CN205080195U - Compact band stop resonant cavity anchor clamps - Google Patents
Compact band stop resonant cavity anchor clamps Download PDFInfo
- Publication number
- CN205080195U CN205080195U CN201520585093.9U CN201520585093U CN205080195U CN 205080195 U CN205080195 U CN 205080195U CN 201520585093 U CN201520585093 U CN 201520585093U CN 205080195 U CN205080195 U CN 205080195U
- Authority
- CN
- China
- Prior art keywords
- rear end
- end cap
- resonator cavity
- inner core
- sidewall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Landscapes
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The utility model discloses a compact band stop resonant cavity anchor clamps. These anchor clamps include: front end housing, rear end cap, lateral wall and inner core. Front end housing, rear end cap and lateral wall enclose into the resonant cavity jointly, the through -hole has been offered at the center of front end housing and rear end cap, and the inner core passes the through -hole and fixes on front end housing and rear end cap to constitute coaxial high frequency transmission line structure jointly with front end housing and rear end cap, lateral wall one side has windows, with front end housing and rear end cap formation test piece loading window, through detecting unloaded resonance characteristic data and loading resonance characteristic data, calculates the dielectric constant and/or the variation in thickness data that obtain the test piece. The utility model relates to a manufacturing is simple, is showing to reduce the resonant cavity structure size, reduces the processing requirement, measures not influenced by the higher mode, and the measuring accuracy is higher relatively. In addition, owing to the test piece can pass through at test piece loading window in succession in the non -contact, the utility model discloses also can be used to the online non -contact measurement of test piece dielectric constant and/or variation in thickness.
Description
Technical field
The utility model relates to electromagnetic resonance detection technique field and technical field of non-contact measurement, particularly relates to a kind of compact band resistance resonator cavity fixture.
Background technology
The application of dielectric substance in microwave device, microwave system is very extensive; And specific inductive capacity is the key property parameter of dielectric substance, conclusive effect is played to device performance.Therefore, in the development and application process of these dielectric materials, need to measure accurately its specific inductive capacity.
At present, the mensuration of specific inductive capacity mainly adopts Transmission line method, capacitance method, resonance method and radiation method etc.Wherein, resonance method estimating precision is the highest, but due to some condition lower volume of resonator cavity test fixture large, expensive, limit widespread use.As the measurement mechanism in Chinese patent application (CN103149449A), by the change inverting dielectric permittivity of the reflection coefficient before and after filling, this device, due to needs filled media material, needs volume very huge, is unfavorable for widespread use.
In addition, the noncontact for variation in thickness measures, extremely important to industrial online QC/product control link, mainly adopts capacitance method at present, diffraction approach etc.Because capacitance method precision is lower, and diffraction approach requires higher, is all not suitable for industrial mass operation, and is more scabrous technical matters in ability always.
Utility model content
The technical problems to be solved in the utility model is, the compact band resistance resonator cavity fixture providing a kind of specific inductive capacity and/or variation in thickness to measure and test specimen assay method.
The utility model solves the technical scheme that its technical matters adopts: construct a kind of compact band resistance resonator cavity fixture, comprising:
Front end end cover, rear end cap, sidewall and inner core;
Described front end end cover, rear end cap and sidewall surround resonator cavity jointly;
The center of described front end end cover and rear end cap offers through hole, and described inner core is fixed on described front end end cover and rear end cap through described through hole, and jointly forms co-axial high-frequency transmission line structure with described front end end cover and rear end cap;
Described sidewall side has windows, and forms the test specimen that can continue through for test specimen load window with described front end end cover and rear end cap.
In compact band resistance resonator cavity fixture of the present utility model, described front end end cover is circular front end lid; Described rear end cap is rounded back end lid;
Described sidewall is arranged on described circular front end lid and rounded back end lid circumferentially, and described sidewall offer described in window, such that one section of periphery of described circular front end lid and rounded back end lid is open to be formed described test specimen and load window.
In compact band resistance resonator cavity fixture of the present utility model, described through hole is manhole, and the axis coaxle of the axis of described manhole and described circular front end lid and rounded back end lid; The axis of described inner core and the axis coaxle of described manhole, described resonator cavity is coaxial resonant cavity.
In compact band resistance resonator cavity fixture of the present utility model, the outside of described through hole has coaxial connector; The axis of described coaxial connector and the axis coaxle of described inner core.
In compact band resistance resonator cavity fixture of the present utility model, described inner core is positioned at interconnection network analyser in two ends outside described front end end cover and rear end cap.
In compact band resistance resonator cavity fixture of the present utility model, described front end end cover and rear end cap adopt hard metal to be processed into.
In compact band resistance resonator cavity fixture of the present utility model, the inwall of described front end end cover, rear end cap and sidewall is electroplate with good conductive coating, and described good conductive coating comprises silvering or gold plate.
The utility model provides a kind of test specimen assay method utilizing compact band to hinder resonator cavity fixture further, comprises the following steps:
S1: be connected with the port of analyser respectively at the two ends of inner core, introduces high-frequency signal to resonator cavity, and detects the resonance characteristic data of resonator cavity by analyser;
S2: when the non-loading specimen of test specimen loading window, record the no load resonance performance data of described resonator cavity;
S3: load loading specimen in window at described test specimen, and record the loading resonance characteristic data of described resonator cavity;
S4: according to described no load resonance performance data and loading resonance characteristic data, analytical calculation obtains specific inductive capacity and/or the thickness variation data of described test specimen.
In test specimen assay method of the present utility model, described no load resonance performance data comprises unloaded band resistance resonance frequency point data; Described loading resonance characteristic data comprise loaded ribbon resistance resonance frequency point data.
In the described step S4 of test specimen assay method of the present utility model, by contrasting described zero load band resistance resonance frequency point data and loaded ribbon resistance resonance frequency point data, calculate the Mobile data of frequency, calculate specific inductive capacity and/or the thickness variation data of described test specimen.
Implement the technical solution of the utility model, at least there is following beneficial effect: the utility model loads window loading specimen by resonator cavity test specimen, detect no load resonance performance data and load resonance characteristic data, calculating specific inductive capacity and/or the thickness variation data of test specimen; Manufacture and design simple, significantly reduce cavity resonator structure size, reduce processing request, measure and substantially do not affect by higher mode, measuring accuracy is relatively high.
In addition, can noncontact continue through because test specimen loads window at test specimen, the utility model also can be used for test specimen specific inductive capacity and/or the online non-cpntact measurement of variation in thickness.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the assembling schematic diagram of an embodiment of compact band of the present utility model resistance resonator cavity fixture;
Fig. 2 is the assembling schematic diagram of another angle of an embodiment of compact band of the present utility model resistance resonator cavity fixture;
Fig. 3 is the decomposing schematic representation of an embodiment of compact band of the present utility model resistance resonator cavity fixture;
Fig. 4 is the schematic diagram after the loading specimen of an embodiment of compact band of the present utility model resistance resonator cavity fixture;
Resonance characteristic schematic diagram data when Fig. 5 is an embodiment of compact band of the present utility model resistance resonator cavity fixture unloaded;
Resonance characteristic schematic diagram data when Fig. 6 is the loading specimen of an embodiment of compact band of the present utility model resistance resonator cavity fixture.
Embodiment
In order to there be understanding clearly to technical characteristic of the present utility model, object and effect, now contrast accompanying drawing and describe embodiment of the present utility model in detail.
As shown in figures 1 to 6, be a specific embodiment of compact band of the present utility model resistance resonator cavity fixture, can be connected with analyser, this fixture and method can be used for the online non-cpntact measurement of test specimen, to measure specific inductive capacity and/or the thickness variation data of test specimen 20.Understandable, this analyser can be network analyzer or other analytical instrument, and the resonance characteristic data that can receive from compact band resistance resonator cavity fixture carry out Inversion Calculation.
This compact band resistance resonator cavity fixture comprises front end end cover 11, rear end cap 12, sidewall 13 and inner core 14.Wherein, front end end cover 11, rear end cap 12 and sidewall 13 surround resonator cavity jointly, and formation is windowed in the side of sidewall 13, form the test specimen passed through for test specimen 20 load window 15 with front end end cover 11 and rear end cap 12.The test specimen 20 loading window 15 size fit with test specimen can be continuously through, by the movement of band resistance resonance frequency, measures (aftermentioned in detail) specific inductive capacity and/or variation in thickness.
Because test specimen loads the side that window 15 is arranged on fixture, the continuous loading of test specimen 20 can be realized, can being applied on flat board or film line, to the dull and stereotyped or online noncontact continuous detecting in real time of film thickness, being conducive to needing the strict production controlling flat plates or film.
As shown in the figure, in the present embodiment, front end end cover 11 is circular front end lid 11, has manhole at circle centre position, passes for inner core 14; The outside circle centre position of front end end cover 11 has coaxial connector 16, for connecting inner core 14 and external network analyser.
Rear end cap 12 is with as rounded back end lid 12, and also have manhole at circle centre position, pass for inner core 14, the outside circle centre position of rear end cap 12 has coaxial connector 16, for connecting inner core 14 and external network analyser.
The axis of this manhole and the axis coaxle of circular front end lid 11 and rounded back end lid 12; The axis of inner core 14 and the axis coaxle of manhole, resonator cavity is coaxial resonant cavity.Adopt coaxial line structure resonator cavity, be operated in TEM pattern, its structure is relatively simple, and volume is 1/10 ~ 1/50 of waveguide resonant cavity, and handling ease, cost are low.And, can also Contactless-type measurement be realized, both reduce the volume of test fixture, in turn ensure that the precision of test.
In the present embodiment, this sidewall 13 is structure as a whole with rounded back end lid 12, arranges, and connect with the periphery of circular front end lid 11 at the periphery of rounded back end lid 12, composition coaxial resonant cavity.Meanwhile, formed in the side of sidewall 13 and window, make the open test specimen that formed of one section of periphery of circular front end lid 11 and rounded back end lid 12 load window 15, can be continuously through for test specimen 20.This version forms asymmetric dielectric and loads, thus can provide the different accuracy that dielectric permittivity is tested.
Understandable, this sidewall 13 also can be wholely set with front end end cover 11, then with the periphery split of rear end cap 12; Or sidewall 13, front end end cover 11, rear end cap 12 are individual member, sidewall 13 is fixedly installed on the periphery of front end end cover 11 and rear end cap 12 by various modes such as welding, cohere.
This front end end cover 11, rear end cap 12 and sidewall 13 can adopt hard metal to be processed into, and can adopt copper, iron, stainless steel, the material that the physical strengths such as duralumin are enough.Further, be also electroplate with good conductive coating at the inwall of front end end cover 11, rear end cap 12, sidewall 13, as silvering or gold plate etc., the high frequency Q value of whole fixture can be improved, be conducive to improving measuring accuracy.
This fixture can customize size according to the size of test specimen and test specimen specific inductive capacity, corresponding, the size that test specimen loads window 15 also can design according to the thickness of test specimen; Such as test specimen loads window 15 and is of a size of 2mm, can test thickness within 2mm, all test specimens that specific inductive capacity is less than 10.
As shown in Figure 1, 2, be the constitutional diagram of front end end cover 11, rear end cap 12 and sidewall 13.Front end end cover 11, rear end cap 12 and sidewall 13 common combination form cylindrical cavity.Inner core 14, by manhole and two coaxial connectors 16, is fixed on front end end cover 11 and rear end cap 12, changes inner core 14 and jointly forms co-axial high-frequency transmission line structure, for transmitting high-frequency signal with front end end cover 11, rear end cap 12.
Part of windowing forms test block with cylindrical cavity and loads window 15, for loading flat board or inner core 14 is connected with external network analyser, for analyzing the band-stop response in resonator cavity by films test part 20, two coaxial connectors 16.
The compact band resistance resonator cavity fixture of the present embodiment is the characteristic utilizing specific inductive capacity to cause the movement of band resistance resonance frequency in coaxial resonator, after loading specimen 20 in the test specimen loading window 15 of detection coaxial resonator, the movement of monitoring band resistance resonance frequency, by numerical analysis, obtain the specific inductive capacity being loaded test specimen 20.Because coaxial resonator is very responsive to the change of specific inductive capacity, and test specimen 20 is under the relatively stable prerequisite of self specific inductive capacity, variation in thickness can cause the change of effective dielectric constant, thus coaxial resonator band also can be caused to hinder the movement of resonance frequency, so moved by detection zone resistance resonance frequency, and numerical analysis, can also Non-contact nondestructive test loading specimen 20 variation in thickness.
Concrete, utilizing this compact band to hinder resonator cavity fixture, to carry out test specimen 20 assay method as follows: first, is connected respectively at the two ends of inner core 14 with the port of analyser, introduces high-frequency signal to resonator cavity, and by the resonance characteristic data of analyser detection resonator cavity.Understandable, analyser can be network analyzer, and the two ends of inner core 14 can connect with network analyzer respectively by coaxial connector 16, and network analyzer detects resonance characteristic data, further analytical calculation.
When test specimen loads window 15 non-loading specimen 20, the no load resonance performance data of record resonator cavity; To meet the test specimen 20 of dimensional requirement again, and load window 15 put into resonator cavity from test specimen, as shown in Figure 4, and record loads resonance characteristic data.Then, according to no load resonance performance data and loading resonance characteristic data, analytical calculation obtains specific inductive capacity and/or the thickness variation data of institute's loading specimen 20.
In the present embodiment, no load resonance performance data comprises unloaded band resistance resonance frequency point data; Load resonance characteristic data and comprise loaded ribbon resistance resonance frequency point data.By contrasting unloaded band resistance resonance frequency point data and loaded ribbon resistance resonance frequency point data, calculating the Mobile data of frequency, calculating specific inductive capacity and/or the thickness variation data of test specimen 20.
As shown in Figure 5, the concentric zones of the present utility model shown for network analyzer hinders the schematic diagram of " V " shape no load resonance performance data of resonator cavity fixture when zero load.As shown in Figure 6, be the schematic diagram of " V " shape loaded ribbon resistance resonance characteristic data of concentric zones resistance resonator cavity fixture of the present utility model when being loaded with test specimen 20 of network analyzer display.
Because this " V " shape band resistance transfer curve is very responsive to change in dielectric constant in fixture.Comparison diagram 5, Fig. 6 can see, when loading loading flat board or film test piece 20 in window 15 at test specimen, specific inductive capacity generation significant change in fixture, cause the humorous transport property change of band resistance, can observe significantly " V " shape band resistance tuning-points to move in the display of network analyzer transformation parameter, loaded ribbon resistance resonance frequency obviously moves to left as shown in Figure 6.By the analytical calculation to " V " shape band resistance tuning-points movement, can calculate loads the specific inductive capacity of flat board or film test piece 20; And, test specimen 20 is under the relatively stable prerequisite of self specific inductive capacity, variation in thickness can cause the change of effective dielectric constant, thus coaxial resonator band also can be caused to hinder the movement of resonance frequency, so moved by detection zone resistance resonance frequency, and numerical analysis, can also Non-contact nondestructive test loading specimen 20 variation in thickness.This numerical analysis method can adopt interpolation algorithm, such as, within being thickness 2mm for the test request of test test specimen, within specific inductive capacity 10, structure meets the test specimen property database of this test request, test specimen characteristic is recorded during actual test, by with data base querying and precise interpolation algorithm, can the actual (real) thickness of inverting test specimen or specific inductive capacity.
Traditional rectangular or cylindrical waveguide resonant cavity test fixture, utilize the logical resonance frequency of band to move, complete specific inductive capacity test, but can not carry out variation in thickness test, more can not carry out the online Non-contact nondestructive test of commercial production.In the present embodiment, utilize the movement of band resistance resonance frequency and the test specimen of innovative design to load window 15, complete the Non-contact nondestructive test of specific inductive capacity and variation in thickness, can be used for industrial online QC/product control important step, there is higher use value.
In addition, conventional resonance chamber affects due to higher mode, and design and manufacture is complicated, and size is large, and processing request is high, and cost is high.The present embodiment is then utilize TEM banding to hinder resonance structure, does not substantially affect by higher mode, and design processing is simple, and under same low frequency resonance frequency condition, volume is 1/10 ~ 1/50 of conventional resonance cavity volume, and structure is relatively simple, and handling ease, cost is low.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various change, combination and change.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within right of the present utility model.
Claims (7)
1. a compact band resistance resonator cavity fixture, is characterized in that, comprising:
Front end end cover (11), rear end cap (12), sidewall (13) and inner core (14);
Described front end end cover (11), rear end cap (12) and sidewall (13) surround resonator cavity jointly;
The center of described front end end cover (11) and rear end cap (12) offers through hole, described inner core (14) is fixed on described front end end cover (11) and rear end cap (12) through described through hole, and jointly forms co-axial high-frequency transmission line structure with described front end end cover (11) and rear end cap (12);
Described sidewall (13) side has windows, and forms the test specimen passed through for test specimen (20) load window (15) with described front end end cover (11) and rear end cap (12).
2. compact band resistance resonator cavity fixture according to claim 1, it is characterized in that, described front end end cover (11) is circular front end lid (11); Described rear end cap (12) is rounded back end lid (12);
Described sidewall (13) is arranged on described circular front end lid (11) and rounded back end lid (12) circumferentially, and window described in described sidewall (13) offers, make the described test specimen of the open formation of one section of periphery of described circular front end lid (11) and rounded back end lid (12) load window (15).
3. compact band resistance resonator cavity fixture according to claim 2, it is characterized in that, described through hole is manhole, and the axis coaxle of the axis of described manhole and described circular front end lid (11) and rounded back end lid (12); The axis of described inner core (14) and the axis coaxle of described manhole, described resonator cavity is coaxial resonant cavity.
4. the compact band resistance resonator cavity fixture according to any one of claim 1-3, it is characterized in that, the outside of described through hole has coaxial connector (16); The axis of described coaxial connector (16) and the axis coaxle of described inner core (14).
5. the compact band resistance resonator cavity fixture according to any one of claim 1-3, is characterized in that, described inner core (14) is positioned at described front end end cover (11) and two ends, rear end cap (12) outside interconnection network analyser.
6. the compact band resistance resonator cavity fixture according to any one of claim 1-3, it is characterized in that, described front end end cover (11) and rear end cap (12) adopt hard metal to be processed into.
7. compact band resistance resonator cavity fixture according to claim 6, it is characterized in that, the inwall of described front end end cover (11), rear end cap (12) and sidewall (13) is electroplate with good conductive coating, and described good conductive coating comprises silvering or gold plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520585093.9U CN205080195U (en) | 2015-08-05 | 2015-08-05 | Compact band stop resonant cavity anchor clamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520585093.9U CN205080195U (en) | 2015-08-05 | 2015-08-05 | Compact band stop resonant cavity anchor clamps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205080195U true CN205080195U (en) | 2016-03-09 |
Family
ID=55432593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520585093.9U Withdrawn - After Issue CN205080195U (en) | 2015-08-05 | 2015-08-05 | Compact band stop resonant cavity anchor clamps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205080195U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067895A (en) * | 2015-08-05 | 2015-11-18 | 袁渊 | Compact type band-stop resonant cavity fixture and test piece determination method |
-
2015
- 2015-08-05 CN CN201520585093.9U patent/CN205080195U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067895A (en) * | 2015-08-05 | 2015-11-18 | 袁渊 | Compact type band-stop resonant cavity fixture and test piece determination method |
| CN105067895B (en) * | 2015-08-05 | 2018-07-20 | 深圳鼎缘电子科技有限公司 | Compact band hinders resonant cavity fixture and test specimen assay method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100523834C (en) | Circular waveguide standing wave measurement device for eight mm waveband dielectric measurement | |
| CN108594023A (en) | Material complex dielectric permittivity based on gradation type coaxial resonant cavity tests system and method | |
| CN103308778B (en) | Dielectric constant measuring apparatus | |
| CN102590230A (en) | Microwave resonant cavity sensor and measurement system for measuring concentration of solution | |
| CN112505429B (en) | Complex dielectric constant test system and test method based on coaxial strip line resonator | |
| CN101344495A (en) | Measuring apparatus for reflection index of wave suction material | |
| CN201266180Y (en) | Measuring apparatus for reflection index of wave suction material | |
| CN108872007B (en) | Double-block ring magnet magnetic suspension detection method for detecting density | |
| CN110806416B (en) | Multifunctional sensor for simultaneously measuring humidity, temperature and material complex dielectric constant | |
| WO2020181789A1 (en) | Test system for microwave dielectric changes of solid material during force bearing process | |
| CN107132420B (en) | The microwave complex dielectric constant test macro and method of low loss dielectric powder or liquid | |
| CN110398636B (en) | Liquid dielectric constant sensor based on miniaturized dielectric resonator antenna and application | |
| CN205080195U (en) | Compact band stop resonant cavity anchor clamps | |
| CN111289568A (en) | Measuring device and measuring method for measuring microwave ferrite material | |
| CN109212322A (en) | A kind of method of Multifunctional rectangular chamber perturbation method detection nano thin-film complex permittivity | |
| CN109633273B (en) | Open-hole load impedance test system and method | |
| Piekarz et al. | Test tube dedicated microwave liquid dielectric sensor for non-contact properties change monitoring and material characterization with tube exchange capability | |
| CN105067895A (en) | Compact type band-stop resonant cavity fixture and test piece determination method | |
| Jiang et al. | Design of high sensitivity microfluidic sensor based on CSRR with interdigital structure | |
| CN107328380B (en) | Coating thickness gauge probe | |
| CN111679131A (en) | Method for measuring dielectric constant of thick film material | |
| CN106949860A (en) | Inner-walls of duct detecting system and method | |
| CN115963327A (en) | Microwave material electromagnetic parameter measuring method | |
| CN115184688A (en) | Micro-strip resonance sensor and method for measuring dielectric constant of dangerous liquid based on CSRR (China research and research center) | |
| CN114384095A (en) | Planar microwave sensor based on triangular resonator and concentration measurement method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171110 Address after: 9-2B, Shannon central, Shannon Road, Xiangmi Lake street, Futian District, Guangdong, Shenzhen Patentee after: Shenzhen Ding edge Electronic Technology Co., Ltd. Address before: Room 24, building D block 11 Chinese Hongkong Ap Lei Chau Yee Fung Court Patentee before: Yuan Yuan |
|
| TR01 | Transfer of patent right | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160309 Effective date of abandoning: 20180720 |
|
| AV01 | Patent right actively abandoned |