Automated and accelerated warm-up and stability check for laser trackers
US8511891B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2012 |
| Grant date | Aug 20, 2013 |
| Priority date | — |
| Expiry date | Jun 12, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/42
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for warming up a first instrument that includes providing an instrument measuring a first instrument temperature with the first temperature sensor at a starting time; measuring a first air temperature with the second temperature sensor at the starting time; determining a first profile based at least in part on the first instrument temperature and the first air temperature, the first profile representing an amount of first electrical current applied as a function of time, the first profile selected to provide a predicted level of instrument performance within a warm-up time; applying the first electrical current according to the first profile; and providing an operator at the starting time with a numerical value for the warm-up time of the instrument, wherein the warm-up time is based at least in part on the first instrument temperature and the first air temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.