Fiber-Optic Cable Submersion Detection via Vibration Analysis
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing detection systems for fiber-optic cables laid outdoors cannot detect submersion before water enters the cable, leading to potential degradation of the optical fiber.
Innovation Solution
A detection system that includes a fiber-optic cable capable of detecting vibration, a receiving means to receive optical signals with detected vibrations, and a detection means to identify submersion based on the vibration patterns in the optical signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an optical fiber is laid outdoors for monitoring purposes, then the optical fiber can detect environmental conditions, but the fiber-optic cable is exposed to submersion in rain water which may lead to water entry and degradation of the optical fiber
Solution Approach 1:
The system performs preliminary detection of submersion conditions before water can penetrate into the fiber-optic cable. By continuously monitoring vibration patterns and detecting the characteristic changes that occur when the cable becomes submerged, the system enables preventive maintenance actions to be taken before water entry and fiber degradation occur.
2Measurement precision
If existing detection techniques are used, then general environmental monitoring is possible, but submersion detection before water entry cannot be achieved
Solution Approach 1:
The system utilizes mechanical vibration characteristics of the fiber-optic cable as the detection mechanism. When the cable is submerged in water, the vibration patterns change due to the different mechanical properties of water compared to air. By analyzing these vibration pattern changes using optical sensing techniques, the system can precisely detect submersion conditions before water enters the cable.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables the detection of submersion before water enters the fiber-optic cable, thereby preventing degradation of the optical fiber and allowing for timely maintenance.
Implementation Method 1
an optical fiber sensing technique for monitoring a surrounding environment of an optical fiber by using the optical fiber as a sensor
Data Source
AI summary
In order to provide a detection device that is capable of detecting the submersion of a fiber-optic cable in water before water penetrates the interior of the fiber-optic cable, a detection system 1 comprises: a vibration-detecting fiber-optic cable 20; a receiving means 11 that receives an optical signal including vibrations detected by the fiber-optic cable 20; and a detection means 12 that detects submersion of the fiber-optic cable in water on the basis of the vibrations included in the optical signal.