SENSOR OF ANALYZER OF QUALITY OF MOTOR FUEL Russian patent published in 2003 - IPC

FIELD: analysis of quality of motor fuel, technological processes for production of fuel, determination of fuel brand. SUBSTANCE: sensor of analyzer of quality of motor fuel includes cylindrical external and first internal electrodes with draining holes and insulation gasket. Salient feature of invention lies in that first cylindrical internal electrode is hollow electrode and that sensor is equipped with second cylindrical internal hollow electrode mechanically coupled to first cylindrical internal hollow electrode and is electrically insulated from it by insulation bushing, metal float with calibrated value of volumetric density. Volumetric density of it is equal to boundary value of density of analyzed motor fuels. Metal float is placed in spaces of cylindrical internal electrodes and insulation bushing and can move between cylindrical first and second internal hollow electrodes or inside one of them from upper to lower rests. Sensor is also fitted with screen mounted above insulation gasket and bottom. Second cylindrical internal electrode, screen and bottom are electrically connected to cylindrical external electrode. EFFECT: automatic displacement of calibration characteristic of sensor of analyzer of quality of motor fuel with change of fuel type, protection of output signal of sensor from effect of outer electric fields in zone of its face surfaces. 2 dwg