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  • Resistor network for linearity check of voltage ratio meters by combinatorial calibration technique
    Hiti, Miha
    This article describes a resistor network for linearity verification of voltage ratio-indicating instruments. The network is based on a resistive divider with low variation of input and output ... resistance. To compensate for the output resistance change due to a selection of various output ratios, a switched variable compensating resistor network is added to the output leads of the voltage divider. It limits the variation of output resistance to <5% ata ratio of 1Č10 and <0.5% for ratios 1Č100 or higher. The application of thecircuit is shown in the example of an output voltage ratio simulation of a strain gauge bridge transducer, typical in the measurement of mechanical quantities such as force, torque, and pressure. The circuit is suitable for verifying the linearity of voltage ratio measuring instruments by using a combinatorial calibration technique without the need to calibrate the resistornetwork. Results are shown for the linearity check of a high-precisionstrain gauge amplifier.
    Vir: Measurement science & technology. - ISSN 0957-0233 (Vol. 26, no. 5, maj 2015, str. 1-7)
    Vrsta gradiva - članek, sestavni del
    Leto - 2015
    Jezik - angleški
    COBISS.SI-ID - 2107239

    Povezava(-e):

    http://iopscience.iop.org/0957-0233/26/5/055002/article
    DOI

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