Laser tracker used with six degree-of-freedom probe having separable spherical retroreflector
US8902408B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 23, 2012 |
| Grant date | Dec 2, 2014 |
| Priority date | — |
| Expiry date | Dec 15, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/122
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for measuring three-dimensional coordinates of a probe center includes: providing a spherically mounted retroreflector; providing a probe assembly; providing an orientation sensor; providing a coordinate measurement device; placing the spherically mounted retroreflector on the probe head; directing the first beam of light from the coordinate measurement device to the spherically mounted retroreflector; measuring the first distance; measuring the first angle of rotation; measuring the second angle of rotation; measuring the three orientational degrees of freedom based at least in part on information provided by the orientation sensor; calculating the three-dimensional coordinates of the probe center based at least in part on the first distance, the first angle of rotation, the second angle of rotation, and the three orientational degrees of freedom; and storing the three-dimensional coordinates of the probe center.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.