CN203870009U - Inserting piece type fixture used for terahertz time-domain spectroscopy measuring device - Google Patents
Inserting piece type fixture used for terahertz time-domain spectroscopy measuring device Download PDFInfo
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- CN203870009U CN203870009U CN201420296828.1U CN201420296828U CN203870009U CN 203870009 U CN203870009 U CN 203870009U CN 201420296828 U CN201420296828 U CN 201420296828U CN 203870009 U CN203870009 U CN 203870009U
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- domain spectroscopy
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Abstract
The utility model discloses an inserting piece type fixture used for a terahertz time-domain spectroscopy measuring device. The inserting piece type fixture comprises a first main body of a cuboid structure and a plurality of second main bodies, a first rectangular through hole is formed in the geometric center of the side face, with the largest area, of the first main body, scales are marked on the periphery of the first main body along the first rectangular through hole, a first cuboid blind hole communicated with the first rectangular through hole is formed in the upper bottom face of the first main body, each second main body is of a cuboid structure, the side length of the largest side face of each second main body is consistent with that of the largest side face of the first main body, and a second rectangular through hole is formed in the geometric center of the side face, with the largest area, of each second main body. The inserting piece type fixture for the terahertz time-domain spectroscopy measuring device is capable of clamping to-be-measured platy objects regular or irregular in shape and has the advantages of simplicity in operation, clamping stability and flexibility in adjustment.
Description
Technical field
The utility model patent relates to a kind of fixture, particularly relates to a kind of blade inserting fixture for terahertz time-domain spectroscopy measurement mechanism.
Technical background
Terahertz time-domain spectroscopic technology is a kind of new technology that adopts femto-second laser to excite THz wave that gallium arsenide gives off to survey material etc.In terahertz time-domain spectroscopy system, the terahertz time-domain waveform of sample is to utilize deferred mount not change to measure through the pump light of terahertz pulse electric field intensity and the optical path difference of detection light of sample in the same time.Main source of error in experimentation is pump light, sample refraction reflection and human factor.Pump light is subject to the impact of environment temperature and humidity can produce larger amplitude and phase change, the refraction of sample and reflection are very responsive to the collimation of sample face and THz wave, vary the time length of product and place accuracy and the measuring accuracy of sample closely related, the repeatability of these factors to measurement data and the Terahertz wave intensity etc. that sees through sample have considerable influence, and many factors interacts and causes the generation of larger measuring error.
In existing terahertz time-domain spectroscopy measurement mechanism, be usually used in the measurement that diameter is the tablet of 1cm, measurement mechanism is also for circular design.This device can only pack a slice tablet at every turn, and a point is detected, and conventional efficient is low, and precision is difficult to ensure, and packs into take out and easily cause when sample environment temperature and humidity in nitrogen box to change.These variations all have a certain impact to experimental result, and when serious, experimental data, lower than confidence values, causes the failure of an experiment.And along with the development of THz wave Dynamic Non-Destruction Measurement, current experimental subjects is no longer confined to the tablet of particular circle, also has square even erose board-like material.For its effective information is unlikely to be had a strong impact on, in test process, just must ensure substantially constant with respect to environment in the vertical precision of Terahertz light and case of sample, obviously metering system and device in the past can not adapt to new object again.
In order to address the above problem, expand the range of application of terahertz time-domain spectroscopy pick-up unit, improve vertical precision and the conventional efficient of sample with respect to Terahertz light, in guard box, environment is basically identical, and the utility model patent proposes a kind of for clamping the fixture of the tabular sample of terahertz time-domain spectroscopy pick-up unit.This fixture is clamped sample accurately, ensures the vertical precision of sample and experiment porch, in experimentation, can manually move up and down sample, realizes the test of difference to obtain more experimental data.Can on same sample, make contrast district based on this, complete contrast experiment by twitching up and down fixture.This fixture not only provides wider detected object scope for terahertz time-domain spectroscopy pick-up unit, and reality sample of clamping complete multiple experiments, reduced because of clamping sample causes repeatedly error and time of taking, improved the efficiency of sample test.
Although also have similar sample rack device, current device to be difficult to ensure the vertical precision of sample with respect to Terahertz light at present, and putting into the test point that can not regulate specimen holder change sample after sample.Along with the increase of experiment number and put into sample number and increase, use existing apparatus to be easy to cause the omission of sample test step and obscure, be difficult to ensure the reliability of sample test.
Summary of the invention
In view of the deficiencies in the prior art, the utility model provides a kind of blade inserting fixture for terahertz time-domain spectroscopy measurement mechanism,
For a blade inserting fixture for terahertz time-domain spectroscopy measurement mechanism, comprise the first main body and multiple the second main body,
The first described main body is rectangular structure, the geometric center of the area maximum side of the first main body has first rectangular through holes, the first main body is carved with scale along the first rectangular parallelepiped through hole surrounding, the upper bottom surface of the first main body has a first rectangular parallelepiped blind hole communicating with the first rectangular parallelepiped through hole
Described each the second main body is rectangular structure, and the length of side of the maximum side of the second main body is consistent with the length of side ratio of the maximum side of the first main body; The geometric center of the area maximum side of the second main body has second rectangular through holes.
The second described body thickness is different.
The length of the second rectangular through holes of described the second main body is different.
The beneficial effects of the utility model: the utility model can clamp regular shape or irregular tabular determinand, have advantages of simple to operate, clamping is firm, flexible.
brief description of the drawings:
Fig. 1 is the structural representation of the utility model embodiment fixture;
Fig. 2 is the structural representation of the utility model the second main body
embodiment:
Below by the use-pattern of concrete example explanation the utility model patent.
As shown in Figure 1, a kind of blade inserting fixture for terahertz time-domain spectroscopy measurement mechanism, comprises the first main body 1 and multiple the second main body 2,
The first described main body is rectangular structure, the geometric center of the area maximum side of the first main body has first rectangular through holes 3, the first main body is carved with scale 4 along the first rectangular parallelepiped through hole surrounding, the upper bottom surface of the first main body has a first rectangular parallelepiped blind hole 6 communicating with the first rectangular parallelepiped through hole 3
As shown in Figure 2, described each the second main body 2 be rectangular structure, the length of side of the maximum side of the second main body is consistent with the length of side ratio of the maximum side of the first main body; The geometric center of the area maximum side of the second main body has second rectangular through holes 5.
The second described main body 2 thickness d are different.
The length D of the second rectangular through holes of described the second main body is different.
In the utility model, the first rectangular through holes 3 surroundings of the first main body 1 are carved with the distance that scale moves for experiments of measuring fixture, because do not need the centre of holder in the first rectangular through holes 3 in this fixture, so being arranged to the first rectangular through holes 3 surroundings, scale compares the surrounding that is arranged at the first main body 1, can the more convenient location parameter that records exactly test point, avoid repeated test to cause testing unreliable.
In addition, the second main body 2 thickness are indefinite, the size of second rectangular through holes 5 of answering is in contrast also that indefinite, such design is the demand in order to meet all size sample, and the sample of different-thickness, size can just can be realized clamping by the second main body 2 of changing different size.The second main body 2 that large the second rectangular through holes 5 of thickness d is little is applicable to little and thin sample; The second main body 2 that little the second rectangular through holes 5 of thickness d is large is applicable to thick and large sample.
As larger in sample, select the second larger main body 2 of the second rectangular through holes 5, sample is less selects the second main body 2 that the second rectangular through holes 5 areas are less, to clamp preferably sample.The sample that cannot clamp for some, as tablet, in the second main body 2 that can directly to paste at the second rectangular through holes 5 areas be 0.
When work, size per sample, chooses the second applicable main body 2, first the second main body 2 is inserted from the first rectangular parallelepiped blind hole 6 of the first main body 1, then sample is inserted, and adjusts position and clamp position.Then fixture is inserted in terahertz time-domain spectroscopy pick-up unit.When experiment is carried out, realize the switching of sample test point by mobile the first main body 1.And determine different test points by the scale recording on fixture corresponding to certain reference position on terahertz time-domain spectroscopy pick-up unit.
Claims (3)
1. for a blade inserting fixture for terahertz time-domain spectroscopy measurement mechanism, comprise the first main body and multiple the second main body,
It is characterized in that: the first described main body is rectangular structure, the geometric center of the area maximum side of the first main body has first rectangular through holes, the first main body is carved with scale along the first rectangular parallelepiped through hole surrounding, the upper bottom surface of the first main body has a first rectangular parallelepiped blind hole communicating with the first rectangular parallelepiped through hole
Described each the second main body is rectangular structure, and the length of side of the maximum side of the second main body is consistent with the length of side ratio of the maximum side of the first main body; The geometric center of the area maximum side of the second main body has second rectangular through holes.
2. a kind of blade inserting fixture for terahertz time-domain spectroscopy measurement mechanism according to claim 1, is characterized in that: the second described body thickness is different.
3. a kind of blade inserting fixture for terahertz time-domain spectroscopy measurement mechanism according to claim 1, is characterized in that: the length of the second rectangular through holes of described the second main body is different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420296828.1U CN203870009U (en) | 2014-06-05 | 2014-06-05 | Inserting piece type fixture used for terahertz time-domain spectroscopy measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420296828.1U CN203870009U (en) | 2014-06-05 | 2014-06-05 | Inserting piece type fixture used for terahertz time-domain spectroscopy measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203870009U true CN203870009U (en) | 2014-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420296828.1U Expired - Fee Related CN203870009U (en) | 2014-06-05 | 2014-06-05 | Inserting piece type fixture used for terahertz time-domain spectroscopy measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203870009U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769993A (en) * | 2016-12-21 | 2017-05-31 | 北京农业信息技术研究中心 | Sample compressing tablet bogey, terahertz light spectral measurement system and measuring method |
-
2014
- 2014-06-05 CN CN201420296828.1U patent/CN203870009U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769993A (en) * | 2016-12-21 | 2017-05-31 | 北京农业信息技术研究中心 | Sample compressing tablet bogey, terahertz light spectral measurement system and measuring method |
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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: 20141008 Termination date: 20170605 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |