Title :
Fast method applied to the measurement of microwave power standards
Author :
Mellouet, Bernard ; Velasco, Laurent ; Achkar, Joseph
Author_Institution :
Nat. Metrology Inst., Fontenay-aux-Roses, France
fDate :
4/1/2001 12:00:00 AM
Abstract :
An isothermal method was developed in order to reduce the efficiency measurement time of microwave power standards, using microcalorimeters. The first results given in the two waveguide standards IEC R100, (8.2-12.4) GHz and R220 (18-26.5) GHz show good agreement between classical and isothermal methods. The measurement time has been reduced by a factor of more than three, while keeping the same uncertainties
Keywords :
calorimeters; measurement standards; measurement uncertainty; microwave measurement; power measurement; waveguides; 18 to 26.5 GHz; 18-26.5 GHz; 8.2 to 12.4 GHz; 8.2-12.4 GHz; R220; efficiency measurement time; isothermal method; isothermal methods; measurement uncertainties; microcalorimeters; microwave power standards; waveguide standards IEC R100; Bridge circuits; Electromagnetic heating; Isothermal processes; Measurement standards; Microwave measurements; Microwave theory and techniques; Power measurement; Temperature; Thermistors; Time measurement;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
