Device for measuring distance
US6698289B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2001 |
| Grant date | Mar 2, 2004 |
| Priority date | — |
| Expiry date | Oct 16, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B17/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a device for distance measurement, comprising a transmission element (9) for emitting pulsed acoustic or electromagnetic waves. Said transmission element is provided at a first end of a distance (L) or at a known distance from said first end. The device contains a receiving element (13) for the emitted waves. Said receiving element (13) receives said waves at a second end of the distance (L) or, after reflection at the second end, at the first end. An evaluation and control unit (11) calculates the distance (L) from the running time and the signal speed. According to the invention, a telescope tube (3) with two engaging tube elements (5, 7) is used between the first and second end. The transmission element (9) and the receiving element (13) are arranged on the tube elements (5, 7) respectively or are coupled thereto via waveguides. One of the tube elements can also be coupled to a displaceable element which can change location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.