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Device and method for quickly measuring light attenuation coefficient

A measuring device and attenuation coefficient technology, applied in the field of optical attenuation measuring devices, can solve the problems of complex equipment and high cost

Inactive Publication Date: 2013-12-04
HARBIN INST OF TECH AT WEIHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] At present, foreign countries use dual-channel light to measure the light attenuation rate in water. One channel fully absorbs the scattered light, and the other channel fully reflects the scattered light. After that, the difference between the two channels is used to calculate the attenuation coefficient of light in water. measurement, but its equipment is more complicated and the cost is higher

Method used

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  • Device and method for quickly measuring light attenuation coefficient

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Embodiment

[0038] As shown in the attached figure, a measuring device for rapidly measuring light attenuation coefficient includes two parts: a measuring device and a data processing system.

[0039] The measuring device includes a casing 5 on which several water inlet and outlet holes 6 are arranged. In this embodiment, the housing is made of light-proof material, which effectively avoids the interference of external stray light on the entire measurement process. Similarly, the water inlet and outlet holes 6 on the casing are arranged on both sides of the casing 5 to ensure that the water flow direction of the water flowing from the water inlet and outlet holes 6 is basically parallel to the emission direction of the light, so that the influence of the water flow on the light reduced to a minimum. A plurality of water inlet and outlet holes 6 are symmetrically arranged on both sides of the casing 5, so as to ensure the smooth flow of water. The diameter of each water inlet and outlet ...

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Abstract

The invention discloses a device for quickly measuring a light attenuation coefficient. The device is characterized by comprising a measurement device and a data processing system, wherein the measurement device comprises a shell, wherein a plurality of water inlets and outlet holes are arranged on the shell; an imaging system is arranged at one end in the shell; an optical lighting system is arranged at the periphery of the imaging system; a target is arranged at the other end of the shell; the data processing system comprises a data processing device; the imaging system is connected with the data processing system through a signal line; the data processing device is a computer; and data processing software is installed in the computer. Due to adoption of the technical scheme, compared with the prior art, in direction of the light attenuation coefficient of water at a fixed position in any water body, the device can detect has the advantages of low environment requirement, easiness in test, stable system, portability, simpleness and feasibility.

Description

technical field [0001] The invention belongs to the field of light attenuation measuring devices, in particular to a measuring device for quickly measuring light attenuation coefficients. Background technique [0002] In recent years, there has been a closer relationship between optics and water than before. From water pollution detection to laser detection, underwater sensing, etc., it can be said that there are underwater optics in various fields such as military, industry, and agriculture. application. However, the biggest problem affecting the application of underwater light is the attenuation coefficient of light by water bodies. At the same time, the attenuation coefficients of water bodies in different locations are also very different at different times, so an accurate and gradual test system and method are expected. [0003] The attenuation coefficient of water body to light directly reflects the attenuation degree of light in water, and from another aspect, it ref...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/17
Inventor 田兆硕崔子浩王静刘立宝徐天赐付石友王骐
Owner HARBIN INST OF TECH AT WEIHAI
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