Oil content measurement sensor and automatic three-way valve employing oil content measurement sensor for deck water drainage

The invention discloses an oil content measurement sensor and an automatic three-way valve employing the oil content measurement sensor for deck water drainage, and relates to the technical field of deck drainage. The oil content measurement sensor comprises an insulating column body, an inner electrode, a bracket, a flow channel, an outer electrode, an outer insulating layer and a mounting flange from inside to outside in sequence; the inner electrode of the sensor is tightly adhered to the outer surface of the insulating column body; the outer electrode is adhered to the inner side of the outer insulating layer; the inner electrode and the outer electrode form a coaxial cylindrical capacitor; the capacitance of the capacitor changes along with the change of an internal circulating medium. The oil content measurement sensor disclosed by the invention is high in automation degree, convenient to mount and high in detection sensitivity, and can effectively prevent marine oil pollution. 本发明公开了种油分测量传感器及应用其的甲板排水自动