APPARATUS FOR TESTING LIQUIDS QUALITY IN PARTICULAR EDIBLE OIL, COOKING FACILITY Russian patent published in 2008 - IPC G01N33/03 G01N33/02 A47J37/12 

FIELD: food industry.

SUBSTANCE: apparatus comprises sensor designed with at least one pair of separated electrodes. Sensor is drowned into liquid for measurements. Electrodes and liquid measured form capacitive element with capacity changing depending on dielectric permittivity of liquid measured. Basically electrodes reach the same plane, and liquid surrounds both surfaces of electrodes from any plane side. Electrode is attached to substrate in such a way that liquid flows through plane. Sensor generates a signal that provides assessment of liquid quality. Apparatus can be connected to any cooking facility.

EFFECT: reduction of parasitic insects influence on capacitive resistance of substrate at high temperatures.

50 cl, 7 dwg