Three-channel radio-frequency sensors with one sensitive element for invariant measurements

An algorithm for converting the primary data of a radio-frequency sensor, containing a sensitive element in the form of a distributed long line, excited at three resonance frequencies, is developed in connection with the problem of the invariant measurement of the position of the interface of a doub...

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Bibliographic Details
Published in:Measurement techniques 2010-09, Vol.53 (5), p.549-555
Main Authors: Lunkin, B. V., Kriksunova, N. A.
Format: Article
Language:English
Subjects:
Algorithms
Analytical Chemistry
Characterization and Evaluation of Materials
Converting
Excitation
Interfaces
Invariants
Joints
Measurement
Measurement Science and Instrumentation
Measurement techniques
Physical Chemistry
Physics
Physics and Astronomy
Radio frequency
Radio Measurements
Sensors
Studies
Uniqueness
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Summary:An algorithm for converting the primary data of a radio-frequency sensor, containing a sensitive element in the form of a distributed long line, excited at three resonance frequencies, is developed in connection with the problem of the invariant measurement of the position of the interface of a double-layer medium. The output characteristics of this algorithm for simple structures of the sensitive element are investigated.Its configuration to ensure uniqueness of the measurement and uniform sensitivity over the whole range of variation of the interface is synthesized.
ISSN:0543-1972
1573-8906
DOI:10.1007/s11018-010-9541-7