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Signal conditioning of a resistive potentiometric displacement sensor with a floating slide
Srinivas Rana,
Published in Institute of Electrical and Electronics Engineers Inc.
2015
Volume: 2015-July
   
Pages: 1769 - 1773
Abstract
Resistive potentiometric type displacement sensors suffer wear and tear due to the sliding contact. The wear and tear can be reduced considerably by using a floating, contactless slide. The coupling capacitor that arises due to the use of a floating slide makes it difficult to obtain an output that linearly varies with the displacement. A signal conditioning circuit presented in this work operates on a resistive potentiometer type displacement sensor element with a floating slide and provides an output that is directly proportional to the displacement of the slide. Apart from the displacement, the output from the signal conditioning circuit depends only on a couple of dc reference voltages thus ensuring a good degree of accuracy and linearity. The results obtained from simulation studies and experimentation performed on a prototype unit built and tested establishes the efficacy of the proffered method. © 2015 IEEE.
About the journal
JournalData powered by TypesetConference Record - IEEE Instrumentation and Measurement Technology Conference
PublisherData powered by TypesetInstitute of Electrical and Electronics Engineers Inc.
ISSN10915281
Open AccessNo
Concepts (14)
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    Potentiometers (electric measuring instruments)
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    Signal processing
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    Strain measurement
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    Transducers
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    Voltage dividers
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    CONTACT LESS
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    COUPLING CAPACITOR
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    Degree of accuracy
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    Displacement sensor
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    DISPLACEMENT TRANSDUCER
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    POTENTIOMETRIC TYPE
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    Reference voltages
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    Simulation studies
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    Signal conditioning circuits