Describes the procedures used at NBS to calibrate solid-state DC voltage standards in terms of the U.S. Legal Volt, and in connection with NBS Service Identification Numbers 53110 to 53150 listed in the NBS Calibration Services Users Guide.

Excerpt from The Calibration of DC Voltage Standards at Nist Solid-state voltage standards are calibrated at nist using a specially designed measurement sys tem (denoted It employs a potentiometric method allowing voltage measurements to be made without loading the standard. (an earlier version of this system is described in reference The system is a fully-automated scaling device for com paring arbitrary voltage standards to -v stan dard cells. A three step procedure is used to make a measurement of an unknown voltage: 1) the sys tem is self-calibrated using a group of standard cells of known emf, 2) the unknown solid-state standards are compared to the calibrated system, and 3) the system is self-calibrated again to make sure that no significant drifts in the system have occurred. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.