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- Title
Method for eliminating the influence of the antenna — studied medium interface on accuracy in contact radiometric measurements of the medium temperature.
- Authors
Rassadovsky, V. A.
- Abstract
We present the results of development of a method for eliminating the influence of an a priori unknown coefficient of reflection from the antenna — studied medium interface on accuracy of radiometric measurements of the medium temperature with the antenna contacting the medium. The method is based on modulation of receiver input noise and permits continuous automatic measurement of the reflection coefficient using the designed circuitry and algorithms for operating the radiometer and processing its output signal. Equations proving the efficiency of this method are obtained. The radiometer block diagram that realizes the proposed method is developed and a device for medical use is manufactured on its basis. Technical performance of the radiometer is given and test results of its measurement accuracy are presented.
- Subjects
ANTENNAS (Electronics); RADIATION measurements; TEMPERATURE; ALGORITHMS; MEASUREMENT
- Publication
Radiophysics & Quantum Electronics, 2007, Vol 50, Issue 10/11, p877
- ISSN
0033-8443
- Publication type
Article
- DOI
10.1007/s11141-007-0081-1