CN200972454Y - Investigating device of rotatory dispersion - Google Patents
Investigating device of rotatory dispersion Download PDFInfo
- Publication number
- CN200972454Y CN200972454Y CN 200620140312 CN200620140312U CN200972454Y CN 200972454 Y CN200972454 Y CN 200972454Y CN 200620140312 CN200620140312 CN 200620140312 CN 200620140312 U CN200620140312 U CN 200620140312U CN 200972454 Y CN200972454 Y CN 200972454Y
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- CN
- China
- Prior art keywords
- polarizer
- mercury lamp
- pressure mercury
- light source
- rotatory dispersion
- 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
The utility model discloses a measuring device for optical rotatory dispersion. The device comprises a light source, a polarizer, a sample tube, an analyzer and a detector in order. The utility model is characterized in that the light source is a high-pressure mercury lamp, and a color filter is provided between the high-pressure mercury lamp and the polarizer. The device has the advantages that because the light source is a high pressure mercury lamp, the detective light has larger intensity and more spectral lines; the color filter which is provided between the high pressure mercury lamp and the polarizer can obtain several kinds of different wavelengths emitted from the high pressure mercury lamp, thus we can measure the rotatory angles of different wavelengths and obtain corresponding optical rotatory dispersion.
Description
Technical field
The utility model relates to a kind of optically-active measurement mechanism, relates in particular to a kind of measurement mechanism of rotatory dispersion.
Background technology
The many materials that run in people's life all have optical activity, and especially organic substance such as crystal, medicine and many liquid substances are as several active substances such as sugar juice, terebinthina, camphors.Material with optical activity, its optical activity is directly proportional with concentration usually, i.e. θ=KCL, wherein θ is an optical activity, and C is the concentration of material, and L is the thickness of solution, and K is a scale-up factor.
The polarimeter that utilizes above-mentioned principle to make is widely used in the production of food industry, pharmaceutical field and research, to the composition of the material that contains optical activity with content carries out quantitatively and the qualitative analysis detection.Traditional optically-active detector is to utilize sodium vapor lamp as detection light source, because the wavelength coverage of sodium vapor lamp is very narrow, so it is also few to detect range of application, and the detection of or material that impurity content many big to colourity also will utilize dithizone to handle, both increased operational sequence, reduced the accuracy that detects again, lead also impacts the health and the environment of human body simultaneously.China Patent No. is the utility model patent of ZL01255794, a kind of near infrared polarimeter is provided, it is made up of control section and light path part, light path part comprises halogen tungsten lamp, the polarizer, observation tube, analyzer and detecting device, need the problem handled with dithizone though solved the detection that measurement is contained the higher sucrose of pigment, but the material scope of its detection is only effective to the material of near-infrared wavelength, and the error of testing result is also relatively large in addition.In the practical application of aspects such as biology, chemical industry, also can measure solid or the optical activity of fluid organic material matter under the multi-wavelength that contains optical activity, thereby determine their parameters such as proportion, purity, concentration and content by the rotatory dispersion of measurement of species.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of measurement mechanism that is widely used in the rotatory dispersion of aspects such as biology, chemical industry.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of measurement mechanism of rotatory dispersion, comprise tactic light source, the polarizer, sample hose, analyzer and detecting device, described light source is a high-pressure sodium lamp, is provided with monochromator between the described high-pressure sodium lamp and the described polarizer.
Described monochromator is a color filter.
Compared with prior art, advantage of the present utility model is simple in structure, and it is convenient to measure, and reliability is higher.In addition, because light source is a high-pressure sodium lamp, so it is bigger that it detects light intensity, the spectral line that detects light is also more, and color filter is set between the high-pressure sodium lamp and the polarizer, can obtain the monochromatic light of several different wave lengths that high-pressure sodium lamp sends, thereby measure material, can obtain corresponding rotatory dispersion for different wavelength angles of rotation.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Embodiment one: a kind of angle of rotation measurement mechanism of multi-wavelength, comprise high-pressure sodium lamp 1, color filter 2, the polarizer 3, sample hose 4, analyzer 5 and the detecting device (figure does not show) arranged in order, during measurement, by changing different color filter 2, change the light wavelength that enters sample hose 4, just can conveniently record the optical value of material, thereby obtain the rotatory dispersion value of material for different wave length.
Claims (2)
1, a kind of measurement mechanism of rotatory dispersion comprises tactic light source, the polarizer, sample hose, analyzer and detecting device, it is characterized in that described light source is a high-pressure sodium lamp, is provided with monochromator between the described high-pressure sodium lamp and the described polarizer.
2, the measurement mechanism of a kind of rotatory dispersion as claimed in claim 1 is characterized in that described monochromator is a color filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620140312 CN200972454Y (en) | 2006-11-24 | 2006-11-24 | Investigating device of rotatory dispersion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620140312 CN200972454Y (en) | 2006-11-24 | 2006-11-24 | Investigating device of rotatory dispersion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200972454Y true CN200972454Y (en) | 2007-11-07 |
Family
ID=38883709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620140312 Expired - Fee Related CN200972454Y (en) | 2006-11-24 | 2006-11-24 | Investigating device of rotatory dispersion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200972454Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183470A (en) * | 2011-03-25 | 2011-09-14 | 成都新三可仪器有限公司 | Checking device and checking method for colorimetric method instrument |
| CN103604751A (en) * | 2013-11-22 | 2014-02-26 | 宁波大学 | Device and corresponding method for measuring optical rotation of transparent film with periodic chiral structure |
-
2006
- 2006-11-24 CN CN 200620140312 patent/CN200972454Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183470A (en) * | 2011-03-25 | 2011-09-14 | 成都新三可仪器有限公司 | Checking device and checking method for colorimetric method instrument |
| CN102183470B (en) * | 2011-03-25 | 2012-07-25 | 成都新三可仪器有限公司 | Checking device and checking method for colorimetric method instrument |
| CN103604751A (en) * | 2013-11-22 | 2014-02-26 | 宁波大学 | Device and corresponding method for measuring optical rotation of transparent film with periodic chiral structure |
| CN103604751B (en) * | 2013-11-22 | 2015-12-02 | 宁波大学 | The device of property measuring period chiral structure transparent membrane optical activity and corresponding method |
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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: 20071107 Termination date: 20111124 |