用于物理地测量环境和操作条件的方法和装置
By using low-frequency and high-frequency sampling frequencies combined with blind source separation technology on a single optical fiber, the problem of insufficient measurement accuracy in complex structures is solved, and the effect of simultaneously measuring temperature and deformation on a single optical fiber is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SAFRAN SA
- Filing Date
- 2021-06-15
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, when using fiber optic devices to measure the temperature and deformation of complex structures, multiple optical fibers and Bragg gratings are required, and the measurement accuracy at the same location is insufficient, making it impossible to effectively distinguish the effects of temperature and deformation.
Using a single optical fiber and a single Bragg grating, and combining low-frequency and high-frequency sampling with blind source separation technology, the measurement signals of temperature and deformation are separated by frequency analysis and higher-order statistics, enabling simultaneous measurement of temperature and deformation.
It reduces the number of optical fibers and Bragg gratings, improves measurement accuracy at the same location, and can simultaneously measure temperature and deformation, making it suitable for monitoring temperature and deformation in complex structures.
Smart Images
Figure CN115812141B_ABST