CN204666730U - A kind of material dielectric constant temperature variation testing instrument - Google Patents
A kind of material dielectric constant temperature variation testing instrument Download PDFInfo
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- CN204666730U CN204666730U CN201520375057.XU CN201520375057U CN204666730U CN 204666730 U CN204666730 U CN 204666730U CN 201520375057 U CN201520375057 U CN 201520375057U CN 204666730 U CN204666730 U CN 204666730U
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- heating furnace
- dielectric constant
- constant temperature
- temperature variation
- resonator cavity
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Abstract
The utility model belongs to material dielectric constant technical field of measurement and test, be specifically related to a kind of material dielectric constant temperature variation testing instrument, comprise material gearing and control analysis device: described material gearing includes: resonator cavity, heat insulating belt, heating furnace, transmission pole; Control analysis device includes: vector network analyzer, Heating Furnace Control instrument, transmission control unit (TCU) and General controller; Described resonator cavity is connected with described heating furnace by described heat insulating belt; The free end of described transmission pole can extend to described heating furnace and through heat insulating belt arrives resonator cavity, and the other end is fixedly connected on described transmission control unit (TCU); Described General controller is connected with described vector network analyzer, described Heating Furnace Control instrument and described transmission control unit (TCU) respectively, and described vector network analyzer is connected with resonator cavity, and described Heating Furnace Control instrument is connected with described heating furnace.It is simple that the utility model has device, easy to operate, the wide and measurement result advantage accurately of temperature measuring scope.
Description
Technical field
The utility model belongs to material dielectric constant technical field of measurement and test, is specifically related to a kind of material dielectric constant temperature variation testing instrument.
Background technology
Traditional material dielectric constant method of testing is all carry out at normal temperatures, and temperature is larger for the impact of dielectric material character.The complex permittivity of accurate Knowing material, aligning should indeed be very necessary with dielectric material.Dielectric material Micro-wave low-noise transistor is at high temperature measured and is seemed extremely important in some cases, when such as selecting the head radar antenna cover material of high-speed aircraft.High-speed aircraft is due to Aerodynamic Heating, head antenna house can reach very high temperature (often beyond 1000 DEG C), guarantee that antenna house has enough microwave transmissions, various material electromagnetic parameter at high temperature must be obtained in advance, thus select correct material to build antenna house.At some in biomedical and chemical research work, some special parameters at different temperatures needing to measure them equally.
The method of test material complex permittivity mainly contains transmission reflectometry resonant cavity method.Transmission reflectometry incides the reflection after material surface, transmission coefficient by test microwave, then solves complex permittivity and magnetic permeability.Resonant-cavity Method is that sample is put into resonator cavity, solves complex permittivity and the magnetic permeability of material according to the change of putting into resonance frequency and quality factor before and after sample.Resonant-cavity Method is particularly suitable for the electromagnetic parameter testing of low-loss material, and have very high measuring accuracy, low-loss material is widely used in radome.
Document " " aerospace material technique " Aerospace Material & Technology Inst. sponsors, the 2nd phase in 2011, and the electromagnetic wave transparent material high temperature dielectric properties evaluation delivered by Chen Conghui, He Fengmei, Li En and Li Qi characterizes ".The present Research of electromagnetic wave transparent material high-temperature dielectric constant test is described in detail: the 70-80 age in 20th century in document, the NASA LRC (Langley Research Center) of the U.S. tests the specific inductive capacity at wave transparent window candidate material 1200 DEG C, have employed terminal short circuit, rectangular waveguide is as microwave transmission line, bibliographical information selects platinum-rhodium alloy (maximum operation (service) temperature 1800 DEG C) to make microwave device, but does not carry out test error analysis.
In sum, meet the study hotspot that the specific inductive capacity measuring material under temperature match curing conditions becomes this area, and can the instrument designing the specific inductive capacity of a Measurement accuracy material under alternating temperature also become those skilled in the art's problem demanding prompt solution.
Utility model content
In order to overcome defect of the prior art, solve the specific inductive capacity problem during mensuration material temperature change that existing dielectric constant measurement equipment can not be real-time, the utility model provides a kind of material dielectric constant temperature variation testing instrument, this material dielectric constant temperature variation testing instrument, structure is simple, test effect is accurate, applied widely.
For solving the problems of the technologies described above, technical solutions of the utility model are as follows:
A kind of material dielectric constant temperature variation testing instrument, comprises material gearing and control analysis device:
Described material gearing includes: resonator cavity, heat insulating belt, heating furnace, transmission pole;
Control analysis device includes: vector network analyzer, Heating Furnace Control instrument, transmission control unit (TCU) and General controller;
Described resonator cavity is connected with described heating furnace by described heat insulating belt; The free end of described transmission pole can extend to described heating furnace and through heat insulating belt arrives resonator cavity, and the other end is fixedly connected on described transmission control unit (TCU);
Described General controller is connected with described vector network analyzer, described Heating Furnace Control instrument and described transmission control unit (TCU) respectively, and described vector network analyzer is connected with resonator cavity, and described Heating Furnace Control instrument is connected with described heating furnace.
Further, the length of described transmission pole is: 1.5-3m.
Further, any one during the free end of described transmission pole is provided with for holding measured object groove, pallet or clip.
Preferably, the free end of described transmission pole is provided with the pallet for holding measured object.
Further, the body of rod of described transmission pole is provided with stretching structure.
Further, described transmission control unit (TCU) controls the telescopic extensions of described transmission pole.
Further, described General controller can be computing machine; Described General controller is for controlling the output of material gearing and specific inductive capacity.
Further, the thickness of described heat insulating belt is: 10-15cm.
Further, thermopair is provided with in described heating furnace.
The beneficial effects of the utility model are: on material dielectric constant temperature variation testing instrument, arrange heating furnace, testing sample is sent into heating furnace by conveyer and is heated, heating-up temperature is monitored in real time by thermopair, to be sent in resonator cavity by conveyer subsequently and to complete the test of specific inductive capacity, test result is provided by computing machine, not only reach the object of the specific inductive capacity measuring material in real time, the prior art of effective solution can not realize the problem of test material specific inductive capacity under temperature match curing conditions, and it is simple to have device, easy to operate, wide and the measurement result advantage accurately of temperature measuring scope.
Accompanying drawing explanation
Figure 1 shows that the utility model structural representation;
1-resonator cavity in figure, 2-heat insulating belt, 3-heating furnace, 4-transmission pole, 5-vector network analyzer, 6-Heating Furnace Control instrument, 7-General controller, 8-transmission control unit (TCU).
Embodiment
Hereafter will describe this embodiment by reference to the accompanying drawings in detail.It should be noted that the combination of technical characteristic or the technical characteristic described in following embodiment should not be considered to isolated, they can mutually be combined thus be reached better technique effect.
Embodiment 1:
A kind of material dielectric constant temperature variation testing instrument as shown in Figure 1, comprises material gearing and control analysis device: described material gearing includes: resonator cavity 1, heat insulating belt 2, heating furnace 3, transmission pole 4; Control analysis device includes: vector network analyzer 5, Heating Furnace Control instrument 6, transmission control unit (TCU) 8 and General controller 7; Described resonator cavity 1 is connected with described heating furnace 3 by described heat insulating belt 2; The free end of described transmission pole 4 can extend to described heating furnace 3 and through heat insulating belt 2 arrives resonator cavity 1, and the other end is fixedly connected on described transmission control unit (TCU) 8; Described General controller 7 is connected with described vector network analyzer 5, described Heating Furnace Control instrument 6 and described transmission control unit (TCU) 8 respectively, and described vector network analyzer 5 is connected with resonator cavity 1, and described Heating Furnace Control instrument 6 is connected with described heating furnace 3.
The length of described transmission pole is: 1.5-3m; The free end of described transmission pole 4 be provided with in groove, pallet or the clip for holding measured object any one, be preferably pallet; Described transmission control unit (TCU) 8 controls the telescopic extensions of described transmission pole 4, and the body of rod of described transmission pole 4 is provided with stretching structure; Described General controller 7 is computing machines, and described General controller 7 is for controlling the output of material gearing and specific inductive capacity; The thickness of described heat insulating belt 2 is: 10-15cm, and material is heat-barrier material.
The using method of material dielectric constant temperature variation testing instrument is:
As shown in Figure 1, middle testing sample is placed on the measured object pallet of transmission pole 4, be sent in heating furnace 3 and heat, be heated to temperature required after, continue to transfer in resonator cavity 1, according to specific inductive capacity resonant cavity perturbation method assay method working sample dielectric properties, in the middle of heating furnace 3 resonant cavity 1, heat insulating belt 2 is set, heat insulating belt 2 is set to reach protection resonator cavity 1 object; Control for Kiln Temperature is controlled by Furnace Temperature Controller 6, and material gearing and specific inductive capacity calculate and completed by General controller 7.
The utility model arranges heating furnace 3 on material dielectric constant temperature variation testing instrument, testing sample is sent into heating furnace 3 by conveyer and is heated, heating-up temperature is monitored in real time by thermopair, to be sent in resonator cavity 1 by conveyer subsequently and to complete the test of specific inductive capacity, test result is provided by computing machine, not only reach the object of the specific inductive capacity measuring material in real time, the prior art of effective solution can not realize the problem of test material specific inductive capacity under temperature match curing conditions, and it is simple to have device, easy to operate, the wide and measurement result advantage accurately of temperature measuring scope.
Although given embodiments more of the present utility model, it will be understood by those of skill in the art that when not departing from the utility model spirit herein, can change embodiment herein.Above-described embodiment is exemplary, should using embodiment herein as the restriction of this interest field.
Claims (8)
1. a material dielectric constant temperature variation testing instrument, is characterized in that, comprises material gearing and control analysis device:
Described material gearing includes: resonator cavity, heat insulating belt, heating furnace, transmission pole;
Control analysis device includes: vector network analyzer, Heating Furnace Control instrument, transmission control unit (TCU) and General controller;
Described resonator cavity is connected with described heating furnace by described heat insulating belt; The free end of described transmission pole can extend to described heating furnace and through heat insulating belt arrives resonator cavity, and the other end is fixedly connected on described transmission control unit (TCU);
Described General controller is connected with described vector network analyzer, described Heating Furnace Control instrument and described transmission control unit (TCU) respectively, and described vector network analyzer is connected with resonator cavity, and described Heating Furnace Control instrument is connected with described heating furnace.
2. a kind of material dielectric constant temperature variation testing instrument as claimed in claim 1, it is characterized in that, the length of described transmission pole is: 1.5-3m.
3. a kind of material dielectric constant temperature variation testing instrument as claimed in claim 1, is characterized in that, the free end of described transmission pole be provided with in groove, pallet or the clip for holding measured object any one.
4. a kind of material dielectric constant temperature variation testing instrument as claimed in claim 3, is characterized in that, the free end of described transmission pole is provided with the pallet for holding measured object.
5. a kind of material dielectric constant temperature variation testing instrument as claimed in claim 1, is characterized in that, the body of rod of described transmission pole is provided with stretching structure.
6. a kind of material dielectric constant temperature variation testing instrument as claimed in claim 1, it is characterized in that, described General controller is computing machine.
7. a kind of material dielectric constant temperature variation testing instrument as claimed in claim 1, it is characterized in that, the thickness of described heat insulating belt is: 10-15cm.
8. a kind of material dielectric constant temperature variation testing instrument as claimed in claim 1, is characterized in that, be provided with thermopair in described heating furnace.
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| CN201520375057.XU CN204666730U (en) | 2015-06-03 | 2015-06-03 | A kind of material dielectric constant temperature variation testing instrument |
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| CN201520375057.XU CN204666730U (en) | 2015-06-03 | 2015-06-03 | A kind of material dielectric constant temperature variation testing instrument |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974345A (en) * | 2016-04-27 | 2016-09-28 | 电子科技大学 | High temperature calibration method of free space terminal short circuit method complex dielectric constant test system |
| CN106707033A (en) * | 2016-12-08 | 2017-05-24 | 北京师范大学 | Variable-temperature dielectric constant measurement pool for liquid and solid-liquid phase change |
| CN108828380A (en) * | 2018-09-17 | 2018-11-16 | 南京航空航天大学 | Material measuring electromagnetic parameters apparatus and method in microwave heating process |
| CN109212320A (en) * | 2017-06-30 | 2019-01-15 | 北京航空航天大学 | Composite material dielectric constant measuring apparatus and method under stress |
| CN109374691A (en) * | 2018-10-19 | 2019-02-22 | 沈阳师范大学 | The device and method of microwave measurement graphite alkenes Dielectric constant changing rule |
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2015
- 2015-06-03 CN CN201520375057.XU patent/CN204666730U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974345A (en) * | 2016-04-27 | 2016-09-28 | 电子科技大学 | High temperature calibration method of free space terminal short circuit method complex dielectric constant test system |
| CN105974345B (en) * | 2016-04-27 | 2018-09-18 | 电子科技大学 | Free space terminal short circuit complex dielectric permittivity tests system high temperature calibration method |
| CN106707033A (en) * | 2016-12-08 | 2017-05-24 | 北京师范大学 | Variable-temperature dielectric constant measurement pool for liquid and solid-liquid phase change |
| CN106707033B (en) * | 2016-12-08 | 2019-06-21 | 北京师范大学 | A kind of alternating temperature dielectric constant measurement pond for liquid and solid-liquid phase change |
| CN109212320A (en) * | 2017-06-30 | 2019-01-15 | 北京航空航天大学 | Composite material dielectric constant measuring apparatus and method under stress |
| CN108828380A (en) * | 2018-09-17 | 2018-11-16 | 南京航空航天大学 | Material measuring electromagnetic parameters apparatus and method in microwave heating process |
| CN108828380B (en) * | 2018-09-17 | 2020-12-15 | 南京航空航天大学 | Material electromagnetic parameter measuring device and method in microwave heating process |
| CN109374691A (en) * | 2018-10-19 | 2019-02-22 | 沈阳师范大学 | The device and method of microwave measurement graphite alkenes Dielectric constant changing rule |
| CN109374691B (en) * | 2018-10-19 | 2020-10-30 | 沈阳师范大学 | Device and method for measuring dielectric constant change rule of graphene solution by microwave |
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| 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: 20150923 Termination date: 20160603 |