DEVICE FOR MEASURING PHYSICAL PROPERTIES OF LIQUID Russian patent published in 2006 - IPC G01N22/00 G01R27/26 

FIELD: investigating or analyzing materials.

SUBSTANCE: device comprises sensor that is made of a section of long line composed of metallic cylinder and conductor arranged inside the cylinder and parallel to it and electronic unit for exciting electromagnetic oscillations in the section of long line and measuring resonance frequency. The first end of the inner conductor and metallic cylinder are connected with the electronic unit. The inner conductor is U-shaped, and reactive resistance is connected between the second end of the conductor and metallic cylinder. The inner U-shaped conductor may be coated with dielectric shell. The plate that seals the measuring space is mounted at the top end of the long line between its conductors and parallel to them.

EFFECT: enhanced precision.

2 cl, 8 dwg