基本信息:
- 专利标题: OPTICAL FIBER COMMUNICATIONS WITH COMPOSITE STRUCTURAL MONITORING
- 专利标题(中):光纤通信与复合结构监测
- 申请号:PCT/US2017/030762 申请日:2017-05-03
- 公开(公告)号:WO2017196599A1 公开(公告)日:2017-11-16
- 发明人: EVANS, David, W.
- 申请人: NORTHROP GRUMMAN SYSTEMS CORPORATION
- 申请人地址: 2980 Fairview Park Drive Falls Church, VA 22042-4511 US
- 专利权人: NORTHROP GRUMMAN SYSTEMS CORPORATION
- 当前专利权人: NORTHROP GRUMMAN SYSTEMS CORPORATION
- 当前专利权人地址: 2980 Fairview Park Drive Falls Church, VA 22042-4511 US
- 代理机构: MILLER, John, A.
- 优先权: US15/153,565 20160512
- 主分类号: G01M5/00
- IPC分类号: G01M5/00 ; G01L1/24
摘要:
A method for detecting defects in a composite structure, such as in an aircraft structure, that includes sending an optical signal down an optical fiber embedded in the composite structure and analyzing the optical signal at a detector. If it is determined that the optical signal is turning on and off or an increase in the bit error rate is occurring at the detector, the composite structure may be delaminating or the composite structure may be somehow damaged. If it is determined that the composite structure is damaged, the optical signal can be sent down a different optical fiber that may not be at a location where the composite structure is damaged, and a continuous beam of light can be sent down the optical fiber that is at the damaged part of the composite structure to determine whether the damage is increasing.
摘要(中):
一种用于检测复合结构中的缺陷的方法,例如在飞行器结构中,其包括沿着嵌入复合结构中的光纤向下发送光信号并且在检测器处分析光信号。 如果确定光信号开启和关闭或在检测器处出现比特差错率的增加,则复合结构可能分层,或者复合结构可能以某种方式损坏。 如果确定复合结构被损坏,则可以将光信号沿着可能不在复合结构被损坏的位置处的不同光纤向下发送,并且可以沿光纤向下发送连续光束, 位于复合结构的受损部位,以确定损伤是否在增加。 p>
IPC结构图谱:
G | 物理 |
--G01 | 测量;测试 |
----G01M | 机器或结构部件的静或动平衡的测试;未列入其他类目的结构部件或设备的测试 |
------G01M5/00 | 结构部件弹性的测试,例如,桥梁、机翼的挠曲的测试 |