Nec corporation (20240134077). FIBER SENSING SYSTEM, RELAYING APPARATUS, AND FIBER SENSING METHOD simplified abstract
Contents
- 1 FIBER SENSING SYSTEM, RELAYING APPARATUS, AND FIBER SENSING METHOD
- 1.1 Organization Name
- 1.2 Inventor(s)
- 1.3 FIBER SENSING SYSTEM, RELAYING APPARATUS, AND FIBER SENSING METHOD - A simplified explanation of the abstract
- 1.4 Simplified Explanation
- 1.5 Potential Applications
- 1.6 Problems Solved
- 1.7 Benefits
- 1.8 Potential Commercial Applications
- 1.9 Possible Prior Art
- 1.10 Original Abstract Submitted
FIBER SENSING SYSTEM, RELAYING APPARATUS, AND FIBER SENSING METHOD
Organization Name
Inventor(s)
Minoru Kobayashi of Tokyo (JP)
FIBER SENSING SYSTEM, RELAYING APPARATUS, AND FIBER SENSING METHOD - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240134077 titled 'FIBER SENSING SYSTEM, RELAYING APPARATUS, AND FIBER SENSING METHOD
Simplified Explanation
The fiber sensing system described in the patent application includes a submarine cable and a series of relaying apparatuses connected to each other via the cable. Each relaying apparatus consists of a DAS interrogator connected to the next apparatus through a sensing optical fiber in the cable, and a terminator connected to the previous apparatus via the same sensing optical fiber. The DAS interrogator emits probe light into the sensing optical fiber, while the terminator terminates the probe light sent from the DAS interrogator in the preceding apparatus. The DAS interrogator then receives backscattered light from the sensing optical fiber and extracts DAS data from it.
- Submarine cable-based fiber sensing system
- Relaying apparatuses connected in series via the submarine cable
- DAS interrogator and terminator in each relaying apparatus
- DAS interrogator emits probe light into sensing optical fiber
- Terminator terminates probe light in the preceding apparatus
- DAS interrogator receives backscattered light and extracts DAS data
Potential Applications
The technology could be used in underwater monitoring systems, structural health monitoring of offshore structures, and security applications in sensitive underwater areas.
Problems Solved
This technology allows for distributed acoustic sensing along long distances underwater, enabling real-time monitoring and detection of events or disturbances.
Benefits
The system provides continuous monitoring over large areas, reduces the need for frequent manual inspections, and enhances the overall safety and security of underwater environments.
Potential Commercial Applications
Potential commercial applications include oil and gas industry for pipeline monitoring, marine research for underwater acoustic studies, and defense sector for underwater surveillance.
Possible Prior Art
One possible prior art could be the use of distributed acoustic sensing systems in land-based applications for monitoring pipelines or railways.
Unanswered Questions
How does the system handle signal interference in underwater environments?
The patent application does not provide specific details on how the system deals with signal interference caused by underwater conditions such as temperature variations or marine life activity.
What is the expected maintenance schedule for the relaying apparatuses in the system?
The patent application does not mention the maintenance requirements or schedule for the relaying apparatuses connected along the submarine cable.
Original Abstract Submitted
a fiber sensing system according to the present disclosure includes a submarine cable, and a plurality of relaying apparatuses being connected in series to one another via the submarine cable. the relaying apparatus includes a das interrogator being connected to a relaying apparatus at a subsequent stage via a sensing optical fiber in the submarine cable, and a terminator being connected to a relaying apparatus at a preceding stage via the sensing optical fiber. the das interrogator outputs probe light to the sensing optical fiber. the terminator terminates probe light being output from the das interrogator in the relaying apparatus at the preceding stage to the sensing optical fiber. the das interrogator receives backscattered light of probe light from the sensing optical fiber, and acquires the das data from the received backscattered light.
