CN203011829U - Cuvette, water quality concentration detecting device and water quality monitoring system - Google Patents
Cuvette, water quality concentration detecting device and water quality monitoring system Download PDFInfo
- Publication number
- CN203011829U CN203011829U CN 201220617187 CN201220617187U CN203011829U CN 203011829 U CN203011829 U CN 203011829U CN 201220617187 CN201220617187 CN 201220617187 CN 201220617187 U CN201220617187 U CN 201220617187U CN 203011829 U CN203011829 U CN 203011829U
- Authority
- CN
- China
- Prior art keywords
- colorimetric
- cuvette
- width
- unit
- water concentration
- 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
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model discloses a water quality concentration detecting device comprising a light source (1), a cuvette (2), an optical filter (3) and a detector (4) which are arranged side by side in sequence; and the cuvette (2) is provided with at least two colorimetric segments, and the widths of both the colorimetric segments from the light source (1) to the optical filter (3) are different. The cuvette has the colorimetric segments with different widths, i.e., different optical paths can be obtained through colorimetry by using the different colorimetric segments, thus the colorimetric segment with a smaller width can be selected when a to-be-detected sample with higher concentration is detected, and then, the measuring range of the detecting device can be widened; and the colorimetric segment with a larger width can be selected when a to-be-detected sample with lower concentration is detected, so that the detection sensitivity of the detecting device is improved, the errors generated in the detection process are reduced, and the accuracy of a detected result is improved. The utility model also provides a water quality monitoring system with the water quality concentration detecting device and the cuvette applied to the water quality concentration detecting device.
Description
Technical field
The utility model relates to the environmental monitoring technology field, relates in particular to a kind of cuvette for water quality monitoring system and uses the water concentration pick-up unit of this cuvette.In addition, the utility model also provides a kind of water quality monitoring system that comprises above-mentioned water concentration pick-up unit.
Background technology
Along with environmental pollution is more and more serious, it is particularly important that environmental monitoring technology also becomes, and wherein a most important job is exactly the monitoring to water quality.Water quality monitoring system generally includes water concentration pick-up unit and water concentration pick-up unit, in the course of work, at first adopt the water concentration pick-up unit that water body is taken a sample, then adopt the water concentration pick-up unit to obtain net result to water body example analysis.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of water concentration pick-up unit in prior art; Defective and drawback in the course of work of following this device of brief description and this device busy.
In prior art, as shown in Figure 1, the water concentration pick-up unit adopts photometry to detect usually, and this water concentration pick-up unit mainly comprises light source 1, cuvette 2, optical filter 3 and the detecting device 4 that is arranged side by side successively.In the course of work, testing sample is placed in cuvette 2, opens light source 1 and make it send light beam, the testing sample in this light beam irradiates cuvette 2, then pass the final detecting device 4 that arrives of optical filter 3.After determining the absorbance A, light path L of above-mentioned light path, then according to Beer law:
A=K*C*L, (wherein K is the constant relevant with wavelength, and C is the COD concentration value)
Can calculate the concentration value C of testing sample.
Yet, because the length of above-mentioned cuvette 2 is fixed value, make in testing process light path L constant all the time, cause above-mentioned single photo path method to be subject to the restriction of cuvette 2 length, when water concentration was low, measuring error was larger, has affected the accuracy of testing result.
In view of this, demand urgently for above-mentioned technical matters, above-mentioned water concentration pick-up unit is done further optimal design, to reduce the error in testing process, improve the accuracy of testing result.
The utility model content
The purpose of this utility model is for providing the water concentration pick-up unit of a kind of cuvette and this cuvette of application, and this device can reduce the error in testing process, improves the accuracy of testing result.On this basis, another purpose of the present utility model is for providing a kind of water quality monitoring system that comprises above-mentioned water concentration pick-up unit.
For solving the problems of the technologies described above, the utility model provides a kind of water concentration pick-up unit, comprises the light source, cuvette, optical filter and the detecting device that are arranged side by side successively; Described cuvette has at least two colorimetric sections, and the width along described light source to described optical filter of each described colorimetric section is all not identical.
Preferably, the number of described colorimetric section is two, and two described colorimetric sections are located at respectively upper end, the lower end of described cuvette.
Preferably, two described colorimetric sections comprise the first colorimetric section and the second less colorimetric section of width that width is larger, and the width of described the first colorimetric section is two times of width of described the second colorimetric section.
Preferably, the number of described light source, optical filter and detecting device is two, two described light sources, two described optical filters and two described detecting devices respectively with two corresponding settings of described colorimetric section, form the water concentration testing agency of two groups of different light paths.
The utility model provides a kind of water concentration pick-up unit, and its cuvette has at least two colorimetric sections, and the width along light source to optical filter of each colorimetric section is all not identical.
Adopt this structure, in the course of work, at first testing sample is placed in cuvette, open light source and make it send light beam, the testing sample in this light beam irradiates cuvette, then pass optical filter and finally arrive detecting device.Determine absorbance, the light path of above-mentioned light path, then obtain final detectable concentration according to Beer law.Due to the colorimetric section that has different in width in above-mentioned cuvette, namely adopt different colorimetric sections to carry out colorimetric and can obtain different light paths, like this, when the higher testing sample of detectable concentration, can choose the less colorimetric section of width, obtain less light path, with the range ability of expansion pick-up unit; When the lower testing sample of detectable concentration, can choose the larger colorimetric section of width, obtain larger light path, to improve the detection sensitivity of pick-up unit, reduce the error in testing process, improve the accuracy of testing result.
In addition, the utility model also provides a kind of water concentration monitoring system, comprises water quality sampling device and water concentration pick-up unit; Described water concentration pick-up unit adopts water concentration pick-up unit as above.
The utility model also provides a kind of cuvette, is used for the water concentration pick-up unit; Described cuvette has at least two colorimetric sections, and the light source along described pick-up unit of each described colorimetric section is all not identical to the width of the optical filter of described pick-up unit.
Preferably, the number of described colorimetric section is two, and two described colorimetric sections are located at respectively upper end, the lower end of described cuvette.
Preferably, two described colorimetric sections comprise the first colorimetric section and the second less colorimetric section of width that width is larger, and the width of described the first colorimetric section is two times of width of described the second colorimetric section.
Because above-mentioned water concentration pick-up unit has above-mentioned technique effect, therefore, comprise that the monitoring system of this device and the cuvette in above-mentioned water concentration pick-up unit also should have same technique effect, do not repeat them here.
Description of drawings
Fig. 1 is the structural representation of a kind of water concentration pick-up unit in prior art;
Fig. 2 provides the structural representation of a kind of embodiment of water concentration pick-up unit for the utility model.
Wherein, the Reference numeral in Fig. 1 to Fig. 2 and the corresponding relation between component names are:
The first colorimetric section 21; The second colorimetric section 22.
Embodiment
Core of the present utility model is for providing the water concentration pick-up unit of a kind of cuvette and this cuvette of application, this water concentration pick-up unit realizes that by the colorimetric section that different in width is set multi-pass detects, to reduce the error in testing process, improve the accuracy of testing result.On this basis, another core of the present utility model is for providing a kind of water quality monitoring system that comprises above-mentioned water concentration pick-up unit.
In order to make those skilled in the art understand better the technical solution of the utility model, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 2, Fig. 2 provides the structural representation of a kind of embodiment of water concentration pick-up unit for the utility model.
In a kind of embodiment, as shown in Figure 2, the utility model provides a kind of water concentration pick-up unit for water quality monitoring system, and this water concentration pick-up unit mainly comprises light source 1, cuvette 2, optical filter 3 and detecting device 4.Cuvette 2 has at least two colorimetric sections, and 3 the width along light source 1 to optical filter of each colorimetric section is all not identical.
Adopt this structure, in the course of work, at first testing sample is placed in cuvette 2, open light source 1 and make it send light beam, the testing sample in this light beam irradiates cuvette 2, then pass the final detecting device 4 that arrives of optical filter 3.Determine absorbance A, the light path L of above-mentioned light path, then according to Beer law:
A=K*C*L (wherein K is the constant relevant with wavelength, and C is the COD concentration value) obtains C=A/K*L, obtains final detectable concentration C.
Owing to having the colorimetric section of different in width in above-mentioned cuvette 2, namely adopt different colorimetric sections to carry out colorimetric and can obtain different light path L, like this, when the higher testing sample of detectable concentration, can choose the less colorimetric section of width, obtain less light path L2, with the range ability of expansion pick-up unit; When the lower testing sample of detectable concentration, can choose the larger colorimetric section of width, obtain larger light path L1, to improve the detection sensitivity of pick-up unit, reduce the error in testing process, improve the accuracy of testing result.
Further in scheme, the number of above-mentioned colorimetric section is two, and two colorimetric sections are located at respectively upper end, the lower end of cuvette 2.
Adopt this structure, make above-mentioned cuvette 2 can either satisfy the needs that higher concentration in most cases detects and low concentration detects, the while has again simple in structure, processing and manufacturing process characteristics easily.
Can expect, above-mentioned cuvette 2 is only for having two colorimetric sections, the colorimetric section that it can also arrange three or more different in width, and the processing and fabricating scope of cuvette 2 that is the sort of structure is comparatively complicated.
Further in scheme, above-mentioned two colorimetric sections comprise that the width of the first colorimetric section 21 that width is larger and less the second colorimetric section 22, the first colorimetric sections 21 of width is two times of width of the second colorimetric section 22.
In the structure of above-mentioned cuvette 2, the width difference of two colorimetric sections is too small or excessive, can cause the DeGrain that reduces to detect error or expanded range scope, show through a large amount of experiments, adopt above-mentioned width ratio two colorimetric sections setting comparatively evenly rationally, can either guarantee to choose the effect of the expanded range scope of the second less colorimetric section 22 of width, also can guarantee to choose and have the effect that significantly reduces error when the first larger colorimetric section 21 of width detects.
Certainly, the width of above-mentioned the first colorimetric section 21 and the second colorimetric section 22 is not limited in aforementioned proportion, can also adopt other ratios.
In another kind of embodiment, the number of the light source 1 of above-mentioned water concentration pick-up unit, optical filter 3 and detecting device 4 can be two, two light sources 1, two optical filters 3 and two detecting devices 4 respectively with two corresponding settings of colorimetric section, form the water concentration testing agency of two groups of different light paths.
Adopt this structure, in the use procedure of water concentration pick-up unit, can be respectively all parts position of two groups of water concentration testing agencies be fixed, choose and only need open different light source 1 when not detecting on the same group and get final product, this makes and need not mobile all parts in testing process, and operating process is simple and convenient.
Certainly, above-mentioned water concentration pick-up unit can also include only a light source 1, optical filter 3 and detecting device 4, when choosing the first colorimetric section 21 and detect, light source 1, optical filter 3 and detecting device 4 and the first colorimetric section 21 are arranged side by side, have the water concentration testing agency of larger light path L1 with formation; When choosing the second colorimetric section 22 and detect, light source 1, optical filter 3 and detecting device 4 and the second colorimetric section 22 are arranged side by side, have the water concentration testing agency of less light path L2 with formation.The water concentration pick-up unit of this structure can reduce production cost, but needs the position of constantly mobile a plurality of parts in concrete testing process, makes testing process comparatively loaded down with trivial details.The user can select according to actual needs voluntarily.
In addition, the utility model also provides a kind of water concentration monitoring system, comprises water concentration pick-up unit and water concentration pick-up unit as above.
In addition, the utility model also provides a kind of cuvette, is used for the water concentration pick-up unit, and this cuvette has at least two colorimetric sections, and the light source 1 along pick-up unit of each colorimetric section is all not identical to the width of the optical filter 3 of pick-up unit.
In concrete scheme, the number of above-mentioned colorimetric section is two, and two colorimetric sections are located at respectively upper end, the lower end of cuvette.
A nearlyer step ground, above-mentioned two colorimetric sections comprise that the width of the first colorimetric section 21 that width is larger and less the second colorimetric section 22, the first colorimetric sections 21 of width is two times of width of the second colorimetric section 22.
Because above-mentioned water concentration pick-up unit has above-mentioned technique effect, therefore, comprise that the monitoring system of this device and the cuvette in above-mentioned water concentration pick-up unit also should have same technique effect, do not repeat them here.
Above a kind of cuvette provided by the utility model, water concentration pick-up unit and water quality monitoring system are described in detail.Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (8)
1. a water concentration pick-up unit, comprise the light source (1), cuvette (2), optical filter (3) and the detecting device (4) that are arranged side by side successively; It is characterized in that, described cuvette (2) has at least two colorimetric sections, and the width along described light source (1) to described optical filter (3) of each described colorimetric section is all not identical.
2. water concentration pick-up unit according to claim 1, is characterized in that, the number of described colorimetric section is two, and two described colorimetric sections are located at respectively upper end, the lower end of described cuvette (2).
3. water concentration pick-up unit according to claim 2, it is characterized in that, two described colorimetric sections comprise the first colorimetric section (21) and the second less colorimetric section (22) of width that width is larger, and the width of described the first colorimetric section (21) is two times of width of described the second colorimetric section (22).
4. water concentration pick-up unit according to claim 2, it is characterized in that, the number of described light source (1), optical filter (3) and detecting device (4) is two, two described light sources (1), two described optical filters (3) and two described detecting devices (4) respectively with two corresponding settings of described colorimetric section, form the water concentration testing agency of two groups of different light path L.
5. a water concentration monitoring system, comprise water quality sampling device and water concentration pick-up unit; It is characterized in that, described water concentration pick-up unit adopts water concentration pick-up unit as described in claim 1-4 any one.
6. a cuvette, be used for the water concentration pick-up unit; It is characterized in that, described cuvette has at least two colorimetric sections, and the light source along described pick-up unit of each described colorimetric section (1) is all not identical to the width of the optical filter (3) of described pick-up unit.
7. cuvette according to claim 6, is characterized in that, the number of described colorimetric section is two, and two described colorimetric sections are located at respectively upper end, the lower end of described cuvette.
8. cuvette according to claim 7, it is characterized in that, two described colorimetric sections comprise the first colorimetric section (21) and the second less colorimetric section (22) of width that width is larger, and the width of described the first colorimetric section (21) is two times of width of described the second colorimetric section (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220617187 CN203011829U (en) | 2012-11-20 | 2012-11-20 | Cuvette, water quality concentration detecting device and water quality monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220617187 CN203011829U (en) | 2012-11-20 | 2012-11-20 | Cuvette, water quality concentration detecting device and water quality monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203011829U true CN203011829U (en) | 2013-06-19 |
Family
ID=48603411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220617187 Expired - Lifetime CN203011829U (en) | 2012-11-20 | 2012-11-20 | Cuvette, water quality concentration detecting device and water quality monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203011829U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104777293A (en) * | 2015-04-05 | 2015-07-15 | 浙江大学 | Detection device and detection method |
| CN107340237A (en) * | 2017-09-08 | 2017-11-10 | 中清盈创(深圳)科技有限公司 | Water quality on-line monitoring device based on light emitting diode |
| CN110160971A (en) * | 2019-03-25 | 2019-08-23 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of water quality online analyzer photoelectric colorimetry measuring device and method |
| CN111257260A (en) * | 2020-01-21 | 2020-06-09 | 大连远东兴仪器有限公司 | Device for measuring Fischer-Tropsch wax ultraviolet light stable chromaticity |
| CN115436353A (en) * | 2022-08-31 | 2022-12-06 | 上海博取仪器有限公司 | High-low concentration real-time switching analyzer colorimetric system and using method thereof |
-
2012
- 2012-11-20 CN CN 201220617187 patent/CN203011829U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104777293A (en) * | 2015-04-05 | 2015-07-15 | 浙江大学 | Detection device and detection method |
| CN107340237A (en) * | 2017-09-08 | 2017-11-10 | 中清盈创(深圳)科技有限公司 | Water quality on-line monitoring device based on light emitting diode |
| CN110160971A (en) * | 2019-03-25 | 2019-08-23 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of water quality online analyzer photoelectric colorimetry measuring device and method |
| CN111257260A (en) * | 2020-01-21 | 2020-06-09 | 大连远东兴仪器有限公司 | Device for measuring Fischer-Tropsch wax ultraviolet light stable chromaticity |
| CN115436353A (en) * | 2022-08-31 | 2022-12-06 | 上海博取仪器有限公司 | High-low concentration real-time switching analyzer colorimetric system and using method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203011829U (en) | Cuvette, water quality concentration detecting device and water quality monitoring system | |
| CN101315328B (en) | Gas concentration measuring apparatus and method | |
| TWI266042B (en) | Method to determine the value of process parameters based on scatterometry data | |
| Bieroza et al. | Unravelling organic matter and nutrient biogeochemistry in groundwater-fed rivers under baseflow conditions: uncertainty in in situ high-frequency analysis | |
| WO2009140411A3 (en) | Computer-implemented methods, carrier media, and systems for selecting polarization settings for an inspection system | |
| CN102243069B (en) | Method and device for determining leaf area index | |
| CN110907375B (en) | Full-spectrum water quality online monitoring device and method | |
| KR20100052691A (en) | Measuring apparatus and method of multi gas pollutants using the ndir detector with multi gas filter | |
| CN104330385A (en) | Device and method for detecting cut tobacco blending uniformity online | |
| CN105929032A (en) | On-line monitoring system for non-methane total hydrocarbons | |
| CN112345759B (en) | Method for detecting fluorescence intensity peak | |
| CN101786675A (en) | Device and method for separating multi-parameter wastewater sources | |
| CN102721528A (en) | Test device of optical detector linearity range and test method thereof | |
| CN101907565A (en) | Spectral analysis method capable of measuring chemical oxygen demand and biochemical oxygen demand in waste water simultaneously | |
| CN103868858B (en) | A kind ofly determine the method that saliferous clay dominates salinity spectral response best band | |
| CN101261218A (en) | Textile optical performance parameter measuring equipment based on double-integrating-sphere | |
| CN107643261A (en) | A kind of monitor of long light path White pond DOAS methods measurement dusty gas concentration | |
| CN203011840U (en) | Biological comprehensive toxicity detection device | |
| CN103105362A (en) | Multi-range online water quality detector | |
| CN103983585A (en) | Multi-parameter water quality analyzer | |
| CN103940793B (en) | Fluorescence detecting system and detection method | |
| CN204128960U (en) | A kind of drinks quality sense organ classification quick analytic instrument | |
| CN204694628U (en) | A kind of proportional double light beam spectrophotometric meter device | |
| CN111929262A (en) | Water quality COD prediction method | |
| CN106644995A (en) | Water quality detection system based on ultraviolet visible spectrum detection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |
|
| CX01 | Expiry of patent term |