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Water Sci Technol. 2009;60(9):2291-9. doi: 10.2166/wst.2009.654.

Development of an optical fiber flow velocity sensor.

Author information

1
Engineering Department, Tokyo Metropolitan Sewerage Service Co., Ltd., 2-6-2 Ootemati, Chiyoda-ku Tokyo, 100-8699, Japan. to-harada@tgs-sw-co.jp

Abstract

A new optical fiber flow velocity sensor was developed by using an optical fiber information network system in sewer drainage pipes. The optical fiber flow velocity sensor operates without electric power, and the signals from the sensor can be transmitted over a long distance through the telecommunication system in the optical fiber network. Field tests were conducted to check the performance of the sensor in conduits in the pumping station and sewage pond managed by the Tokyo Metropolitan Government. Test results confirmed that the velocity sensor can be used for more than six months without any trouble even in sewer drainage pipes.

PMID:
19901460
DOI:
10.2166/wst.2009.654
[Indexed for MEDLINE]

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