Indirectly Measurable Variable Maximum Absolute Inaccuracy Maximum Relative Inaccuracy Dimensionless Scale
Issue Date:
22-Nov-2010
Publisher:
University Press "Paisii Hilendarski", Plovdiv
Abstract:
Let us have an indirectly measurable variable which is a function of
directly measurable variables. In this survey we present the introduced by us
method for analytical representation of its maximum absolute and relative
inaccuracy as functions, respectively, of the maximum absolute and of the relative
inaccuracies of the directly measurable variables. Our new approach consists of
assuming for fixed variables the statistical mean values of the absolute values of
the coefficients of influence, respectively, of the absolute and relative inaccuracies
of the directly measurable variables in order to determine the analytical form of
the maximum absolute and relative inaccuracies of an indirectly measurable
variable. Moreover, we give a method for determining the numerical values of the
maximum absolute and relative inaccuracies. We define a sample plane of the
ideal perfectly accurate experiment and using it we give a universal numerical
characteristic – a dimensionless scale for determining the quality (accuracy) of the
experiment.
