HUMIDITY CAPACITIVE TRANSDUCER Russian patent published in 2007 - IPC G01N27/22 

FIELD: measuring technique.

SUBSTANCE: humidity capacitive transducer can be used when checking humidity of loose materials in chemical, ore-mining industry, construction industry etc. Humidity capacitive pickup has case made of metal outer and of dielectric internal cups, movable rod onto which rod the dielectric base is mounted together with pin electrodes mounted in it. Transducer also has motionless rod disposed inside movable rod; piston is fastened to the rod. Through openings are made inside piston, which openings have to be aligned with pin electrodes. There are also two groups of sprayers fastened to case.

EFFECT: reduced error of measurement.

2 dwg