Calibration and uncertainty evaluation for sound level meter utilizing calibrator

Evaluation of assigned-value uncertainty for complex calibrator value assignment processes: a prealbumin example.

BACKGROUND Errors of calibrator-assigned values lead to errors in the testing of patient samples. The ability to estimate the uncertainties of calibrator-assigned values and other variables minimizes errors in testing processes. International Organization of Standardization guidelines provide simple equations for the estimation of calibrator uncertainty with simple value-assignment processes, b...

Gsics Seviri-iasi Inter-calibration Uncertainty Evaluation

This paper presents an analysis of the uncertainties in the Global Space-based Inter-Calibration System (GSICS) products for the infrared channels of Meteosat/SEVIRI using Metop/IASI as a reference. It is based on the Guide to the Expression of Uncertainty in Measurement (GUM) and aims to provides guidance for users of these GSICS products as well as future evaluations of other products. The in...

Measurement Uncertainty Evaluation Associated with Calibration Functions

− Calibration procedures are widely implemented in metrology. This paper considers the evaluation of measurement uncertainty associated with the use of a calibration function. Three methods for uncertainty evaluation are described and the differences in the results returned are discussed. A simple calibration function is used to illustrate these differences.

Phase meter calibration at NBS

National Bureau of Standards Gaithersburg, MD 20899 To provide a phase meter calibration service, a phase angle calibration standard has been developed at NBS. This standard is a signal. generator with two sinusoidal outputs and uses direct digital synthesis to generate the signals. The phase angle between the two sinusoids is determined by the input parameters in the calculation of the sets of...

In Line Flow-meter Calibration