Resistance-type wood moisture meters are not reliable at moisture contents above the fibre saturation point. The aim of this study was to develop an alternative polarization-type wood moisture meter and to analyse the different calibration methods of this moisture meter in comparison with the traditional resistance-type wood moisture meter calibration method. A significant decrease (up to 3.5% of moisture content) in the tolerance interval of a single measurement was attained by introducing and integrating the original electrical wood charging number into the calibration model of the novel wood moisture meter with electric polarization effect for a high wood moisture content (MC) above 100%. The tolerance interval convergence was analysed using the traditional method of increasing the number of measurements and averaging the results and was compared to the novel method of compensating for random deviations, as used in this study. To calibrate the wood moisture meter, the wood’s electrical resistance and electrical capacitance timelines during the electrical charging cycle were registered in real time (online) with a preselected measuring speed and saved to the microcomputer memory. When the measurements were completed, the measurement data was processed by the device’s microcomputer. This novel polarization-type moisture meter allows for the moisture content of specific tree species to be predicted by selecting a suitable calibration model from a set of eight. The novel wood moisture meter can be used to monitor wood drying and to determine seasonal variations in the moisture content of growing trees.

电阻型木材水分计在水分含量高于纤维饱和点时不可靠。这项研究的目的是开发一种替代的极化型木材水分仪，并与传统的电阻型木材水分仪校准方法相比，分析该水分仪的不同校准方法。通过将原始的木材木材充电量引入并整合到新型具有木材极化作用的木材水分仪的校准模型中，可以将单次测量的公差区间显着降低（最多含水量的3.5％），从而实现高木材极化率水分含量（MC）高于100％。使用增加测量数量和平均结果的传统方法分析了公差区间的收敛性，并将其与本研究中使用的补偿随机偏差的新方法进行了比较。为了校准木材湿度计，在充电周期中以预先选择的测量速度实时（在线）记录木材的电阻和电容时间线，并将其保存到微机存储器中。当测量完成时，测量数据由设备的微型计算机处理。这种新颖的极化式水分计允许通过从八种选择中选择合适的校准模型来预测特定树木的水分含量。