CN201335808Y - Double-wavelength optical detection device - Google Patents
Double-wavelength optical detection device Download PDFInfo
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- CN201335808Y CN201335808Y CNU2009201290491U CN200920129049U CN201335808Y CN 201335808 Y CN201335808 Y CN 201335808Y CN U2009201290491 U CNU2009201290491 U CN U2009201290491U CN 200920129049 U CN200920129049 U CN 200920129049U CN 201335808 Y CN201335808 Y CN 201335808Y
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- cuvette
- mount pad
- assembly
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- photodiode
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Abstract
The utility model discloses a double-wavelength optical detection device, which comprises an optical assembly, a cuvette assembly and an optical detection assembly, wherein a light source is arranged in the optical assembly; two light beams with different wavelengths can be emitted by the light source; and the two beams can pass through a cuvette in parallel after passing through a colorimetric lens in the cuvette assembly and are selectively absorbed by a filter lens of the optical detection assembly respectively. Compared with the prior art, the double-wavelength optical detection device can be used for detecting turbid samples or mixture samples with superposing absorption spectra. The device also has a good effect for detecting main-peak substance when the main peak has a shoulder peak due to the presence of impurities.
Description
Technical field:
The utility model belongs to online Water Test Kits, is specially a kind of dual wavelength optical pick-up unit, is mainly used in various solution are carried out the dual wave length spectrophotometry photometric measurement, and calculate the corresponding concentration of solution.
Background technology:
Spectrophotometric method is a kind of by measuring the absorbance log of measured matter light in certain wave strong point or certain wavelength coverage, this material is carried out the method for qualitative and quantitative analysis, it is mainly used in the various water analyses, spectrophotometer then is to utilize spectrophotometric method material to be carried out a kind of instrument of quantitative and qualitative analysis, its cardinal principle is: adopt the light source that can produce a plurality of wavelength, by serial light-dividing device, thereby produce the light source of specific wavelength, after light source sees through the sample of test, the part light source is absorbed, the light absorption value of calculation sample, thus change into the concentration of sample, and the light absorption value of sample is directly proportional with the concentration of sample.
Yet present spectrophotometer but can not be measured the muddy water quality sample, can not measure the overlapped blend sample of absorption spectrum.
Summary of the invention:
For addressing the above problem, the purpose of this utility model is to provide a kind of dual wavelength optical pick-up unit.
For achieving the above object, the utility model is mainly by the following technical solutions:
A kind of dual wavelength optical pick-up unit, comprise optical module, cuvette assembly and optical detection assembly, be provided with lamp source (120) in the described optical module, the light of two kinds of different wave lengths can be sent in this lamp source (120), pass cuvette (117) than color lens (213) back is parallel in the process cuvette assembly, and select to absorb by optical filtering (203), (205) of optical detection assembly respectively.
Described lamp source (120) is an xenon lamp.
Described optical module is made of lampshade (119), lamp source (120), lamp source mount pad (121) and lamp source holder (122), wherein have an aperture on the lampshade (119), the light that lamp source (120) is produced projects by above-mentioned aperture on the ratio color lens (213) of cuvette assembly, will put light and transfer directional light to and pass cuvette (117).
Described cuvette assembly is made of cuvette mount pad (112), sealing adaptor (113), sealing adaptor holder (114), cuvette mount pad (115), cuvette mount pad (116), cuvette (117), thermal insulation board (118), described cuvette (117) is installed in cuvette mount pad (112), cuvette mount pad (115) and the cuvette mount pad (116), its upper end is connected with sealing adaptor (113), and the lower end is connected with thermal insulation board (118).
Described optical detection assembly is by photodiode (202), optical filtering (203), photodiode (204), optical filtering (205), mirror mount pad (206), spectroscope (207) and condenser lens (208) constitute, after wherein the directional light of process cuvette assembly focuses on by condenser lens (208), partly penetrate and half reflection by spectroscope (207) again, respectively by optical filtering (203), (205) be transmitted into photodiode (202) and photodiode (204), carry out luminous intensity measurement through photodiode (202) and photodiode (204), and deliver to amplification plate (105) and amplify.
Compared with prior art, the utility model can be measured muddy sample, also can measure the overlapped blend sample of absorption spectrum, and when impurity made main peak produce acromion, this device also had good mensuration main peak material effect.
Description of drawings:
Fig. 1 is the utility model pick-up unit front view.
Fig. 2 is the utility model vertical view.
Figure acceptance of the bid identification explanation: shell 101, base 102, amplify plate gib screw 103, photosensitive cover 104, amplify plate 105, spectroscope mount pad 106, spectroscope holder 107, optical mount 108, optical lens mount pad 109, optical lens holder 110, mirror mount pad 111, cuvette mount pad 112, sealing adaptor 113, sealing adaptor holder 114, cuvette mount pad 115, cuvette mount pad 116, cuvette 117, thermal insulation board 118, lampshade 119, lamp source 120, lamp source mount pad 121, lamp source holder 122, photodiode holder 201, photodiode 202, optical filtering 203, photodiode 204, optical filtering 205, mirror mount pad 206, spectroscope 207, condenser lens 208, add sheet holder 209, add sheet 210, towards spring 211, cuvette holder 212, than color lens 213, than color lens holder 214, cuvette mount pad 215.
Embodiment:
Below in conjunction with the drawings and specific embodiments the utility model is described further.
See also Fig. 1～shown in Figure 2, the utility model provides a kind of dual wavelength optical pick-up unit, mainly by shell 101, base 102 and be installed in shell 101, optical module in the base 102, cuvette assembly and optical detection assembly are formed, wherein optical module can send the light of various wavelength, these light are through the cuvette assembly, focus on the parallel cuvette that passes in back, wherein the light λ 1 of two kinds of different wave lengths and λ 2 have absorption in various degree, select these two kinds light λ 1 that were absorbed and λ 2 by the optical filtering of optical detection assembly then, by detecting and calculate corresponding absorbance, measure light intensity by photodiode then and deliver to and amplify plate and amplify and deliver to processor again and calculate solution absorbency, finally be converted into the concentration of solution.
Wherein optical module mainly is made of lampshade 119, lamp source 120, lamp source mount pad 121 and lamp source holder 122, xenon lamp is adopted in described lamp source 120, can send the light of various different wave lengths by this xenon lamp, and this xenon lamp is fixedly mounted in lamp source holder 122 and the lamp source mount pad 121, its external stability has lampshade 119, and described lampshade 119 is provided with an aperture, and this aperture is corresponding with the xenon lamp position, by this aperture, the light transmissive that xenon lamp sends is gone out.
Described cuvette assembly is mainly by cuvette mount pad 112, sealing adaptor 113, sealing adaptor holder 114, cuvette mount pad 115, cuvette mount pad 116, cuvette 117, thermal insulation board 118, add sheet holder 209, add sheet 210, towards spring 211, cuvette holder 212, than color lens 213, constitute than color lens holder 214 and cuvette mount pad 215, wherein be installed in than on the color lens holder 214 than color lens 213, and be fixed in the cuvette mount pad 116 than color lens holder 214, between cuvette mount pad 116 and cuvette holder 212, be fixed with cuvette 117, be loaded with solution to be detected in this cuvette 117, described cuvette 117 upper ends are connected with sealing adaptor 113, by sealing joint 113 solution to be detected of can packing into, and sealing adaptor 113 is fixed in the sealing adaptor holder 114.
Wherein the cuvette assembly also can carry out constant temperature measurement to solution to be measured by heating plate and temperature sensor, improve measuring accuracy, here the lower end of cuvette 117 is connected with thermal insulation board 118, loses to prevent the too fast conduction of heat from giving base, influences the firing rate and the accuracy of cuvette assembly.In addition, by cuvette holder 212 and fixing towards spring 211, and the both sides of cuvette 117 also are fixed with and add sheet holder 209 and add sheet 210 at cuvette 117.
Described optical detection assembly comprises photosensitive cover 104, amplify plate 105, spectroscope mount pad 106, spectroscope holder 107, optical mount 108, optical lens mount pad 109, optical lens holder 110, mirror mount pad 111, photodiode holder 201, photodiode 202, optical filtering 203, photodiode 204, optical filtering 205, mirror mount pad 206, spectroscope 207, condenser lens 208 etc., wherein amplifying plate 105 is fixed on the photosensitive cover 104 by amplifying plate gib screw 103, and with spectroscope mount pad 106, spectroscope holder 107 links to each other, and be provided with mirror mount pad 111 in the photosensitive cover 104, be installed with photodiode holder 201 in this mirror mount pad 111, photodiode 202 and optical filtering 203.
Wherein said mirror mount pad 111 is fixed on the optical mount 108, in the middle of the described optical mount 108 spectroscope 207 is installed, on these spectroscope 207 optical path directions, optical lens mount pad 109 is installed also, optical lens holder 110, and at optical lens mount pad 109, condenser lens 208 is installed in the optical lens holder 110, enter the light beam of optical detection assembly by condenser lens 208, carry out beam split through spectroscope 207, because half penetrates spectroscope 207, one half reflection, therefore then light microscopic 203 outputs after filtration of the light that penetrates, detect light intensity and produce electric signal by photodiode 202, and send to and amplify plate 105 and amplify and deliver to processor again and calculate solution absorbency, finally be converted into the concentration of solution; In addition, detect light intensity and produce electric signal, and send to and amplify plate 105 and amplify and deliver to processor again and calculate solution absorbency, finally be converted into the concentration of solution by photodiode 204 through then light microscopic 205 outputs after filtration of the light beam after the reflection.
More than dual wavelength optical pick-up unit provided by the utility model is 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; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (5)
1, a kind of dual wavelength optical pick-up unit, comprise optical module, cuvette assembly and optical detection assembly, it is characterized in that: be provided with lamp source (120) in the described optical module, the light of two kinds of different wave lengths can be sent in this lamp source (120), pass cuvette (117) than color lens (213) back is parallel in the process cuvette assembly, and select to absorb by optical filtering (203), (205) of optical detection assembly respectively.
2, dual wavelength optical pick-up unit according to claim 1 is characterized in that described lamp source (120) is xenon lamp.
3, dual wavelength optical pick-up unit according to claim 1, it is characterized in that described optical module is made of lampshade (119), lamp source (120), lamp source mount pad (121) and lamp source holder (122), wherein have an aperture on the lampshade (119), the light that lamp source (120) is produced projects by above-mentioned aperture on the ratio color lens (213) of cuvette assembly, will put light and transfer directional light to and pass cuvette (117).
4, dual wavelength optical pick-up unit according to claim 1, it is characterized in that described cuvette assembly is made of cuvette mount pad (112), sealing adaptor (113), sealing adaptor holder (114), cuvette mount pad (115), cuvette mount pad (116), cuvette (117), thermal insulation board (118), described cuvette (117) is installed in cuvette mount pad (112), cuvette mount pad (115) and the cuvette mount pad (116), its upper end is connected with sealing adaptor (113), and the lower end is connected with thermal insulation board (118).
5, dual wavelength optical pick-up unit according to claim 1, it is characterized in that described optical detection assembly is by photodiode (202), optical filtering (203), photodiode (204), optical filtering (205), mirror mount pad (206), spectroscope (207) and condenser lens (208) constitute, after wherein the directional light of process cuvette assembly focuses on by condenser lens (208), partly penetrate and half reflection by spectroscope (207) again, respectively by optical filtering (203), (205) be transmitted into photodiode (202) and photodiode (204), carry out luminous intensity measurement through photodiode (202) and photodiode (204), and deliver to amplification plate (105) and amplify.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201290491U CN201335808Y (en) | 2009-01-05 | 2009-01-05 | Double-wavelength optical detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201290491U CN201335808Y (en) | 2009-01-05 | 2009-01-05 | Double-wavelength optical detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201335808Y true CN201335808Y (en) | 2009-10-28 |
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ID=41287463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201290491U Expired - Lifetime CN201335808Y (en) | 2009-01-05 | 2009-01-05 | Double-wavelength optical detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201335808Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608029A (en) * | 2010-12-24 | 2012-07-25 | 株式会社堀场制作所 | Optical analysis instrument |
| CN104614071A (en) * | 2014-12-09 | 2015-05-13 | 浙江福立分析仪器有限公司 | Miniature optical path structure of spectrophotometer and application method thereof |
| CN105157855A (en) * | 2015-08-17 | 2015-12-16 | 苏州优谱德精密仪器科技有限公司 | Wavelength detection device |
| CN105866034A (en) * | 2016-03-30 | 2016-08-17 | 东华理工大学 | Light absorption information detection apparatus and method of liquid phase sample and gaseous ions thereof |
-
2009
- 2009-01-05 CN CNU2009201290491U patent/CN201335808Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608029A (en) * | 2010-12-24 | 2012-07-25 | 株式会社堀场制作所 | Optical analysis instrument |
| CN102608029B (en) * | 2010-12-24 | 2016-08-24 | 株式会社堀场制作所 | Optical assay device |
| CN104614071A (en) * | 2014-12-09 | 2015-05-13 | 浙江福立分析仪器有限公司 | Miniature optical path structure of spectrophotometer and application method thereof |
| CN105157855A (en) * | 2015-08-17 | 2015-12-16 | 苏州优谱德精密仪器科技有限公司 | Wavelength detection device |
| CN105866034A (en) * | 2016-03-30 | 2016-08-17 | 东华理工大学 | Light absorption information detection apparatus and method of liquid phase sample and gaseous ions thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091028 |