CN103105362A - Multi-range online water quality detector - Google Patents
Multi-range online water quality detector Download PDFInfo
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- CN103105362A CN103105362A CN2012104386223A CN201210438622A CN103105362A CN 103105362 A CN103105362 A CN 103105362A CN 2012104386223 A CN2012104386223 A CN 2012104386223A CN 201210438622 A CN201210438622 A CN 201210438622A CN 103105362 A CN103105362 A CN 103105362A
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- light source
- water quality
- absorption cell
- data acquisition
- photoelectric detector
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Abstract
The invention discloses a multi-range online water quality detector which comprises a micro control unit (MCU) unit, a light source controller, an absorption cell and a data acquisition device, and is characterized by also comprising a light source detection channel, wherein the light source detection channel comprises a single-color light source and a photoelectric detector; the MCU unit conducts the single-color light source through the light source controller; light emitted by the single-color light source is transmitted to the absorption cell; after a water quality sample in the absorption cell is absorbed, excessive light rays are transmitted to the photoelectric detector for receiving and are converted into an electric signal, and the electric signal is input to the data acquisition device; and the data acquisition device transmits a detection signal to the MCU unit for operation. Due to application of two single-color light sources and the photoelectric detector, two ranges are integrated on an instrument, the measurement range of the instrument is widened, and the measurement accuracy is improved.
Description
Technical field
the present invention relates to a kind of on-line detector, especially a kind of multirange water quality on-line detector.
Background technology
material molecule, under different conditions, absorb or the situations such as the wavelength of emission spectrum, intensity, polarization state, and the architectural feature of this material has intrinsic relation.The molecular structure difference of different material, corresponding to different Absorption and emission spectras; When the same material concentration is different, the absorption intensity difference in same absorption peak position.Therefore, by detecting the degree of absorption of a certain material to special wavelength light in water, can determine the concentration of this material in water.At present, water quality testing meter generally comprises light source, sample cell, three parts of photoelectric detector, and the light that light source sends is received by photoelectric detector after water sample absorbs, and the intensity variation before and after absorbing according to water sample is carried out water quality detection.In addition, water quality testing meter generally only adopts single source at present, and the water sample in a certain concentration range is detected.When surveyed material concentration no to scale scope, need to change the instrument of other ranges, this is concerning the water sample of unknown concentration scope, and the accuracy of range external pelivimetry result is poor, and detection method has uncertainty, and testing process is loaded down with trivial details.
Summary of the invention
the present invention seeks to: a kind of multirange water quality on-line detector is provided, can expands the instrument range, improve the accuracy of measurement of on-line detector.
technical scheme of the present invention is: a kind of multirange water quality on-line detector, comprise the MCU unit, light source controller, data acquisition unit and light source detection passage, described light source detection passage comprises monochromatic source, absorption cell and photoelectric detector, described MCU unit is by light source controller conducting monochromatic source, the light that monochromatic source is sent is transferred to absorption cell, after the water sample in absorption cell absorbs, unnecessary light transmission receives and converts to electric signal to photodetector, this signal is input to data acquisition unit, data acquisition unit is transferred to detection signal the MCU unit again and carries out computing.
preferably, described multirange water quality on-line detector comprises 2 light source detection passages.
preferably, described monochromatic source, photoelectric detector and absorption cell are on the same straight line.
owing to the present invention includes 2 light source detection passages, at first the MCU unit is by light source controller conducting monochromatic source one, cut-off monochromatic source two, the light that monochromatic source one is sent is transferred to absorption cell, after the water sample in absorption cell absorbs, unnecessary light transmission receives and converts to electric signal to photodetector one, and this signal is input to data acquisition unit, data acquisition unit is transferred to detection signal the MCU unit again and carries out computing afterwards, obtains measurement result c
1
; Then the MCU unit is by light source controller conducting monochromatic source two, cut-off monochromatic source one, the light that monochromatic source two is sent is transferred to absorption cell, after the water sample in absorption cell absorbs, unnecessary light transmission receives and converts to electric signal to photodetector two, this signal is input to data acquisition unit, and data acquisition unit is transferred to the MCU unit by detection signal and carries out computing, obtains measurement result c
2
; Finally, the MCU unit compares the result of twice computing, thereby draws a measurement result c accurately.
advantage of the present invention is:
two kinds of monochromatic sources are integrated on an instrument, have enlarged the measurement range of instrument, improved the accuracy of measuring.
The accompanying drawing explanation
below in conjunction with drawings and Examples, the invention will be further described:
fig. 1 is principle of the invention figure;
fig. 2 is structural representation of the present invention;
wherein: 1 light source controller, 2 monochromatic source one, 3 monochromatic source two, 4 absorption cells, 5 photoelectric detector one, 6 photoelectric detector two, 7 data acquisition units, 8 MCU unit.
Embodiment
embodiment: as shown in Figure 1, 2, a kind of multirange water quality on-line detector, comprise MCU unit 8, light source controller 1, monochromatic source 1, monochromatic source 23, absorption cell 4, photoelectric detector 1, photoelectric detector 26 and data acquisition unit 7.The output terminal of MCU unit 8 connects the input end of light source controller 1, two output terminals of light source controller 1 connect respectively the input end of monochromatic source 1 and monochromatic source 23, the input end of the output terminal connection data collector 7 of photoelectric detector 1 and photoelectric detector 26, the output terminal of data acquisition unit 7 connects the input end of MCU8, monochromatic source 1, absorption cell 4 and photoelectric detector 1 are on the same straight line, monochromatic source 23, absorption cell 4 and photoelectric detector 26 are on the same straight line.At first MCU unit 8 is by light source controller 1 conducting monochromatic source 1, cut-off monochromatic source 23, the light that monochromatic source 1 is sent is transferred to absorption cell 4, after the water sample in absorption cell 4 absorbs, unnecessary light transmission receives and converts to electric signal to photodetector 1, this signal is input to data acquisition unit 7, and data acquisition unit 7 is transferred to detection signal more mono-8 yuan of MCU and carries out computing, obtains measurement result c1; Then MCU unit 8 is by light source controller conducting monochromatic source 23, cut-off monochromatic source 1, the light that monochromatic source 23 is sent is transferred to absorption cell 4, after the water sample in absorption cell 4 absorbs, unnecessary light transmission receives and converts to electric signal to photodetector 26, this signal is input to data acquisition unit 7, and data acquisition unit 7 is transferred to detection signal more mono-8 yuan of MCU and carries out computing, obtains measurement result c2; Finally, the MCU unit compares the result of twice computing, if c1 ∈ is s1, c2 s2, get test substance concentration c=c1, if c1 is s1, c2 ∈ s2, get test substance concentration c=c2, thereby draws a measurement result c accurately.The conducting simultaneously of monochromatic source one of the present invention and monochromatic source two, otherwise can cause the phase mutual interference.
the above is only the embodiment of invention.Protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses, and the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claim was defined.
Claims (3)
1. a multirange water quality on-line detector, comprise the MCU unit, light source controller and data acquisition unit, it is characterized in that, also comprise the light source detection passage, described light source detection passage comprises monochromatic source, absorption cell and photoelectric detector, described MCU unit is by light source controller conducting monochromatic source, the light that monochromatic source is sent is transferred to absorption cell, after the water sample in absorption cell absorbs, unnecessary light transmission receives and converts to electric signal to photodetector, this signal is input to data acquisition unit, data acquisition unit is transferred to detection signal the MCU unit again and carries out computing.
2. multirange water quality on-line detector according to claim 1, is characterized in that, described multirange multiple-factor water quality on-line detector comprises 2 light source detection passages.
3. multirange water quality on-line detector according to claim 1, is characterized in that, described monochromatic source, photoelectric detector and absorption cell are on the same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104386223A CN103105362A (en) | 2012-11-06 | 2012-11-06 | Multi-range online water quality detector |
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| CN2012104386223A CN103105362A (en) | 2012-11-06 | 2012-11-06 | Multi-range online water quality detector |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103645288A (en) * | 2013-11-16 | 2014-03-19 | 中山欧麦克仪器设备有限公司 | Multifunctional portable water quality detection analyzer |
| CN103645290A (en) * | 2013-11-30 | 2014-03-19 | 中山欧麦克仪器设备有限公司 | Water quality online detector |
| CN104111227A (en) * | 2013-06-21 | 2014-10-22 | 芜湖美的厨卫电器制造有限公司 | Detection apparatus and detection method for water quality in inner container of electric water heater |
| CN104820078A (en) * | 2014-01-30 | 2015-08-05 | 株式会社岛津制作所 | Detection method for multi-measuring range detection system, and multi-measuring range detection system |
| CN110987876A (en) * | 2019-12-24 | 2020-04-10 | 上海蓝长自动化科技有限公司 | Wide-range optical turbidity detection equipment and detection method thereof |
| CN114965310A (en) * | 2022-04-26 | 2022-08-30 | 上海亚新城市建设有限公司 | Water quality on-line monitoring system measuring range self-switching control method and system |
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| JP2001324442A (en) * | 2000-05-12 | 2001-11-22 | Mitsubishi Electric Corp | Wastewater image apparatus and method for extracting impurity in wastewater using the apparatus |
| US20080246955A1 (en) * | 2007-04-09 | 2008-10-09 | Nippon Soken, Inc. | Method of detecting alcohol concentration and alcohol concentration detecting apparatus |
| CN201681040U (en) * | 2010-04-27 | 2010-12-22 | 上海海恒机电仪表有限公司 | Multi-parameter water quality analyzer |
| CN102128814A (en) * | 2010-12-09 | 2011-07-20 | 中国科学院安徽光学精密机械研究所 | Light path structure and method for detecting large-dynamic range liquid turbidity |
| CN202928944U (en) * | 2012-11-06 | 2013-05-08 | 苏州聚阳环保科技有限公司 | Multirange water quality on-line detector |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2001324442A (en) * | 2000-05-12 | 2001-11-22 | Mitsubishi Electric Corp | Wastewater image apparatus and method for extracting impurity in wastewater using the apparatus |
| US20080246955A1 (en) * | 2007-04-09 | 2008-10-09 | Nippon Soken, Inc. | Method of detecting alcohol concentration and alcohol concentration detecting apparatus |
| CN201681040U (en) * | 2010-04-27 | 2010-12-22 | 上海海恒机电仪表有限公司 | Multi-parameter water quality analyzer |
| CN102128814A (en) * | 2010-12-09 | 2011-07-20 | 中国科学院安徽光学精密机械研究所 | Light path structure and method for detecting large-dynamic range liquid turbidity |
| CN202928944U (en) * | 2012-11-06 | 2013-05-08 | 苏州聚阳环保科技有限公司 | Multirange water quality on-line detector |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104111227A (en) * | 2013-06-21 | 2014-10-22 | 芜湖美的厨卫电器制造有限公司 | Detection apparatus and detection method for water quality in inner container of electric water heater |
| CN103645288A (en) * | 2013-11-16 | 2014-03-19 | 中山欧麦克仪器设备有限公司 | Multifunctional portable water quality detection analyzer |
| CN103645290A (en) * | 2013-11-30 | 2014-03-19 | 中山欧麦克仪器设备有限公司 | Water quality online detector |
| CN104820078A (en) * | 2014-01-30 | 2015-08-05 | 株式会社岛津制作所 | Detection method for multi-measuring range detection system, and multi-measuring range detection system |
| CN110987876A (en) * | 2019-12-24 | 2020-04-10 | 上海蓝长自动化科技有限公司 | Wide-range optical turbidity detection equipment and detection method thereof |
| CN114965310A (en) * | 2022-04-26 | 2022-08-30 | 上海亚新城市建设有限公司 | Water quality on-line monitoring system measuring range self-switching control method and system |
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Application publication date: 20130515 |