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1. 发明申请

WO2003048746A1 SENSOR AND METHOD FOR DETECTING FIBER OPTIC FAULTS 审中-公开
标题翻译：用于检测光纤光学故障的传感器和方法
公开(公告)号：WO2003048746A1
公开(公告)日：2003-06-12
申请号：PCT/US2002/037471
申请日：2002-11-21
申请人： HONEYWELL INTERNATIONAL INC.
发明人： LANGE, Charles , ANG, Dick , ANSON, Scott
IPC分类号： G01N21/41
CPC分类号： G01M11/333 , G01D5/35325 , G01K11/32 , G01M11/331
摘要： A fiber optic fault detector and generic fiber optic sensor system (100)for detecting breaks in an optical fiber using a low coherence interferometric technique. The system comprises a light source (102) configured to produce light traveling along the optical path, a modulator optically coupled to the light source configured to modulate at least a portion of the light as a function of a modulation signal (128), a detector optically coupled to the modulator configured to produce a detector output based upon a sensed intensity of the light, and an electronic array configured to receive the detector output and determine the optical fault. The low coherence interferometric technique allows for detection of a fault in the fiber with a minimal amount of test equipment and with higher measurement sensitivity and resolution. The system may alternatively include a transducer, positioned in place of the fiber under test (150), having a response which changes in reflective or optical path length. The system can be used in a LIDAR system, wherein telescope optics are used in place of the fiber under test (150), to transmit light and collect light scattered from objects or from the air.
摘要翻译：一种光纤故障检测器和通用光纤传感器系统（100），用于使用低相干干涉技术检测光纤中的断裂。该系统包括被配置为产生沿光路行进的光的光源（102），光学耦合到光源的调制器，被配置为根据调制信号（128）调制至少一部分光，检测器光学耦合到调制器，被配置为基于感测的光强度产生检测器输出，以及电子阵列，其被配置为接收检测器输出并确定光学故障。低相干干涉技术允许用最小量的测试设备和更高的测量灵敏度和分辨率来检测光纤中的故障。替代地，该系统可以包括位于被测纤维（150）上的换能器，其具有反射或光程长度变化的响应。该系统可以用在LIDAR系统中，其中使用望远镜光学器件代替被测光纤（150），以透射光并收集从物体或从空气散射的光。

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