Estimation of uncertainty in three-dimensional coordinate measurement by comparison with calibrated points

This paper details a method of estimating the uncertainty of dimensional measurement for a three-dimensional coordinate measurement machine. An experimental procedure was developed to compare three-dimensional coordinate measurements with calibrated reference points. The reference standard used to calibrate these reference points was a fringe counting interferometer with a multilateration-like technique employed to establish three-dimensional coordinates. This is an extension of the established technique of comparing measured lengths with calibrated lengths. Specifically a distributed coordinate measurement device was tested which consisted of a network of Rotary-Laser Automatic Theodolites (R-LATs), this system is known commercially as indoor GPS (iGPS). The method was found to be practical and was used to estimate that the uncertainty of measurement for the basic iGPS system is approximately 1 mm at a 95% confidence level throughout a measurement volume of approximately 10 m × 10 m × 1.5 m. © 2010 IOP Publishing Ltd

Prozessautomation in der Lebensmittelindustrie

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Mess- und Regelungstechnik in abwassertechnischen Anlagen. Konzepte, Erfahrungen, Trends Manuskripte und Poster-Praesentationen

Themen dieses Konferenzbandes ueber Mess- und Regelungstechnik in abwassertechnischen Anlagen sind: Online-Analytik, Mess- und Stelltechnik; Einsatz modellgestuetzter Verfahren; Transparenz und Akzeptanz, Betriebsmanagement; Leittechnische Konzepte; Betriebsoptimierung. (SR)This conference volume on measurement and automatic control techniques at sewage treatment plants deals with the following subjects: online analytics, measurement techniques and control techniques; use of model-assisted techniques; transparency and acceptance, plant management; process control concepts; optimization of operation. (SR)Available from TIB Hannover / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

Regelung von raumlufttechnischen Anlagen Vortraege

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Optische Formerfassung Erfahrungsaustausch zwischen Anwendern und Entwicklern

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Robuste Regelung Vortraege

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Dehnungsmesstechnik Praktische Anwendung unter besonderen Anforderungen zur Erhoehung der Sicherheit und Verfuegbarkeit von Anlagen. Vortraege

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Steuerungstechnik. Methodik komplexer Anwendungen: Projektierung -Inbetriebnahme - Betrieb

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Magnetik in der Messtechnik Vortraege

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Industrieroboter - messen und testen Vortraege

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