发明名称 |
OPTICAL FIBER SENSOR APPARATUS |
摘要 |
PURPOSE:To detect the change in the physical state of a plurality of terminals by one optical main path by efficiently collecting sensor informations expanding in planar and linear state, by utilizing the wide-band property of an optical fiber and arranging a large number of sensor heads to one optical main path of a data highway. CONSTITUTION:The light pulse from a light transmitter 2 is transmitted by the optical main path due to one optical fiber of a system and branched to a receiving optical path 5 by the directional coupler 4 connected to the optical main path 3. The light pulse passing through the coupler 4 is transmitted to respective directional couplers 11a-11n by the optical main path 3 to be branched to respective branched optical paths 11a-11n. The branched light pulses are respectively supplied to optical sensors due to electro-optical crystals 13a-13n through the paths 11a-11n and directional couplers 12a-12n. Then, sensor informations expanding in planar and liner states are efficiently collected. |
申请公布号 |
JPS6382320(A) |
申请公布日期 |
1988.04.13 |
申请号 |
JP19860228626 |
申请日期 |
1986.09.26 |
申请人 |
YASKAWA ELECTRIC MFG CO LTD |
发明人 |
OTSUKA MASAO;SAITO HIDEKI;YUKANAMI KOZO |
分类号 |
G02B6/00;G01D5/26;G01D5/353;G01D21/00;G08C23/04 |
主分类号 |
G02B6/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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