CN201844976U - Water surface chlorophyll a detecting device - Google Patents
Water surface chlorophyll a detecting device Download PDFInfo
- Publication number
- CN201844976U CN201844976U CN2010206193255U CN201020619325U CN201844976U CN 201844976 U CN201844976 U CN 201844976U CN 2010206193255 U CN2010206193255 U CN 2010206193255U CN 201020619325 U CN201020619325 U CN 201020619325U CN 201844976 U CN201844976 U CN 201844976U
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- water surface
- electrically connected
- water
- chlorophyll
- control circuit
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- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The utility model relates to a water surface chlorophyll a detecting device which is characterized in that the water surface chlorophyll a detecting device comprises a fluorescent filtering system and ultraviolet light sources, which are arranged above the water surface of a flow-through cell, wherein the fluorescent filtering system is positioned over the water surface of the flow-through cell; at least two ultraviolet light sources are positioned on two sides of the fluorescent filtering system with inclination angles; a photomultiplier tube is arranged on the fluorescent filtering system; the photomultiplier tube is electrically connected with the input end of a signal amplifier of a detection control circuit; a water inlet and a water outlet are respectively arranged on the flow-through cell; an electric control valve is arranged on the water inlet of the flow-through cell; and the electric control valve is electrically connected with a flow passage controller of the detection control circuit. The detection control circuit comprises a single-chip microcomputer and is respectively and electrically connected with an A/D (analog/digital) converter, the flow passage controller, a display device and a data output end, and the A/D converter is electrically connected with the signal amplifier. The water surface chlorophyll a detecting device has reasonable structure, is not in contact with a water body, and can eliminate pollution and turbidity interference, meet long-term continuous measurement requirement and realize high accuracy.
Description
Technical field
The utility model relates to the surface water quality detection range, the particularly a kind of water surface chlorophyll a pick-up unit that can monitor easy explosive growth of harmful algae situation in the water in real time.
Background technology
The concentration of chlorophyll a has characterized and has contained what of chlorophyll biology in the water in the water, is the important content of water analysis.Because mankind's activity is to the influence of water quality, this analysis is more and more important.Traditional chlorophyll a detecting instrument particularly on-line instrument mostly is the water-immersed metering system of sensor, because the water pollution optical system makes it can not long time continuous working, and disturbed by water turbidity, accuracy in detection is low.
Summary of the invention
The purpose of this utility model is, provides a kind of rational in infrastructure, can satisfy the long-time continuous measurement requirement, the water surface chlorophyll a pick-up unit that accuracy in detection is high.
Realize that the technical scheme that the utility model purpose is taked is, a kind of water surface chlorophyll a pick-up unit, it is characterized in that: the top that it is included in the flow cell water surface is provided with fluorescence filter system and ultraviolet source, the fluorescence filter system be positioned at the flow cell water surface directly over, at least two ultraviolet sources are the both sides that the pitch angle is positioned at the fluorescence filter system, in the fluorescence filter system, photomultiplier is set, photomultiplier is electrically connected with the signal amplifier input end that detects control circuit, on flow cell, be respectively equipped with water inlet, water delivering orifice, be provided with electrically-controlled valve on the water inlet of flow cell, electrically-controlled valve is electrically connected with the stream controller that detects control circuit.
Described detection control circuit comprises that single-chip microcomputer is electrically connected with A/D converter, stream controller, display, data output end respectively, and A/D converter is electrically connected with signal amplifier.
The wavelength of described ultraviolet source is 300nm～500nm.
The saturating wavelength of light of described fluorescence filter system is 600nm～750nm.
Water surface chlorophyll a pick-up unit of the present utility model, owing to above the flow cell water surface, be provided with fluorescence filter system and ultraviolet source, the fluorescence filter system be positioned at the flow cell water surface directly over, at least two ultraviolet sources are the both sides that the pitch angle is positioned at the fluorescence filter system, the structure of photomultiplier is set in the fluorescence filter system, and it is rational in infrastructure, does not contact with water body, eliminate pollution and turbidity and disturbed, can satisfy the long-time continuous measurement requirement; Comprise that single-chip microcomputer is electrically connected with signal amplifier by A/D converter owing to detect control circuit, and single-chip microcomputer is electrically connected with stream controller, display, data output end respectively, can realize that photosignal amplifies, changes, handles and calculate and demonstration, accomplish to monitor in real time easy explosive growth of harmful algae situation in the water, detection is timely, accuracy is high.
Description of drawings
Figure is a water surface chlorophyll a pick-up unit structural representation of the present utility model.
Among the figure: 1 ultraviolet source, 2 fluorescence filter systems, 3 photomultipliers, 4 are detected control circuit, 6 water inlets, 7 water delivering orifices, 8 flow cells, 9 electrically-controlled valve by side water sample, 5.
Embodiment
The utility model is described in further detail to utilize accompanying drawing below.
With reference to figure, the top that water surface chlorophyll a pick-up unit of the present utility model is included in flow cell 8 waters surface is provided with fluorescence filter system 2 and ultraviolet source 1, fluorescence filter system 2 be positioned at flow cell 8 waters surface directly over, at least two ultraviolet sources 1 are the both sides that the pitch angle is positioned at fluorescence filter system 2, the center line and the water surface that are ultraviolet source 1 are acute angle, photomultiplier 3 is set in fluorescence filter system 2, photomultiplier 3 is electrically connected with the signal amplifier input end that detects control circuit 5, on flow cell 8, be respectively equipped with water inlet 6, water delivering orifice 7, be provided with electrically-controlled valve 9 on the water inlet 6 of flow cell 8, electrically-controlled valve 9 is electrically connected with the stream controller that detects control circuit 5.Described detection control circuit 5 comprises that single-chip microcomputer is electrically connected with A/D converter, stream controller, display, data output end respectively, and A/D converter is electrically connected with signal amplifier.The wavelength of described ultraviolet source 1 is 300nm～500nm.The saturating wavelength of light of described fluorescence filter system 2 is 600nm～750nm.
In the water surface chlorophyll a pick-up unit of the present utility model: single-chip microcomputer, A/D converter, stream controller, the display of ultraviolet source 1, fluorescence filter system 2, photomultiplier 3, electrically-controlled valve 9 and detection control circuit 5 all belong to the common components and parts commonly used in this area, are the commercially available prod.For example single-chip microcomputer adopts STR912FAW.
The testing process of water surface chlorophyll a pick-up unit of the present utility model is as follows:
A) contain chlorophyllous with the above ultraviolet source irradiation of the water surface by side water sample 4;
B) be subjected to ultraviolet ray excited generation fluorescence by the chlorophyll of side water sample 4 near surfaces, this fluorescence is filtered by the filter system on the water surface 2, removes the parasitic light of other wavelength;
C) fluorescence after the filtration enters photomultiplier 3 and converts electric signal to, and carries out photosignal amplification, conversion, processing calculating and demonstration by the concentration of chlorophyll a in the side water sample 4 by detection control circuit 5.
Claims (4)
1. water surface chlorophyll a pick-up unit, it is characterized in that: the top that it is included in the flow cell water surface is provided with fluorescence filter system and ultraviolet source, the fluorescence filter system be positioned at the flow cell water surface directly over, at least two ultraviolet sources are the both sides that the pitch angle is positioned at the fluorescence filter system, in the fluorescence filter system, photomultiplier is set, photomultiplier is electrically connected with the signal amplifier input end that detects control circuit, on flow cell, be respectively equipped with water inlet, water delivering orifice, be provided with electrically-controlled valve on the water inlet of flow cell, electrically-controlled valve is electrically connected with the stream controller that detects control circuit.
2. water surface chlorophyll a pick-up unit according to claim 1, it is characterized in that: described detection control circuit comprises that single-chip microcomputer is electrically connected with A/D converter, stream controller, display, data output end respectively, and A/D converter is electrically connected with signal amplifier.
3. water surface chlorophyll a pick-up unit according to claim 1 is characterized in that: the wavelength of described ultraviolet source is 300nm～500nm.
4. water surface chlorophyll a pick-up unit according to claim 1 is characterized in that: the saturating wavelength of light of described fluorescence filter system is 600nm～750nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206193255U CN201844976U (en) | 2010-11-18 | 2010-11-18 | Water surface chlorophyll a detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206193255U CN201844976U (en) | 2010-11-18 | 2010-11-18 | Water surface chlorophyll a detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201844976U true CN201844976U (en) | 2011-05-25 |
Family
ID=44039863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206193255U Expired - Fee Related CN201844976U (en) | 2010-11-18 | 2010-11-18 | Water surface chlorophyll a detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201844976U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103814138A (en) * | 2011-07-29 | 2014-05-21 | 霍尼韦尔阿斯卡公司 | Apparatus and method for monitoring autotroph cultivation |
-
2010
- 2010-11-18 CN CN2010206193255U patent/CN201844976U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103814138A (en) * | 2011-07-29 | 2014-05-21 | 霍尼韦尔阿斯卡公司 | Apparatus and method for monitoring autotroph cultivation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160504 Address after: Taihu international science and Technology Park in Jiangsu province Wuxi City Linghu road 214000 Wuxi national hi tech Industrial Development Zone No. 200 Chinese Sensor Network International Innovation Park building E Patentee after: Wuxi Guangda Analytical Technology Co., Ltd. Address before: 132013 Jilin Guangda Electric Power Equipment Co., Ltd., No. 2, No. 57, hi tech Zone, Jilin, Jilin Patentee before: Jilin Grand Analysis Technology Co., Ltd. |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Wuxi Guangda Analytical Technology Co., Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Jiang Dongmin Document name: Notification of Termination of Patent Right |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110525 Termination date: 20191118 |