Effect of the method of checking digital voltmeters on their quality

Conclusions

In order to ensure high quality of released DV the method for determining their errors must either eliminate the effect of level quantization in the checked DV on the checking error, or the methodological error in checking caused by quantization and the attainable quantization step of the checked DV must be summed with the error used for the reference apparatus when choosing the latter.

The DV checking method explained in [3] can be used for a limited group of DV in which the quantization step is small in comparison with the maximum allowable errors over the entire measurement range of the checked DV.

It is desirable that the method for evaluating the error permit determination of both the maximum error, the normalization of which is presently used, and the statistical moments of the error, the normalization of which is more promising [4] and the introduction of which is contemplated in coming years.