ELECTROCHEMICAL PICKUP Russian patent published in 2003 - IPC

FIELD: measurement technology. SUBSTANCE: invention refers to electrochemical pickups establishing concentration of dissolved gas, predominantly, oxygen. Electrochemical pickup incorporates body, chamber for electrolyte where anode and cathode mounted in insulator of cylindrical form are positioned and two gas-permeable membranes contacting one another. First membrane contacts working surface of cathode, second membrane contacts controlled medium. In correspondence with invention first gas-permeable membrane is anchored on side surface of insulator with formation of ring capillary conduit for electrolyte passage. EFFECT: increased accuracy of measurement of small concentrations of dissolved gas. 1 cl, 1 dwg