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A measuring device, measuring system and method for water turbidity

A measuring device and water turbidity technology, applied in the direction of transmittance measurement, scattering characteristic measurement, etc., to achieve stable performance, improve detection sensitivity, and simplify the measurement system

Active Publication Date: 2017-01-11
NANJING UNIV OF INFORMATION SCI & TECH
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a water turbidity measurement device, measurement system and method that combines the light scattering method and the transmission method, to solve the error of turbidity measurement caused by the unstable light source, and to reduce the single scattering method or transmission method in the scope of their respective blind areas, to expand the range

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  • A measuring device, measuring system and method for water turbidity
  • A measuring device, measuring system and method for water turbidity
  • A measuring device, measuring system and method for water turbidity

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Embodiment Construction

[0020] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0021] The present invention reduces the error caused by light source shaking by using the same light source, and at the same time adopts the scattering and transmission ratio method to reduce the error of the scattering method caused by too high turbidity and the error of the transmission method caused by too low turbidity.

[0022] Such as figure 1 As shown, a water turbidity measurement device includes a light source 1, a beam splitter 2, a first plane mirror 3, a second plane mirror 4, a transparent measuring tank 5, a first lens 6, a s...

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Abstract

The invention discloses a water turbidity measuring device. The water turbidity measuring device comprises a light source, a light splitting module, a transparent measuring trough and two photoelectric detectors. The light source is used for emitting a monochromatic light beam to the light splitting module, the light splitting module is used for splitting the monochromatic light beam into two light beams in known light intensity proportion, the light beams perpendicularly irradiate a detecting area of the transparent measuring trough and are intersected within the detecting area, and the photoelectric detectors are arranged on extension lines of the light beams in the incidence direction and on the other side of the transparent measuring trough. The water turbidity measuring device, system and method provides a single-light source and bi-light-path turbidity measuring scheme, diffused light and transmission light can be measured at the same time, measuring error caused by instability of the light source is effectively reduced, and after long-term use of the water turbidity measuring device, performance is kept stable, a blind zone is reduced and measuring span is enlarged.

Description

technical field [0001] The invention relates to a water turbidity measurement device, measurement system and method based on an optical method, and belongs to the technical field of liquid turbidity measurement. Background technique [0002] The turbidity of water is an optical effect in water samples, which refers to the degree of transparency of water samples caused by the scattering and absorption of light by suspended solid particles and impurities in water samples. In recent years, with the improvement of material living standards, people pay more and more attention to health, and correspondingly, the requirements for water quality also increase. Turbidity is an important measurement scale for detecting water quality, and the accuracy of its measurement plays a vital role in the detection of water quality. [0003] According to the international standard ISO7027 for turbidity measurement and the US environmental protection standard EPA180.1, the measurement of turbidit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/59G01N21/51
Inventor 常建华伍煜李慧凝黄刚殷政
Owner NANJING UNIV OF INFORMATION SCI & TECH
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