LIQUID LEVEL DISPLACEMENT DETECTION SYSTEM AND LIQUID LEVEL DISPLACEMENT DETECTION METHOD

PROBLEM TO BE SOLVED: To provide a liquid level displacement detection system capable of monitoring abnormality of liquid level of liquid from the outside.SOLUTION: Each of liquid level displacement detection systems 1a, 1b comprises: an optical fiber cable 4 provided in a container 2; and a float 5...

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Hauptverfasser:	MUNEDA YASUHIRO, NAGAO MASARU, MIURA TOSHIAKI, IKUWA YUKIO
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY MEASURING MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL METERING BY VOLUME PHYSICS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY TESTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a liquid level displacement detection system capable of monitoring abnormality of liquid level of liquid from the outside.SOLUTION: Each of liquid level displacement detection systems 1a, 1b comprises: an optical fiber cable 4 provided in a container 2; and a float 5 which floats on liquid 3 in the container 2, is connected to the optical fiber cable 4, and pushes up or pulls down the optical fiber cable 4 and makes the optical fiber cable 4 bent, with ascent or descent of liquid level 3a. An arithmetic processing part 37 calculates attenuation 43 of reflected light 9 of light 8 for measurement transmitted into the optical fiber cable 4, and a transmission part 38 transmits an alarm or a signal when the attenuation 43 of the reflected light 9 exceeds a predetermined value.