1.Seminar UNRI UKM Ke–5 Tahun 2008

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Browsing 1.Seminar UNRI UKM Ke–5 Tahun 2008 by Subject "sensor thermistor"

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    RECONSTRUCTION OF THE R-T-CURVE OF THE THERMISTOR SENSOR BASED ON PARAMETER EXTRACTION OF THE CURRENT-VOLTAGE CURVE
    (2014-03-10) Umar, Lazuardi
    A parameter extraction of the current-voltage curve of the thermistor sensor for reconstruction of its resistance-temperature dependency curve is proposed. The sensor is supplied with variable voltage of 0-30V and measured in a climatic room with temperature from -20°C to +80°C to obtain the current-voltage characteristic. Parameter extraction is used to control parameter changes of important sensor parameters such as resistances RTo and the temperature coefficient b of the thermistor itself in accordance to the temperature TM of the medium. The result of the parameter extraction gives RTo value 143.286 Ω at temperature of 373K, temperature coefficient b1 0.01 K-1 and b2 9.993 10-3 K-2 respectively and are used to reconstruct the R-T-curve.