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Title:
WEIGHT MEASURING ELEMENT AND WEIGHING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2010/007767
Kind Code:
A1
Abstract:
A weight measuring element (WM) has an optical fiber sensor which comprises optical fibers (20a, 20b) and a sensor unit (SP) that leaks some of the light transmitted at the interface with the optical fibers (20a, 20b), and which emits from the emission end the light which is incident on the incident end and has passed through the sensor unit (SP); a first substrate (1); and a second substrate (2) provided with an opening (2a). The optical fiber sensor is arranged between the first substrate and the second substrate, which are stacked in the vertical direction, so that the sensor unit (SP) is positioned within the region of the opening (2a). When a load is applied from above, a convex bend which projects towards the opening (2a) is produced in the sensor unit (SP) of the optical fiber sensor and in the vicinity thereof, and a loss corresponding to the load is produced in the light transmitted by the optical fiber sensor. Both light and heavy objects can be measured.

Inventors:
KAMATA, Hitoshi (1-10-1,Goryo, Daito-sh, Osaka 64, 〒5740064, JP)
鎌田 仁 (〒64 大阪府大東市御領1丁目10番1号 日本電線工業株式会社内 Osaka, 〒5740064, JP)
SUZUKI, Shigeyuki (1-10-1,Goryo, Daito-sh, Osaka 64, 〒5740064, JP)
鈴木 重行 (〒64 大阪府大東市御領1丁目10番1号 日本電線工業株式会社内 Osaka, 〒5740064, JP)
WATANABE, Kazuhiro (1-236 Tangi-cho, Hachioji-sh, Tokyo 77, 〒1928577, JP)
Application Number:
JP2009/003311
Publication Date:
January 21, 2010
Filing Date:
July 14, 2009
Export Citation:
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Assignee:
SOKA UNIVERSITY (1-236, Tangi-cho Hachioji-sh, Tokyo 77, 〒1928577, JP)
学校法人創価大学 (〒77 東京都八王子市丹木町1丁目236番 Tokyo, 〒1928577, JP)
Nihon Electric Wire & Cable Co.,Ltd. (1-10-1, Goryo Daito-sh, Osaka 64, 〒5740064, JP)
日本電線工業株式会社 (〒64 大阪府大東市御領1丁目10番1号 Osaka, 〒5740064, JP)
TAMA-TLO KABUSHIKI KAISHA (Hachioji Square Building 11F, 9-1 Asahi-cho, Hachioji-sh, Tokyo 83, 〒1920083, JP)
タマティーエルオー株式会社 (〒83 東京都八王子市旭町9番1号 八王子スクエアビル11階 Tokyo, 〒1920083, JP)
KAMATA, Hitoshi (1-10-1,Goryo, Daito-sh, Osaka 64, 〒5740064, JP)
鎌田 仁 (〒64 大阪府大東市御領1丁目10番1号 日本電線工業株式会社内 Osaka, 〒5740064, JP)
International Classes:
G01G9/00
Domestic Patent References:
WO1997048994A1
Foreign References:
JP2007071613A
JPH05172615A
JP2007187578A
JP2006337318A
Attorney, Agent or Firm:
SATO & ASSOCIATES (Nishi-Shinjuku Mitsui Building 18F, 24-1 Nishi-Shinjuku 6-chome, Shinjuku-k, Tokyo 23, 〒1600023, JP)
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