CN203929612U - A kind of clipping fixture for terahertz time-domain spectroscopy measurement mechanism - Google Patents
A kind of clipping fixture for terahertz time-domain spectroscopy measurement mechanism Download PDFInfo
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- CN203929612U CN203929612U CN201420297492.0U CN201420297492U CN203929612U CN 203929612 U CN203929612 U CN 203929612U CN 201420297492 U CN201420297492 U CN 201420297492U CN 203929612 U CN203929612 U CN 203929612U
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Abstract
The utility model discloses a kind of clipping fixture for terahertz time-domain spectroscopy measurement mechanism, comprise the first main body, the second main body, fixture and web member, the first main body and the second main body are all U-shaped structure, two ends of the first main body have bucking ladder groove, two ends of the second main body are provided with the bucking ladder matching with the first main body end, after the first main body and the second main body are connected, form Yi Ge center and have the rectangular structure of rectangular through holes, on rectangular parallelepiped, have the side of rectangular through holes along being circumferentially carved with scale.In rectangular parallelepiped through hole, be provided with four strip fixtures, four fixtures are parallel with the four edges of rectangular through holes respectively, and four strip fixtures are fixedly connected with four inwalls of rectangular through holes by web member respectively, and described web member adopts resilient material.The utility model has improved the efficiency of sample test when ensureing precision, can clamp regular shape or irregular tabular determinand, has advantages of and realizes simple, flexible adjustment.
Description
Technical field
The utility model patent relates to a kind of fixture, particularly relates to a kind of clipping 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 with not measuring through the pump light of terahertz pulse electric field intensity and the optical path difference of detection light of sample in the same time.In experimentation, human factor, sample refraction reflection and pump light are the main sources of error.Human factor is mainly derived from sample and changes, and the accuracy that sample is changed time length and placement all has close relationship with measuring accuracy; The collimation of sample surfaces and THz wave the refraction to sample and reflections affect very large; Environment temperature and humidity can affect amplitude and the phase place of pump light to a great extent.Above these factors all the repeatability to measurement data and the Terahertz wave intensity etc. that sees through sample have considerable influence, and many factors interacts and causes the strengthening of measuring error to increase.
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.Deficiency on device, causes this measuring method efficiency low, and precision is difficult to ensure, and packs that to take out the variation of environment temperature and humidity in the nitrogen box easily causing when sample be the one waste that nitrogen is used into.These uncontrollable variations have certain influence 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, and the sample of various shapes starts to enter in terahertz time-domain spectroscopy device.For its effective information is ensured, in test process, can ensure substantially constant with respect to environment in the vertical precision of Terahertz light and case of sample by improving device and measuring method.
Current device is not enough to ensure the collimation of sample with respect to Terahertz light, and is putting into the test point that can not adjust sample after sample.Along with increase and the test sample number of experiment number increase, use existing apparatus to be difficult to ensure the complete and orderly of sample test step, be difficult to the reliability of warranty test data.
Summary of the invention
In view of the defect of prior art, the utility model provides a kind of clipping fixture for terahertz time-domain spectroscopy measurement mechanism.
A kind of clipping fixture for terahertz time-domain spectroscopy measurement mechanism, comprise the first main body, the second main body, fixture and web member, the first described main body and the second main body are all U-shaped structure, two ends of the first main body have bucking ladder groove, two ends of the second main body are provided with the bucking ladder matching with the first main body end, after the first main body and the second main body are connected, form Yi Ge center and have the rectangular structure of rectangular through holes, on rectangular parallelepiped, have the side of rectangular through holes along being circumferentially carved with scale.
In rectangular parallelepiped through hole, be provided with four strip fixtures, four strip fixtures are parallel with the four edges of rectangular through holes respectively, four described strip fixtures are fixedly connected with four inwalls of rectangular through holes by web member respectively, and described web member adopts resilient material.
Described strip fixture clamps by V-type groove.
Described resilient material adopts spring.
Beneficial effect: the utility model patent proposes a kind of clipping fixture for terahertz time-domain spectroscopy pick-up unit.This fixture is clamped sample accurately, ensures the collimation 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 has not only expanded the usable range of terahertz time-domain spectroscopy pick-up unit, and reality sample of clamping complete multiple experiments, reduce because of the error that clamping sample causes repeatedly and the time taking, when ensureing precision, improved the efficiency of sample test.The utility model can clamp regular shape or irregular tabular determinand, has advantages of and realizes simple, flexible adjustment.
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 first main body;
Fig. 3 is the structural representation of the utility model the second main body.
Embodiment:
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of clipping fixture for terahertz time-domain spectroscopy measurement mechanism, comprise the first main body 1, the second main body 2, fixture 3 and spring 4, the first described main body 1 and the second main body 2 are all U-shaped structure, two ends of the first main body 1 have bucking ladder groove, two ends of the second main body 2 are provided with the bucking ladder matching with the first main body end, after the first main body and the second main body are connected, form Yi Ge center and have the rectangular structure of rectangular through holes, on rectangular parallelepiped, have the side of rectangular through holes along being circumferentially carved with scale 5.
In rectangular parallelepiped through hole, be provided with 3, four strip fixtures 3 of four strip fixtures parallel with the four edges of rectangular through holes respectively, four described strip fixtures are fixedly connected with four inwalls of rectangular through holes by spring respectively.
Described strip fixture clamps by V-type groove.
When work, split the first main body 1 and the second main body 1, to be measured the opening part from the second main body 2 inserted from top to bottom in " V " shape groove of three fixtures that are connected to the second main body, the first main body and second is connected, beyond to be measured folder is left, is fixed to " V " shape groove of the fixture being fixed in the first main body.After to be measured clamping is good, fixture is inserted in terahertz time-domain spectroscopy pick-up unit.When experiment is carried out, can realize by the positioning body that moves up and down the switching of sample test point.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. the clipping fixture for terahertz time-domain spectroscopy measurement mechanism, comprise the first main body, the second main body, fixture and web member, it is characterized in that: the first described main body and the second main body are all U-shaped structure, two ends of the first main body have bucking ladder groove, two ends of the second main body are provided with the bucking ladder matching with the first main body end, after the first main body and the second main body are connected, form Yi Ge center and have the rectangular structure of rectangular through holes, on rectangular parallelepiped, have the side of rectangular through holes along being circumferentially carved with scale;
In rectangular parallelepiped through hole, be provided with four strip fixtures, four strip fixtures are parallel with the four edges of rectangular through holes respectively, four described strip fixtures are fixedly connected with four inwalls of rectangular through holes by web member respectively, and described web member adopts resilient material.
2. a kind of clipping fixture for terahertz time-domain spectroscopy measurement mechanism according to claim 1, is characterized in that: described strip fixture clamps by V-type groove.
3. a kind of clipping fixture for terahertz time-domain spectroscopy measurement mechanism according to claim 1, is characterized in that: described resilient material adopts spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420297492.0U CN203929612U (en) | 2014-06-05 | 2014-06-05 | A kind of clipping fixture for terahertz time-domain spectroscopy measurement mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420297492.0U CN203929612U (en) | 2014-06-05 | 2014-06-05 | A kind of clipping fixture for terahertz time-domain spectroscopy measurement mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203929612U true CN203929612U (en) | 2014-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420297492.0U Expired - Fee Related CN203929612U (en) | 2014-06-05 | 2014-06-05 | A kind of clipping fixture for terahertz time-domain spectroscopy measurement mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203929612U (en) |
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2014
- 2014-06-05 CN CN201420297492.0U patent/CN203929612U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20170605 |