{"title":"Development of Vibration Sensor with Wide Frequency Range Based on Condenser Microphone -Estimation System for Flow Rate in Water Pipes-","authors":"Hironori Kakuta, Kajiro Watanabe, Yosuke Kurihara","volume":70,"journal":"International Journal of Mechanical and Mechatronics Engineering","pagesStart":2267,"pagesEnd":2273,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/8417","abstract":"
Water leakage is a serious problem in the maintenance of a waterworks facility. Monitoring the water flow rate is one way to locate leakage. However, conventional flowmeters such as the wet-type flowmeter and the clamp-on type ultrasonic flowmeter require additional construction for their installation and are therefore quite expensive. This paper proposes a novel estimation system for the flow rate in a water pipeline, which employs a vibration sensor. This assembly can be attached to any water pipeline without the need for additional high-cost construction. The vibration sensor is designed based on a condenser microphone. This sensor detects vibration caused by water flowing through a pipeline. It is possible to estimate the water flow rate by measuring the amplitude of the output signal from the vibration sensor. We confirmed the validity of the proposed sensing system experimentally.<\/p>\r\n","references":"[1] A. Shiklomaov,\u201dWorld Water Resources And Their Use a joint\r\nSHI\/UNESCO product\u201d, Scientific Leader an Editor State Hydrological \r\nInstitute (SHI), St. Petersburg, 1999\r\n[2] Bureau of Waterworks Tokyo Metropolitan\r\nGovernment,