Electrical circuit

The existing acceleration measuring methods are analyzed in the article. An overview of modern research on this topic is also provided. A new method of measuring acceleration in the form of an electrical circuit using a stable frequency generator is developed. Among the already known methods, the following three groups are highlighted in the analysis: methods based on compensatory accelerometers with discrete output; methods based on accelerometers with the analog-to-digital converter; measurement techniques, which use mounted elements.

In  this paper  three examples of processing uncertainties of a  indirect multi-variable measurement system are considered. It was proposed to extend the vector method of estimating measurement uncertainties, given in Supplement 2 to GUM, on  the  statistical  description  of  the  accuracy  of  whole  ranges  of  indirect multivariable measurement  system.  Formula  for  the covariance matrix of relative uncertainties of the vector measurand is given.