CN103398948B - A kind of ATR for Fourier transform infrared spectrometer pops one's head in - Google Patents
A kind of ATR for Fourier transform infrared spectrometer pops one's head in Download PDFInfo
- Publication number
- CN103398948B CN103398948B CN201310353994.0A CN201310353994A CN103398948B CN 103398948 B CN103398948 B CN 103398948B CN 201310353994 A CN201310353994 A CN 201310353994A CN 103398948 B CN103398948 B CN 103398948B
- Authority
- CN
- China
- Prior art keywords
- light pipe
- lens
- atr
- crystal
- plated film
- 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
Links
Abstract
The invention discloses a kind of ATR for Fourier transform infrared spectrometer to pop one's head in, comprise atr crystal 1, lens 2 and 7, interior plated film light pipe 4, light pipe stationary fixture 3 and 6, infrared sensor 8, enlarge leadingly filtering circuit 9, shell 5.After incident light injects interior plated film light pipe 4, atr crystal 1 is entered after lens 2, crystal is penetrated after crystal 1 internal reflection at least twice, collecting through lens 7 focuses on the photosurface of infrared sensor 8 again, infrared sensor 8 converts light signal to electric signal, then carries out signal amplification conditioning output through enlarge leadingly filtering circuit 9.The present invention utilizes heavy caliber light pipe to carry out the conduction of incident light, improves the utilization factor of luminous energy, adopts infrared sensor built in test mode, decreases optic path loss, therefore, can reach higher detection sensitivity and signal to noise ratio (S/N ratio).The present invention has broad application prospects at numerous areas such as biology, medical science, geology, chemistry, materialogies.
Description
Technical field
The invention belongs to physics photonics, particularly a kind of ATR for Fourier transform infrared spectrometer pops one's head in.
Background technology
Attenuated total reflection (Attenuated Total Reflectance, ATR) spectral technique is a kind of application technology very widely in examination of infrared spectrum technology, and it has become the infrared sample test means of one that ftir analysis test job person often uses.
ATR in actual applications, as one of the important experimental technique of infra-red sepectrometry, just demonstrates the advantage of its uniqueness and wide application prospect from the beginning.Because it does not need by the signal through sample, but obtained the structural information of sample top layer organic component by the reflected signal of sample surfaces.Not only simplify the manufacturing process of sample, and greatly expand the range of application of infra-red sepectrometry.Make the traditional penetrant method of many employings cannot sample preparation, or Sample Preparation Procedure be very complicated, difficulty large and experiment that effect is undesirable becomes possibility.Therefore, the analysis for surface composition of the macromolecule material products such as plastics, fiber, rubber, coating, bonding agent is widely used in.
For ATR, it mainly comprises several large part: light introducing section part, atr crystal, light-output parts, infrared detector and circuit etc.ATR commodity light in the market imports and derives and mainly adopts infrared optical fiber, and it is expensive.Also have small part light import and derive each employing hollow light pipe, because the loss of light is comparatively large, weak output signal, it exports light and generally adopts the MCT detecting device of liquid nitrogen refrigerating to detect, and uses and bothers very much.
Summary of the invention
In order to overcome the deficiency of prior art, present invention achieves a kind of structure simple, with low cost, use convenient ATR.Adopt the hollow light tube of the infrared high reflection film of plating in heavy caliber as light introducing section part, export and then eliminate light-output parts, directly the DLATGS detecting device without the need to liquid nitrogen refrigerating is embedded into the inner detection carrying out light of probe, the minimizing of optic path link, greatly reduce optical energy loss, detecting of signal is more prone to.Therefore, not only cost is low for it, and signal to noise ratio (S/N ratio) is high, easy to use, and it has broad application prospects at numerous areas such as biology, medical science, geology, materialogies.
Technical scheme of the present invention is:
A kind of ATR for Fourier transform infrared spectrometer pops one's head in, and comprises shell 5, atr crystal 1, thoroughly
Mirror 2 and lens 7, interior plated film light pipe 4, light pipe stationary fixture 3 and 6, infrared sensor 8, enlarge leadingly filtering circuit 9;
The both ends open of shell 5, atr crystal 1 is fixed on the opening part of shell 5 one end, lens 2, light pipe
Stationary fixture 3 and 6, the fixing side in the enclosure of interior plated film light pipe 4, lens 2 connect with atr crystal 1, interior plated film light pipe 4 connects with lens 2, and light pipe stationary fixture 3 and 6 is arranged on the two ends of interior plated film light pipe 4, and light pipe stationary fixture 6 is positioned at the opening part of shell 5 other end;
Lens 7, infrared sensor 8, enlarge leadingly filtering circuit 9 be fixing opposite side in the enclosure successively; Lens 7 connect with atr crystal 1;
Atr crystal 1 has two inclined-planes, and two inclined-planes of atr crystal 1 aimed at respectively by lens 2 and lens 7;
After incident light injects interior plated film light pipe 4, atr crystal 1 is entered after lens 2 are coupled, crystal is penetrated after crystal 1 internal reflection at least twice, collecting through lens 7 focuses on the photosurface of infrared sensor 8 again, infrared sensor 8 converts light signal to electric signal, then exports after enlarge leadingly filtering circuit 9 carries out signal amplification filtering.
Described shell 5 is provided with O shape circle mounting groove 10, for mounting O-shaped rings, shell 5 is snugly fitted on tank body or reactor.
Described interior plated film light pipe 4 is made up of quartzy double glazing, and light pipe inwall is coated with rete infrared light all in 4000cm-1 to 400cm-1 wavelength band to high reflectance; Interior plated film light pipe 4 internal diameter is 0.5-5mm.
Described atr crystal 1 comprises the section that at least one has the surface of taper or truncated cone shape, semi-cone angle between 38-50 °, preferred 45° angle; Semi-cone angle refers to the angle between the axis of symmetry of circular cone and the side of circular cone; Atr crystal 1 is made up of ZnSe, adamas, sapphire, KBr or Ge.
Infrared sensor 8 is built in housing 5 by the present invention, through the light that lens 7 converge, directly focuses on the photosurface of infrared sensor 8; Because emergent light does not have the light guide member of photoconductive tube or optical fiber and so on, therefore, greatly reduce the loss of luminous energy, this is very favourable for raising signal to noise ratio (S/N ratio).
The present invention, owing to greatly reducing the loss of luminous energy, therefore, can adopt DLATGS sensor as photo-sensitive cell.Conventional ATR also uses light guide member due to emergent light, and optical energy loss is too large, generally must adopt the high sensitivity MCT sensor of liquid nitrogen refrigerating, use and extremely bother.The present invention then adopts the DLATGS device without the need to refrigeration to carry out photosensitive, uses more convenient.Certainly, the present invention does not get rid of use MCT sensor as photo-sensitive cell.
Enlarge leadingly filtering circuit 9 is also placed in housing 5 by the present invention simultaneously, carries out amplification conditioning nearby to sensor signal, and this is all beneficial for interference such as minimizing lead-in wire, electromagnetism.
Present invention employs the structure being built in probe without outgoing light guide member, infrared sensor, in fact, do not get rid of yet the emergent light after lens 7 is also adopted similar with interior plated film light pipe 4 in plated film light pipe carry out the conduction of emergent light, the mode of emergent light being drawn housing 6 detects.
Housing 5 of the present invention is designed with O type circle mounting groove 10, makes it not only may be used for solid sample and detects, also can seal to be arranged on n-compound reactor and detect liquid.
Compared with prior art, the invention has the beneficial effects as follows:
1, have employed in heavy caliber hollow and plate the conducting parts of infrared high-reflecting film light pipe as incident light, it is large that it possesses luminous flux, the feature that optical energy loss is little.
2, have employed infrared sensor embedding structure, eliminate emergent light conducting parts, not only save cost, and greatly reduce the capacity loss of emergent light, make high s/n ratio, high-sensitivity detection becomes possibility.
3, owing to decreasing light energy losses, make detectable luminous energy comparatively large, the DLATGS infrared sensor without the need to liquid nitrogen refrigerating therefore can be adopted to carry out the detection of light, substantially increase the convenience of use.And current commercial ATR probe generally needs to use the MCT of liquid nitrogen refrigerating to carry out optical signal detecting, use very inconvenience.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present invention.
Wherein, 1-atr crystal, 2-lens, 3-light pipe stationary fixture, 4-interior plated film light pipe, 5-shell, 6-light pipe stationary fixture, 7-lens, 8-infrared sensor, 9-enlarge leadingly filtering circuit, 10-O shape circle mounting groove.
Embodiment
Below in conjunction with accompanying drawing, further detailed description is done to the present invention.
Fig. 1 is one-piece construction schematic diagram of the present invention, the present invention includes shell 5, atr crystal 1, lens 2
With lens 7, interior plated film light pipe 4, light pipe stationary fixture 3 and 6, infrared sensor 8, enlarge leadingly filtering circuit 9; The both ends open of shell 5, atr crystal 1 is fixed on the opening part of shell 5 one end, lens 2, light pipe stationary fixture 3 and 6, the fixing side in the enclosure of interior plated film light pipe 4, lens 2 connect with atr crystal 1, interior plated film light pipe 4 connects with lens 2, light pipe stationary fixture 3 and 6 is arranged on the two ends of interior plated film light pipe 4, and light pipe stationary fixture 6 is positioned at the opening part of shell 5 other end; Lens 7, infrared sensor 8, enlarge leadingly filtering circuit 9 be fixing opposite side in the enclosure successively; Lens 7 connect with atr crystal 1; Atr crystal 1 has two inclined-planes, and two inclined-planes of atr crystal 1 aimed at respectively by lens 2 and lens 7; Shell 5 is provided with O shape circle mounting groove 10, for mounting O-shaped rings, shell 5 is snugly fitted on tank body or reactor.
Light path transfer route is as shown by the arrows in Figure 1: first incident ray enters light pipe 4, atr crystal 1 is entered again through lens 2, on first inclined-plane being irradiated to atr crystal 1 taper after reflection, be irradiated on second inclined-plane of taper, penetrate from atr crystal 1 after this inclined-plane reflects again, then focus on the photosurface of infrared sensor 8 through lens 7.Light path shown in Fig. 1, light there occurs 2 secondary reflections in crystal 1.But in fact, in the design of atr crystal 1 truncated cone shape, as long as change the position of truncated cone, just can there is the reflection of more than 2 times in crystal.Therefore, the right that present patent application will be advocated is not limited to 2 secondary reflections.
What lead-in light parts adopted is interior plated film light pipe 4, and the cleaning of light pipe inwall is smooth, and plates the rete high to infrared reflectivity, thus greatly reduces the energy loss of incident light after interior plated film light pipe 4 inwall multiple reflections.Institute's film plating layer is optimized design mainly for the infrared light in 4000cm-1 ~ 400cm-1 wavelength band.Compared with popping one's head in traditional optical fiber type ATR, because incident light leaded light of the present invention only has a light pipe, and optical fiber type probe mostly is to be made up of multifiber, therefore, lose from reflected energy, the present invention is dominant.In addition, from luminous flux, present invention employs heavy caliber light pipe, therefore, by luminous flux also there is larger advantage.
By the light of interior plated film light pipe 4, be coupled in atr crystal 1 through lens 2.Due to after interior plated film light pipe 4, after part light carries out multiple reflections, some is dispersed, if do not add process direct irradiation to enter atr crystal 1, so will cause the loss of a large amount of luminous energy.The present invention adopts lens 2 to carry out the shaping of light beam, makes that the light after entering atr crystal 1 is as much as possible can be penetrated and be collected from crystal.
From the light of atr crystal 1 outgoing, focus on through lens 7, after lens 7, place infrared sensor 8, the light after lens 7 focus on is radiated on the photosurface of infrared sensor 8, realizes opto-electronic conversion.Current ATR on the market pops one's head in, and export to probe outside and carry out Photoelectric Detection again, and mode of the present invention is probe interior placement infrared sensor to generally adopting optical fiber or light pipe from the light after atr crystal outgoing.Therefore, present invention eliminates one and export optical transmission component, thus reduce due to the energy loss in optical transmission process, be also just equivalent to indirectly improve luminous energy, make high-sensitivity detection become possibility.
At present, existing mode of light being drawn by output gloss light guide member to ATR probe vitro detection on the market, the high sensitivity MCT detecting device of liquid nitrogen refrigerating generally must be adopted to carry out the detection of light signal, and common DLATGS cannot meet the demands.And the present invention, owing to have employed the mode of built-in infrared sensor, decrease the energy loss in optical transmission process, therefore, relative inexpensiveness can be adopted and carry out the detection of light signal without the need to the DLATGS sensor that refrigeration uses.Thus, element required for the present invention is few, and sensor price used is low, easy to use, and this is main advantage of the present invention.
Infrared sensor 8 is below followed by the enlarge leadingly filtering circuit 9 of a small volume, and can carry out pre-service to signal nearby, in addition, it is placed in housing 1, effectively can prevent the interference such as extraneous electromagnetism.
The present invention is except except built-in infrared sensor, also can deriving outside sonde body by interior coated hollow light pipe through the light after lens 7 through atr crystal 1 outgoing again, utilize MCT sensor to carry out sensed light signal.
For shell 5, the present invention adopts metal material, first-selected stainless steel material.Atr crystal 1 is combined with housing closely by O-ring seal, effectively can ensure that probe does not have fluid seepage to enclosure interior after inserting liquid, thus light pipe, lens, infrared sensor, circuit board etc. that protection is placed in enclosure interior is not damaged.
Interior plated film light pipe 4 is firmly placed in enclosure interior by light pipe stationary fixture 3 and 6, and it is inner that enlarge leadingly filtering circuit 9 is inserted and secured on housing 1 by trench structure.
The O shape circle mounting groove 10 of shell 5 outside, can be placed in this groove by O shape circle, insert in Conventional compounds reactor, play sealing function.
Claims (3)
1. the ATR for Fourier transform infrared spectrometer pops one's head in, it is characterized in that: comprise shell (5), atr crystal (1), first lens (2) and the second lens (7), interior plated film light pipe (4), first light pipe stationary fixture (3) and the second light pipe stationary fixture (6), infrared sensor (8), enlarge leadingly filtering circuit (9);
The both ends open of shell (5), atr crystal (1) is fixed on the opening part of shell (5) one end, first lens (2), first light pipe stationary fixture (3) and the second light pipe stationary fixture (6), the fixing side in the enclosure of interior plated film light pipe (4), first lens (2) connect with atr crystal (1), interior plated film light pipe (4) connects with the first lens (2), first light pipe stationary fixture (3) and the second light pipe stationary fixture (6) are arranged on the two ends of interior plated film light pipe (4), second light pipe stationary fixture (6) is positioned at the opening part of shell (5) other end,
Second lens (7), infrared sensor (8), enlarge leadingly filtering circuit (9) be fixing opposite side in the enclosure successively; Second lens (7) connect with atr crystal (1);
Atr crystal (1) has two inclined-planes, and two inclined-planes of atr crystal (1) aimed at respectively by the first lens (2) and the second lens (7);
After incident light injects interior plated film light pipe (4), atr crystal (1) is entered after the first lens (2) coupling, crystal is penetrated after crystal (1) internal reflection at least twice, collecting through the second lens (7) focuses on the photosurface of infrared sensor (8) again, infrared sensor (8) converts light signal to electric signal, then exports after enlarge leadingly filtering circuit (9) carries out signal amplification filtering;
Described interior plated film light pipe (4) is made up of quartzy double glazing, the infrared high-reflecting film of interior plating; Interior plated film light pipe (4) internal diameter is 0.5-5mm.
2. a kind of ATR for Fourier transform infrared spectrometer according to claim 1 pops one's head in, it is characterized in that: described shell (5) is provided with O shape circle mounting groove (10), for mounting O-shaped rings, shell (5) is snugly fitted on tank body or reactor.
3. a kind of ATR for Fourier transform infrared spectrometer according to claim 1 pops one's head in, and it is characterized in that: described atr crystal (1) comprises the section that at least one has the surface of taper or truncated cone shape, and semi-cone angle is between 38-50 °; Atr crystal (1) is made up of ZnSe, adamas, sapphire or Ge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310353994.0A CN103398948B (en) | 2013-08-14 | 2013-08-14 | A kind of ATR for Fourier transform infrared spectrometer pops one's head in |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310353994.0A CN103398948B (en) | 2013-08-14 | 2013-08-14 | A kind of ATR for Fourier transform infrared spectrometer pops one's head in |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103398948A CN103398948A (en) | 2013-11-20 |
| CN103398948B true CN103398948B (en) | 2015-09-16 |
Family
ID=49562614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310353994.0A Expired - Fee Related CN103398948B (en) | 2013-08-14 | 2013-08-14 | A kind of ATR for Fourier transform infrared spectrometer pops one's head in |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103398948B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103852439A (en) * | 2014-03-28 | 2014-06-11 | 北京雪迪龙科技股份有限公司 | Volatile organic compound monitoring equipment and method |
| CN104062009A (en) * | 2014-06-26 | 2014-09-24 | 武汉大学 | High luminous flux infrared ATR probe |
| CN104535539B (en) * | 2014-12-23 | 2017-07-28 | 南京航空航天大学 | For the infrared hollow optic fibre ATR coupling probes in body and in vitro in situ detection |
| US9863877B2 (en) * | 2015-09-23 | 2018-01-09 | Agilent Technologies, Inc. | Infrared spectrometer and scanner utilizing attenuated total reflection |
| CN105424610B (en) * | 2015-11-10 | 2018-02-02 | 上海交通大学 | A kind of optical fiber type ATR probes for realizing probe side wall and top while measurement |
| CN105806796A (en) * | 2016-03-24 | 2016-07-27 | 电子科技大学 | Molecular sensor |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4038354A1 (en) * | 1990-12-01 | 1992-06-11 | Bruker Analytische Messtechnik | ART measurement probe, esp. for infrared spectroscopy - has single fibre forming light inlet, outlet and sensor, |
| EP0899557A2 (en) * | 1997-08-26 | 1999-03-03 | Matsushita Electric Industrial Co., Ltd. | Element and apparatus for attenuated total reflection measurement, and method for measuring specific component using the same |
| US5991029A (en) * | 1998-04-06 | 1999-11-23 | Axiom Analytical, Inc. | Attenuated total reflecance probe employing large incidence angles |
| WO2002018919A1 (en) * | 2000-09-01 | 2002-03-07 | Central Research Laboratories Limited | Attenuated total reflectance sensing head |
| CN1372635A (en) * | 1999-04-09 | 2002-10-02 | 光谱探测器有限公司 | Improvements in, or relating to, infra-red detection |
| CN1647757A (en) * | 2004-01-19 | 2005-08-03 | 北京大学 | Method and its device for body surface non-invasive detecting living body tissue |
| CN101542272A (en) * | 2006-09-20 | 2009-09-23 | 普拉德研究及开发股份有限公司 | An apparatus and method for optically determining the presence of carbon dioxide |
| CN101623191A (en) * | 2009-08-14 | 2010-01-13 | 北京航空航天大学 | Device and method for noninvasively detecting property of stomach tissue |
| CN101889195A (en) * | 2007-12-04 | 2010-11-17 | 恩德莱斯和豪瑟尔测量及调节技术分析仪表两合公司 | The ATR probe |
| CN101990633A (en) * | 2008-02-01 | 2011-03-23 | 莱尔照明公司 | Methods, devices and kits for peri-critical reflectance spectroscopy |
| CN202189013U (en) * | 2011-05-26 | 2012-04-11 | 浙江大学 | Real-time material detecting and monitoring device based on spectroscopic technology |
| CN102998097A (en) * | 2011-09-19 | 2013-03-27 | 中国科学院电子学研究所 | Attenuated total reflection optical measurement platform |
| CN203275276U (en) * | 2013-04-08 | 2013-11-06 | 广西壮族自治区机械工业研究院 | Attenuated total reflection probe |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1715327A3 (en) * | 2002-04-03 | 2007-01-10 | Johann Wolfgang Goethe-Universität Frankfurth am Main | Infrared measuring device, especially for the spectrometry of aqueous systems, preferably multiple component systems |
-
2013
- 2013-08-14 CN CN201310353994.0A patent/CN103398948B/en not_active Expired - Fee Related
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4038354A1 (en) * | 1990-12-01 | 1992-06-11 | Bruker Analytische Messtechnik | ART measurement probe, esp. for infrared spectroscopy - has single fibre forming light inlet, outlet and sensor, |
| EP0899557A2 (en) * | 1997-08-26 | 1999-03-03 | Matsushita Electric Industrial Co., Ltd. | Element and apparatus for attenuated total reflection measurement, and method for measuring specific component using the same |
| US5991029A (en) * | 1998-04-06 | 1999-11-23 | Axiom Analytical, Inc. | Attenuated total reflecance probe employing large incidence angles |
| CN1372635A (en) * | 1999-04-09 | 2002-10-02 | 光谱探测器有限公司 | Improvements in, or relating to, infra-red detection |
| WO2002018919A1 (en) * | 2000-09-01 | 2002-03-07 | Central Research Laboratories Limited | Attenuated total reflectance sensing head |
| CN1647757A (en) * | 2004-01-19 | 2005-08-03 | 北京大学 | Method and its device for body surface non-invasive detecting living body tissue |
| CN101542272A (en) * | 2006-09-20 | 2009-09-23 | 普拉德研究及开发股份有限公司 | An apparatus and method for optically determining the presence of carbon dioxide |
| CN101889195A (en) * | 2007-12-04 | 2010-11-17 | 恩德莱斯和豪瑟尔测量及调节技术分析仪表两合公司 | The ATR probe |
| CN101990633A (en) * | 2008-02-01 | 2011-03-23 | 莱尔照明公司 | Methods, devices and kits for peri-critical reflectance spectroscopy |
| CN101623191A (en) * | 2009-08-14 | 2010-01-13 | 北京航空航天大学 | Device and method for noninvasively detecting property of stomach tissue |
| CN202189013U (en) * | 2011-05-26 | 2012-04-11 | 浙江大学 | Real-time material detecting and monitoring device based on spectroscopic technology |
| CN102998097A (en) * | 2011-09-19 | 2013-03-27 | 中国科学院电子学研究所 | Attenuated total reflection optical measurement platform |
| CN203275276U (en) * | 2013-04-08 | 2013-11-06 | 广西壮族自治区机械工业研究院 | Attenuated total reflection probe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103398948A (en) | 2013-11-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103398948B (en) | A kind of ATR for Fourier transform infrared spectrometer pops one's head in | |
| CN102869980B (en) | There is the gas sensor of radiation catheter | |
| CN103528797B (en) | A kind of new system detected for optical system eyeglass transmitance and reflectance | |
| CN101477044B (en) | Surface plasma resonance sensor | |
| CN104359850B (en) | A kind of infrared gas sensor based on three spheroid absorption chamber structures | |
| CN102353655A (en) | Surface plasma resonance sensor based on photonic crystal fiber | |
| CN103278893B (en) | Terahertz wave emitting/receiving integration module | |
| CN102507494A (en) | Long-optical-path and light-intensity-adjustable infrared methane gas sensor | |
| CN103604780B (en) | A kind of device that improves Laser induced plasma spectroscopy detectivity | |
| CN204495716U (en) | A kind of turbidity meter of high precision high accuracy | |
| CN102539387A (en) | Method and device for measuring glass reflectance | |
| CN103604501A (en) | DOAS measurement system by means of polarizing beam splitting | |
| Xue et al. | Study of a novel sunlight concentrating and optical fibre guiding system | |
| CN102243175A (en) | Surface plasma resonance light detection device based on ellipsoidal reflector light collection structure | |
| CN203365739U (en) | Terahertz wave transmitting/receiving integration module | |
| CN110531013A (en) | A kind of detection cell being axially totally reflected using capillary wall | |
| CN109443703A (en) | A kind of detection device and detection method of transmitance and reflectivity | |
| CN104062009A (en) | High luminous flux infrared ATR probe | |
| CN202794024U (en) | Sample cell used for measuring molecular spectral absorption | |
| CN106525804A (en) | Optical structure of fluorescence immunochromatography instrument | |
| CN116124745A (en) | Optical micro-flow laser biomarker detector based on two-dimensional feedback structure | |
| CN208751830U (en) | A kind of detection device of transmitance and reflectivity | |
| US9057692B2 (en) | Device for measuring refractive index of medium based on optical delay technology and its method | |
| CN210294056U (en) | Optical path adjustable pipeline section phase content rate detecting system | |
| US20060262399A1 (en) | Optical concentrator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20150916 Termination date: 20190814 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |