Measurement Uncertainty Estimation in Photometric Characteristics of Non-Replaceable Light Source

Abstract

Recommendations for measurement uncertainty estimation procedure of lighting equipment photometric characteristics in transport facilities with non-replaceable light sources are given in the paper. The paper proposes a mathematical model for evaluation of standard and expanded uncertainty at indirect measurement of luminous intensity in view of possible correlation between input quantities. Factors of sensitivity determining contribution of every random quantity in experimentally measured value are calculated.