2015 Volume 8 Issue 3 Pages 127-144
Thermal voltage converters have been widely used in the electric standard field as a major method to derive AC voltage standards from DC voltage standards. However, few organizations have skills for fabricating thermal voltage converters. Furthermore, establishing AC-DC voltage standards has been constrained by the lack of high-quality thermal converters. High-quality thermal converters are used only by national metrology institutes (NMIs), because conventional thermal converters are too fragile for many calibration service providers. The National Institute of Advanced Industrial Science and Technology (AIST) has developed new thin film multijunction thermal converters(TFMJTCs) to realize a reliable high-performance thermal converter. Development of a durable TFMJTC with a heater on an aluminum nitride (AlN) chip would be a significant contribution to Japanese calibration service providers.
