Multi-parameter sensing bin for ocean, monitoring method and manufacturing method of sensing bin

Abstract

The invention discloses a multi-parameter sensing bin for oceans. The multi-parameter sensing bin is provided with three optical fiber Fabry-Perot interferometer cavity structures which are connectedin series, parameters such as temperature, pressure, salinity and the like of a seabed point to be measured can be simultaneously measured, that is, multi-parameter measurement can be performed. Basedon the high sensitivity of the Fabry-Perot interferometer, the high-precision measurement can be realized, the planning is reasonable, the structure is compact, the stability is good, the manufacturing and maintenance cost is low, and compared with the traditional measurement mode, the method has more advantages and has better application prospect. Meanwhile, the invention provides a multi-parameter monitoring method based on the submarine optical cable. The sensing bin is used as a platform to monitor multiple physical parameters of the ocean on line in real time and can adapt to the complexocean environment of the seabed, the submarine optical cable has the dual functions of communication and power supply, high-speed signal return and continuous power supply can be provided for a sensing system. In addition, the optical cable is wide in distribution, and distributed monitoring is more beneficial to achieving networked monitoring. Meanwhile, the manufacturing method is easy to implement, and it can be guaranteed that signals acquired by an external sensing module interferometer are accurate.

Description

technical field [0001] The invention belongs to the field of sensing technology, and in particular relates to a multi-parameter sensing chamber for oceans, a monitoring method and a manufacturing method of the sensing chamber. Background technique [0002] As the most important part of the global communication system, the total length of submarine optical cables has reached more than 1.3 million kilometers, covering the coastlines of most countries in the world and connecting all countries, forming a complete interconnected communication network. In particular, the Guangdong-Hong Kong-Macao Greater Bay Area adjacent to the South China Sea has multiple access points for submarine optical cables, which have played a vital role in the development of my country's communications and Internet. [0003] Fiber optic sensors have the advantages of convenient application, anti-corrosion, anti-electromagnetic interference, compact structure, good stability, and high sensitivity. They h...

AI Technical Summary

Problems solved by technology

[0004] The first is timeliness. In terms of the acquisition method of monitoring signals, especially for the monitoring of remote sea areas, most of the current data acquisition is stored in a memory card and retrieved regularly. The data can also be returned through satellites, but other Realistic conditions such as communication speed and capacity also obviously restrict the efficiency of real-time monitoring;

[0005] Secondly, due to the complexity of the marine environment, the current monitoring methods for the ocean are relatively deficient in simultaneous multi-parameter measurement. The existing multi-parameter measurement methods are generally sub-system measurement, which wastes valuable information storage resources. Need to invest more manpower and material resources

[0006] In summary, existing technologies such as mobile buoys and towed sensor arrays have deficiencies in meeting the needs of large-scale, multi-parameter, and real-time detection.

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