System and method for using structured shapes to increase laser scanner accuracy
US7725287B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 27, 2008 |
| Grant date | May 25, 2010 |
| Priority date | — |
| Expiry date | Aug 26, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B11/03
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method for determining the rectangular coordinate position of a first object spaced apart from and opposing a second object by placing at least three three-dimensional structures at different known locations on the top surface of the first object and a corresponding number of pulse transceivers at known locations on the bottom surface of the second object, directing a series of pulses having a known speed from each of the transceivers along a path crossing the highest point of a corresponding one of the structures, determining the shortest and second shortest distances travelled by the transmitted pulses and using that data together with other known data to locate edges of the first object and calculate the rectangular coordinate position of the first object with respect to the second object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.