Depth field imaging monitoring apparatus for medium or small ocean plankton

A zooplankton and monitoring device technology, which is applied in the direction of testing moving fluid/granular solids, etc., can solve problems such as difficulty in distinguishing zooplankton types, image quality deterioration, and contrast reduction, so as to improve imaging quality, suppress scattering effects, and improve accuracy. rate effect

Inactive Publication Date: 2009-10-28
OCEAN UNIV OF CHINA
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Problems solved by technology

These beams in the imaging optical path will be scattered by suspended particles in seawater, resulting in backscattering and forward scattering effects. These scattered lights are imaged on the digital camera together with the imaging beams, resulting in blurred images and decr

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  • Depth field imaging monitoring apparatus for medium or small ocean plankton
  • Depth field imaging monitoring apparatus for medium or small ocean plankton
  • Depth field imaging monitoring apparatus for medium or small ocean plankton

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Embodiment Construction

[0015] see figure 1 , 2 As shown, the present invention is a kind of depth imaging monitoring device for small and medium-sized marine zooplankton, which includes an underwater imaging sealed cabin body 1, two depth imaging lighting sealing cabins 6 and a support frame 4; the two depth imaging lighting sealing cabins The bodies 6 face each other in the support frame 4, and the depth-of-field imaging lighting sealing cabin body 6 has built-in light-emitting diodes 5 in a rectangular array to provide illumination beams. The depth-of-field imaging lighting sealing cabin body 6 can be supported by moving the slider 8 The front and rear distances are adjusted on the frame 4. When it moves to the expected position, the moving slider 8 is fixed on the support frame 4 by the fixing bolt 7, so that the depth-of-field imaging lighting sealed cabin 6 is stably fixed on the support frame 4 Above; the underwater imaging sealed cabin body 1 is provided with an objective lens 9, a digital i...

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Abstract

The invention provides a depth field imaging monitoring apparatus for medium or small ocean plankton, which includes a underwater imaging sealed cabin, a depth field imaging illumination sealed cabin and a support frame. An LED for providing illumination beam is provided in the depth field imaging illumination sealed cabin which is fixed onto the support frame. An object lens, a digital imaging system and a digital image data collecting card are provided in the underwater imaging sealed cabin. An optical window is opened on the wall of the underwater imaging sealed cabin opposite to the depth field imaging illumination sealed cabin, and the underwater imaging sealed cabin is fixed on the support frame. The invention is capable of suppressing diffraction effect generated during transmission of non-imaging beam along the imaging optical path, greatly improving image quality of underwater images, enhancing accuracy of plankton object determination.

Description

technical field [0001] The invention relates to a marine animal monitoring device, in particular to a depth-of-field imaging monitoring device for small and medium-sized marine zooplankton. Background technique [0002] Marine zooplankton (zooplankton body length range: 200μm-4mm) occupies an extremely important position in the marine ecosystem, and is an important nutritional link between traditional food chains. Its quantity changes and spatial distribution affect the functioning of the entire marine ecosystem. , and even global climate change will play an important role. The traditional plankton on-site observation methods use simple plankton trawling or collecting water samples to detect plankton abundance or plankton mass (wet weight or dry weight). These methods have many problems and cannot meet the needs of today's plankton research. Specifically reflected in: ①Trawling reflects the sum of plankton collected in long-distance horizontal or vertical directions, and it...

Claims

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Application Information

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IPC IPC(8): G01N21/85
Inventor 于新生隋美红张凤丽靳卫卫
Owner OCEAN UNIV OF CHINA
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