CN202886269U - Multi-channel photoelectric direct reading spectrometer - Google Patents
Multi-channel photoelectric direct reading spectrometer Download PDFInfo
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- CN202886269U CN202886269U CN 201220417062 CN201220417062U CN202886269U CN 202886269 U CN202886269 U CN 202886269U CN 201220417062 CN201220417062 CN 201220417062 CN 201220417062 U CN201220417062 U CN 201220417062U CN 202886269 U CN202886269 U CN 202886269U
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- direct reading
- photoelectric direct
- reading spectrometer
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Abstract
The utility model discloses a multi-channel photoelectric direct reading spectrometer which comprises a constant-temperature chassis, wherein a laser chamber and a light splitting chamber are located on the left and right sides of a chassis partition plate; a condenser is arranged on the chassis partition plate; and a data processing unit is electrically connected with the light splitting chamber through a measurement and control unit. The multi-channel photoelectric direct reading spectrometer disclosed by the utility model has the beneficial effects of compact structure and high measurement accuracy.
Description
Technical field
The utility model relates to the spectral analysis technique application, particularly a kind of multichannel light photoelectric direct reading spectrometer.
Background technology
In metallurgy industry, how accurately ferrous metal and non-ferrous metal being carried out constituent analysis is a stubborn problem very.Spectrographic method is present the most widely used analytical approach, yet because optical instrument more complicated all, it is high to make precision, and the computing of testing result is very loaded down with trivial details, so the application in showing production run is very limited.
Summary of the invention
The purpose of this utility model is in order to address the above problem, to have designed a kind of multichannel light photoelectric direct reading spectrometer.
Realize that the above-mentioned purpose the technical solution of the utility model is, a kind of multichannel light photoelectric direct reading spectrometer comprises thermostatic machine case, and excitation chamber and light-splitting chamber lay respectively at the left and right sides of cabinet dividing plate, the cabinet dividing plate is provided with condenser, and data processing unit is electrically connected with light-splitting chamber by measurement and control unit.
Be provided with spark table in the described excitation chamber, the metal cover board of carrying sample is placed on the spark table, and sample is connected with the negative pole of power supply, and spark table is connected with the positive pole of power supply, and the argon gas imported valve is installed on the inwall of excitation chamber.
Described spark table bonding insulation sleeve on the stainless steel sample stage consists of, and electrode is housed in the insulation sleeve.
Be provided with entrance slit and concave grating in the described light-splitting chamber, condenser, entrance slit and concave grating place on the input path, all are provided with exit slit on many light paths by the concave grating reflection, and each exit slit is facing to a photomultiplier.
The place ahead of described concave grating is fixed with tired lamp.
Evacuator also is installed in the described light-splitting chamber, can guarantees to be in all the time vacuum state in the light-splitting chamber, avoided the impact of oxygen on spectrum.
Described photomultiplier is electrically connected with measurement and control unit respectively.
Described measurement and control unit is connected and composed successively by signal amplification circuit, filtering circuit and A/D converter.
Described data processing unit is connected and composed respectively at storer, input equipment, display screen and power supply by the intelligent digital arithmetical unit.
The multichannel light photoelectric direct reading spectrometer that utilizes the technical solution of the utility model to make, reasonable in design, measuring accuracy is high, can be automatically the element spectral line of sample be carried out rigorous analysis, directly obtains a result, and need not to think participation, and measuring accuracy has obtained guarantee.
Description of drawings
Fig. 1 is the structural representation of multichannel light photoelectric direct reading spectrometer described in the utility model;
Fig. 2 is the structural representation of measurement and control unit described in the utility model;
Fig. 3 is data processing unit structural representation described in the utility model.
Among the figure, 1, thermostatic machine case; 2, excitation chamber; 3, light-splitting chamber; 4, cabinet dividing plate; 5, condenser; 6, data processing unit; 7, measurement and control unit; 8, A/D converter; 9, carrying sample; 10, metal cover board; 11, argon gas imported valve; 12, stainless steel sample stage; 13, insulation sleeve; 14, electrode; 15, entrance slit; 16, concave grating; 17, exit slit; 18, photomultiplier; 19, tired lamp; 20, evacuator; 21, signal amplification circuit; 22, filtering circuit; 23, intelligent digital arithmetical unit; 24, storer; 25, input equipment; 26, display screen; 27, power supply.
Embodiment
Below in conjunction with accompanying drawing the utility model is specifically described, the structural representation of multichannel light photoelectric direct reading spectrometer described in the utility model such as Fig. 1, as shown in the figure, a kind of multichannel light photoelectric direct reading spectrometer, comprise thermostatic machine case 1, excitation chamber 2 and light-splitting chamber 3 lay respectively at the left and right sides of cabinet dividing plate 4, and the cabinet dividing plate is provided with condenser 5, and data processing unit 6 is electrically connected with light-splitting chamber by measurement and control unit 7.Wherein, be provided with spark table 8 in the described excitation chamber, the metal cover board 10 of carrying sample 9 is placed on the spark table, and sample is connected with the negative pole of power supply, and spark table is connected with the positive pole of power supply, and argon gas imported valve 11 is installed on the inwall of excitation chamber; Described spark table bonding insulation sleeve 13 on stainless steel sample stage 12 consists of, and electrode 14 is housed in the insulation sleeve; Be provided with entrance slit 15 and concave grating 16 in the described light-splitting chamber, condenser, entrance slit and concave grating place on the input path, all be provided with exit slit 17 on many light paths by the concave grating reflection, and each exit slit is facing to a photomultiplier 18; The place ahead of described concave grating is fixed with tired lamp 19; Evacuator 20 also is installed in the described light-splitting chamber; Described photomultiplier is electrically connected with measurement and control unit respectively; Described measurement and control unit is connected and composed successively by signal amplification circuit 21, filtering circuit 22 and A/D converter 28; Described data processing unit is connected and composed respectively at storer 24, input equipment 25, display screen 26 and power supply 27 by intelligent digital arithmetical unit 23.
In the technical program, light splitting indoor location optical system, optical system is comprised of condenser, entrance slit, concave grating, tired lamp, exit slit and photomultiplier.Light-splitting chamber places in the cabinet of local constant temperature, to guarantee the stable of optical system.
On the condenser fitting machine separator for container, it separates light-splitting chamber and arc-spark stand.The mixed light that sends after sample is excited mainly is to strengthen the slit illumination effect by condenser optically focused (having the effect of sealing light-splitting chamber concurrently) irradiation entrance slit.
Object-image relation between entrance slit and the spectral line.The quality of entrance slit and the quality of spectral line have direct relation, and its width is 20 ± 3 μ m.Entrance slit can move reciprocatingly along the tangential direction of Rowland circle under computer control, realizes that spectral line is to the scanning of exit slit relative position.Concave grating is the cardiac component of beam splitting system, and Main Function is light splitting and imaging.Its bearing accuracy is very important, has done accurate adjustment before instrument dispatches from the factory, and has adopted reliable connected mode, even there is very large vibration also can not change its position.Therefore device operator need not be carried out any adjustment to grating, and bans the use of any article and touch the grating ruling face.Attention: even displacement has occured grating, the operator oneself does not adjust yet, and can only be reorientated with instrumentation by experienced personnel by manufacturer.
There is a miniature lamp in concave grating the place ahead, and it is powered specially by measurement and control unit.Light at off position at ordinary times always, be used for photomultiplier is carried out cathode fatigue, therefore be commonly called as tired lamp.Lighting or extinguishing of tired lamp controlled by measurement and control unit.
Exit slit is installed on the Rowland circle track, and its width has three kinds of 35 μ m, 55 μ m and 75 μ m, and its position was transportable before determining.It and selected analysis spectral line have been aimed at before instrument dispatches from the factory, and be securely fixed on the Rowland circle track, do not needed generally speaking the user to adjust.
Corresponding each exit slit is equipped with a photomultiplier, and it converts light signal to the with it corresponding current signal of intensity under the effect of high direct voltage.
In order to ensure safety, sample connects negative pole and idiostatic with the earth in excitation chamber, and electrode connects positive pole.One condenser is housed between spark table and light-splitting chamber, becomes the boundary of light-splitting chamber and arc-spark stand, both strengthened the illumination to entrance slit, stop again air, argon gas to be leaked to light-splitting chamber.
Argon gas is the protection gas of excitation process, and it washes away the air of spark chamber (discharging gap), so that sample surfaces is not oxidized, can avoid oxygen to the absorption of shortwave radiation simultaneously.Even work as instrument in waiting status, the argon cleaning spark chamber of 1L/min flow also should be arranged.
Technique scheme has only embodied the optimal technical scheme of technical solutions of the utility model; some changes that those skilled in the art may make some part have wherein all embodied principle of the present utility model, belong within the protection domain of the present utility model.
Claims (9)
1. multichannel light photoelectric direct reading spectrometer, comprise thermostatic machine case (1), it is characterized in that, excitation chamber (2) and light-splitting chamber (3) lay respectively at the left and right sides of cabinet dividing plate (4), the cabinet dividing plate is provided with condenser (5), and data processing unit (6) is electrically connected with light-splitting chamber by measurement and control unit (7).
2. multichannel light photoelectric direct reading spectrometer according to claim 1, it is characterized in that, be provided with spark table in the described excitation chamber, the metal cover board (10) of carrying sample (9) is placed on the spark table, and sample is connected with the negative pole of power supply, spark table is connected with the positive pole of power supply, and argon gas imported valve (11) is installed on the inwall of excitation chamber.
3. multichannel light photoelectric direct reading spectrometer according to claim 2 is characterized in that, described spark table consists of at the upper bonding insulation sleeve (13) of stainless steel sample stage (12), and electrode (14) is housed in the insulation sleeve.
4. multichannel light photoelectric direct reading spectrometer according to claim 1, it is characterized in that, be provided with entrance slit (15) and concave grating (16) in the described light-splitting chamber, condenser, entrance slit and concave grating place on the input path, all be provided with exit slit (17) on many light paths by the concave grating reflection, and each exit slit is facing to a photomultiplier (18).
5. multichannel light photoelectric direct reading spectrometer according to claim 4 is characterized in that, the place ahead of described concave grating is fixed with tired lamp (19).
6. multichannel light photoelectric direct reading spectrometer according to claim 4 is characterized in that, evacuator (20) also is installed in the described light-splitting chamber.
7. according to claim 1 or 4 described multichannel light photoelectric direct reading spectrometers, it is characterized in that described photomultiplier is electrically connected with measurement and control unit respectively.
8. multichannel light photoelectric direct reading spectrometer according to claim 1 is characterized in that, described measurement and control unit is connected and composed successively by signal amplification circuit (21), filtering circuit (22) and A/D converter (8).
9. multichannel light photoelectric direct reading spectrometer according to claim 1, it is characterized in that described data processing unit is connected and composed respectively at storer (24), input equipment (25), display screen (26) and power supply (27) by intelligent digital arithmetical unit (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220417062 CN202886269U (en) | 2012-08-22 | 2012-08-22 | Multi-channel photoelectric direct reading spectrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220417062 CN202886269U (en) | 2012-08-22 | 2012-08-22 | Multi-channel photoelectric direct reading spectrometer |
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| CN202886269U true CN202886269U (en) | 2013-04-17 |
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| CN 201220417062 Expired - Fee Related CN202886269U (en) | 2012-08-22 | 2012-08-22 | Multi-channel photoelectric direct reading spectrometer |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439272A (en) * | 2013-08-31 | 2013-12-11 | 浙江泰坦股份有限公司 | Multi-channel multi-component dye liquor concentration detection device and method based on spectrophotometric method |
| CN103969245A (en) * | 2014-05-20 | 2014-08-06 | 江苏鑫知源仪器有限公司 | Vacuum photoelectric direct-reading spectrometer |
| CN104267004A (en) * | 2014-10-24 | 2015-01-07 | 合肥卓越分析仪器有限责任公司 | Sample excitation system for photoelectric direct-reading spectrometer |
| CN104280379A (en) * | 2014-10-24 | 2015-01-14 | 合肥卓越分析仪器有限责任公司 | Integrated photoelectric direct-reading spectrum analyzer |
| CN104330366A (en) * | 2014-10-24 | 2015-02-04 | 合肥卓越分析仪器有限责任公司 | Split type photoelectric direct-reading spectrum analyzer |
-
2012
- 2012-08-22 CN CN 201220417062 patent/CN202886269U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439272A (en) * | 2013-08-31 | 2013-12-11 | 浙江泰坦股份有限公司 | Multi-channel multi-component dye liquor concentration detection device and method based on spectrophotometric method |
| CN103439272B (en) * | 2013-08-31 | 2016-12-28 | 浙江泰坦股份有限公司 | Multi-channel multi-component dye liquor concentration detection device based on spectrophotography and method |
| CN103969245A (en) * | 2014-05-20 | 2014-08-06 | 江苏鑫知源仪器有限公司 | Vacuum photoelectric direct-reading spectrometer |
| CN103969245B (en) * | 2014-05-20 | 2016-03-23 | 江苏鑫知源仪器有限公司 | A kind of vacuum photo-electric direct reading spectrometer |
| CN104267004A (en) * | 2014-10-24 | 2015-01-07 | 合肥卓越分析仪器有限责任公司 | Sample excitation system for photoelectric direct-reading spectrometer |
| CN104280379A (en) * | 2014-10-24 | 2015-01-14 | 合肥卓越分析仪器有限责任公司 | Integrated photoelectric direct-reading spectrum analyzer |
| CN104330366A (en) * | 2014-10-24 | 2015-02-04 | 合肥卓越分析仪器有限责任公司 | Split type photoelectric direct-reading spectrum analyzer |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20130417 Termination date: 20130822 |