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公开(公告)号:US07157691B2
公开(公告)日:2007-01-02
申请号:US10362863
申请日:2001-08-23
Applicant: Jirapong Lim , Qingping Yang , Phillip Richard Jackson , Barry Edward Jones
Inventor: Jirapong Lim , Qingping Yang , Phillip Richard Jackson , Barry Edward Jones
CPC classification number: F15B13/0438 , F16K31/00 , G01D5/35316
Abstract: Operation of a power-by-light valve (15) by a source (11) along an optical fibre (13) is monitored by means of optical sensors (14) from which light passes back along fibre (13) to monitoring and processing units (16, 17). The sensors (14) include fibre bragg gratings (41, 43) for detecting differential pressure across diaphragms (42) and for detecting temperature. At the input end, an optical coupler (12) supplies sensor signals to units (16, 17) which can control source (11) via a signal (32).
Abstract translation: 通过沿光纤(13)的光源(11)的光功率阀(15)的操作通过光学传感器(14)来监控,光学传感器(14)从光纤(13)沿着光纤(13)返回到监视和处理单元 (16,17)。 传感器(14)包括用于检测横跨隔膜(42)的差压并用于检测温度的光纤布拉格光栅(41,43)。 在输入端,光耦合器(12)将传感器信号提供给可经由信号(32)控制源(11)的单元(16,17)。