Precision Measuring and Calibration Systems for Liquids


The most informative liquid electromagnetic parameter is its Spectral Complex Electromagnetic Conductivity (SCEC), which can be measured in seconds.

Practically every substance is changing the liquid electromagnetic parameters by creating both electrical dipoles and free charged particles.

Known liquid conductivity measurements are mostly using only its active electrostatic component. Besides, traditional liquid conductivity measurements does not allow achieving reasonable accuracy.

DVM is performing R&D on liquid SCEC for more than 10 years. Our main task is finding and describing multiple correlations between physical – chemical parameters of concrete liquid and its electrodynamic characteristics. Our already performed R&D in this field are mostly connected with concrete monitoring task, aiming creation the most precision measuring technology.

Within several investigations we were able to reach less than (0,001-0,002)%  SCEC measurements uncertainty. Below are some samples of DVM systems developed:

Precision measuring and Calibration systems for liquids

Measurements of salts admixture in sugar. δ ≤ 0.3%; Weight: 0.3 kG

δG ≤ 0.02%; measurements:              0.01uS-10S; Cell constant ~100 1/m

δG ≤ 0.02%; measurements: 0.01uS-10S; Cell constant ~100 1/m

Platinum thermometers. Scale acc. ITS-90 Range: 0-12,5: 0-125 Ohm;Nonlinearity - less than 0.0000002 Sensitivity - better than 0.00000002

Platinum thermometers. Scale acc. ITS-90 Range: 0-12,5: 0-125 Ohm;
Nonlinearity – less than 0.0000002 Sensitivity – better than 0.00000002

Up to 32 chanels for temperature, pressure, deformation, humidity and other measurements. R - 1uOhm-100MOhm, δR≤0.002%; U - 5nV-1.25V,  δU≤0.002%; K - 0.0000001-1.0, ΔK≤0.003%

Up to 32 chanels for temperature, pressure, deformation, humidity and other measurements. R – 1uOhm-100MOhm, δR≤0.002%; U – 5nV-1.25V, δU≤0.002%; K – 0.0000001-1.0, ΔK≤0.003%