This introduction is part of a general tutorial on ac-dc transfer and the instrumentation used in ac-dc difference metrology given at the 1987 Measurement Science Conference by Joe Kinard. Click on each of the links in the upper menu on the right to see a brief description of the section. For a more detailed description of the characteristics of thermal transfer standards and ac-dc difference metrology, click on the links in the lower menu on the right. The full tutorial is included, as well as a PowerPoint presentation describing the AC-DC2 Project at NIST, with diagrams of thermal converters and other pertinent information.
