Title :
Direct-Reading Microwave Refractometer With Quartz-Crystal Reference
Author :
Vetter, M. J. ; Thompson, M. C.
Author_Institution :
Environmental Science Services Administration, Institute for Telecommunication Sciences, Tropospheric Telecommunications Laboratory, Boulder, Colo. 80302.
Abstract :
A microwave refractometer is described in which the usual reference cavity is replaced by a stable quartz-crystal oscillator. Direct digital readout of refractive index with least count of 0.01 N unit is provided.
Keywords :
Cavity resonators; Microwave oscillators; Phase measurement; Radiation detectors; Resonant frequency; Voltage-controlled oscillators;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.1971.5570740
