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Author: search.filters.author.Rungkhum, TipparatSubject: search.filters.subject.Resistive sensor

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    Interface circuit using operational conveyors for differential resistive sensors
    (2013-09-02)
    Julsereewong, Amphawan
    ;
    Julsereewong, Prasit
    ;
    Rungkhum, Tipparat
    ;
    Sasaki, Hirofumi
    In this paper, a simple and accurate circuit for interfacing differential resistive sensors is presented. The realization method employs three operational conveyors as active elements to provide voltage output linearly proportional to sensing resistance change. The performance is confirmed through PSPICE simulation and experimental results. © 2013 IEEE.
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    Simple resistance-to-frequency converter with lead-wire-resistance compensation
    (2013-03-28)
    Julsereewong, Amphawan
    ;
    Petchmaneelumka, Wandee
    ;
    Rungkhum, Tipparat
    ;
    Yahara, Mitsutoshi
    ;
    Fujimoto, Kuniaki
    This article presents a simple technique to realize a resistance-to-frequency converter for single resistive sensor-based remote measurements. The proposed realization method uses commercially available devices to generate output frequency, which is linearly proportional to sensing resistance deviation. Experimental results are shown that not only the good circuit operation but also the effective lead-wire-resistance compensation of the proposed technique can be obtained. © 2013 ICIC International.
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    Resistive sensor interface circuits using operational conveyor and operational amplifier
    (2012-03-01)
    Julsereewong, Amphawan
    ;
    Julsereewong, Prasit
    ;
    Rungkhum, Tipparat
    ;
    Sasaki, Hirofumi
    ;
    Isoguchi, Hiroshi
    A simple technique based on commercially available devices to implement three interface circuits for both differential resistive sensors and single resistive sensors is presented in this article. Each proposed scheme uses an operational conveyor and an operational amplifier as active elements. Surpassing the previously reported circuits, the proposed circuits provide not only simpler structures but also higher accuracy. Performances of the proposed circuits are verified through computer simulations. © 2012 ICIC International.
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    Simple linearization technique for remotely measuring resistance changes
    (2011-08-01)
    Julsereewong, Amphawan
    ;
    Julsereewong, Prasit
    ;
    Rungkhum, Tipparat
    ;
    Sasaki, Hirofumi
    ;
    Isoguchi, Hiroshi
    A simple linearization technique for remotely measuring resistance changes of single-element resistive-type sensors is presented in this article. The proposed circuit configuration uses commercially available devices to generate the output voltage, which is linearly proportional to the sensing resistance change. PSPICE simulation results are included to confirm not only the good operation but also the effective lead-resistance compensation of the proposed technique.
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    Interface circuit for single active element resistive sensors
    (2010-10-01)
    Julsereewong, Amphawan
    ;
    Julsereewong, Prasit
    ;
    Rungkhum, Tipparat
    ;
    Sasaki, Hirofumi
    ;
    Isoguchi, Hiroshi
    This article presents an effective method to realize interface circuit for single active element resistive sensors. The realization is composed of op-amp in conjunction with current conveyors. Surpassing the previous circuit using only single current conveyor, the proposed configuration affords significant improvement in accuracy. PSPICE simulation results are used to confirm the performance of the proposed circuit. © 2010 ICIC International.