Title :
Low-frequency ac-dc voltage transfer standards with new high sensitivity and low power coefficient thin-film Multijunction Thermal Converters
Author :
Laiz, H. ; Klonz, M. ; Kessler, E. ; Kampik, M. ; Lapuh, R.
Author_Institution :
Instituto Nacional de Tecnologia Ind., San Martin, Argentina
Abstract :
New Planar Multijunction Thermal Converters (PMJTC) with low power coefficient and high dynamic range using CuNi44/BiSbTe-thermocouples were developed. Together with carefully evaluated range resistors for voltages up to 1000 V they resulted in ac-dc transfer standards with negligible ac-dc voltage transfer difference at low frequencies. The measuring system was improved with a new highly stable low frequency voltage source.
Keywords :
convertors; thermocouples; transfer standards; voltage measurement; 1000 V; AC-DC voltage transfer standard; CuNi-BiSbTe; CuNi/BiSbTe thermocouple; dynamic range; low-frequency voltage source; planar multijunction thermal converter; power coefficient; resistor; sensitivity; thin-film multijunction thermal converter; Analog-digital conversion; Bismuth; Costs; Dynamic range; Frequency measurement; Low voltage; Resistors; Stability; Temperature sensors; Transistors;
Conference_Titel :
Precision Electromagnetic Measurements, 2002. Conference Digest 2002 Conference on
Conference_Location :
Ottawa, Ontario, Canada
Print_ISBN :
0-7803-7242-5
DOI :
10.1109/CPEM.2002.1034745
