PRESSURE SENSOR STRUCTURE AND URINAL WASHING SYSTEM USING THE SAME

PROBLEM TO BE SOLVED: To provide a pressure sensor structure that can be used as a detection means for detecting the level of urine discharged in the trap part of an urinal, which produces a harmful atmosphere. SOLUTION: A micropressure sensor part 13 detecting micropressure is provided in a sensor...

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Bibliographische Detailangaben
Hauptverfasser: ARAI HIROBUMI, ITO HIROSHI, FUJIWARA KEIICHI
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a pressure sensor structure that can be used as a detection means for detecting the level of urine discharged in the trap part of an urinal, which produces a harmful atmosphere. SOLUTION: A micropressure sensor part 13 detecting micropressure is provided in a sensor housing 40, the inside of the sensor housing 40 is divided into a pressure receiving chamber (a) and an atmospheric pressure chamber (b) by the micropressure sensor part 13, the pressure receiving chamber (a) is provided with a pressure inlet pipe 41, the atmospheric pressure chamber (b) is provided with an atmosphere vent 42, a silicon filler 45 is sealed in the pressure receiving chamber (a), and an electric circuit part (high-pass filter (HPF), setting and comparing circuit, waveform discriminating circuit, valve control circuit, alarm output circuit) connected to the micropressure sensor part 13 is hardened by a resin filler 46.