CN203858199U - Solid sample measuring and positioning device of portable type laser Raman spectrometer - Google Patents
Solid sample measuring and positioning device of portable type laser Raman spectrometer Download PDFInfo
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- CN203858199U CN203858199U CN201420240171.7U CN201420240171U CN203858199U CN 203858199 U CN203858199 U CN 203858199U CN 201420240171 U CN201420240171 U CN 201420240171U CN 203858199 U CN203858199 U CN 203858199U
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Abstract
The utility model provides a solid sample measuring and positioning device of a portable type laser Raman spectrometer, relating to laser Raman spectrometers. The solid sample measuring and positioning device is provided with a solid sample sleeve, a positioning circular disc and a fixing screw, wherein the solid sample sleeve sleeves the bottom of a lens cone and is fixed by the fixing screw; the top of the positioning circular disc is in threaded connection with the solid sample sleeve; when being rotated, the positioning circular disc moves from front to back to adjust the front end face of the positioning circular disc to fall on a focal point of a Raman spectrum collection lens; a central hole with a chamfer is formed in the center of the positioning circular disc; the center of a light beam of a laser light source falls to the center of the central hole; the surface of a solid sample to be detected is placed at the focal point of the Raman spectrum collection lens. The solid sample measuring and positioning device can accurately position the sample which does not need to be adjusted by a mechanism; the sample can be positioned rapidly in one step and is placed at the optimal position for measuring to rapidly obtain a maximum Raman light signal of the sample; the solid sample measuring and positioning device can be applicable to various portable type or small-sized laser Raman spectrometers, is high in detection efficiency, reasonable in structure, accurate to position, convenient to operate and low in cost.
Description
Technical field
The utility model relates to laser Raman spectrometer, especially relates to a kind of portable laser Raman spectrometer solid sample measurement and positioning device.
Background technology
Laser Raman spectrometer is that one utilizes laser as excitation source, the Raman spectrum producing by measuring sample, the instrument that carries out Matter Composition analysis.Because the Raman spectrum that sample produces is very faint, approximately only has 10 of laser excitation main line light Strong
-10～10
-6therefore how to make Laser Focusing point accurately drop on sample, can accurately drop in the focus of Raman spectrum collecting lens again, as much as possible improve the collection efficiency of Raman light intensity, become a major issue that needs solution in laser Raman spectrometer simultaneously.
On large-scale precision laser Raman spectrometer in the market, be all furnished with optics or videomicroscopy platform, by regulating the Precision trimming mechanism of X-Y-Z three-dimensional, can be positioned at solid sample or the fluid sample in detection platform by fine adjustment, make sample fast on best tram.So both can improve the collection efficiency of Raman light intensity, save again detection time, improve the detection efficiency of sample.But because microscope stage manufacturing cost is higher, volume is larger, is only suitable for using in large-scale instrument, is unsuitable for being used in portable instrument.
Medium-sized Portable laser Raman spectrometer, because instrument volume is little, cost is low, generally be not equipped with other servicing units, in measuring process, only depend on manually the front end that solid sample or fluid sample is placed on to laser probe, by the position of mobile example, search out a Best Point, make tester the Raman light signal of sample maximum can be detected.Although this method is simple, but operation inconvenience, needs usual test experience accumulation, each measurement need to just can be found a suitable position by repetitiousness test repeatedly, even professional is also difficult to find fast an optimum position, measure detection efficiency very low.
Summary of the invention
The purpose of this utility model is to provide and can accurately locates, regulate without mechanism, fast sample is settled at one go, be positioned over the optimum position of measurement, obtain rapidly the maximum Raman light signal of sample, thereby greatly improve and detect sample efficiency, applicable to various portable or miniature laser Raman spectrometers, a kind of portable laser Raman spectrometer solid sample measurement and positioning device of the feature such as there is rational in infrastructure, registration, easy to operate, cost is low.
The utility model is provided with solid sample sleeve, positioning disc and gib screw; Described solid sample jacket casing is in the bottom of lens barrel and fixed by gib screw, the top of positioning disc is connected with solid sample bush whorl, in the time of rotational positioning disk, positioning disc moves forward and backward, for regulating the front end face position of positioning disc to drop on the focus place of Raman spectrum collecting lens, positioning disc center is provided with the center pit with chamfering, and the beam center of LASER Light Source drops on the center of center pit; The surface of tested solid sample is placed on the focus place of Raman spectrum collecting lens.
Described solid sample jacket casing is in the bottom of lens barrel and be fixed on the lower outside of lens barrel by gib screw.
When each measurement solid sample, only tested solid sample surface need be close to positioning disc centre of surface position, can measure the tested solid sample at positioning disc center, and obtain the maximum Raman light signal of sample.Unclamping gib screw can take off the utility model, reinstalls at every turn and can keep positioning disc to be centered close to the invariant position of focus.
The utility model can accurately be located, regulate without mechanism, fast sample is settled at one go, be positioned over the optimum position of measurement, obtain rapidly the maximum Raman light signal of sample, thereby greatly improve and detect sample efficiency, applicable to various portable or miniature laser Raman spectrometers, there is rational in infrastructure, registration, easy to operate, low cost and other advantages.
Brief description of the drawings
Fig. 1 is the structure composition schematic diagram of the utility model embodiment.
Embodiment
Referring to Fig. 1, the utility model embodiment is provided with solid sample sleeve 8, positioning disc 9 and gib screw 7; Described solid sample sleeve 8 is enclosed within the bottom of lens barrel 6 and is fixed by gib screw 7, the top of positioning disc 9 is threaded with solid sample sleeve 8, in the time of rotational positioning disk 9, positioning disc 9 moves forward and backward, for regulating the front end face position of positioning disc 9 to drop on the focal point F place of Raman spectrum collecting lens 4, positioning disc 9 centers are provided with the center pit 91 with chamfering, and the beam center of LASER Light Source 2 drops on center pit 91 center; The surface of tested solid sample is placed on the focal point F place of Raman spectrum collecting lens 4.
Described solid sample sleeve 8 is enclosed within the bottom of lens barrel 6 and is fixed on the lower outside of lens barrel 6 by gib screw 7.
In Fig. 1, mark 1 is laser Raman spectrometer main frame, the 3rd, and laser focusing mirror, the 5th, light beam divided beams plate.
When each measurement solid sample, only tested solid sample surface need be close to positioning disc centre of surface position, can measure the tested solid sample at positioning disc center, and obtain the maximum Raman light signal of sample.Unclamping gib screw 7 can take off the utility model, reinstalls at every turn and can keep positioning disc to be centered close to the invariant position of focal point F.
Claims (2)
1. portable laser Raman spectrometer solid sample measurement and positioning device, is characterized in that being provided with solid sample sleeve, positioning disc and gib screw; Described solid sample jacket casing is in the bottom of lens barrel and fixed by gib screw, the top of positioning disc is connected with solid sample bush whorl, in the time of rotational positioning disk, positioning disc moves forward and backward, for regulating the front end face position of positioning disc to drop on the focus place of Raman spectrum collecting lens, positioning disc center is provided with the center pit with chamfering, and the beam center of LASER Light Source drops on the center of center pit; The surface of tested solid sample is placed on the focus place of Raman spectrum collecting lens.
2. portable laser Raman spectrometer solid sample measurement and positioning device as claimed in claim 1, is characterized in that described solid sample jacket casing in the bottom of lens barrel and is fixed on the lower outside of lens barrel by gib screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420240171.7U CN203858199U (en) | 2014-05-12 | 2014-05-12 | Solid sample measuring and positioning device of portable type laser Raman spectrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420240171.7U CN203858199U (en) | 2014-05-12 | 2014-05-12 | Solid sample measuring and positioning device of portable type laser Raman spectrometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203858199U true CN203858199U (en) | 2014-10-01 |
Family
ID=51608045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420240171.7U Expired - Fee Related CN203858199U (en) | 2014-05-12 | 2014-05-12 | Solid sample measuring and positioning device of portable type laser Raman spectrometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203858199U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596935A (en) * | 2015-01-26 | 2015-05-06 | 力合科技（湖南）股份有限公司 | Adjustable type detection light path device |
| CN106404744A (en) * | 2016-11-01 | 2017-02-15 | 北京华泰诺安技术有限公司 | Portable directive Raman spectrum acquisition system and method |
| CN106895920A (en) * | 2017-04-19 | 2017-06-27 | 重庆师范大学 | A kind of new Raman signal recurring structure |
| WO2019119425A1 (en) * | 2017-12-22 | 2019-06-27 | 深圳达闼科技控股有限公司 | Raman system |
-
2014
- 2014-05-12 CN CN201420240171.7U patent/CN203858199U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596935A (en) * | 2015-01-26 | 2015-05-06 | 力合科技（湖南）股份有限公司 | Adjustable type detection light path device |
| CN106404744A (en) * | 2016-11-01 | 2017-02-15 | 北京华泰诺安技术有限公司 | Portable directive Raman spectrum acquisition system and method |
| CN106895920A (en) * | 2017-04-19 | 2017-06-27 | 重庆师范大学 | A kind of new Raman signal recurring structure |
| WO2019119425A1 (en) * | 2017-12-22 | 2019-06-27 | 深圳达闼科技控股有限公司 | Raman system |
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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: 20141001 Termination date: 20180512 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |