Simple LVDT signal to DC converter

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dc.contributor.authorPetchmaneelumka, Wandee
dc.contributor.authorSongsuwankit, Kanoknuch
dc.contributor.authorRiewruja, Vanchai
dc.date.accessioned2026-08-06T10:16:09Z
dc.date.available2026-08-06T10:16:09Z
dc.date.issued2017-02-18
dc.description.abstractA simple technique to produce a linear signal from a displacement transducer, linear variable differential transformer (LVDT), is introduced in this paper. The two-quadrant divider is used to precede the ratio of a different and sum of the two winding signals from the LVDT instead of a four-quadrant divider of a recent approach. The two- quadrant divider is obtained by an operational transcondutance amplifier (OTA) in the form of a voltage-tocurrent converter. The signal from the divider is held by the sample and hold circuit (SHC) controlled by the peak-amplitude finder. As a result, the held signal is achieved without using a low-pass filter. The temperature effect of both OTA and LVDT are compensated. The merit of the proposed technique is that the circuit requires without the low-pass filter. Therefore, the fast response is obtained. The performance of the proposed scheme is confirmed by the experimental results using commercial devices.
dc.identifier.citationACM International Conference Proceeding Series, Part F127852, 193-197, 2017
dc.identifier.doi10.1145/3057039.3057103
dc.identifier.other2-s2.0-85020930870
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/7504
dc.sourceACM International Conference Proceeding Series
dc.subjectDemodulation
dc.subjectLVDT
dc.subjectOperational transcondutance amplifier
dc.subjectPeak-amplitude finder
dc.subjectSample and hold circuit
dc.titleSimple LVDT signal to DC converter
dc.typeConference Paper

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