CN202794013U - Liquid sample pool - Google Patents
Liquid sample pool Download PDFInfo
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- CN202794013U CN202794013U CN 201220238306 CN201220238306U CN202794013U CN 202794013 U CN202794013 U CN 202794013U CN 201220238306 CN201220238306 CN 201220238306 CN 201220238306 U CN201220238306 U CN 201220238306U CN 202794013 U CN202794013 U CN 202794013U
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- liquid sample
- sample pool
- sample
- pool
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Abstract
The utility model discloses a liquid sample pool which comprises a first optical window and a second optical window, wherein a groove is carved in the first optical window; the first optical window and the second optical window are sealed in an overlapping way; and a sample cavity is formed at the groove. When the liquid sample pool is used for measurement, the measurement of a micro-sample can be realized, the measuring error is effectively reduced, reliable reference value among different samples can be achieved, and the measurement efficiency is improved. The dynamic samples can be measured by adopting the flowing manner of the samples.
Description
Technical field
The utility model relates to liquid sample pool, particularly a kind of liquid sample pool that is applicable to far infrared terahertz wave band spectral measurement.
Background technology
The terahertz time-domain spectroscopy system is a kind of coherent detection technology, can obtain simultaneously amplitude and the phase information of terahertz pulse.This technology is utilized terahertz pulse transmission or reflection, record terahertz time-domain electric field waveform, obtain the frequency spectrum of sample through Fast Fourier Transform (FFT), processing and analysis by data, can obtain the optical parametric of sample, such as refractive index, absorption coefficient etc., and then some other important physical chemistry information of acquisition sample.
In terahertz time-domain spectroscopy was measured, different samples had different absorptions to terahertz light.When light can produce corresponding time delay during by certain thickness sample.For the measurement of solution system, the thickness of sample is a key factor.Fluid sample usually adopt far infrared terahertz wave band permeability preferably the organic polymer material such as high purity quartz sample cell or polyethylene plastic bag or teflon load.In order to obtain enough signal intensities, sample cell is generally thinner.Particularly for the aqueous solution system, because water absorbs strongly Terahertz, therefore the thickness of aqueous sample have higher requirement to sample cell generally in micron dimension.
Currently used mode is to measure the signal of a series of different-thickness fluid samples,, carries out corresponding data and processes as reference with the sample of one of them thickness.Because the absolute value of micron order fluid sample thickness is difficult to precision measure, the specific thicknesses measuring repeatability is difficult to guarantee.Therefore, the different sample rooms of homologous series are compared, and tend to produce relatively large deviation.Be the liquid sample pool that adopts conventional infrared spectrum in addition, but need to change one by one sample, measure when can't satisfy a plurality of sample.
Often use now two kinds of devices, a kind of device comprises two sample intermediate plates, the centre accompanies one or several sample sacks, promote the sample intermediate plate by stepper motor, just can change the thickness of sample sack, thereby can contrast reference, but the thickness and precision of sample sack can't guarantee during this measurement device, easily produces error.Another kind of device comprises two optical windows, accompanies pad in two optical windows, is provided with groove at pad, thereby forms sample cavity, and the easy seepage of this device sample is inconvenient to measure.
The utility model content
The technical problems to be solved in the utility model is can't take into account simultaneously control accuracy of detection, a plurality of samples of realization with the defective that batch measurement and not revealing etc. requires in order to overcome prior art, and a kind of liquid sample pool and method thereof that is applicable to the terahertz time-domain spectroscopy measurement is provided.
The utility model solves above-mentioned technical matters by following technical proposals: a kind of liquid sample pool, described liquid sample pool comprises one first optical window, one second optical window, it is characterized in that, be carved with a groove on described the first optical window, described the first optical window and the superimposed sealing of described the second optical window, this groove position forms sample cavity.
Wherein, correspondence position also is carved with a groove on described the second optical window, described the first optical window and the superimposed sealing of described the second optical window, and two groove positions form sample cavity.
Wherein, be formed with at least one passage between described the first optical window and described the second optical window, a port of described passage is communicated with sample cavity, and the another port is in communication with the outside as liquid injection port or flow export.
Wherein, described number of channels be 2 (more than 2 also can), described passage is located along the same line, and forms the sample access way, makes things convenient for the inflow and outflow of sample.
Wherein, be provided with delivery pipe in the described passage, described delivery pipe stretches out in described inlet and described flow export, and described liquid sample pool also comprises a seal member for the mouth of pipe that seals described delivery pipe., delivery pipe can be connected with flow device, and the mobile realization by sample is dynamically or the measurement of fresh sample.
Wherein, described the first optical window and described the second optical window are rectangle, described sample cavity and sample access way form a measuring cell, described inlet and described flow export lay respectively at the both sides of described rectangle, described liquid sample pool comprises a plurality of described measuring cells, and described measuring cell is arranged side by side.By arranging, can be convenient for measuring the effect of the different samples of the same sample of comparison different-thickness or same thickness.
Wherein, described the first optical window and described the second optical window are annular, described sample cavity and sample access way form a measuring cell, described inlet and described flow export lay respectively on the interior ring and outer shroud of described annulus, described liquid sample pool comprises a plurality of described measuring cells, described measuring cell circumferential arrangement.So also can be so that the effect of the different samples of the same sample of measurement comparison different-thickness and same thickness.
Wherein, the thickness of described sample cavity is identical or different.
Wherein, described sample cavity is shaped as circle, ellipse or rectangle.
Wherein, the material of described the first optical window and described the second optical window is light transmissive material.
Wherein, described light transmissive material is tygon, teflon, polystyrene, cycloolefin analog copolymer, silicon chip or quartz.
Wherein, described liquid sample pool is the liquid sample pool that is applicable to the terahertz wave band spectral measurement.
Positive progressive effect of the present utility model is: measure by using the utility model, can effectively reduce measuring error, be worth so that have more reliable reference between the different sample, improve and measure efficient.
Description of drawings
Fig. 1 is the front view of the utility model embodiment 1.
Fig. 2 is the left view of the utility model embodiment 1.
Fig. 3 is the front view of the utility model embodiment 2.
Fig. 4 is the front view of the utility model embodiment 3.
Embodiment
Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.
As shown in Figure 1 and Figure 2, be single measuring cell.1 is optical window, and 2 is sample cavity, and 31 and 32 is passage.Wherein 1 is by two optical windows, the first optical window 11 and the second optical window 12 superimposed being sealed to form, the material of the first optical window 11 and the second optical window 12 generally is comprised of light transmissive material, such as: tygon, teflon, silicon chip, quartz, polystyrene and cycloolefin analog copolymer etc., consider material to the absorption of THz wave and avoid the impact of multipath reflection, the material thickness of the first optical window 11 and the second optical window 12 can be selected between 1～3 millimeter usually.
Be respectively equipped with groove 21 and groove 22 at the first optical window 11 and the second optical window 12, the shape of groove 21 and groove 22 is made as circle, thickness be several microns to the hundreds of micron.After the first optical window 11 and the 12 superimposed sealings of the second optical window, groove 21 and groove 22 form sample cavity 2.
The form of single groove also can be adopted in this area, forms sample cavity 2 by groove 21 and the second optical window 12, perhaps forms sample cavity 2 by groove 22 and the first optical window 11.
The shape that it will be understood by those skilled in the art that sample cavity 2 can arbitrarily change, and adopts the circular sample chamber herein.
When testing, sample flows into sample cavity 2 by passage 31, and after being completed, sample flows out sample cavity 2 by passage 32, also can flow into sample cavity 2 by passage 32, flows out sample cavity 2 by passage 31.Also can continually flow, measure the sample that flows.
As shown in Figure 3, form a measuring cell by passage 31, passage 32 and sample cavity 2, a plurality of measuring cells are arranged side by side in the rectangular optical window 1.Wherein, passage 31 and passage 32 lead to respectively the both sides of rectangular optical window 1.The thickness of sample cavity 2 can be identical, can contrast effectively efficiently different samples like this.Sample cavity 2 also can be different-thickness, can make things convenient for the parameter in the comparative sample different-thickness situation.
Embodiment 3
As shown in Figure 4, form a measuring cell by passage 31, passage 32 and sample cavity 2, a plurality of measuring cell circumferential arrangement in the annular optical window 1, wherein, passage 31 and passage 32 lead to respectively interior ring and the outer shroud of annular optical window 1.The thickness of sample cavity 2 can be identical, can contrast effectively efficiently different samples like this.Sample cavity 2 also can be different-thickness, can make things convenient for the parameter in the comparative sample different-thickness situation.
Although more than described embodiment of the present utility model, it will be understood by those of skill in the art that these only illustrate, protection domain of the present utility model is limited by appended claims.Those skilled in the art can make various changes or modifications to these embodiments under the prerequisite that does not deviate from principle of the present utility model and essence, but these changes and modification all fall into protection domain of the present utility model.
Claims (12)
1. liquid sample pool, described liquid sample pool comprises one first optical window, one second optical window, it is characterized in that, be carved with a groove on described the first optical window, described the first optical window and the superimposed sealing of described the second optical window, this groove position forms sample cavity.
2. liquid sample pool as claimed in claim 1 is characterized in that, correspondence position also is carved with a groove on described the second optical window, described the first optical window and the superimposed sealing of described the second optical window, and two groove positions form sample cavity.
3. liquid sample pool as claimed in claim 1, it is characterized in that, be formed with at least one passage between described the first optical window and described the second optical window, a port of described passage is communicated with sample cavity, and the another port is in communication with the outside as liquid injection port or flow export.
4. liquid sample pool as claimed in claim 3 is characterized in that, described number of channels is 2, and described two passages are located along the same line, and forms the sample access way.
5. liquid sample pool as claimed in claim 4, it is characterized in that, be provided with delivery pipe in the described passage, described delivery pipe stretches out in described inlet and described flow export, and described liquid sample pool also comprises a seal member for the mouth of pipe that seals described delivery pipe.
6. liquid sample pool as claimed in claim 5, it is characterized in that, described the first optical window and described the second optical window are rectangle, described sample cavity and two passages form a measuring cell, described inlet and described flow export lay respectively at the both sides of described rectangle, described liquid sample pool comprises a plurality of described measuring cells, and described measuring cell is arranged side by side.
7. liquid sample pool as claimed in claim 5, it is characterized in that, described the first optical window and described the second optical window are annular, described sample cavity and two passages form a measuring cell, described inlet and described flow export lay respectively on the interior ring and outer shroud of described annulus, described liquid sample pool comprises a plurality of described measuring cells, described measuring cell circumferential arrangement.
8. such as the described liquid sample pool of any one among the claim 1-7, it is characterized in that, the thickness of described sample cavity is identical or different.
9. such as the described liquid sample pool of any one among the claim 1-7, it is characterized in that, described sample cavity be shaped as circle, ellipse, rectangle.
10. such as the described liquid sample pool of any one among the claim 1-7, it is characterized in that, the material of described the first optical window and described the second optical window is light transmissive material.
11. liquid sample pool as claimed in claim 10 is characterized in that, described light transmissive material is tygon, teflon, polystyrene, cycloolefin analog copolymer, silicon chip or quartz.
12. such as the described liquid sample pool of any one among the claim 1-7, it is characterized in that, described liquid sample pool is the liquid sample pool that is applicable to the terahertz wave band spectral measurement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220238306 CN202794013U (en) | 2012-05-23 | 2012-05-23 | Liquid sample pool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220238306 CN202794013U (en) | 2012-05-23 | 2012-05-23 | Liquid sample pool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202794013U true CN202794013U (en) | 2013-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220238306 Expired - Fee Related CN202794013U (en) | 2012-05-23 | 2012-05-23 | Liquid sample pool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202794013U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706804A (en) * | 2012-05-23 | 2012-10-03 | 中国科学院上海应用物理研究所 | Liquid sample cell |
| CN103245540A (en) * | 2013-05-07 | 2013-08-14 | 中国石油大学(北京) | Hydrate reaction kettle suitable for direct measurement in terahertz spectrum |
| CN103808680A (en) * | 2014-03-12 | 2014-05-21 | 大连民族学院 | Detection method with ultraviolet-visible absorption spectrum of animal oil |
| CN110632105A (en) * | 2019-09-17 | 2019-12-31 | 东南大学 | Liquid sample cavity for transmission electron microscope characterization and preparation method thereof |
-
2012
- 2012-05-23 CN CN 201220238306 patent/CN202794013U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706804A (en) * | 2012-05-23 | 2012-10-03 | 中国科学院上海应用物理研究所 | Liquid sample cell |
| CN103245540A (en) * | 2013-05-07 | 2013-08-14 | 中国石油大学(北京) | Hydrate reaction kettle suitable for direct measurement in terahertz spectrum |
| CN103808680A (en) * | 2014-03-12 | 2014-05-21 | 大连民族学院 | Detection method with ultraviolet-visible absorption spectrum of animal oil |
| CN110632105A (en) * | 2019-09-17 | 2019-12-31 | 东南大学 | Liquid sample cavity for transmission electron microscope characterization and preparation method thereof |
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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: 20130313 Termination date: 20130523 |