7055254B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 24, 2004 |
| Grant date | Jun 6, 2006 |
| Priority date | — |
| Expiry date | Nov 24, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C2009/068
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.