CN202351172U - Laser water quality detector - Google Patents
Laser water quality detector Download PDFInfo
- Publication number
- CN202351172U CN202351172U CN2011204374706U CN201120437470U CN202351172U CN 202351172 U CN202351172 U CN 202351172U CN 2011204374706 U CN2011204374706 U CN 2011204374706U CN 201120437470 U CN201120437470 U CN 201120437470U CN 202351172 U CN202351172 U CN 202351172U
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- CN
- China
- Prior art keywords
- water quality
- semiconductor laser
- light source
- laser
- photodetector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
A laser water quality detector is composed of a light source controller, a semiconductor laser, a sample reservoir, a photoelectric detector and a data collector. The light source controller controls luminous intensity and frequency of the semiconductor laser by controlling injection current and temperature of the semiconductor laser. After light emitted by the semiconductor laser is absorbed by a water quality sample in the sample reservoir, the light is received by the photoelectric detector and converted to an electric signal which is input to the data collector. Water quality is detected by the data collector according to luminous intensity changes before and after absorption of the water quality sample.
Description
Technical field
The utility model relates to a kind of laser water quality testing meter, relates in particular to a kind of pick-up unit that utilizes transmitted intensity to carry out water quality detection.
Background technology
Material molecule absorbs or the architectural feature of situation such as the wavelength of emission spectrum, intensity, polarization state and this material has intrinsic relation under various conditions.The molecular structure of different material is different, corresponding to differing absorption spectrum; With a kind of material concentration not simultaneously, the absorption intensity in same absorption peak position is not different.Therefore, to the degree of absorption of special wavelength light, just can confirm the composition and the concentration of this material in the water through a certain material in the detection water.At present, water quality testing meter generally comprises light source, sample cell, three parts of photodetector, and the light that light source sends is received by photodetector after water sample absorbs, and the intensity variation before and after absorbing according to water sample is carried out water quality detection.At present; Light source generally adopts Halogen lamp LED or diode, because the spectral range of Halogen lamp LED or led lighting is wide, effectively luminous power is low; Cause the intensity variation after water sample absorbs little; Make troubles to input, and be difficult to avoid the interference of other composition in the water, thereby reduce the sensitivity of water quality detection.
Summary of the invention
The utility model provides a kind of laser water quality testing meter, and this device is light source with the semiconductor laser, band width, and effectively luminous power is high, can obtain very high detection sensitivity.
The utility model solves the technical scheme that its technical matters adopted: the laser water quality testing meter is made up of light source controller, semiconductor laser, sample cell, photodetector, data acquisition unit.Light source controller connects the control end of semiconductor laser, and photodetector connects data acquisition unit, and semiconductor laser, sample cell, photodetector are on same straight line.Light source controller is controlled the luminous intensity and the frequency of semiconductor laser through the injection current and the temperature of control semiconductor laser; After the sending light and absorb through the water sample in the sample cell of semiconductor laser, received and converted to electric signal by photodetector, this signal is input to data acquisition unit; Detect water quality by data acquisition unit according to the intensity variation that water sample absorbs front and back.
The beneficial effect of the utility model is, and is simple in structure, easy to use, detection sensitivity is high.
Description of drawings
Accompanying drawing 1 is the schematic diagram of laser water quality testing meter.
Accompanying drawing 2 is the structural representation of laser water quality testing meter.
Embodiment
The utility model comprises light source controller 1, semiconductor laser 2, sample cell 3, photodetector 4, data acquisition unit 5.Shown in accompanying drawing 1, described light source controller 1 connects the control end of semiconductor laser 2, the luminous intensity and the frequency of control semiconductor laser 2; After the sending light and absorb of semiconductor laser 2, receive and convert to electric signal by photodetector 4 through the water samples in the sample cell 3; Photodetector 4 connects data acquisition unit 5; Intensity variation before and after data acquisition unit 5 absorbs according to water sample detects water quality.Shown in accompanying drawing 2, the front of described semiconductor laser 2 is provided with sample cell 3, and photodetector 4 is set behind the sample cell 3, and semiconductor laser 2, sample cell 3, photodetector 4 are on same straight line.
Claims (1)
1. laser water quality testing meter; Form by light source controller, semiconductor laser, sample cell, photodetector, data acquisition unit; It is characterized in that: light source controller connects the control end of semiconductor laser; Photodetector connects data acquisition unit, and semiconductor laser, sample cell, photodetector are on same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204374706U CN202351172U (en) | 2011-10-27 | 2011-10-27 | Laser water quality detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204374706U CN202351172U (en) | 2011-10-27 | 2011-10-27 | Laser water quality detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202351172U true CN202351172U (en) | 2012-07-25 |
Family
ID=46540168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204374706U Expired - Fee Related CN202351172U (en) | 2011-10-27 | 2011-10-27 | Laser water quality detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202351172U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106770023A (en) * | 2017-01-17 | 2017-05-31 | 谢锦宸 | The laser detection monitor and detection method of multi-chamber |
| CN108051401A (en) * | 2017-01-17 | 2018-05-18 | 谢锦宸 | Water monitoring device |
| CN117647489A (en) * | 2024-01-30 | 2024-03-05 | 埃睿迪信息技术（北京）有限公司 | Water quality detection method, device and equipment |
-
2011
- 2011-10-27 CN CN2011204374706U patent/CN202351172U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106770023A (en) * | 2017-01-17 | 2017-05-31 | 谢锦宸 | The laser detection monitor and detection method of multi-chamber |
| CN106770023B (en) * | 2017-01-17 | 2018-01-16 | 明光市裕阳新材料有限公司 | The laser detection monitor and detection method of multi-chamber |
| CN107907503A (en) * | 2017-01-17 | 2018-04-13 | 谢锦宸 | The laser detection monitor of multi-chamber |
| CN108051401A (en) * | 2017-01-17 | 2018-05-18 | 谢锦宸 | Water monitoring device |
| CN108051401B (en) * | 2017-01-17 | 2020-05-15 | 山东省源丰环保科技有限公司 | Water quality monitoring device |
| CN107907503B (en) * | 2017-01-17 | 2020-06-05 | 合肥中科富华新材料有限公司 | Multi-cavity laser detection monitor |
| CN117647489A (en) * | 2024-01-30 | 2024-03-05 | 埃睿迪信息技术（北京）有限公司 | Water quality detection method, device and equipment |
| CN117647489B (en) * | 2024-01-30 | 2024-04-16 | 埃睿迪信息技术（北京）有限公司 | Water quality detection method, device and equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20121027 |