Abstract. Virtual assembly (VA) is a method for datum definition and quality prediction of assemblies considering local form deviations relevant geometries. Point clouds measured objects are registered in order to recreate the objects' hypothetical physical state. By VA, geometrical verification becomes more accurate and, thus, increasingly function oriented. The VA algorithm nonlinear, constra...

Abstract Knowledge of the measurement uncertainty test results is fundamentally important for laboratories, their customers and all parties using interpreting these results. In conformity assessment, a result used to decide if an item interest conforms specified requirement. Because uncertainty, there always risk incorrectly deciding whether or not requirement based on measured value property i...

Measurement uncertainty that arises from primary sampling can be expressed as an uncertainty factor, which recognises its sometimes approximately log-normal probability distribution. By contrast, uncertainty arising from chemical analysis is usually expressed as relative uncertainty, based upon the assumptions of its approximately normal distribution. A new method is proposed that enables uncer...

'Measurement uncertainty of measured quantity values' (ISO15189) requires that the laboratory shall determine the measurement uncertainty for procedures used to report measured quantity values on patients' samples. Where we have numeric data measurement uncertainty can be expressed as the standard deviation or as the co-efficient of variation. However, in immunology many of the assays are repor...