Low-level Measurement of Electric Field Intensity

Low-level Measurement of Electric Field Intensity

en

The authors report on the measurement of electric Żeld intensity in biological structures. The examined problem is a quantity which can be measured remotely without touching the plant and which shows exceptional importance for in-terrain applications. The decisive aspect consists in the possibility of deciphering the information (about a living object) that may be carried by the electric Żeld. Therefore, the most vital problem is to Żnd out whether the electric Żeld will be utilizable for contactless diagnostics. The principle of the described method consists in electric charge measurement on the electrodes of a capacitive sensor, indicating the elimination of interferences and leakage currents. A theoretical analysis is performed for setting the measurement method sensitivity with respect to anticipated magnitudes of the electric field during the day in different weather conditions. The method of measurement using one test tree within the utilized tree stand is examined. Moreover, the authors propose an evaluation of other related aspects; these aspects include modification concepts for the sensor and methodology of measurement, a comparison with the theoretical model, and a direct comparison with the data provided by other laboratory or experimental techniques.

The authors report on the measurement of electric Żeld intensity in biological structures. The examined problem is a quantity which can be measured remotely without touching the plant and which shows exceptional importance for in-terrain applications. The decisive aspect consists in the possibility of deciphering the information (about a living object) that may be carried by the electric Żeld. Therefore, the most vital problem is to Żnd out whether the electric Żeld will be utilizable for contactless diagnostics. The principle of the described method consists in electric charge measurement on the electrodes of a capacitive sensor, indicating the elimination of interferences and leakage currents. A theoretical analysis is performed for setting the measurement method sensitivity with respect to anticipated magnitudes of the electric field during the day in different weather conditions. The method of measurement using one test tree within the utilized tree stand is examined. Moreover, the authors propose an evaluation of other related aspects; these aspects include modification concepts for the sensor and methodology of measurement, a comparison with the theoretical model, and a direct comparison with the data provided by other laboratory or experimental techniques.