Rolling weight deflectometer
US9448148B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2013 |
| Grant date | Sep 20, 2016 |
| Priority date | — |
| Expiry date | Jun 4, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M5/0058
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for measuring the deflection of pavement under an applied load includes a longitudinally extending member mounted on a mobile carriage. A load wheel is mounted near the first end of the longitudinally extending member below a load platform. A first distance sensor is mounted near the load wheel to measure the depth of a deflection basin created by the wheel at a target location disposed on the pavement. A second distance sensor mounted at a predetermined distance from the first sensor to measure distance to the target location when the second distance sensor is positioned proximate to the target location. The device further includes a target designator for designating the target location and a target detector for detecting a position of the target location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.