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Image instrument for sand suspended in water

An imager and suspended sand technology, applied in instruments, scientific instruments, particle suspension analysis, etc., can solve problems such as large errors, inability to use high-concentration suspended sand measurement, cumbersome calculations, etc.

Inactive Publication Date: 2005-07-27
STATE OCEAN TECH CENT
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Problems solved by technology

[0008] (1) There is a complex functional relationship between the size of the speckle and the size of the actual suspended sand particles, the calculation is cumbersome and the error is large;
[0009] (2) For high-concentration suspended sand, the speckle pattern turns red, and the particles cannot be distinguished. Therefore, it cannot be used for the measurement of high-concentration suspended sand.
Therefore, the above-mentioned laser particle size analyzer cannot be used to measure suspended sediment particles in high-concentration suspended sediment seawater

Method used

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  • Image instrument for sand suspended in water
  • Image instrument for sand suspended in water
  • Image instrument for sand suspended in water

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Embodiment Construction

[0044]Specific embodiments of the present invention will now be described in conjunction with the accompanying drawings. image 3 It shows the measurement principle of the suspended sediment imager in water of the present invention. Figure 4 and Figure 5 It shows the structure of the underwater machine of the underwater suspended sand imager of the present invention.

[0045] As shown in the figure, the underwater machine of the underwater suspended sand imager has a cylindrical structure. The movement inserted into the cylinder casing sleeve 27 is fixed under the end cover 19, including a microscope 17, a CCD camera 18, a control circuit board 24, a battery box 23 and a support frame 25. The front end of the microscope 17 is fixed on the end cover 19, and the other end is connected with the CCD camera 18. The outside of the end cover 18 corresponding to the microscope 17 front end is provided with a sampling mechanism, the lower end of the CCD camera 18 is fixed on the b...

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Abstract

A pixel machine is composed of underwater part including microscope, CCD camera and control circuit; sampling mechanism including rotor plate, stator plate, LED optical source and linear motor as well as abovewater part of computer. It works as using CCD camera to short down digital image of thin water layer containing suspension sand between rotor and stator plates, then sensing the image to abovewater computer to work out suspension sand concentration and particle diameter in seawater with accuracy of minus or plus 5%.

Description

technical field [0001] The invention relates to a marine measuring instrument, in particular to an instrument for on-site measurement of the distribution of suspended sand particles in seawater and the concentration of suspended sand in seawater. Background technique [0002] The real-time measurement of suspended sand particles in seawater provides important environmental conditions for marine environmental monitoring, coastal engineering construction, channel dredging, and sediment transport research. The quality of seawater and the reliability and service life of underwater structures such as offshore platforms, port constructions, and underwater pipelines are all related to the state of suspended sand in the water. Therefore, real-time measurement of the distribution and concentration of suspended sediment in seawater, and the study of its characteristics and laws are of great significance for marine environmental protection and marine engineering development. [0003] ...

Claims

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Application Information

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IPC IPC(8): G01N1/10G01N15/02G01N15/06G01N21/84
Inventor 于连生宋家驹唐宏寰
Owner STATE OCEAN TECH CENT
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