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Items for "uncertainty of measurement"

Reduction and Evaluation of the Uncertainty of Measurement of Optical Gear Measurement using Fringe Projection

The application of a fringe projection system, which works as a 3D imaging device based on triangulation and phase shift technique, is particularly suitable for in-line testing of precision-forged gearwheels...

Keywords: gear measurement, fringe projection, uncertainty of measurement, calibration, precision-forging

11/2006 | tm – Technisches Messen, Oldenbourg Wissenschaftsverlag

Quality assessment of quantitative analytical results in laboratory medicine by root mean square of measurement deviation

The current Guidelines of the German Medical Association (“Richtlinien der Bundesärztekammer”, RiLiBÄK) define minimum requirements for the quality assessment of quantitative measurements in laboratory medicine, in particular concerning metrological controls...

Keywords: analytische Messungen, messtechnische Kontrolle, Messunsicherheit, Qualitätskontrolle, systematische Messabweichung, Vergleichbarkeit, Wiederholpräzision

07/2006 | LaboratoriumsMedizin, Walter de Gruyter

Calibration of Platinum Resistance Thermometers – Modelling the Measurement for Assessing the Uncertainty

With the example of calibrating a precision resistance thermometer at selected fix points of the temperature scale ITS 90, systematic modelling of a measurement for the evaluation of the measurement uncertainty is presented...

Keywords: calibration, uncertainty of measurement, thermometry

10/2007 | tm – Technisches Messen, Oldenbourg Wissenschaftsverlag

Uncertainty of Measurement in the Determination of Roughness Parameters Using Contact Stylus Instruments

A model is presented to describe the sources of measuring uncertainty starting with the process of contacting through to the calculation of roughness parameters...

Keywords: surface roughness parameters, uncertainty of measurement, contact stylus measurement

10/2007 | tm – Technisches Messen, Oldenbourg Wissenschaftsverlag

Pre-analytical variation of some haematological quantities

Background: It is customary to assume that pre-analytical variation is negligible if all pre-analytical sources of variation have been standardised...

Keywords: pre-analytical variation, pre-metrological variation, uncertainty of measurement

08/2008 | Clinical Chemical Laboratory Medicine, Walter de Gruyter