UNCERTAINTY ANALYSIS ON AN OPTICAL MACHINE WITH VISION SYSTEM FOR THREE-DIMENSIONAL MEASURING WITHOUT CONTACT
Abstract
In order to rise to the traceability of the optical machine equipped with a television camera CCD (Charge Coupled Device), the purpose of this paper is to evaluate the ability of the optical machine to provide measurements, the dispersions of which are compatible with the specified tolerances and the dispersions of the process that is measured. Referring to the principles of the Statistics Inference, the purpose is to verify that the performance of the optical machine is in conformity with what the builder have stated, both in reference to the capability of the optical machine measurement to be in a sufficiently little interval around the expected value and in reference to the measurement variability. The analysis of experimental data seems that the results are very appreciable. The paper presents the basic ideas for evaluating the uncertainty expression in a measurement process of an optical machine equipped with a television camera CCD: this will allow to qualify the optical machine in each part as well as on the whole, since till today no metrological traceability of this equipment in primary metrology is provided, neither in national (SIT) nor in international level (EA).
Event details
- Event
- TC4 Symposium 2001
- Technical Committee
- TC4
- Place
- Lisbon, PORTUGAL
- Time
- 13 September 2001 - 14 September 2001