CN203324175U - Ultraviolet and visible spectrophotometer - Google Patents
Ultraviolet and visible spectrophotometer Download PDFInfo
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- CN203324175U CN203324175U CN2013202457934U CN201320245793U CN203324175U CN 203324175 U CN203324175 U CN 203324175U CN 2013202457934 U CN2013202457934 U CN 2013202457934U CN 201320245793 U CN201320245793 U CN 201320245793U CN 203324175 U CN203324175 U CN 203324175U
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- monochromator
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Abstract
The utility model discloses an ultraviolet and visible spectrophotometer, comprising a box body and a display, wherein the display is arranged on the box body; a light source device, a monochromator device, a sample chamber and a detection device are arranged inside the box body; a reflector controlled by a stepper motor is arranged among the light source device, the monochromator device, the sample chamber and the detection device; the light source device comprises a visible light lamp, and an ultraviolet lamp; the visible light lamp is a tungsten lamp or an iodine-tungsten lamp; the ultraviolet lamp is a hydrogen lamp or a deuterium lamp; the monochromator device comprises a monochromator, a prism and a grating, which are orderly arranged; the light source device also comprises a manual light wavelength setting device; the detection device comprises a detector and a galvanometer; the display is a liquid crystal display; and the detection device is provided with an RS-232 signal output interface. The reflector disclosed by the utility model is convenient to adjust, and adjusted by adopting the stepper motor, so that the ultraviolet and visible spectrophotometer is convenient and reliable to adjust, and accurate to measure.
Description
Technical field
The utility model relates to a kind of spectrophotometer, specifically, relates to a kind of ultraviolet-visible pectrophotometer.
Background technology
The principle of work of ultraviolet/visible spectrophotometry is based on lambert-than ear (Lambert-Beer) law, be that material is proportional at the thickness of certain density absorbance and its absorbing medium, the ultraviolet region that its application wavelength coverage is 200～400nm, the visible region of 400～850nm.
The color of material expression characteristics, this is due to they causes to the light selectivity absorption of some specific wavelength in visible ray.In fact, all materials all can be absorbed the light of some wavelength in visible ray and invisible light.But, all light be not all by material absorbing with identical degree.Material shows different receptivities to the light of different wave length, is called selectivity and absorbs.Various materials absorb this character to the selectivity of light, reflected the difference of they intramolecule structures, and the inner structure of various materials has determined that they absorb the selection of different light rays.
Lambert-law of Beer is the basic functional principle of nearly all optic analytical instrument, and it is merged and formed by Lambert law and law of Beer.Lambert law shows: if the concentration of solution is certain, the sample path length that light passes through to it degree of absorption of material is directly proportional.Law of Beer shows: if extinction material is dissolved in the solvent of extinction not, the concentration of absorbance and extinction material is directly proportional.
Ultraviolet-visible spectrophotometry, from since coming out, has had a great development in application facet, especially, on the basis of related discipline development, impels constantly bringing forth new ideas of spectrophotometer instrument, and function is more complete, makes the application of photometry more expand scope.At present, spectrophotometric method has been the every field institute widespread use of each department of industrial or agricultural and scientific research, becomes the strong means of testing that people are engaged in production and scientific research.
But, the general less in existing ultraviolet-visible pectrophotometer sample chamber, reflective mirror can't be regulated its angle, makes the test substances scope little, and accuracy of measurement is poor.
The utility model content
The utility model has overcome shortcoming of the prior art, and a kind of ultraviolet-visible pectrophotometer is provided, and its reflective mirror can be regulated, and the test substances scope is large, and application is extensive, and accuracy of measurement is high, uses simple and reliable.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
A kind of ultraviolet-visible pectrophotometer, comprise casing and display, described display is arranged on described casing, be provided with light supply apparatus, monochromator device, sample chamber and pick-up unit in described casing, the reflective mirror by step motor control is set between described light supply apparatus, monochromator device, sample chamber and pick-up unit.
Further, described light supply apparatus comprises visible lamp and uviol lamp.
Further, described visible lamp is tungsten lamp or iodine-tungsten lamp.
Further, described uviol lamp is hydrogen lamp or deuterium lamp.
Further, described monochromator device comprises monochromator, prism, the grating set gradually.
Further, described light supply apparatus also comprises manual wavelength of light setting device.
Further, described pick-up unit comprises detecting device and galvanometer.
Further, described display is liquid crystal display.
Further, described pick-up unit is provided with the RS-232 signal output interface.
Compared with prior art, the beneficial effects of the utility model are:
A kind of ultraviolet-visible pectrophotometer described in the utility model, reflective mirror is easy to adjust, and reflective mirror adopts stepper motor to regulate, easy to adjust, reliable, measure accurately, can be widely used in the various fields such as organic chemistry, inorganic chemistry, biological chemistry, life science, medicine analysis, food testing, medical and health, oil, environmental protection, agricultural.
The accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, with embodiment mono-of the present utility model, is used from explanation the utility model, does not form to restriction of the present utility model, in the accompanying drawings:
Fig. 1 is a kind of ultraviolet-visible pectrophotometer structural representation described in the utility model;
Fig. 2 is a kind of ultraviolet-visible pectrophotometer electrical schematic diagram described in the utility model.
Wherein, 1---liquid crystal display; 2---light supply apparatus;
3---the monochromator device; 4---sample chamber;
5---pick-up unit; 6---prime amplifier;
7---driver card; 8---microcomputerized controller.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein is only for description and interpretation the utility model, and be not used in restriction the utility model.
Consult Fig. 1, a kind of ultraviolet-visible pectrophotometer described in the utility model, comprise casing and liquid crystal display 1, liquid crystal display 1 is arranged on casing, the operator reads intuitively, accurately, be provided with light supply apparatus 2, monochromator device 3, sample chamber 4 and pick-up unit 5 in casing, the reflective mirror by step motor control is set between light supply apparatus 2, monochromator device 3, sample chamber 4 and pick-up unit 5.
In the present embodiment, light supply apparatus 2 comprises visible lamp and uviol lamp, and visible lamp is tungsten lamp or iodine-tungsten lamp, and uviol lamp is hydrogen lamp or deuterium lamp.
Pick-up unit 5 comprises detecting device and galvanometer, and pick-up unit 5 is provided with the RS-232 signal output interface, can use spectrum difficult to understand to strangle application software instrument is carried out on line operation, and can carry out analyzing and processing to experimental data.
Fig. 2 is a kind of ultraviolet-visible pectrophotometer electrical schematic diagram described in the utility model, and the detected signal of photomultiplier is via prime amplifier 6, and driver card 7 passes to microcomputerized controller 8, by microcomputerized controller 8, controls driver card 7.
Finally it should be noted that: these are only preferred embodiment of the present utility model; be not limited to the utility model; although with reference to embodiment, the utility model is had been described in detail; for a person skilled in the art; its technical scheme that still can put down in writing aforementioned each embodiment is modified; perhaps part technical characterictic wherein is equal to replacement; but all within spirit of the present utility model and principle; any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (8)
1. a ultraviolet-visible pectrophotometer, it is characterized in that: comprise casing and display, described display is arranged on described casing, be provided with light supply apparatus, monochromator device, sample chamber and pick-up unit in described casing, reflective mirror by step motor control is set between described light supply apparatus, monochromator device, sample chamber and pick-up unit, and the monochromator device comprises monochromator, prism, the grating set gradually.
2. a kind of ultraviolet-visible pectrophotometer according to claim 1, it is characterized in that: described light supply apparatus comprises visible lamp and uviol lamp.
3. a kind of ultraviolet-visible pectrophotometer according to claim 2, it is characterized in that: described visible lamp is tungsten lamp or iodine-tungsten lamp.
4. a kind of ultraviolet-visible pectrophotometer according to claim 2, it is characterized in that: described uviol lamp is hydrogen lamp or deuterium lamp.
5. a kind of ultraviolet-visible pectrophotometer according to claim 1, it is characterized in that: described light supply apparatus also comprises manual wavelength of light setting device.
6. a kind of ultraviolet-visible pectrophotometer according to claim 1, it is characterized in that: described pick-up unit comprises detecting device and galvanometer.
7. a kind of ultraviolet-visible pectrophotometer according to claim 1, it is characterized in that: described display is liquid crystal display.
8. a kind of ultraviolet-visible pectrophotometer according to claim 1, it is characterized in that: described pick-up unit is provided with the RS-232 signal output interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202457934U CN203324175U (en) | 2013-05-08 | 2013-05-08 | Ultraviolet and visible spectrophotometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202457934U CN203324175U (en) | 2013-05-08 | 2013-05-08 | Ultraviolet and visible spectrophotometer |
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| Publication Number | Publication Date |
|---|---|
| CN203324175U true CN203324175U (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013202457934U Expired - Fee Related CN203324175U (en) | 2013-05-08 | 2013-05-08 | Ultraviolet and visible spectrophotometer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443035A (en) * | 2016-10-12 | 2017-02-22 | 武汉联宇技术股份有限公司 | On-line analytical instrument for monitoring toxicity of water quality and positioning toxic substance and analytical method |
| CN110346297A (en) * | 2019-07-26 | 2019-10-18 | 安徽科技学院 | One kind studying liquid photo-sensitive characteristic detector based on visible light |
-
2013
- 2013-05-08 CN CN2013202457934U patent/CN203324175U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443035A (en) * | 2016-10-12 | 2017-02-22 | 武汉联宇技术股份有限公司 | On-line analytical instrument for monitoring toxicity of water quality and positioning toxic substance and analytical method |
| CN110346297A (en) * | 2019-07-26 | 2019-10-18 | 安徽科技学院 | One kind studying liquid photo-sensitive characteristic detector based on visible light |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20160508 |
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| CF01 | Termination of patent right due to non-payment of annual fee |