CN102590538A - Infrared spectrometry-based multi-sample cell automatic exchanging system - Google Patents
Infrared spectrometry-based multi-sample cell automatic exchanging system Download PDFInfo
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- CN102590538A CN102590538A CN2011100068265A CN201110006826A CN102590538A CN 102590538 A CN102590538 A CN 102590538A CN 2011100068265 A CN2011100068265 A CN 2011100068265A CN 201110006826 A CN201110006826 A CN 201110006826A CN 102590538 A CN102590538 A CN 102590538A
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Abstract
The invention discloses an infrared spectrometry-based multi-sample cell automatic exchanging system. The system comprises a multi-sample cell unit, a step motor driver and sensor units; the multi-sample cell unit comprises a background cell and at least one sample cell; the step motor driver is used for driving the multi-sample cell unit; and the sensor units are used for measuring the signals of the multi-sample cell unit. When being used for infrared spectrometry, the multi-sample cell automatic exchanging system utilizes the step motor driver to push the background cell and the sample cells to accurately move for a set distance in a light path, so that a background and a sample can be automatically switched in the light path without opening and manually exchanging the units, consequently, the measuring environment of a measuring room becomes stable, i.e., the real-time measurement of background spectrum and sample spectrum is truly realized, and thereby the accuracy of a measured spectral line is increased.
Description
Technical field
The present invention relates to the infrared spectrometry technology, relate in particular to a kind of automatic contact transformation of many sample cells system based on infrared spectrometry.
Background technology
The infrared spectrometry device has been obtained widely and has been used; What but the sample cell of existing infrared spectrometry device switched employing is the manual switchover mode; Promptly in light path, measure the background pond earlier, remove with handgrip background pond then, put into populated sample cell then.There is following problem in this manual switchover mode:
1. the measurement environment that can't realize measuring chamber is stable.In the switch sample pond, the environment and the external environment of measuring chamber exchange, and cause background to change, and can't realize real-time background truly.
2. can't realize auto injection and cleaning.Because background pond and sample cell need rely on manual switchover, automatic sampling apparatus can't be connected on the sample cell.Sample cell mode is by hand filled and is cleaned.
3. the sample cell of manually loading, measuring samples temperature in real time.
Therefore, need provide a kind of and can realize auto injection and cleaning, realize measuring in real time background spectrum and sample spectra, and then improve many sample cells automatic switchover system of the accuracy of measuring spectral line.
Summary of the invention
The present invention provides a kind of automatic contact transformation of many sample cells system based on infrared spectrometry, and it can realize measuring in real time background spectrum and sample spectra.
In order to achieve the above object, the present invention adopts following technical proposals:
A kind of automatic contact transformation of many sample cells system of infrared spectrometry comprises:
The multidigit sample pool device comprises background pond and at least one sample cell;
Driving device for step-by-step is used to drive said multidigit sample pool device; And
Sensor device is used to measure the signal of said multidigit sample pool device.
As the optimization of technique scheme, said driving device for step-by-step comprises the bearing that stepper motor, the leading screw that is connected with said stepper motor and feed rod, tape spool hold, and controller, wherein,
Said leading screw and feed rod are supported on the bearing that said tape spool holds;
Said stepper motor is electrically connected with said controller.
As the optimization of technique scheme, said sensor device comprises the temperature sensor that is arranged on the bearing that said tape spool holds.
As the optimization of technique scheme, said sensor device also comprises the position transducer that is arranged on the said multidigit sample pool device.
As the optimization of technique scheme, said multidigit sample pool device comprises the sample introduction pipe that is used to said sample cell input sample.
As the optimization of technique scheme, said multidigit sample pool device also comprises at least one nesting tube, said at least one nesting tube and the corresponding one by one setting of said at least one sample cell.
As the optimization of technique scheme, said multidigit sample pool device also comprises transfer valve and total nesting tube, and wherein, said at least one nesting tube is connected to said total nesting tube through said transfer valve.
The automatic contact transformation of many sample cells system based on infrared spectrometry of the present invention is when being used for infrared spectrometry; Its many sample cells automatic switchover system passes through driving device for step-by-step; Promote background pond and sample cell and in light path, accurately move setpoint distance; Realize background and the automatic switchover of sample in light path, need not device for opening and manually change, thereby the measurement environment that realizes measuring chamber is stable; Promptly realize truly real-time measurement background spectrum and sample spectra, and then improve the accuracy of measuring spectral line.
Description of drawings
Fig. 1 is a structural representation of the automatic contact transformation of the many sample cells system based on infrared spectrometry of the present invention.
Fig. 2 is another structural representation of the automatic contact transformation of the many sample cells system based on infrared spectrometry of the present invention.
Fig. 3 is a structural representation again of the automatic contact transformation of the many sample cells system based on infrared spectrometry of the present invention.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not to be used to limit the present invention.
Referring to figs. 1 through Fig. 3, the automatic contact transformation of the many sample cells system based on infrared spectrometry of the present invention comprises:
Multidigit sample pool device 6 comprises background pond 14 and at least one sample cell 15,16;
Driving device for step-by-step 20 is used to drive multidigit sample pool device 6; And
The automatic contact transformation of many sample cells system based on infrared spectrometry of the present invention is when being used for infrared spectrometry; Its many sample cells automatic switchover system passes through driving device for step-by-step; Promote background pond and sample cell and in light path, accurately move setpoint distance; Realize background and the automatic switchover of sample in light path, need not device for opening and manually change, thereby the measurement environment that realizes measuring chamber is stable; Promptly realize truly real-time measurement background spectrum and sample spectra, and then improve the accuracy of measuring spectral line.
Should be understood that the multidigit sample pool device 6 shown in showing like Fig. 1 to Fig. 3 has comprised two sample cells 15 and 16, according to different needs, the quantity of sample cell can be selected.
As a preferred embodiment of the present invention, the bearing 3 and 7 that the leading screw 5 that driving device for step-by-step 20 comprises stepper motor 2, be connected with stepper motor and feed rod 4, tape spool hold, and controller 1, wherein, leading screw 5 and feed rod 4 are supported on the bearing 7 that tape spool holds; Stepper motor 2 is electrically connected with controller 1.Driving device for step-by-step 20 of the present invention is to adopt stepper motor 2 to drive leading screw 5 and feed rod 4, so that moving of multidigit sample pool device 6 is more accurate; Should be understood that the configuration of the driving device for step-by-step 20 here is only as preferred embodiment, rather than be used to limit the concrete configuration of this driving device for step-by-step, it can adopt other configurations that is fit to as required.
Like this; Stepper motor 2 is according to the instruction of controller 1; Drive the rotating leading screw 5 and feed rod 4 that is supported on the bearing 3 and 7 that tape spool holds, this leading screw 5 drives multidigit sample pool device 6 further with feed rod 4, makes background pond 14 and/or sample cell 15 in the multidigit sample pool device 6 arrive predefined position in the light paths; Infrared light sees through background pond 14 or sample cell 15 and gathers light signal, obtains background or sample spectral line.
In order to make the present invention can be implemented in the measurement environment temperature of measuring samples in real time, be used for spectrum and calculate, improve accuracy, as shown in Figures 2 and 3, sensor device of the present invention can comprise the temperature sensor 17 that is arranged on the bearing 7 that tape spool holds.
Further; In order to make the present invention can realize detecting the position of multidigit sample pool device 6; And carry out the automatic switchover of background pond and sample cell according to this positional information; As shown in Figures 2 and 3, sensor device of the present invention can also comprise the position transducer 18 that is arranged on the multidigit sample pool device 6.
As shown in Figures 2 and 3, multidigit sample pool device 6 of the present invention can also comprise the sample introduction pipe 8 that is used to sample cell 15 input samples, to realize the auto injection of sample cell.Be sample cell 15 input samples for ease, sample introduction pipe 8 preferably is arranged on the position corresponding with sample cell 15, and, the sample introduction pipe can be connected with sampling pump 11, to import sample more easily.Preferably, sample introduction pipe 8 can also be connected with sampling pump 10.
Correspondingly, in order to satisfy the demand of automatic cleaning, the present invention gets multidigit sample pool device 6 can also comprise at least one nesting tube 12,13, at least one nesting tube 12,13 and said at least one sample cell 14,15 corresponding one by one setting.Further, multidigit sample pool device 6 of the present invention can also comprise transfer valve 9 and total nesting tube 10, and wherein, said at least one nesting tube 12,13 is connected to said total nesting tube 10 through said transfer valve 9.
The workflow of the automatic contact transformation of many sample cells of the present invention system is summarized as follows:
One, driving device for step-by-step instructs according to controller, and the background pond that drives in the multidigit sample pool device arrives predefined position in the light path, and infrared light sees through the background pond and gathers light signal, obtains the background spectral line.
Two, automatic sample handling system (system that promptly comprises sample introduction pipe, sampling pump etc.) cleans and the filling sample pond according to the controller instruction automatically.
Three, driving device for step-by-step instructs according to controller, and the sample cell that drives in the multidigit sample pool device arrives predefined position in the light path, and infrared light sees through sample cell and gathers light signal, obtains the sample spectral line.
Therefore, the automatic contact transformation of many sample cells of the present invention system has following function and advantage:
One, the measurement environment that realizes measuring chamber is stablized.In the switch sample pond, it is relatively independent that the environment of measuring chamber and external environment keep, and do not exchange, and kept the stable of background, realizes real-time background truly.
Two, realize auto injection and cleaning.Automatically switch because background pond and sample cell rely on, automatic sample handling system can be connected on the sample cell.Sample cell need not manual mode and fills and clean.
Three, the sample cell of loading automatically, the measuring samples temperature is used for spectrum and calculates in real time, improves accuracy.
Above-mentionedly be merely preferred embodiment of the present invention, certainly, with further exploration other embodiments can also be arranged according to actual needs.But, should be clear and definite be that the conversion based on similar above-mentioned or other embodiments with same idea of not explaining out all should be encompassed among the protection domain of claim of the present invention.
Claims (7)
1. the automatic contact transformation of the many sample cells system based on infrared spectrometry is characterized in that, comprising:
The multidigit sample pool device comprises background pond and at least one sample cell;
Driving device for step-by-step is used to drive said multidigit sample pool device; And
Sensor device is used to measure the signal of said multidigit sample pool device.
2. the automatic contact transformation of many sample cells according to claim 1 system is characterized in that said driving device for step-by-step comprises the bearing that stepper motor, the leading screw that is connected with said stepper motor and feed rod, tape spool hold, and controller, wherein,
Said leading screw and feed rod are supported on the bearing that said tape spool holds;
Said stepper motor is electrically connected with said controller.
3. the automatic contact transformation of many sample cells according to claim 2 system is characterized in that, said sensor device comprises the temperature sensor that is arranged on the bearing that said tape spool holds.
4. the automatic contact transformation of many sample cells according to claim 1 system is characterized in that said sensor device also comprises the position transducer that is arranged on the said multidigit sample pool device.
5. according to the automatic contact transformation of the described many sample cells of arbitrary claim in the claim 1 to 4 system, it is characterized in that said multidigit sample pool device comprises the sample introduction pipe that is used to said sample cell input sample.
6. the automatic contact transformation of many sample cells according to claim 5 system is characterized in that said multidigit sample pool device also comprises at least one nesting tube, said at least one nesting tube and the corresponding one by one setting of said at least one sample cell.
7. the automatic contact transformation of many sample cells according to claim 6 system is characterized in that, said multidigit sample pool device also comprises transfer valve and total nesting tube, wherein,
Said at least one nesting tube is connected to said total nesting tube through said transfer valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110006826.5A CN102590538B (en) | 2011-01-13 | 2011-01-13 | The automatic contact transformation system in Multi-example pond based on infrared spectrometry |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110006826.5A CN102590538B (en) | 2011-01-13 | 2011-01-13 | The automatic contact transformation system in Multi-example pond based on infrared spectrometry |
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| CN102590538A true CN102590538A (en) | 2012-07-18 |
| CN102590538B CN102590538B (en) | 2015-10-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103234919A (en) * | 2013-04-16 | 2013-08-07 | 浙江工业大学 | Automatic mass collection method for soil spectrum, and special collection apparatus |
| CN105758699A (en) * | 2016-03-01 | 2016-07-13 | 宁波市机电工业研究设计院有限公司 | Solvent desorbing device and determination method thereof |
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| US4313735A (en) * | 1979-08-22 | 1982-02-02 | Hitachi, Ltd. | Automatic chemical analyzing method and apparatus |
| US5741461A (en) * | 1995-05-19 | 1998-04-21 | Hitachi, Ltd. | Automatic analyzer having cuvette cleaning control device |
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Granted publication date: 20151014 Termination date: 20210113 |