Calibration of a triangulation sensor
US10323927B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2018 |
| Grant date | Jun 18, 2019 |
| Priority date | — |
| Expiry date | Jun 22, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B21/042
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for calibrating a triangulation sensor including a light emitting unit for emitting measuring light and a light receiving unit. The light emitting unit is arranged with known position and orientation relative to the light receiving unit and the triangulation sensor which is adapted to provide triangulation-based position measurements. A calibration setup which comprises the triangulation sensor and a calibration target providing a defined calibration pattern, and a calibration measurement is performed with reference to the calibration target by means of the triangulation sensor. An image of the calibration target is captured by means of the light receiving unit, and the captured image is processed with deriving a pattern image position with reference to the inner sensor image coordinate system and deriving a light image position with reference to the inner sensor image coordinate system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.