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Hodnocení přesnosti měření vlhkosti dřeva smrku při použití elektrického odporového vlhkoměru
 Ondráček, Michal
This bachelor thesis focuses on the evaluation of the accuracy of spruce wood moisture measurement using an electrical resistance hygrometer. In the theoretical part, the basic properties of wood and its influence on moisture measurement are described. Furthermore, the different methods of measuring wood moisture are described and, above all, the principle of measurement using an electrical resistance hygrometer is discussed in detail. In the practical part, the moisture content of spruce wood was measured with three electric resistance moisture meters and the results were then compared with a reference gravimetric measurement method. Moisture meter No. 1 showed the most accurate results in determining the moisture content, but even it did not come close to the actual moisture content determined by gravimetry. Moisture meters 2 and 3 obtained identical measurements, but the measured moisture content differed significantly from the actual moisture content of the wood determined gravimetrically. These two hygrometers showed worse results than hygrometer No 1.
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