New method for calibrating standard resistors

Conclusions

• 1) The use of the type MKS-1 bridge comparator and new intermediate standards has ensured the development of an improved technique in calibrating resistance standards and has made it possible to account for accumulated errors in transferring a resistance unit directly from the primary State Standard of an ohm.

• 2. The accuracy in evaluating the standards has been raised by at least one order as the result of applying the new technique. Moreover, calibration by two operators taking five to six months has been reduced to calibration by one operator taking two weeks. High precision in the calibration of standards has been obtained without mercury contacts, which affect to a considerable extent the health of the operators.