Measurement arrangement
US6531881B1 · kind B1 · utility
13Cited by
5References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1998 |
| Grant date | Mar 11, 2003 |
| Priority date | — |
| Expiry date | Nov 30, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B15/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A measuring device for determining the thickness of a non-homogeneous medium such as the thickness of a road structure. The device includes a radar transmitter and two spaced receivers. Information on the timing of the transmitted signal as well as the signals received by the two receivers is used to calculate the material thickness while eliminating signal drift.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.