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  • Porosity determination by using stochastics method
    Matko, Vojko
    In response to a need for a more accurate porosity measuring method for small solid sample s (approximately 1 g in mass) the porosity measurement sensor using the sensitive capacitive-dependent ... crystal was developed. This paper presents the new sensor and the probe sensitivity (dependence of df on the volume). In addition, the new idea of excitation of the entire sensor with stochastic test signals is described, and the porosity measuring method is provided. The latter includes the influence of test signals on the weighting function uncertainty. The experimental results of the porosity determination in volcanic rock samples are presented. The uncertainty of the porosity measurement is less than 0.1 % (Temp = 10-30 °C).
    Source: Automatika : časopis za automatiku,mjerenje,elektroniku ... = journal for control, measurement,electronics .. - ISSN 0005-1144 (44, 3/4, 2003, str. 155-162)
    Type of material - article, component part
    Publish date - 2003
    Language - english
    COBISS.SI-ID - 8910102

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