Title :
Coaxial shunts for the ac-dc transfer standards of current
Author :
Pogliano, U. ; Bosco, G.C. ; Serazio, D.
Author_Institution :
Ist. Naz. di Ricerca Metrologica, Torino
Abstract :
A new type of coaxial shunts, with nominal current from 20 mA to 20 A have been designed at I.N.RI.M.. Different approaches have been used to built them, depending on their nominal current. In the currents between 100 mA and 20 A they are made as a disk structure, using either SMD resistors or manganin foils. In order to reduce stray effects, their structures have ideally no common magnetic interaction between the input current and the output voltage, allowing a flat response in a wide frequency range.
Keywords :
electric current measurement; measurement standards; resistors; AC-DC transfer standards; coaxial shunts; current 20 mA to 20 A; disk structure; input current; magnetic interaction; manganin foils; output voltage; resistors; Capacitance; Circuits; Coaxial components; Current measurement; Frequency measurement; Inductance; Insulation; Resistors; Temperature; Voltage;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 2008. CPEM 2008. Conference on
Conference_Location :
Broomfield, CO
Print_ISBN :
978-1-4244-2399-6
Electronic_ISBN :
978-1-4244-2400-9
DOI :
10.1109/CPEM.2008.4574637
