FIELD: physics.
SUBSTANCE: use for registration of weak electric fields. Essence of the invention lies in the fact that the sensitive element for detecting weak electric fields is a three-phase cavitation cell consisting of a high-viscosity hydrophobic liquid shell, in which there is a gas bubble with an outer diameter of 0.2–0.5 mm, comprising at the gas-hydrophobic liquid interface at least one water microinclusion ranging from 5 to 20 mcm, wherein cavitation cell is characterized by presence of negative charge on its surface and positive charge in water microinclusions.
EFFECT: possibility of recording weakly varying quasi-static as well as constant electric fields with field intensity of ≈3 V/cm with size of sensitive element of not more than 1 mm.
9 cl, 5 dwg
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