Development of a Thermal Voltage Converter With Calculable High-Frequency Characteristics

A thermal-voltage converter for high-frequency (HF-TVC) AC-DC transfer standard has been developed. The HF-TVC was designed such that the frequency characteristic is calculable from the shape and dimension of the input circuit. A new multi-junction thermal converter element (JSTC04) has been developed, which has a simple and straight heater configuration to minimize the parasitic impedances in the input circuit. The AC-DC difference of the HF-TVC was evaluated by two independent methods, with agreement better than 7 mu V/V up to 1 MHz. (C) 2011 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.