Title :
Undesired uncertainty in conducted full-compliance measurements: a proposal for verification of conformity of LISN parameters according to the requirements of CISPR16-1
Author :
Tomasin, P. ; Zuccato, A. ; Florean, D.
Author_Institution :
CREI Ven, Res. Consortium on Ind. Electron., Padova, Italy
Abstract :
In this paper the effects of the unspecified phase of the EUT-port impedance of line impedance stabilization network (LISN) are discussed. In particular, the influence of unknown phase is extensively analyzed, showing that measurement inaccuracies may occur when the EUT noise source impedance is substantially reactive. To solve the lack of requirements, a simple procedure based on scalar reflection measurements is described. It allows the verification of conformity of the EUT-port LISN impedance taking into account both modulus and phase
Keywords :
electric impedance measurement; electric noise measurement; electromagnetic compatibility; electromagnetic interference; measurement uncertainty; CISPR16-1 requirements; EMC European Directive 89/336/EEC; EUT noise source impedance; LISN parameters conformity; conducted full-compliance measurements uncertainty; conducted radiofrequency emission measurement; equipment under test; line impedance stabilization network; modulus; phase; scalar reflection measurements; Circuits; Electromagnetic compatibility; Impedance measurement; Instruments; Noise generators; Noise measurement; Phase detection; Phase measurement; Proposals; Radio frequency;
Conference_Titel :
Electromagnetic Compatibility, 2001. EMC. 2001 IEEE International Symposium on
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-6569-0
DOI :
10.1109/ISEMC.2001.950504
