METHOD FOR MAKING PICKUP FOR MEASURING CRITICAL LEVEL OF ELECTRICALLY CONDUCTIVE MATERIALS Russian patent published in 2003 - IPC

FIELD: measuring technique, namely manufacture of apparatuses for controlling level of electrically conductive liquid and loose materials. SUBSTANCE: method comprises steps of making insulator separating outer and inner electrodes; assembling electrodes and insulator; making helical grooves onto joined surfaces of electrodes; pressing electrode-reinforced unit and simultaneously molding insulator with helical grooves on joined surfaces between electrodes at supplying molding plastics to cavity restricted by joined surfaces of electrodes. EFFECT: lowered cost of pickup and labor consumption at making it. 4 cl, 3 dwg