Real-Time High-Precision Reading Algorithm for the Ironless Inductive Position Sensor

This paper presents a novel reading algorithm for an ironless inductive position sensor which exhibits immunity to single-frequency interference (both for high and low frequency signals). This algorithm is based on the three-parameter sine fitting, whose performances have been enhanced with proper w...

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Bibliographic Details
Published in:IEEE transactions on nuclear science 2013-10, Vol.60 (5), p.3661-3668
Main Authors: Masi, Alessandro, Danisi, Alessandro, Di Castro, Mario, Losito, Roberto
Format: Article
Language:English
Subjects:
Algorithm design and analysis
Coils
Frequency estimation
Frequency response
High-precision position reading
linear variable differential transformer
Real-time systems
Signal processing algorithms
three-parameter sine fit algorithm
windowing
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Summary:This paper presents a novel reading algorithm for an ironless inductive position sensor which exhibits immunity to single-frequency interference (both for high and low frequency signals). This algorithm is based on the three-parameter sine fitting, whose performances have been enhanced with proper windowing function design. The proposed algorithm exhibits high precision and suitability for real-time implementation. The performances of the new algorithm are tested on simulated and measured signals and the results are discussed in detail. The algorithm has been finally tested and validated on a real-time target.
ISSN:0018-9499
1558-1578
DOI:10.1109/TNS.2013.2266439