WSEAS Transactions on Circuits and Systems
Print ISSN: 1109-2734, E-ISSN: 2224-266X
Volume 14, 2015
On The Improvement of the High Frequency Traceability Chain: Application to Attenuators
Authors: ,
Abstract: The ISO/CEI 17025 standard requires to validate the testing and analytical methods when they are standardized or after amplification or modification of these methods. A measurement uncertainty must also be associated with the results. In High Frequency, All measurement devices must be linked with a reference called standard. In high frequency attenuation, there is no physical standards in this area for most of the national metrology laboratories Thus, a large number of theoretical measurement methods are adopted for the attenuators calibration. This publication describes the feasibility of a computable method HF attenuation made by the laboratory of electrical metrology to ensure traceability to the SI(The international system of units).The method has been completely studied in order to determine its characteristic parameter: attenuation ’A’. All comparative results between classical method and adopted method are presented here.
Search Articles
Keywords: Variable attenuation, Intermediate Frequency (IF), Bolometric bridge, Power sensor, Power variation (PV), Reflection Factor
Pages: 294-302
WSEAS Transactions on Circuits and Systems, ISSN / E-ISSN: 1109-2734 / 2224-266X, Volume 14, 2015, Art. #34