CN200976003Y - Rotary sample rack - Google Patents
Rotary sample rack Download PDFInfo
- Publication number
- CN200976003Y CN200976003Y CN 200620047378 CN200620047378U CN200976003Y CN 200976003 Y CN200976003 Y CN 200976003Y CN 200620047378 CN200620047378 CN 200620047378 CN 200620047378 U CN200620047378 U CN 200620047378U CN 200976003 Y CN200976003 Y CN 200976003Y
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- sample
- center
- sample holder
- stepper motor
- circular hole
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Abstract
The utility model relates to a rotation sample holder, which comprises a three-D translation table, a step motor connecting with the 3D translation table through a junction plate, a disk sample holder connecting with the central axis of the step motor through the center of the disc sample holder, more than a sample round holes are arranged on the disk sample holder, wherein the centers of each two adjacent sample round holes are connected with the center of the disc sample holder, and each two adjacent line angles are the same. The utility model has the advantages of reducing errors caused by the noise while measuring the terahertz time-domain spectroscopy and improving the measuring precision.
Description
Technical field
The present invention relates to the spectral measurement field, particularly a kind of rotation specimen holder that is used for the terahertz time-domain spectroscopy measurement.
Background technology
In terahertz time-domain spectroscopy was measured, deferred mount made detection light carry out sampling and measuring in the different moment to the electric field intensity of terahertz pulse by changing the optical path difference of surveying between light and pump light, obtains the time waveform of terahertz pulse electric field intensity at last.For the typical terahertz time-domain spectroscopy of cover system, the main source of noise is a pumping laser, because it is very responsive to the minor fluctuations of temperature and humidity, the amplitude of terahertz pulse signal and position have certain fluctuation with Measuring Time, the different data of measuring constantly can not reach completely and repeat, thereby cause the error of measurement.
In existing metering system, the signal of first witness mark sample comes the position of mobile example frame then by mobile motor; Perhaps adopt manual push-and-pull, make specimen holder move to the position of sample, measuring samples signal again.In the experiment approximately there be about 5min the time interval of the spectral measurement of reference sample and sample, some labile factors must be brought error to measurement result in the meantime, and be difficult to realize the quantitative test of measuring samples.Especially when several sample of more same system, if the difference between the sample signal is very little, this species diversity is easy to be covered by this minor fluctuations.
Summary of the invention
The purpose of this utility model provides a kind of error that noise brought when reducing terahertz time-domain spectroscopy and measuring, and improves the rotation specimen holder of measuring accuracy.
The purpose of this utility model is achieved through the following technical solutions:
A kind of rotation specimen holder, it comprises: the stepper motor that a D translation platform, is connected with this D translation platform by a plate, the disk sample frame that one center of circle links to each other with this stepper motor central shaft, one is arranged at the more than one sample circular hole on this disk sample frame.
Wherein, every adjacent two these centers, sample circular hole place link to each other with the center of this disk sample frame respectively, and the number of degrees of the angle of per two adjacent these lines are identical.
Wherein, this stepper motor is connected with the controller that a pair of its rotating speed is controlled.
Wherein, this D translation platform is provided with the knob of an adjusting sample circular hole initial position.
Positive progressive effect of the present utility model is:
When using the rotation specimen holder to carry out the terahertz time-domain spectroscopy measurement, can survey a plurality of samples successively at each time domain point, eliminate the difference of each sample detection time, signal that sees through sample and the signal that sees through reference sample are almost compared simultaneously, improve measuring accuracy greatly, reduce the error that noise brings, especially when several sample of more same system, can reflect the difference between the sample signal more really.
Description of drawings
Fig. 1 is the structural representation of the utility model preferred embodiment.
Fig. 2 is the inside index path of the surveying instrument that uses in the utility model preferred embodiment.
Embodiment
Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.
A kind of rotation specimen holder, it is used for terahertz time-domain spectroscopy and measures.It comprises: D translation platform 1, a stepper motor 2 and a disk sample frame 3.Wherein, this stepper motor 2 is fixed on this D translation platform 1 by a plate 6.Be evenly distributed with six sample circular holes 4 on this disk sample frame 3, promptly every center, adjacent two sample circular hole 4 places links to each other with the center of disk sample frame respectively, and each angle is 60 degree.The center of circle of disk sample frame 3 is connected with stepper motor central shaft 5 and is fixing, and making it does not have relative displacement in rotation process.This D translation platform 1 is provided with adjusting knob 7, and it can be provided with the initial position of sample circular hole 4.
In use, sample is positioned in the sample circular hole 4 on the disk sample frame 3, one of them is a reference sample, and remaining is a testing sample.Utilize the adjusting knob 7 of D translation platform 1 that the initial position of sample circular hole 4 is set, make that the launching spot 10 (hot spot 10 stationkeeping are constant) of Terahertz passes through at the center of sample circular hole 4 on the surveying instrument.The deferred mount of surveying instrument stops the regular hour at each time domain point place, promptly keeps detection light 9 and 8 optical path differences of pump light constant.Simultaneously, stepper motor 2 drives disk sample framves 3 and rotates, in this process, whenever sample circular hole 4 turns to its center when overlapping with launching spot 10 positions of Terahertz, the rotation that stepper motor 2 drives disk sample frame 3 stops certain hour, with the data of sample to be collected.This stepper motor 2 is connected with the controller that a pair of its rotating speed is controlled, carrying out order by Labview software is provided with its stepper motor 2 is controlled, it is the same making every two adjacent sample circular holes 4 turn over the required time, the launching spot 10 of Terahertz also is the same in the time that each sample circular hole 4 place stops, can equally spaced signal be gathered like this. because this surveying instrument and controller are prior art, no longer it is described in detail at this.After treating that disk sample frame 3 rotates a circle, deferred mount enters next time domain measurement point, repeats aforesaid operations, like this signal that sees through sample and the signal that sees through reference sample are almost compared simultaneously, eliminated the difference that the detection time difference causes,, reduced error to improve measuring accuracy.
Claims (4)
1, a kind of rotation specimen holder, it is characterized by, it comprises: the stepper motor that a D translation platform, is connected with this D translation platform by a plate, and the disk sample frame that a center of circle links to each other with this stepper motor central shaft, one is arranged at the more than one sample circular hole on this disk sample frame.
2, rotation specimen holder according to claim 1 is characterized by, and every adjacent two these centers, sample circular hole place link to each other with the center of this disk sample frame respectively, and the number of degrees of the angle of per two adjacent these lines are identical.
3, rotation specimen holder according to claim 1 is characterized by, and this stepper motor is connected with the controller that a pair of its rotating speed is controlled.
4, rotation specimen holder according to claim 1 is characterized by, and this D translation platform is provided with the knob of an adjusting sample circular hole initial position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620047378 CN200976003Y (en) | 2006-10-31 | 2006-10-31 | Rotary sample rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620047378 CN200976003Y (en) | 2006-10-31 | 2006-10-31 | Rotary sample rack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200976003Y true CN200976003Y (en) | 2007-11-14 |
Family
ID=38902287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620047378 Expired - Fee Related CN200976003Y (en) | 2006-10-31 | 2006-10-31 | Rotary sample rack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200976003Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645404A (en) * | 2011-02-18 | 2012-08-22 | 中国科学院上海应用物理研究所 | Liquid sample stand suitable for terahertz time-domain spectral measurement and method thereof |
| CN102903594A (en) * | 2012-10-11 | 2013-01-30 | 中国地质科学院地质研究所 | Sample holder in sealed chamber body |
| CN103194788A (en) * | 2013-04-17 | 2013-07-10 | 清华大学 | Preparation, characterization and application methods of anisotropic medium crystal in THz (Terahertz) frequency band |
| CN103364363A (en) * | 2013-06-28 | 2013-10-23 | 中国科学院西安光学精密机械研究所 | Device and method for acquiring absorption coefficient and refractive index of substance in terahertz waveband |
| CN103852423A (en) * | 2012-11-30 | 2014-06-11 | 华东师范大学 | Profound hypothermia three-dimensional adjustable sample holder |
| CN104614315A (en) * | 2015-01-16 | 2015-05-13 | 北京科技大学 | Test sample holder, switching type test system and test method for terahertz absorption spectrum |
| CN109238969A (en) * | 2018-10-24 | 2019-01-18 | 中国科学院新疆理化技术研究所 | A kind of low-temperature photoluminescence rapidly and efficiently test method |
| CN109580531A (en) * | 2018-12-13 | 2019-04-05 | 浙江大学 | A kind of automatic sampling for terahertz light spectrometer and vary device |
-
2006
- 2006-10-31 CN CN 200620047378 patent/CN200976003Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645404A (en) * | 2011-02-18 | 2012-08-22 | 中国科学院上海应用物理研究所 | Liquid sample stand suitable for terahertz time-domain spectral measurement and method thereof |
| CN102645404B (en) * | 2011-02-18 | 2015-09-30 | 中国科学院上海应用物理研究所 | Be applicable to liquid sample stand and the method thereof of terahertz time-domain spectroscopy measurement |
| CN102903594A (en) * | 2012-10-11 | 2013-01-30 | 中国地质科学院地质研究所 | Sample holder in sealed chamber body |
| CN102903594B (en) * | 2012-10-11 | 2015-03-11 | 中国地质科学院地质研究所 | Sample holder in sealed chamber body |
| CN103852423A (en) * | 2012-11-30 | 2014-06-11 | 华东师范大学 | Profound hypothermia three-dimensional adjustable sample holder |
| CN103852423B (en) * | 2012-11-30 | 2016-09-14 | 华东师范大学 | The three-dimensional adjustable specimen holder of a kind of profound hypothermia |
| CN103194788B (en) * | 2013-04-17 | 2016-03-23 | 清华大学 | The preparation of Terahertz frequency range anisotropic medium crystal, sign and application method |
| CN103194788A (en) * | 2013-04-17 | 2013-07-10 | 清华大学 | Preparation, characterization and application methods of anisotropic medium crystal in THz (Terahertz) frequency band |
| CN103364363A (en) * | 2013-06-28 | 2013-10-23 | 中国科学院西安光学精密机械研究所 | Device and method for acquiring absorption coefficient and refractive index of substance in terahertz waveband |
| CN104614315A (en) * | 2015-01-16 | 2015-05-13 | 北京科技大学 | Test sample holder, switching type test system and test method for terahertz absorption spectrum |
| CN104614315B (en) * | 2015-01-16 | 2017-05-17 | 北京科技大学 | Test sample holder, switching type test system and test method for terahertz absorption spectrum |
| CN109238969A (en) * | 2018-10-24 | 2019-01-18 | 中国科学院新疆理化技术研究所 | A kind of low-temperature photoluminescence rapidly and efficiently test method |
| CN109580531A (en) * | 2018-12-13 | 2019-04-05 | 浙江大学 | A kind of automatic sampling for terahertz light spectrometer and vary device |
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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: 20071114 Termination date: 20101031 |