CN105911368B - A kind of hypersorption type micro-wave energy measuring apparatus - Google Patents
A kind of hypersorption type micro-wave energy measuring apparatus Download PDFInfo
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- CN105911368B CN105911368B CN201610470676.6A CN201610470676A CN105911368B CN 105911368 B CN105911368 B CN 105911368B CN 201610470676 A CN201610470676 A CN 201610470676A CN 105911368 B CN105911368 B CN 105911368B
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- absorber
- detector
- measuring apparatus
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- microwave
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/0864—Measuring electromagnetic field characteristics characterised by constructional or functional features
- G01R29/0871—Complete apparatus or systems; circuits, e.g. receivers or amplifiers
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The present invention provides a kind of hypersorption type micro-wave energy measuring apparatus.The absorbing liquid in absorber in the device absorbs microwave, and detector is connect with absorber；Transition connection section is connect with metal screen layer using flange disk-form, insulating layer is attached on metal screen layer, the input terminal of control system is connect with detector and temperature sensor, the output terminal of control system is connect with resistive heater and oscillograph, and control system carries out the analysis of signal, handles and exports.The present invention can carry out hypersorption, and have the characteristics that simple in structure, dependable performance, safe to use, applied widely to microwave.
Description
Technical field
The invention belongs to microwave testing fields, and in particular to a kind of microwave energy measuring device is used to implement microwave
The accurate measurement of energy.
Background technology
The advantages of energy parameter is an important parameter in microwave measurement, and microwave energy measures be and microwave frequency and pattern
It is unrelated, it is widely used in, in the measurement of the microwave energy of middle power, low-power, suitable for broadband, narrowband, the microwaves such as single mode, multimode
The measurement of energy.Microwave has the features such as peak power is high, and the burst length is short, and domestic correlation microwave study unit is all paid close attention to
The measurement of microwave power（Mainly there are online intracavitary coupled method and far-field radiation integration method）.With the development of microwave technology, peak
It is higher and higher to be worth power so that microwave power measurement difficulty increases.The measurement of microwave energy can realize the survey of microwave power indirectly
Amount, the problems that microwave power measurement can be avoided to bring, energy measurement are mutually authenticated with power measurement, are complementary to one another.
Microwave energy is measured mostly using load absorption formula, and according to measurement object feature, there are mainly two types of measurement methods, survey
It is slightly different to measure principle.It is a kind of that heat as the energy after the Absorption of Medium microwave such as absorbing load, water and is converted into using circulating water
Amount, by measuring the temperature difference and flow of Inlet and outlet water, obtains the size of energy, this method is mainly used for the system energy of continuous operation
Measurement, another way is that the microwave energy of absorption is converted into the variation that heat causes liquor capacity, by becoming to volume
The measurement of change determines the size of energy, is primarily adapted for use in the microwave source energy measurement to work in a pulsed fashion.
At present, it has been disclosed that the pulsed microwave energy gauge of report has some disadvantages, such as document《Heat insulation-type
Microwave pulse energy meter is studied》Measured using capacitance sensor, the range measured only has 100J, port reflectance factor compared with
Greatly 1.3；Document《The design and experiment of 3mm gyrotron energy meters》In energy gauge for space radiation it is absorption, two
The port reflectance factor of kind measuring system can impact measurement result.
Invention content
The technical problem to be solved in the present invention is to provide a kind of hypersorption type micro-wave energy measuring apparatus.
The hypersorption type micro-wave energy measuring apparatus of the present invention, including transition connection section, absorber, detector, stent, control
System processed, metal screen layer, absorbing liquid, resistive heater, temperature sensor, water inlet, water outlet, knob, insulating layer；It absorbs
Internal absorbing liquid absorbs microwave, absorbs the absorption body temperature raising after microwave, absorbing liquid volume expansion, with absorption
Liquid level raising in the detector that body is connected directly, control system carry out processing analysis to the signal of detector；The device
It being placed on stent, the transition connection section is connect with metal screen layer using flange disk-form, and flange screw passes through absorber,
Transition connection section, absorber and metal screen layer, the insulating layer are compressed by screw to be attached on metal screen layer, the suction
It receives liquid and is injected by being located at the water inlet right over absorber, come down in torrents by being located at the water outlet immediately below absorber, the detector
Positioned at the side of absorber, and the angle of inclination of holding and level, between 10 ° to 20 °, the resistive heater and temperature pass
Sensor is fixed on the inside of absorber, by metal screw draw four connectors to insulating layer outside, the control system it is defeated
Enter end to connect with detector and temperature sensor, the output terminal of the control system is connect with resistive heater and oscillograph, control
System processed carries out the analysis of signal, handles and exports.
The transition connection section is the conical grading structure of two-stage, and two end faces of transition connection section are with sealing
The ring flange of structure.
The material of the absorber is polytetrafluoroethylene (PTFE), and has the absorbing surface of two-sided ripple shape.
The detector is the resistance type sensor of coaxial configuration, and the internal and external conductor of stainless steel is resistor respectively
Two electrodes, absorbing liquid are filled between inside and outside metallic conductor, and coaxial outer conductor is connect with metal screen layer.
The absorbing liquid is ethyl alcohol, deionized water and salicylic acid by the mixed liquor of composition.
The present invention can reduce the electric field strength in transmission line using the structure of transition connection section, while be effectively improved and can measure
Measure the port reflection of device；The ripple absorbing surface of absorbing cavity can effectively reduce the reflection to microwave, improve the absorption effect of microwave
Rate；Double absorption can be carried out to microwave using metal screen layer, prevent microwave from leakage from achieving the effect that hypersorption；Energy measurement fills
Environment temperature can be eliminated higher than 3 DEG C of environment temperature or more, while using steady state measurement mode by putting the preheated rear body temperature that absorbs
Change the influence to measurement result；Energy measuring apparatus is calibrated to obtain voltage-energy of measuring device using standard microwave
Calibration curve according to the voltage value combination calibration curve measured obtains being tested microwave energy big when measuring tested microwave source
It is small, influence of the energy measuring apparatus port reflectance factor to measurement result can be eliminated using which.The present invention can be right
Microwave carries out hypersorption, and has simple in structure, dependable performance, safe to use, applied widely, broad quantum, can eliminate end
The advantages that oral reflex index impacts.
Description of the drawings
Fig. 1 is the general structure schematic diagram of the present invention；
Fig. 2 is the internal structure schematic diagram of the present invention；
Fig. 3 is the ripple absorbing surface of the present invention；
Fig. 4 is the absorber inner structure figure in the present invention；
Fig. 5 is the panel detector structure figure in the present invention；
Fig. 6 is the voltage tester figure of the present invention；
Fig. 7 is voltage-energy calibration curve of the present invention；
In figure：1. 5. control system of transition connection section 2. absorber, 3. detector, 4. stent, 6. metal screen layer 7.
10. water inlet of absorbing liquid 8. resistive heater, 9. temperature sensor, 11. water outlet 12., 13. insulating layers 14. of knob are poly-
18. ring flange of tetrafluoroethene foreboard 15. polytetrafluoroethylene (PTFE) back plate, 16. sealing ring, 17. waveguide mouth, 19. detector outer conductor
20. 21. detector water outlet of detector inner wire, 22. oscillograph.
Specific embodiment
The hypersorption type micro-wave energy measuring apparatus of the present invention, including transition connection section, absorber, detector and control system
System.Microwave source reaches the absorbing surface of absorber by the transition connecting structure of energy measuring apparatus, and absorber is inhaled after absorbing microwave
Temperature in acceptor increases, the absorbing liquid volume expansion in absorber, the liquid level in detector being connected directly with absorbing cavity
Raising, control system carry out processing analysis to the signal of detector, so as to obtain tested microwave source energy size.
Transition connection section is connect with metal screen layer using flange disk-form, and flange screw passes through absorber, passes through spiral shell
Silk compresses transition connection section, absorber and metal screen layer, while insulating layer is attached on metal screen layer；Absorbing liquid is by being located at
Water inlet injection right over absorber, is come down in torrents by being located at the water outlet immediately below absorber；Detector is located at the side of absorber
Side, and the angle of inclination of holding and level is between 10 ° to 20 °；Resistive heater and temperature sensor are fixed on absorber
Inside is drawn by metal screw outside four connectors to insulating layer；The input terminal of control system and detector and temperature sensing
Device connects, and the output terminal of control system connect with resistive heater and oscillograph, the analysis of control system progress signal, handle and
Output.
The transition connection section is made of two-stage cone grading structure, two end face is the method with sealing structure
Blue disk, the input terminal of transition connection section are connect with tested microwave source, and rear end face is connect with wrapping up the metal screen layer of absorber.
The material of the absorber is polytetrafluoroethylene (PTFE), there is the absorbing surface of two-sided ripple structure.
The detector is stainless steel, coaxial configuration resistance type sensor, and coaxial inner and outer conductor is resistance respectively
Two electrodes of device absorb liquid and are filled between inside and outside metallic conductor, and fluid change causes resistance change.
The absorbing liquid is ethyl alcohol, deionized water and salicylic acid by the mixed liquor of composition.
Fig. 1 is the general structure schematic diagram of the present invention.The present invention is connect when in use with tested microwave source or microwave source, is controlled
The input terminal of system 5 processed is connect with detector 3 and temperature sensor 9, the output terminal of control system 5 and resistive heater 8 and is shown
Wave device 22 connects, and adjusts standby voltage and preheating time, the preheating of finishing device, regulation and control system enter stable state, reach steady
Determine 22 voltage value stabilization of oscillograph during state, microwave measurement can be carried out at this time.After measuring device absorbs microwave, in detector 3
Liquid level increases, in detector 3 variation of liquid level gone out on oscillograph 22 with the reacting condition of voltage value after the processing of control system 5
Come, oscillograph voltage change curve is as shown in Figure 6 before and after measurement.
Fig. 2 is the internal structure schematic diagram of the present invention.Fig. 3 is the ripple absorbing surface of the present invention.Fig. 4 is the suction in the present invention
Acceptor inner structure figure.Fig. 5 is the panel detector structure figure in the present invention.
In Fig. 2 ~ 5, transition connection section 1 is connect with metal screen layer 6 using flange disk-form, and flange screw, which passes through, to be absorbed
Body 2, by screw compress transition connection section 1, absorber 2 polytetrafluoroethylene (PTFE) foreboard 14 and polytetrafluoroethylene (PTFE) back plate 15 and
Metal screen layer 6, insulating layer 13 are attached on metal screen layer 6.Absorbing liquid 7 is by being located at the water inlet 10 right over absorber 2
Injection is come down in torrents by being located at the water outlet 11 immediately below absorber 2.Detector 3 is located at the side of absorber 2, and keeps and level
Angle of inclination between 10 ° to 20 °, detector 3 be coaxial configuration resistance type sensor.
The detector outer conductor 19 and detector inner wire 20 of stainless steel are two electrodes of resistor respectively, are absorbed
Liquid 7 is filled between inside and outside metallic conductor, and 19 body of outer conductor of detector is connect with metal screen layer 6.Resistive heater 8 and temperature
Degree sensor 9 is fixed on the inside of absorber 2, is drawn outside four connectors to insulating layer 13 by metal screw.
Energy measuring apparatus needs first to be demarcated to obtain with standard microwave source before tested microwave source is measured
Corresponding voltage-energy calibration curve, exemplary voltages-energy calibration curve are as shown in Figure 7.When energy meter to tested microwave source or
When microwave source measures, the size of tested energy is obtained according to the voltage value combination voltage-energy calibration curve measured, is utilized
The present invention energy measuring apparatus measure the specific steps are：
Step 1：The preheating of energy measuring apparatus.Open the water inlet of energy measuring apparatus, the heating of regulation and control system
Voltage, the initial temperature T of recording device absorber0, preheating time is controlled, device is preheated.
Step 2：Energy measuring apparatus enters stable state.After the completion of preheating, water inlet is closed, opens the venthole of detector,
Control system adjusts measuring device and slowly enters stable state, when reaching stable state, the liquid level of energy measuring apparatus detector
Stablize, i.e. oscillograph output voltage U0Stablize, record the steady temperature T of energy meter at this time1, ensure steady temperature T1Higher than initial
Temperature T03 DEG C or more.
Step 3：Using voltage-energy calibration curve of standard microwave source calibration energy measuring apparatus.At steady state,
Energy meter is calibrated in standard microwave source, to obtain voltage-energy calibration curve.Standard microwave source connects with energy measuring apparatus
After connecing, the output power of adjustment criteria microwave source and burst length, standard microwave source exported certain energy to obtain standard energy
Signal after, in detector liquid level increase, oscillograph output voltage values increase therewith, when oscillograph output valve reaches maximum value
UmaxAfterwards, it is slowly fallen after rise after the holding short period and is again introduced into stable state, it is U this time to measure voltage changeJ=Umax-U0.According to
Secondary adjustment criteria microwave source output power and burst length, the voltage of energy measuring apparatus when obtaining different size of standard energy
Output valve obtains voltage-energy calibration curve of energy measuring apparatus.
Step 4：Energy measuring apparatus measures tested microwave signal.At steady state, energy measuring apparatus pair
Tested microwave source or microwave source measure.After tested microwave source output signal, oscillograph output voltage is obtained according to step 3
Changing value Um, tested energy Q is obtained according to voltage-energy calibration curvem。
Claims (5)
1. a kind of hypersorption type micro-wave energy measuring apparatus, it is characterised in that：The device includes transition connection section（1）, inhale
Acceptor（2）, detector（3）, control system（5）, metal screen layer（6）, absorbing liquid（7）, resistive heater（8）, temperature sensing
Device（9）, water inlet（10）, water outlet（11）, knob（12）, insulating layer（13）；Absorber（2）Interior absorbing liquid carries out microwave
It absorbs, absorbs the absorber after microwave（2）Interior temperature raising, absorbing liquid（7）Volume expansion, with absorber（2）It is connected directly
Detector（3）Interior liquid level raising, control system（5）To detector（3）Signal carry out processing analysis；The device is placed in
Stent（4）On, the transition connection section（1）With metal screen layer（6）Using ring flange（18）Connection, flange screw, which passes through, to be inhaled
Acceptor（2）, transition connection section is compressed by screw（1）, absorber（2）And metal screen layer（6）, the insulating layer（13）It attaches
In metal screen layer（6）On, the absorbing liquid（7）By being located at absorber（2）The water inlet of surface（10）Injection is inhaled by being located at
Acceptor（2）The water outlet of underface（11）It comes down in torrents, the detector（3）Positioned at absorber（2）Side, and keep with it is horizontal
Angle of inclination is between 10 ° to 20 °, the resistive heater（8）And temperature sensor（9）It is fixed on absorber（2）Inside,
Four connectors are drawn to insulating layer by metal screw（13）Outside, the control system（5）Input terminal and detector（3）And
Temperature sensor（9）Connection, the control system（5）Output terminal respectively with resistive heater（8）, oscillograph（22）Connection,
Control system（5）It carries out the analysis of signal, handle and export.
2. hypersorption type micro-wave energy measuring apparatus according to claim 1, it is characterised in that：The transition connection section
（1）For the conical grading structure of two-stage, transition connection section（1）Two end faces be the ring flange with sealing structure.
3. hypersorption type micro-wave energy measuring apparatus according to claim 1, it is characterised in that：The absorber（2）'s
Material is polytetrafluoroethylene (PTFE), and the absorbing surface with two-sided ripple shape.
4. hypersorption type micro-wave energy measuring apparatus according to claim 1, it is characterised in that：The detector（3）For
The resistance type sensor of coaxial configuration, the internal and external conductor of stainless steel are two electrodes of resistor respectively, absorbing liquid（7）It fills out
It fills between inside and outside metallic conductor, coaxial outer conductor and metal screen layer（6）Connection.
5. hypersorption type micro-wave energy measuring apparatus according to claim 1, it is characterised in that：The absorbing liquid（7）For
The mixed liquor being made of ethyl alcohol, deionized water and salicylic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610470676.6A CN105911368B (en) | 2016-06-24 | 2016-06-24 | A kind of hypersorption type micro-wave energy measuring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610470676.6A CN105911368B (en) | 2016-06-24 | 2016-06-24 | A kind of hypersorption type micro-wave energy measuring apparatus |
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| Publication Number | Publication Date |
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| CN105911368A CN105911368A (en) | 2016-08-31 |
| CN105911368B true CN105911368B (en) | 2018-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610470676.6A Expired - Fee Related CN105911368B (en) | 2016-06-24 | 2016-06-24 | A kind of hypersorption type micro-wave energy measuring apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112444682A (en) * | 2019-09-05 | 2021-03-05 | 北京华航无线电测量研究所 | Microwave coupler for measuring NV color center microwave magnetic field of diamond |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5015943A (en) * | 1989-05-22 | 1991-05-14 | The United States Of America As Represented By The Secretary Of The Navy | High power, high sensitivity microwave calorimeter |
| US5186540A (en) * | 1991-12-30 | 1993-02-16 | Raytheon Company | Power measurement calorimeter |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05273273A (en) * | 1992-03-26 | 1993-10-22 | Mitsubishi Materials Corp | Microwave sensor |
| WO2008074799A1 (en) * | 2006-12-21 | 2008-06-26 | Biotage Ab | Reaction vessel for a microwave heating system |
-
2016
- 2016-06-24 CN CN201610470676.6A patent/CN105911368B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5015943A (en) * | 1989-05-22 | 1991-05-14 | The United States Of America As Represented By The Secretary Of The Navy | High power, high sensitivity microwave calorimeter |
| US5186540A (en) * | 1991-12-30 | 1993-02-16 | Raytheon Company | Power measurement calorimeter |
Non-Patent Citations (3)
| Title |
|---|
| "A Calorimeter with a Capacitive Probe for Measuring Microwave Energy";V. A. Kiselev 等;《ELECTRONICS AND RADIO ENGINEERING》;20050227;全文 * |
| "HL-2A装置ECRH系统的微波功率测量";陆志鸿等;《核聚变与等离子体物理》;20080331;第28卷(第1期);全文 * |
| "Liquid calorimeters for measuring the energy of high-power microwave pulses";Anton A. Elchaninov 等;《Instruments and Experimental Techniques》;20150630;全文 * |
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Granted publication date: 20180703 |