електрична провідність

STUDY OF THE METROLOGICAL CHARACTERISTICS OF CONDUCTIVITY SENSORS

Conductivity measurement is a universal method of process control. Measurement is fast and straightforward, and most modern sensors only require little maintenance. The measured conductivity value is applied to obtain different assumptions about what happens in the substance, so such measurements are relevant when controlling technological processes and products in various industries (e.g., food, pharmaceutical). The main metrological characteristics of sensors for measuring conductivity LDL100, LDL200 are analyzed in the article.

Geoelectric parameters of upper mantle in western Ukraine and around the observatory Pleschinitsa

The results of one-dimensional inversion of generalized curves of magneto-telluric and magneto-variational soundings in south-western region of the East European platform are shown. Existence of a conductive layer at depths exceeding 600 km is confirmed in large parts of Ukraine and Belarus. The resistance of upper mantle within the territory of Belarus at depths of 250-400 km is about 2 times lesser than in Ukraine, and is about 20 Ohmm in Belarus and 50 Ohmm in Ukraine.