Water quality monitoring device and method

A water quality monitoring and water quality technology, which is applied in the field of water quality monitoring devices, sensors for remote real-time automatic monitoring of sewage and natural water quality chromaticity, can solve the difficulties of real-time automatic monitoring and alarm, poor ability to resist liquid disturbance, and measurement system Complicated optical paths and other issues, to achieve the effect of easy operation and maintenance, strong ability to interfere with on-site factors, and low cost

Inactive Publication Date: 2005-10-05
BEIJING NORMAL UNIVERSITY
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Problems solved by technology

This kind of sensor can measure chromaticity more accurately and can carry out on-site automatic measurement, but the color-sensitive sensor used needs three photocells covered with optical filters, the optical path of the measurement system is more complicated, the light source consumes a lot of power, and it is resistant to liquid disturbance and others. The ability to interfere with on-site factors is poor, and there are many difficulties in real-time automatic monitoring and alarming of sewage or natural water (especially running water) water quality in an unattended site

Method used

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  • Water quality monitoring device and method
  • Water quality monitoring device and method
  • Water quality monitoring device and method

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Embodiment Construction

[0018] When the present invention is implemented, the optical probe is placed in the monitored water or the water pipe, and the monitored water can enter the optical passage in the optical probe. The light emitted by two light sources with specific peak wavelengths enters the probe through the input optical fiber of the optical probe. After passing through the monitored water, the signal light is drawn out by the output optical fiber of the optical probe, and then detected by the semiconductor optical wavelength detector.

[0019] The two light sources with specific peak wavelengths can be two semiconductor light emitting diodes or two semiconductor laser diodes or one ultraviolet lamp plus two narrow-band optical filters. If light-emitting diodes are used as light sources, narrow-band optical filters may or may not be added between the light-emitting diodes and the optical probe;

[0020] Two channels of light with specific peak wavelengths pass through the two-in-one fiber c...

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Abstract

The invention discloses a new water quality monitor device and its technique. It comprises a optic probe with two light source of two determined wave length and signal input output optic fiber, and a semiconductor light wave length probe. The optic probe is put in the water and or in the water tube. The two light rays of different wave length goes into the probe through light coupling device, passing through the monitoring water, then the penetrating light is lead out to the optic probe single output optic fiber and surveyed by the semiconductor light wave length probe. Above water quality survey device and the technique is adaptive to remote real-time auto water quality and chroma, turbidity survey. It has water flow, weather or other factor resistance, and low energy consuming, easy operation and handily amendment, simple structure and low cost.

Description

1. Technical field [0001] The invention relates to a water quality monitoring device and method, in particular to a sensor technology and method suitable for remote real-time automatic monitoring of the chromaticity of sewage and natural water, and belongs to the technical field of environmental monitoring. 2. Background technology [0002] An urgent problem facing water pollution prevention and control is how to automatically monitor in real time whether the wastewater of the sewage discharge enterprises meets the standard discharge, and conduct timely automatic monitoring and alarm for the incidents of excessive discharge of wastewater and sudden pollution of water resources, so that the environmental protection supervision department can control water according to law , Timely control and eliminate the consequences of accidents. The reason for this is that some polluting enterprises, out of consideration of their own economic interests, or have a weak sense of responsibil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/33
Inventor 韩德俊
Owner BEIJING NORMAL UNIVERSITY
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