Optimum accuracy of measuring devices used in testing complex technological systems

Conclusions

• 1. In carrying out experiments with complex technological test objects, in order to make the whole operation less expensive it is essential to use instruments with an economic accuracy, i.e., such as will only give a specified experimental reliability, without involving the processing of an unnecessary amount of information. The tendency to do such work on the principle of “the more accurate the better” is erroneous.

• 2. The economic accuracy for any particular experimental problem may be calculated by the methods set out in this article if we know the fluctuations of the physical quantities and the metrological characteristics of the measuring instruments reflecting their statistical properties.