CN207517843U - A kind of continuous automatically controlled resonator and its control system - Google Patents
A kind of continuous automatically controlled resonator and its control system Download PDFInfo
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- CN207517843U CN207517843U CN201721312298.5U CN201721312298U CN207517843U CN 207517843 U CN207517843 U CN 207517843U CN 201721312298 U CN201721312298 U CN 201721312298U CN 207517843 U CN207517843 U CN 207517843U
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- resonator
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- automatically controlled
- coupling ring
- control panel
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- 230000008878 coupling Effects 0.000 claims abstract description 28
- 238000010168 coupling process Methods 0.000 claims abstract description 28
- 238000005859 coupling reaction Methods 0.000 claims abstract description 28
- 239000004020 conductor Substances 0.000 claims abstract description 27
- 229910052454 barium strontium titanate Inorganic materials 0.000 claims abstract description 12
- 230000005684 electric field Effects 0.000 claims description 10
- 239000000523 sample Substances 0.000 claims description 8
- 230000003321 amplification Effects 0.000 claims description 6
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000004088 simulation Methods 0.000 claims 1
- 230000008859 change Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 4
- 239000003989 dielectric material Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910002113 barium titanate Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 229910002370 SrTiO3 Inorganic materials 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 239000012611 container material Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical group [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
Abstract
This application involves a kind of continuous automatically controlled resonator and its control systems, wherein, the resonator includes the cylinder being made of barium strontium titanate, the cylinder offers cylindrical cavities along the direction of axial line, the outside of the cylinder has first electrode, has second electrode on the inner wall of the cylindrical cavities；Wherein, the first electrode is in contact with outer conductor, and the second electrode is in contact with center conductor；The first coupling ring and the second coupling ring are additionally provided in the resonator, wherein, for injecting microwave signal into the resonator, second coupling ring is used to export microwave signal out of described resonator first coupling ring.Technical solution provided by the utility model can carry out automatically controlled adjusting to the resonant frequency of resonator.
Description
Technical field
This application involves microwave technical field, more particularly to a kind of continuous automatically controlled resonator and its control system.
Background technology
At present, microwave resonance cavity detector and microwave cavity narrow band filter realize that the mode of frequency modulation mainly has：Change
Length, addition medium, selection higher hamonic wave of resonator etc..
Wherein, in the length for changing resonator, frequency can be improved to reduce by increasing or reducing the size of resonator
Rate, but due to the limitation of cutoff frequency and usage scenario, the size of resonator cannot be increased or reduced infinitely.In addition, size is got over
Small, the requirement to the precision and manufacture craft of element is also higher, therefore, resonant frequency is improved by the adjusting of size
It is restricted.
The offset of resonant frequency is realized by filled media, it is difficult to automatically controlledization is realized, because of the offset of resonant frequency
Related with the dielectric constant and its volume of filled media, for filling white stone, the volume of filling gets over the attenuating of multi resonant vibration frequency
It is more.Therefore, tuning process automatically controlledization is difficult to realize.
By higher hamonic wave come to realize the adjustment of resonant frequency be feasible in theory.But in the mistake of practical application
Cheng Zhong, due to factors such as processing technologys, the problems such as often frequency selectivity is deteriorated higher hamonic wave, clutter is more, quality factor reduction,
Therefore the tuning manner of multiple harmonic hardly results in utilization.
It can be seen that currently there is an urgent need for a kind of effective resonator tuning manners.
Utility model content
The purpose of this utility model is to provide a kind of continuous automatically controlled resonator and its control systems, can be to resonator
Resonant frequency carries out automatically controlled adjusting.
To achieve the above object, the application provides a kind of continuous automatically controlled resonator, and the resonator is included by barium strontium titanate
The cylinder of composition, the direction of the cylinder along axial line offer cylindrical cavities, and the outside of the cylinder is with the
One electrode has second electrode on the inner wall of the cylindrical cavities；Wherein, the first electrode is in contact with outer conductor, institute
Second electrode is stated to be in contact with center conductor；The first coupling ring and the second coupling ring are additionally provided in the resonator, wherein, institute
The first coupling ring is stated for injecting microwave signal into the resonator, second coupling ring is for defeated out of described resonator
Go out microwave signal.
Further, be provided with the upper end cover perpendicular with the axial line of the resonator in the resonator, it is described on
The center of end cap offers the through-hole for the center conductor to be passed through；Described in being connected on the upper end cover by sub-miniature A connector
First coupling ring and second coupling ring.
Further, the upper end of the center conductor is connected by shaft coupling with motor, and the lower end of the center conductor is in
Back taper, and probe is embedded in the lower end of the center conductor, it is coupled with sample to be tested below the probe.
To achieve the above object, the application also provides a kind of control system, and the control system includes Power Supply Assembly, amplification
Circuit and control panel, wherein：The Power Supply Assembly is connected with 220V AC powers, and the 220V AC powers are converted to
The DC output power of 5V, 15V and 200V；The control panel is connected with host computer, to receive the control that the host computer issues
System instruction, and generate and the corresponding analog voltage of the control instruction；The control panel is also connected with the amplifying circuit, with
The analog voltage is provided to the amplifying circuit；The control panel is also connected with the Power Supply Assembly, to receive the power supply
5V the and 15V DC output powers that component provides；The amplifying circuit is connected with the control panel, is sent out with receiving the control panel
The analog voltage come, and by after analog voltage amplification, amplified voltage is supplied to the continuous automatically controlled resonator,
To generate electric field between the first electrode and second electrode of the continuous automatically controlled resonator；The amplifying circuit also with the confession
Electrical component is connected, to receive the 200V DC output powers of the Power Supply Assembly.
Further, the Power Supply Assembly includes the rectification circuit, filter circuit and regulator circuit being sequentially connected, institute
It states rectification circuit with the 220V AC powers to be connected, the output terminal of the regulator circuit provides the direct current of 5V, 15V and 200V
Out-put supply.
Further, the control panel includes central processing unit and digital analog converter, wherein, the central processing unit with
The host computer is connected, to receive the control instruction that the host computer issues；The central processing unit and the digital analog converter
It is connected, with to digital analog converter transmission and the corresponding digital signal of the control instruction, the digital signal is by described
Digital analog converter is converted to the analog voltage.
Further, analog-digital converter is further included in the control panel, the analog-digital converter is electric with the amplification respectively
The output terminal on road and the central processing unit are connected；The analog-digital converter be used for the output voltage of the amplifying circuit into
Row sampling, and sampled result is fed back into the central processing unit, so that digital signal of the central processing unit to transmission
It is modified.
Compared with prior art, the technical solution of the application includes advantages below：The utility model uses barium strontium titanate
(BaxSr1-xTiO4) as coaxial resonant cavity filled media material, it is same to be applicable in that dielectric fill material is made hollow cylinder
The internal structure that axis resonant cavity is made of internal and external conductor, and the interior lateral surface of the dielectric material in hollow cylinder adds electricity
Pole.Electrode forms the electric field of varying strength under different voltage, so as to fulfill the change of dielectric constant, and then realizes resonance
The adjustment of chamber resonant frequency.
Description of the drawings
Fig. 1 is the structure diagram of continuous automatically controlled resonator that the utility model embodiment provides；
Fig. 2 is the sectional view of continuous automatically controlled resonator that the utility model embodiment provides；
Fig. 3 is the structure diagram of control system that the utility model embodiment provides.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in mode is applied, the technical solution in the application embodiment is clearly and completely described, it is clear that described
Embodiment is only the embodiment of a part of embodiment of the application rather than whole.Based on the embodiment party in the application
Formula, all other embodiment that those of ordinary skill in the art are obtained without making creative work all should
When the range for belonging to the application protection.
Referring to Fig. 1, the utility model provides a kind of continuous automatically controlled resonator, the resonator is included by barium strontium titanate structure
Into cylinder, the direction of the cylinder along axial line offers cylindrical cavities, and the outside of the cylinder has first
Electrode 2 has second electrode 4 on the inner wall of the cylindrical cavities；Wherein, the first electrode 2 is in contact with outer conductor 1,
The second electrode 4 is in contact with center conductor 11；The first coupling ring 141 and the second coupling ring are additionally provided in the resonator
142, wherein, for inputting microwave signal into the resonator, second coupling ring is used for from institute first coupling ring
State output microwave signal in resonator.
Referring to Fig. 2, it in the present embodiment, is provided in the resonator perpendicular with the axial line of the resonator
Upper end cover 124, the center of the upper end cover 124 offers the through-hole for the center conductor 11 to be passed through；The upper end
First coupling ring 141 and second coupling ring 142 are connected by sub-miniature A connector 15 on lid 124.
In the present embodiment, the upper end of the center conductor 11 is connected by shaft coupling 22 with motor 21, the center
The lower end of the main body 111 of conductor 11 is in back taper 112, and probe 113, the spy are embedded in the lower end of the center conductor
113 lower section of needle is coupled with sample to be tested 31.In fig. 2, cavity wall 12 arrives the distance between axle center of center conductor 11 as b, in
The width of the main body 111 of heart conductor 11 is 2a, and the distance between the bottom end of center conductor 11 and upper end cover 124 are h.Resonator
Intracavitary 19 can fill barium strontium titanate.
Referring to Fig. 3, the application also provides a kind of control system, the control system includes Power Supply Assembly, amplifying circuit
And control panel, wherein：The Power Supply Assembly is connected with 220V AC powers, by the 220V AC powers be converted to 5V,
The DC output power of 15V and 200V；The control panel is connected with host computer, and the control issued with receiving the host computer refers to
It enables, and generates and the corresponding analog voltage of the control instruction；The control panel is also connected with the amplifying circuit, with to institute
It states amplifying circuit and the analog voltage is provided；The control panel is also connected with the Power Supply Assembly, to receive the Power Supply Assembly
5V the and 15V DC output powers of offer；The amplifying circuit is connected with the control panel, is sent with to receive the control panel
Analog voltage, and after the analog voltage is amplified, amplified voltage is supplied to the continuous automatically controlled resonator, with
Electric field is generated between the first electrode and second electrode of the continuous automatically controlled resonator；The amplifying circuit also with the power supply group
Part is connected, to receive the 200V DC output powers of the Power Supply Assembly.
In the present embodiment, the Power Supply Assembly includes the rectification circuit, filter circuit and voltage stabilizing being sequentially connected
Circuit, the rectification circuit are connected with the 220V AC powers, the output terminal of the regulator circuit provide 5V, 15V and
The DC output power of 200V.
In the present embodiment, the control panel includes central processing unit and digital analog converter, wherein, the centre
Reason device is connected with the host computer, to receive the control instruction that the host computer issues；The central processing unit and the digital-to-analogue
Converter is connected, to be sent and the corresponding digital signal of the control instruction, the digital signal to the digital analog converter
The analog voltage is converted to by the digital analog converter.
In the present embodiment, further include analog-digital converter in the control panel, the analog-digital converter respectively with it is described
The output terminal of amplifying circuit and the central processing unit are connected；The analog-digital converter is for the output to the amplifying circuit
Voltage is sampled, and sampled result is fed back to the central processing unit, so that number of the central processing unit to transmission
Word signal is modified.
In practical application scene, barium strontium titanate (BaxSr1-xTiO4) material had both had the Gao Jie of barium titanate (BaTiO3)
Electric constant and low dielectric loss, and there is strontium titanates (SrTiO3) stable structure, it is ideal higfh-tension ceramics electricity
Container material.The variation of its dielectric constant with temperature and electric field strength and change.The application be exactly apply its dielectric constant with
The enhancing of its suffered electric field strength and reduce this characteristic, adjust its dielectric constant by controlling its suffered electric field strength, into
And control the resonant frequency of resonator.
The designed resonator of the utility model shows its principle by taking the coaxial resonant cavity of 1/4 wavelength as an example.It is main
Including outer conductor, center conductor, coupling ring or coupling needle and dielectric material barium strontium titanate (BaxSr1-xTiO4).Wherein,
Barium strontium titanate medium material is processed to hollow cylinder, and in its interior lateral surface enclose electrode, can finally be put into humorous
It shakes between the internal and external conductor of chamber.Two coupling rings are installed on the top of cavity, are respectively used to micro- after the injection and conditioning of microwave
Wave exports
In the utility model, Power Supply Assembly is by the straight circuit rectifies circuit of alternation, filter circuit and regulator circuit group
Into defeated is 5V, 15V, 200V DC voltage, for chip power supply and provides voltage reference.Amplifying circuit is mainly to include line
Property amplification and power amplification two parts.Control panel mainly include central processing unit and the digital analog converter (DAC) of one 16 with
And two analog-digital converters (ADC) and peripheral circuit.Its operation principle is：Host computer sends control instruction to central processing unit
(required voltage value), control central processing unit send corresponding digital signal to DAC, and the mould of 1-5V is converted to through 16 DAC
Intend signal, analog signal amplifies 40 times by amplifying circuit so that driving power plate is straight to piezoelectric actuator output 0-200V's
Signal is flowed, because the electrode plate at barium strontium titanate medium both ends can form uniform electric field therebetween after being powered, by controlling the two poles of the earth
Between voltage so as to control the electric field strength at resonator barium strontium titanate medium both ends, so as to change dielectric constant, and then change
The resonant frequency of resonator.In order to ensure the accuracy of output voltage, analog-to-digital conversion need to be added in the voltage output end of amplifying circuit
Device, by output voltage sampling feedback to central processing unit, central processing unit can by Fuzzy-PID algorithms to output voltage into
Row is corrected.
Compared with prior art, the technical solution of the application includes advantages below：The utility model uses barium strontium titanate
(BaxSr1-xTiO4) as coaxial resonant cavity filled media material, it is same to be applicable in that dielectric fill material is made hollow cylinder
The internal structure that axis resonant cavity is made of internal and external conductor, and the interior lateral surface of the dielectric material in hollow cylinder adds electricity
Pole.Electrode forms the electric field of varying strength under different voltage, so as to fulfill the change of dielectric constant, and then realizes resonance
The adjustment of chamber resonant frequency.
Those skilled in the art are supplied to the purpose described to the description of the various embodiments of the application above.It is not
It is intended to exhaustive or is not intended to the utility model is limited to single disclosed embodiment.As described above, the application
Various replacements and variation will be apparent for above-mentioned technology one of ordinary skill in the art.Therefore, although having had
Body discusses some alternative embodiments, but other embodiment will be apparent or those skilled in the art
Relatively easily obtain.The application is intended to be included in all replacements, modification and variation of this utility model crossed by discussion,
And fall the other embodiment in the spirit and scope of above-mentioned application.
Claims (7)
1. a kind of continuous automatically controlled resonator, which is characterized in that the resonator includes the cylinder being made of barium strontium titanate, described
The direction of cylinder along axial line offers cylindrical cavities, and the outside of the cylinder is with first electrode, the cylinder
Has second electrode on the inner wall in cavity；Wherein, the first electrode is in contact with outer conductor, and the second electrode is led with center
Body is in contact；The first coupling ring and the second coupling ring are additionally provided in the resonator, wherein, first coupling ring be used for
Input microwave signal in the resonator, second coupling ring are used to export microwave signal out of described resonator.
2. continuous automatically controlled resonator according to claim 1, which is characterized in that be provided in the resonator with it is described humorous
Shake the perpendicular upper end cover of axial line of chamber, and the center of the upper end cover offers logical for the center conductor to be passed through
Hole；First coupling ring and second coupling ring are connected by sub-miniature A connector on the upper end cover.
3. continuous automatically controlled resonator according to claim 2, which is characterized in that the upper end of the center conductor passes through shaft coupling
Device is connected with motor, and the lower end of the center conductor is embedded with probe in back taper in the lower end of the center conductor, institute
It states and is coupled with sample to be tested below probe.
4. a kind of control system for being applied to continuous automatically controlled resonator as claimed any one in claims 1 to 3, feature exist
In, the control system includes Power Supply Assembly, amplifying circuit and control panel, wherein：
The Power Supply Assembly is connected with 220V AC powers, and the 220V AC powers are converted to 5V, 15V and 200V
DC output power；
The control panel is connected with host computer, to receive the control instruction that the host computer issues, and generates and refers to the control
Enable corresponding analog voltage；The control panel is also connected with the amplifying circuit, to provide the mould to the amplifying circuit
Intend voltage；The control panel is also connected with the Power Supply Assembly, to receive 5V the and 15V direct current outputs that the Power Supply Assembly provides
Power supply；
The amplifying circuit is connected with the control panel, to receive the analog voltage that the control panel is sent, and by the simulation
After voltage amplification, amplified voltage is supplied to the continuous automatically controlled resonator, in the continuous automatically controlled resonator
Electric field is generated between first electrode and second electrode；The amplifying circuit is also connected with the Power Supply Assembly, to receive the confession
The 200V DC output powers of electrical component.
5. control system according to claim 4, which is characterized in that the Power Supply Assembly includes the rectification being sequentially connected
Circuit, filter circuit and regulator circuit, the rectification circuit are connected with the 220V AC powers, the regulator circuit it is defeated
Outlet provides the DC output power of 5V, 15V and 200V.
6. control system according to claim 4, which is characterized in that the control panel includes central processing unit and digital-to-analogue
Converter, wherein, the central processing unit is connected with the host computer, to receive the control instruction that the host computer issues；Institute
Central processing unit is stated with the digital analog converter to be connected, it is corresponding with the control instruction to be sent to the digital analog converter
Digital signal, the digital signal are converted to the analog voltage by the digital analog converter.
7. control system according to claim 6, which is characterized in that analog-digital converter, institute are further included in the control panel
Analog-digital converter is stated respectively with the output terminal of the amplifying circuit and the central processing unit to be connected；The analog-digital converter is used
It is sampled in the output voltage to the amplifying circuit, and sampled result is fed back into the central processing unit, so that institute
Central processing unit is stated to be modified the digital signal of transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721312298.5U CN207517843U (en) | 2017-10-11 | 2017-10-11 | A kind of continuous automatically controlled resonator and its control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721312298.5U CN207517843U (en) | 2017-10-11 | 2017-10-11 | A kind of continuous automatically controlled resonator and its control system |
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| Publication Number | Publication Date |
|---|---|
| CN207517843U true CN207517843U (en) | 2018-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721312298.5U Active CN207517843U (en) | 2017-10-11 | 2017-10-11 | A kind of continuous automatically controlled resonator and its control system |
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| Country | Link |
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| CN (1) | CN207517843U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107732402A (en) * | 2017-10-11 | 2018-02-23 | 北京亦庄材料基因研究院有限公司 | A kind of continuous automatically controlled resonator and its control system |
| CN109917191A (en) * | 2019-02-18 | 2019-06-21 | 中电科仪器仪表有限公司 | A kind of fission resonant cavity coupling ring installation adjusting device |
-
2017
- 2017-10-11 CN CN201721312298.5U patent/CN207517843U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107732402A (en) * | 2017-10-11 | 2018-02-23 | 北京亦庄材料基因研究院有限公司 | A kind of continuous automatically controlled resonator and its control system |
| CN109917191A (en) * | 2019-02-18 | 2019-06-21 | 中电科仪器仪表有限公司 | A kind of fission resonant cavity coupling ring installation adjusting device |
| CN109917191B (en) * | 2019-02-18 | 2022-02-25 | 中电科思仪科技股份有限公司 | Installation and adjustment device for split resonant cavity coupling ring |
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