стандартний зразок

The paper analyzes the method of identifying the maturity of concrete based on the results of measuring the temperature of concrete during its maturation using a temperature sensor built into the concrete. This method controls the maturity of concrete indirectly. The authors propose a method of controlling the maturity of concrete based on the results of direct measurement of its electrical parameters using a three-electrode capacitive sensor built into the concrete.

The paper proposes a method of identification of mineral waters by components of their immittance. The active and reactive components of the admittances are selected as such components. We received the results of experimental researches on components of admittance of mineral waters of different types in the frequency range of the test signal. Experimental researches were performed on real samples of mineral waters. Analysis of the results showed the following. Among all types of samples, Polyana Kvasova water differs significantly in electrical parameters.