Low cost transmitter with calibration means for use in position measurement systems
US6618133B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2002 |
| Grant date | Sep 9, 2003 |
| Priority date | — |
| Expiry date | Jul 26, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06Q10/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An improved, low-cost optical transmitter and method useful in a three-dimensional measurement system wherein a plurality of operational parameters of said transmitter are calibrated during manufacture/assembly process to generate unique calibration data for each optical transmitter including data defining angles of each transmitter's first and second radiant fan beams and the angle between the beams when the transmitter is leveled for operation in the system and wherein a detector/receiver in the system distinguishes between radiant beams from a plurality of individual transmitters operable within a given measurement field as a function of the selectively alterable rotational velocity calibration data for each of said transmitters and wherein said angular calibration data for each transmitter is operationally available to each detector/receiver operable in the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.