CN2556638Y - Photoelectric detector for water quality turbidity measurer - Google Patents
Photoelectric detector for water quality turbidity measurer Download PDFInfo
- Publication number
- CN2556638Y CN2556638Y CN 02209646 CN02209646U CN2556638Y CN 2556638 Y CN2556638 Y CN 2556638Y CN 02209646 CN02209646 CN 02209646 CN 02209646 U CN02209646 U CN 02209646U CN 2556638 Y CN2556638 Y CN 2556638Y
- Authority
- CN
- China
- Prior art keywords
- light
- chamber
- photoelectric
- sample
- attenuate
- 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 - Lifetime
Links
Images
Abstract
The utility model relates to a photoelectric detector of a water turbidity meter. The utility model comprises a light source room, a sample room, an attenuated light detecting room and a scattered light detecting room which are all arranged in a shell; the light source room is provided with a monochromatic and balanced light which consist of a light source, a monochromator and a collimation lens; the sample room is provided with a sample tank; the attenuated light detecting room is provided with an attenuated light detector that consists of a reflecting mirror, a diaphragm and a photoelectric exchanger, or an attenuated light detector that consists of an optical trap with a diaphragm and a photoelectric exchanger; the scattered light detecting room is provided with a scattered light detector that consists of a convex lens and a photoelectric exchanger. The section area for receiving light of the photoelectric exchanger can be controlled by regulating a light aperture of the diaphragm, and the international standards of ISO 7027 can be met by choosing the focal length of the convex lens, regulating the position between the convex lens and the photoelectric exchanger and by regulating the effective area for receiving the light of the photoelectric exchanger. The utility model can be applicable to detectors of a laboratory, on-line and portable single attenuated light or scattered light or the light with two composite functions.
Description
Technical field
A kind of photoelectric detection system that relates to the water turbidity measuring instrument in water quality measurement field.
Background technology
The attenuate light detecting device of the photoelectric detection system of existing water turbidity measuring instrument is not provided with the light hurdle, and light scattering detector is not provided with convex lens structures, does not satisfy the requirement of international standard ISO7027.
Summary of the invention
Technical problem to be solved in the utility model is, provides and can satisfy international standard ISO7027 requirement, sensitivity, accuracy of detection height, the photoelectric detection system of the water turbidity measuring instrument of good stability.
The technical scheme that solves its technical matters employing is:
1. the photoelectric detection system of a water turbidity measuring instrument, it comprises housing 1, being provided with light source chamber 22 in housing 1 is connected with sample chamber 6, sample chamber 6 is connected with attenuate light sensing chamber 11, scattered light sensing chamber 15, is built-in with the monochromatic collimated beam source of being made up of light source 2, monochromator 3, collimation lens 5 at light source chamber 22; 6 are built-in with sample cell 8 in the sample chamber; Be built-in with the attenuate light detecting device of forming by reflective mirror 10, photoelectric commutator 13 in attenuate light sensing chamber 11; Be built-in with the light scattering detector of forming by photoelectric commutator 17 in scattered light sensing chamber 15, its characteristics are: be provided with light hurdle 12 between the reflective mirror 10 of attenuate light detecting device and photoelectric commutator 13, the place ahead at the photoelectric commutator 17 of light scattering detector is provided with convex lens 14, the optical axis 4 in monochromatic collimated beam source coincides with the center line 24 of sample chamber 6, the center line 9 of attenuate light sensing chamber 11, the center line 24 of sample chamber 6 intersects vertically with the center line 16 of scattered light sensing chamber 15, and the center line 9 and the longitudinal centre line 23 of attenuate light sensing chamber 11 intersect vertically.
2. the photoelectric detection system of a water turbidity measuring instrument, it comprises housing 1, being provided with light source chamber 22 in housing 1 is connected with sample chamber 6, sample chamber 6 is connected with attenuate light sensing chamber 11, scattered light sensing chamber 15, is built-in with the monochromatic collimated beam source of being made up of light source 2, monochromator 3, collimation lens 5 at light source chamber 22; 6 are built-in with sample cell 8 in the sample chamber; Be built-in with the attenuate light detecting device of forming by photoelectric commutator 13 in attenuate light sensing chamber 11; Be built-in with the light scattering detector of forming by photoelectric commutator 17 in scattered light sensing chamber 15, its characteristics are: the place ahead at the photoelectric commutator 13 of attenuate light detecting device is provided with the ligh trap 25 that has the light hurdle, the place ahead at the photoelectric commutator 17 of light scattering detector is provided with convex lens 14, the optical axis 4 in monochromatic collimated beam source coincides with the center line 24 of sample chamber 6, the center line 9 of attenuate light sensing chamber 11, and the center line 24 of sample chamber 6 intersects vertically with the center line 16 of scattered light sensing chamber 15.
3. or in light source chamber 22 and sample chamber 6, the position that is connected with attenuate light sensing chamber 11, scattered light sensing chamber 15, sample chamber 6 is provided with optical window 27.
4. or the reference light chamber 19 that is connected with light source chamber 22 of setting, be provided with by unthreaded hole 21 at light source chamber 22 position that is connected with reference light chamber 19, be provided with the reference photodetector that photoelectric commutator 18 is formed in the lower end of unthreaded hole 21, the optical axis 4 in monochromatic collimated beam source intersects vertically with the center line 20 of reference light chamber 19.
The photoelectric detection system of the utility model water turbidity measuring instrument, owing in the attenuate light detecting device, be provided with the light hurdle, can receive the sectional area of light by the clear aperature control photoelectric commutator of setting up the light hurdle, make the aperture angle of relative water sample can satisfy the requirement of international standard ISO7027 attenuate light mensuration; Owing in light scattering detector, be provided with convex lens, the useful area that can be subjected to illumination by the focal length of selecting convex lens, the position of setting up the relative photoelectric commutator of convex lens and photoelectric commutator makes the aperture angle of relative water sample can satisfy the requirement of international standard ISO7027 scattered light mensuration; Owing to be provided with the reference photodetector, can compensate because of light beats and cause influence turbidimetry; This device can be widely used in laboratory, water turbidity measuring instrument such as online, portable; Can make the photoelectric detection system of compound water quality turbidimetric apparatus with attenuate light detecting device and light scattering detector; Also can make the photoelectric detection system of the water turbidity measuring instrument of attenuate light detecting device or light scattering detector separately; Have sensitivity, accuracy of detection height, advantages such as good stability.
Description of drawings
Fig. 1 is the photoelectric detection system structure cross-sectional schematic of the water turbidity measuring instrument of embodiment 1.
Fig. 2 is the photoelectric detection system structure cross-sectional schematic of the water turbidity measuring instrument of embodiment 2.
Fig. 3 is another sample cell 8 structure cross-sectional schematic.
Fig. 4 is among Fig. 6, the B-B cross-sectional schematic.
Embodiment:
Embodiment 1: with reference to Fig. 1, the photoelectric detection system of water turbidity measuring instrument has housing 1, light tight, reflectorized material making that housing 1 adopts, and can adopt black plastic to make.Be provided with light source chamber 22 and be connected with sample chamber 6 in housing 1, sample chamber 6 is connected with attenuate light sensing chamber 11, scattered light sensing chamber 15.Be built-in with the monochromatic collimated beam source of light source 2, monochromator 3, collimation lens 5 compositions at light source chamber 22.Light source 2 can adopt semiconductor light-emitting-diode, and its wavelength X is selected the 850-880nm scope for use, and light source 2 also can adopt incandescent lamp.Monochromator 3 is an optical filter, and selecting filter wavelength λ for use is 860nm, and spectral half width Δ λ is 30nm, and monochromator 3 also can be Amici prism or grating etc.6 are built-in with sample cell 8 in the sample chamber, and sample cell 8 is by transparent material (glass, transparent plastic are made).In sample cell 8, put into sample 7.Attenuate light sensing chamber 11 is light leak chamber not, is built-in with the attenuate light detecting device of being made up of reflective mirror 10, light hurdle 12, photoelectric commutator 13 in attenuate light sensing chamber 11.Reflective mirror 10 is the 45 setting.Be built-in with convex lens 14, photoelectric commutator 17 in scattered light sensing chamber 15, or the reference light chamber 19 that is connected with light source chamber 22 of setting, be provided with by unthreaded hole 21 at light source chamber 22 position that is connected with reference light chamber 19, be provided with the reference photodetector that photoelectric commutator 18 is formed in the lower end of unthreaded hole 21.Photoelectric commutator 13,17 and 18 can be photoelectric cell or photoelectric tube.The optical axis 4 in monochromatic collimated beam source coincides with the center line 24 of sample chamber 6, the center line 9 of attenuate light sensing chamber 11, the center line 24 of sample chamber 6 intersects vertically with the center line 16 of scattered light sensing chamber 15, and the center line 9 and the longitudinal centre line 23 of attenuate light sensing chamber 11 intersect vertically.It is the photoelectric cell of 10mm that the photoelectric commutator 17 of present embodiment 1 is selected diameter phi for use, convex lens 14 focal distance f are 30mm, the illumination surface distance of the center of convex lens 14 and photoelectric cell 17 is 30mm, and photoelectric cell receives light the aperture angle Ω θ that the scattering luminous point in the water sample forms is not more than 18.9 °.Present embodiment 1 is the photoelectric detection system of compound, water turbidity measuring instrument that the laboratory is used with attenuate light detecting device and light scattering detector.
Embodiment 2: with reference to Fig. 2, be the attenuate light detecting device among Fig. 1 to be changed in attenuate light sensing chamber 11 be built-in with by photoelectric commutator 13, be provided with the attenuate light detecting device of ligh trap 25 compositions that have the light hurdle in photoelectric commutator 13 the place aheads.The optical axis 4 in monochromatic collimated beam source coincides with the center line 24 of sample chamber 6, the center line 9 of attenuate light sensing chamber 11.Other structure is identical with embodiment 1.Present embodiment 2 is the photoelectric detection system of compound, water turbidity measuring instrument that the laboratory is used with attenuate light detecting device and light scattering detector.
With reference to Fig. 3, or change the sample cell shown in Fig. 1-2 8 into sample cell shown in Figure 38, sample cell 8 is the sample chamber 6 of housing 1, by light tight, reflectorized material is not made, and also can adopt black plastic to make.In light source chamber 22 and sample chamber 6, the position that is connected with attenuate light sensing chamber 11, sample chamber 6 is provided with optical window 27.
With reference to Fig. 3 and 4, in light source chamber 22 and sample chamber 6, the position that is connected with attenuate light sensing chamber 11, scattered light sensing chamber 15, sample chamber 6 is provided with optical window 27.Sample chamber 6 is the photoelectric detection system that this structure of sample cell 8 is applicable to various types of online water turbidity measuring instruments.
Claims (4)
1. the photoelectric detection system of a water turbidity measuring instrument, it comprises housing (1), being provided with light source chamber (22) in housing (1) is connected with sample chamber (6), sample chamber (6) is connected with attenuate light sensing chamber (11), scattered light sensing chamber (15), is built-in with the monochromatic collimated beam source of being made up of light source (2), monochromator (3), collimation lens (5) at light source chamber (22); (6) are built-in with sample cell (8) in the sample chamber; Be built-in with the attenuate light detecting device of forming by reflective mirror (10), photoelectric commutator (13) in attenuate light sensing chamber (11); Be built-in with the light scattering detector of forming by photoelectric commutator (17) in scattered light sensing chamber (15), it is characterized in that: between the reflective mirror (10) of attenuate light detecting device and photoelectric commutator (13), be provided with light hurdle (12), the place ahead at the photoelectric commutator (17) of light scattering detector is provided with convex lens (14), the center line (24) of optical axis in monochromatic collimated beam source (4) and sample chamber (6), the center line (9) of attenuate light sensing chamber (11) overlaps, the center line (24) of sample chamber (6) intersects vertically with the center line (16) of scattered light sensing chamber (15), and the center line (9) of attenuate light sensing chamber (11) intersects vertically with longitudinal centre line (23).
2. the photoelectric detection system of a water turbidity measuring instrument, it comprises housing (1), being provided with light source chamber (22) in housing (1) is connected with sample chamber (6), sample chamber (6) is connected with attenuate light sensing chamber (11), scattered light sensing chamber (15), is built-in with the monochromatic collimated beam source of being made up of light source (2), monochromator (3), collimation lens (5) at light source chamber (22); (6) are built-in with sample cell (8) in the sample chamber; Be built-in with the attenuate light detecting device of forming by photoelectric commutator (13) in attenuate light sensing chamber (11); Be built-in with the light scattering detector of forming by photoelectric commutator (17) in scattered light sensing chamber (15), it is characterized in that: the place ahead at the photoelectric commutator (13) of attenuate light detecting device is provided with the ligh trap (25) that has the light hurdle, the place ahead at the photoelectric commutator (17) of light scattering detector is provided with convex lens (14), the optical axis in monochromatic collimated beam source (4) coincides with the center line (24) of sample chamber (6), the center line (9) of attenuate light sensing chamber (11), and the center line (24) of sample chamber (6) intersects vertically with the center line (16) of scattered light sensing chamber (15).
3. the photoelectric detection system of water turbidity measuring instrument according to claim 1 and 2, it is characterized in that: or in light source chamber (22) and sample chamber (6), sample chamber (6) position that is connected with attenuate light sensing chamber (11), scattered light sensing chamber (15) is provided with optical window (27).
4. according to the photoelectric detection system of one of any described water turbidity measuring instrument of claim 1 to 2, it is characterized in that: or the reference light chamber (19) that is connected with light source chamber (22) of setting, be provided with by unthreaded hole (21) at light source chamber (22) position that is connected with reference light chamber (19), be provided with the reference photodetector that photoelectric commutator (18) is formed in the lower end of unthreaded hole (21), the optical axis in monochromatic collimated beam source (4) intersects vertically with the center line (20) of reference light chamber (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02209646 CN2556638Y (en) | 2002-01-09 | 2002-01-09 | Photoelectric detector for water quality turbidity measurer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02209646 CN2556638Y (en) | 2002-01-09 | 2002-01-09 | Photoelectric detector for water quality turbidity measurer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2556638Y true CN2556638Y (en) | 2003-06-18 |
Family
ID=33690017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02209646 Expired - Lifetime CN2556638Y (en) | 2002-01-09 | 2002-01-09 | Photoelectric detector for water quality turbidity measurer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2556638Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100456015C (en) * | 2006-05-18 | 2009-01-28 | 哈尔滨工程大学 | Laser method for measuring water quality and measurer therefor |
| CN102288544A (en) * | 2010-06-17 | 2011-12-21 | 北京利达科信环境安全技术有限公司 | Turbidity flowing cell |
| CN102313736A (en) * | 2010-07-05 | 2012-01-11 | emz-汉拿两合有限公司 | Optical sensor for use in a domestic washing machine or dishwasher |
| CN104111237A (en) * | 2013-04-15 | 2014-10-22 | 恩德莱斯和豪瑟尔测量及调节技术分析仪表两合公司 | Arrangement For Optical Measurement Of One Or More Physical, Chemical And/or Biological Process Parameters Of A Medium (5) |
| WO2015043049A1 (en) * | 2013-09-30 | 2015-04-02 | 江苏英诺华医疗技术有限公司 | Multifunctional medical analyser |
| CN104568845A (en) * | 2015-01-10 | 2015-04-29 | 浙江大学 | Underwater all-angle turbidity measurement equipment and method |
| CN104730054A (en) * | 2015-04-10 | 2015-06-24 | 中国科学院烟台海岸带研究所 | Integrated probe type photoelectric water-quality multi-parameter online measuring system |
| CN113252628A (en) * | 2021-05-12 | 2021-08-13 | 中国科学技术大学 | Fluorescence spectrum water quality monitoring device and monitoring method thereof |
-
2002
- 2002-01-09 CN CN 02209646 patent/CN2556638Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100456015C (en) * | 2006-05-18 | 2009-01-28 | 哈尔滨工程大学 | Laser method for measuring water quality and measurer therefor |
| CN102288544A (en) * | 2010-06-17 | 2011-12-21 | 北京利达科信环境安全技术有限公司 | Turbidity flowing cell |
| CN102288544B (en) * | 2010-06-17 | 2013-05-22 | 北京利达科信环境安全技术有限公司 | Turbidity flowing cell |
| CN102313736A (en) * | 2010-07-05 | 2012-01-11 | emz-汉拿两合有限公司 | Optical sensor for use in a domestic washing machine or dishwasher |
| CN104111237A (en) * | 2013-04-15 | 2014-10-22 | 恩德莱斯和豪瑟尔测量及调节技术分析仪表两合公司 | Arrangement For Optical Measurement Of One Or More Physical, Chemical And/or Biological Process Parameters Of A Medium (5) |
| WO2015043049A1 (en) * | 2013-09-30 | 2015-04-02 | 江苏英诺华医疗技术有限公司 | Multifunctional medical analyser |
| CN104568845A (en) * | 2015-01-10 | 2015-04-29 | 浙江大学 | Underwater all-angle turbidity measurement equipment and method |
| CN104568845B (en) * | 2015-01-10 | 2017-02-22 | 浙江大学 | Underwater all-angle turbidity measurement equipment and method |
| CN104730054A (en) * | 2015-04-10 | 2015-06-24 | 中国科学院烟台海岸带研究所 | Integrated probe type photoelectric water-quality multi-parameter online measuring system |
| CN104730054B (en) * | 2015-04-10 | 2018-08-21 | 中国科学院烟台海岸带研究所 | A kind of integrated probe formula photoelectricity multi-parameter water-quality on-line measurement system |
| CN113252628A (en) * | 2021-05-12 | 2021-08-13 | 中国科学技术大学 | Fluorescence spectrum water quality monitoring device and monitoring method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0182618B1 (en) | Sample cell for light scattering measurements | |
| EP2264437B1 (en) | Improved apparatus for measuring the scattered light signals from a liquid sample | |
| US4678326A (en) | Apparatus for the measurement of fluorescence, turbidity, luminescence or absorption | |
| CN103048046A (en) | Double-beam spectrometer | |
| AU2020104424A4 (en) | A method and equipment for measuring absorption coefficient of liquid | |
| CN2556638Y (en) | Photoelectric detector for water quality turbidity measurer | |
| CN102890067A (en) | Methanol gasoline quick detector based on near infrared rays | |
| FI78355B (en) | METHOD FOER MAETNING AV GLANS OCH APPARATUR FOER TILLAEMPNING AV METODEN. | |
| US5545567A (en) | Luminoscopic analytic device and method | |
| CN2430682Y (en) | High sensitive photometer | |
| CN108181289A (en) | The fiber end face detected towards water pollution integrates Fluorescence and Absorption Spectroscopies test device | |
| CN1472525A (en) | On-line near-infrared spectrograph | |
| CN209471042U (en) | A kind of full spectrum immersion cell that light path is continuously adjustable | |
| CN111103247A (en) | Ultraviolet-visible spectrophotometer | |
| CN1116601C (en) | Optical probe of optical dust particle counter | |
| WO1995009355A1 (en) | A new method of detecting substances in a liquid | |
| US20220034803A1 (en) | Optical multimeter | |
| US9632025B2 (en) | Method and measuring device for continuously measuring the abbe number | |
| US11656172B1 (en) | Multichannel angular spectrometer | |
| CN1873393A (en) | Optical multichannel analysis apparatus | |
| RU2806195C1 (en) | Photoelectric method for measuring the refractive index and average dispersion of motor fuels and device for its implementation | |
| CN2141565Y (en) | Density sensor using optic fibre bundle | |
| CN218629494U (en) | Reflection type water quality detection device | |
| JPS642888B2 (en) | ||
| RU2032166C1 (en) | Method of determination of refractive index of wedge-shaped articles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120109 Granted publication date: 20030618 |