Supercharge Your Innovation With Domain-Expert AI Agents!

Underwater optical detection and imaging sensing method and system used for ocean stereo monitoring

A technology of optical detection and sensing system, applied in radio wave measurement system, measurement device, sound wave re-radiation, etc., can solve the problems of incomplete detection accuracy and high cost, and improve underwater acoustic resolution and imaging effect, The effect of meeting the needs of industrialization

Inactive Publication Date: 2016-08-17
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
View PDF0 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cost of this underwater acoustic sensing instrument is high on the one hand, and on the other hand, the detection accuracy cannot fully meet people's needs.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Underwater optical detection and imaging sensing method and system used for ocean stereo monitoring
  • Underwater optical detection and imaging sensing method and system used for ocean stereo monitoring
  • Underwater optical detection and imaging sensing method and system used for ocean stereo monitoring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] The ocean acoustic sensor (underwater acoustic sensor) is based on optical fiber interference technology. The broadband near-infrared light source passes through the optical fiber coupler with a certain splitting ratio and enters the reference arm and the measurement arm respectively. Utilizing the low-coherence characteristics of the broadband light source, high-resolution tomography is performed on the internal microstructure of the detection medium by measuring the interference signal of the backscattered light of the sample. The light emitted by the low-coherence light source is incident on a 2×2 fiber coupler, and the outgoing light is incident on the reference arm and the sample arm of the system respectively. The light from the reference arm is collimated and passes through a certain distance and is reflected by a plane mirror to p...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention proposes an underwater optical detection and imaging sensing method and system in marine stereoscopic monitoring, adopts an underwater acoustic sensor with fiber-optic Doppler weak coherence interference, and uses the change of the refractive index of water by the sound field to realize the optical interference system Medium phase control, the high spectral acquisition speed provided by the high-speed linear array CCD enables the real-time response of the interferometer to the underwater sound; the high-speed and high-resolution spectral demodulation module provides favorable conditions for the spectral analysis in the interference information, and the interference demodulation The spectrometer demodulates the underwater acoustic information in the interference spectrum, and the spectral resolution of 0.05nm substantially improves the underwater acoustic resolution and imaging effect; the multi-scale in-situ online imaging subsystem can obtain more comprehensive underwater information, making Breakthroughs can be made in the study of marine life. The improvement of the underwater optical detection and imaging sensing system of the present invention not only provides great convenience for marine research, but also meets the industrialization requirements of water quality detection.

Description

technical field [0001] The invention belongs to the technical field of underwater optical imaging, and in particular relates to an underwater optical detection and imaging sensing method and system in ocean three-dimensional monitoring. Background technique [0002] In recent years, the application of optical detection and imaging technology (including image sensor, fiber optic sensor, fluorescence and its imaging sensor, time-resolved optical imaging, frequency domain optical imaging, optical coherence tomography, etc.) in marine environmental science has developed rapidly. , because of its high sensitivity, high resolution, real-time online imaging and other advantages, it is considered to be one of the most promising subjects. [0003] Marine environmental monitoring is the basis of all marine work, and suitable underwater imaging and underwater sensing technologies are urgently needed in marine monitoring work. Underwater optical detection is a necessary means of marine...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01H9/00G01S15/89
CPCG01H9/004G01S15/89
Inventor 王岢张海军李旭涛叶允明徐晓飞
Owner HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com