Open AccessJustification of the device operation principle for measuring the potential difference in tree trunks
Author(s) -
Нина Камалова,
Natalya Evsikova
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/595/1/012018
Subject(s) - schematic , humidity , tree (set theory) , relative humidity , work (physics) , environmental science , circuit diagram , computer science , potential difference , mathematics , meteorology , mechanical engineering , electrical engineering , engineering , voltage , physics , mathematical analysis
Modern instruments for assessing the characteristics of plants vital state are mainly formed by measuring the parameters of gas exchange in the leaves or are based on standard humidity sensors. However, such techniques are useless in coniferous forests and have a high cost. And they cannot be applied throughout the year in many regions due to the lack of leaves in winter. The water transport processes are the most important for researches in solving problems of predicting the fire condition of forests. Aqueous solutions are weak electrolytes. Therefore, water transport can be investigated using electrical measuring instruments. The purpose of the work was substantiating of digital device operation principle for measuring the potential difference in tree trunks as a device for studying its state. For the first time, to achieve the purpose, the analysis of temperature fluctuations during the year has carried out, a theoretical concept for the influence of temperature and humidity fluctuations on the potential difference in the tree trunks and a schematic diagram of the device have proposed.