Title :
Dynamic substitution measurement
Author_Institution :
Czechoslovak Inst. of Metrol., Bratislava, Czechoslovakia
Abstract :
A substitution method of measurement using an adaptive real-time control based on the evaluation of the non-steady-state response of the indicating device is described. The method significantly speeds up the measurement and reduces the demand for stability of the indicating device. The method has been implemented on a microcalorimeter for measurement of the effective efficiency of RF and microwave power mounts in the Czechoslovak Institute of Metrology. Its utilization led to a very simple calorimeter with a thermistor sensor and without any active temperature stabilization.<>
Keywords :
calorimeters; comparators (circuits); microwave measurement; power measurement; AC/DC comparison; Czechoslovak Institute of Metrology; RF; adaptive real-time control; calorimeter; dynamic substitution measurement; effective efficiency; indicating device; microcalorimeter; microwave power mounts; nonsteady state response; stability; thermistor sensor; Adaptive control; Microwave devices; Microwave measurements; Microwave theory and techniques; Power measurement; Programmable control; Radio frequency; Stability; Temperature sensors; Velocity measurement;
Conference_Titel :
Precision Electromagnetic Measurements, 1990. CPEM '90 Digest., Conference on
Conference_Location :
Ottawa, Ontario, Canada
DOI :
10.1109/CPEM.1990.110074
