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Water area up-conversion fluorescence vortex detection device and detection method thereof

A detection device and detection method technology, which are applied in measurement devices, fluorescence/phosphorescence, open-air water source survey, etc., can solve problems such as poor confidentiality, long delay, Doppler dispersion, etc., to improve accuracy and sensitivity, and reduce luminescence. Loss, Enhanced Detectability Effect

Pending Publication Date: 2022-02-22
DALIAN MARITIME UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] According to the shortcomings of the ultra-long wave detection, such as complex system, large power consumption, and narrow passband, and the shortcomings of the acoustic wave detection, such as slow transmission speed, long delay, serious Doppler dispersion, and poor confidentiality, and the optical detection method In the detection of turbulence in water areas, the equipment is bulky, the signal transmission and information reception are not real-time, and the technical problems are different. To provide a water area up-conversion fluorescence vortex detection device and its detection method

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  • Water area up-conversion fluorescence vortex detection device and detection method thereof
  • Water area up-conversion fluorescence vortex detection device and detection method thereof
  • Water area up-conversion fluorescence vortex detection device and detection method thereof

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Embodiment 1

[0042] Such as figure 1 As shown, the present invention provides a water area up-conversion fluorescence vortex detection device, which is a water area up-conversion fluorescence vortex detection device based on the principle of up-conversion luminescence and optics, installed on an aircraft, including a casing, a laser emitter , a nanoparticle storage bin and an image acquisition and processing system. The image acquisition and processing system includes an image acquisition module, an image processing module and an image display module.

[0043] The laser transmitter is connected to the image acquisition module, and emits infrared laser light in the direction to be detected for irradiation.

[0044] The nanoparticle storage bin is connected to the image acquisition module, and launches projectiles equipped with hydrophilic upconversion nanopowders in the direction to be detected. The projectiles blast in the designated area to release upconversion nanoparticles.

[0045] A...

Embodiment 2

[0051] Such as figure 2 Shown, on the basis of embodiment 1, the present invention provides a kind of detection method of water area up-conversion fluorescent vortex detection device, comprises the following steps carried out in order:

[0052] 1) The laser transmitter mounted on the aircraft emits infrared laser light in the direction to be detected for irradiation.

[0053] 2) The built-in magazine (nanoparticle storage bin) of the aircraft fires projectiles filled with hydrophilic upconversion nanopowders in the direction to be detected, and the projectiles blast in the designated area to release upconversion nanoparticles.

[0054] 3) The up-conversion nanoparticles emit visible light under the excitation of the infrared laser beam, presenting an optical image.

[0055] 4) The image acquisition and processing system carried by the aircraft collects optical images, which are processed to determine the turbulent conditions of the waters.

[0056] In this embodiment, the l...

Embodiment 3

[0064] On the basis of Example 2, the present invention also provides a hydrophilic Nd 3+ The preparation method of sensitized nanoparticles adopts high-temperature co-precipitation method to prepare monodisperse lanthanide ion-doped NaYF 4 Upconverting nuclear nanoparticles. Subsequently, NaYF was coated on the surface of core nanoparticles by epitaxial layer growth method. 4 inert shell. Concrete preparation steps are as follows:

[0065] 1) Synthesis of NaYF 4 :Nd 3+ ,Yb 3+ ,Er 3+ nuclear nanoparticles

[0066] (1) At room temperature (23-25°C), use a pipette to draw 3ml of OA (oleic acid), 7ml of ODE (1-octadecene), 2ml of Ln (CH 3 CO 2 ) 3 (0.2M) aqueous solution into a 50ml two-necked flask (add high-temperature magnets);

[0067] (2) Place the two-necked flask in an oil bath, set the temperature of the heating device to 130°C, and after the water in the liquid in the two-necked flask is completely evaporated, raise the temperature to 150°C and keep the temper...

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Abstract

The invention provides a water area up-conversion fluorescence vortex detection device and a detection method thereof, the device comprises a shell, a laser emitter, a nanoparticle storage bin and an image acquisition and processing system, the laser emitter emits infrared laser to a to-be-detected direction for irradiation; the nanoparticle storage bin emits bullets filled with hydrophilic up-conversion nano-powder to the to-be-detected direction, the bullets are exploded in a designated area, and up-conversion nanoparticles are released; the up-conversion nanoparticles emit visible light under the excitation of the infrared laser beam to present an optical image; the image acquisition and processing system collects optical images and processes the optical images to judge the turbulence condition of the water area. According to the invention, the effects of signal transmitting-receiving device integration and underwater turbulence visualization can be achieved, the accuracy and sensitivity of turbulence visualization imaging can be improved, and the detectability of vortex can be enhanced.

Description

technical field [0001] The invention relates to the technical field of water area turbulence detection, in particular to a water area up-conversion fluorescent eddy detection device and a detection method thereof. Background technique [0002] Turbulent flow is a special area with local non-uniform distribution of seawater density and concentration, which is ubiquitous in marine lakes. The scale of turbulent flow is widely distributed from millimeters to tens of kilometers. Ocean turbulence changes rapidly and randomly in a small range and in a short period of time. For a non-drag vehicle, once it encounters a turbulent environment, it is easy to collide with hard objects such as underwater reefs and be damaged. Therefore, realizing the detection of turbulence in the water area is of great significance for underwater vehicles, especially non-drag smart underwater vehicles, to adjust the heading in time and improve navigation safety and stability. [0003] At present, the de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C13/00G01N21/64
CPCG01C13/002G01N21/6402Y02A90/30
Inventor 付姚胡雅茜温永盛曾瑞浪李竖斌
Owner DALIAN MARITIME UNIVERSITY
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