CN107315018A - A kind of microwave leakage can method moisture detector - Google Patents
A kind of microwave leakage can method moisture detector Download PDFInfo
- Publication number
- CN107315018A CN107315018A CN201710670870.3A CN201710670870A CN107315018A CN 107315018 A CN107315018 A CN 107315018A CN 201710670870 A CN201710670870 A CN 201710670870A CN 107315018 A CN107315018 A CN 107315018A
- Authority
- CN
- China
- Prior art keywords
- microwave
- test chamber
- chamber
- sample
- fomento
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N22/00—Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more
- G01N22/04—Investigating moisture content
Abstract
The invention belongs to a kind of microwave leakage energy method moisture detector, including sensing chamber and with sensing chamber, the microwave generating assembly together with is set, the sensing chamber includes test chamber, the test chamber is hollow structure, its side is hinged with sample Fomento, detection box is fixed with the sample Fomento, induction cavity is provided with above the test chamber, Microwave emission chamber is provided with below the test chamber, the A/D conversion chambers being also correspondingly arranged above the induction cavity, provided with induction coil and the neon lamp being connected with the induction coil in the induction cavity, the A/D conversions intracavitary is provided with the detector for being used for detecting neon lamp intensity of illumination；The microwave generating apparatus component includes microwave generator, the waveguide together with is set with the microwave generator, the microwave antenna together with is set with the waveguide, the microwave antenna is fixed on the Microwave emission intracavitary, and the direction of the launch of the microwave antenna is corresponding towards the test chamber.
Description
Technical field
The invention belongs to coal detection technique apparatus field.Being leaked more particularly, to a kind of microwave can method moisture detector.
Background technology
In coal, moisture is to be easiest to one of composition of change, but is one of important index of ature of coal, to coal trade
Easily, transport and processing and utilization all have a major impact.In coal foreign trade, net calorific value as received basis is main clearing
Foundation, moisture increase can reduce the combustible component in coal, cause low heat valve to reduce, and under normal conditions, often increase in coal
Plus l% moisture, the caloric value of coal can reduce 250.29kJ/kg, and the caloric value of coal is bigger, influence of the moisture to low heat valve
Also it is bigger, therefore moisture in coal change directly affects the economic interests of both sides of supply and demand.When boiler of power plant burns, moisture in coal exists
In-furnace temperature is absorbed during heating evaporation declines furnace temperature, postpones the ignition time of coal, influences flame holding, boiler is pacified
Row for the national games is unfavorable, moisture increase, coal dust imperfect combustion, increases incomplete combustion loss, and exhaust smoke level increase, heat loss due to exhaust gas increases
Plus, cause boiler efficiency to decline, while adding waste gas, useless solid discharge capacity.In recent years, the haze in Beijing-tianjin-hebei Region winter
Weather is frequent, coal fire discharged waste gas, useless intrinsic pass when very big reason is with warming.Therefore, moisture in coal detection is one
Basic but highly important project, but because process detects the demand with process control development, traditional offline coal water
Oneself can not meet production process requirement for point detection method, and highly desirable produce can accurate, quick, on-line checking moisture in coal
Equipment.
At present, the method for coal sample moisture content content being detected in laboratory is oven drying method, it is necessary to crush coal particle to 200-300
After mesh, sampling is weighed, and is dried 60-120 minutes, is re-weighed, and is calculated loss of moist amount, is calculated water content.Therefore deposit in an experiment
In some shortcomings：1. manual measurement labor intensity is big, causes human error influence larger；2. sample representation is difficult to ensure that, work
Coal flow in industry production process is big, and the quantity per sub-sampling is very limited, so that actual sample representation is poor；
3. the operation cycle is long, as a result delayed, it is impossible to progress materials quality on-line monitoring synchronous with production.
Two major classes can be divided to according to principle by being used for the method for measurement of species moisture in domestic and international practical operation：Heat drying
Method, microwave transmission method.Hot oven drying method includes microwave heating method, infrared heating method；Microwave transmission method includes microwave attenuation, microwave
Dielectric constant (electric capacity) method, microwave resonance cell method, its feature, the scope of application, measurement accuracy etc. are different.
(1) infrared heating and drying
Infrared heating and drying principle is that have strong absorption band to the infra-red radiation of specific wavelength using moisture, when infrared
When the proper motion frequency of the fundamental particle of radiation frequency and heated material matches, radiation energy can be absorbed well and produced
Strong resonance, material is brought rapidly up, and object is reached the purpose that rapid and uniform heating is dried.Be characterized in not with tested material
Contact, full accuracy is up to 0.1%, and the influence of temperature of charge and density to measurement result is small, but the method only belongs to surface measurement
Technology, it is difficult to reflect the volume moisture (internal moisture) of whole material.
(2) micro-wave drying method
Micro-wave drying method is that hydrone changes and vibration at high speed with microwave electric field direction, and the frequency of alternating electric field is got over
Height, the polarization that polar molecule is turned to repeatedly is also faster, and the rubbing action between the warm-up movement of molecule and adjacent molecule is more violent,
Electromagnetic energy is completed to hot transformation of energy, moisture evaporates rapidly.The method feature penetration capacity is strong, uniform drying rapid, with choosing
Selecting property, but instrument is combined microwave drying technology with electronic balance quality weighing technology, by sampling, weighing, dry, claim again
Weight, completes detection, and this process operation time is long, as a result delayed, especially requires quick detection moisture, adjusts water content rapidly
Production process, it is impossible to realize real time on-line monitoring.
(3) microwave attenuation (capacitance method)
Microwave attenuation is that the dielectric constant based on water is more much greater than the dielectric constant of usual dielectric material, therefore, i.e.,
Free water content in material there are minor variations, also result in dielectric material characteristic and change, react very sensitive, but it is smart
Degree is relatively low, and only 1%., and dielectric constant by temperature, material density, material purity, detected material and detection sensor away from
From interference.The current foreign countries' product of (Britain, Germany) based on this detection method is a lot, but with the presence of above-mentioned puzzlement problem.
(4) microwave reflection
Microwave reflection is closed according to the nonlinear function between microwave reflection parameter such as phase shift, attenuation and material moisture
System, determines moisture content of material, detection speed is fast, sensitivity by measuring the shifting of the microwave phase after reflective material and attenuation
It is high, it is not necessary to contact measured object, belong to Non-Destructive Testing, not examined distance influence, but by material density, material purity, temperature
Influence.
(5) microwave resonance cell method
Microwave resonance cell method determines material water ratio by measuring the quality factor of the skew resonant cavity of resonant frequency.Should
The resolving power and measurement accuracy of method are higher.Density can be eliminated to measurement knot by calculating the ratio of dielectric constant and decay factor
The influence of fruit, so as to realize and density independent microwave cavity moisture measurement.But, electric field is to oxonium ion, hydrogen in hydrone
The positive and negative conversion influence resonant frequency of ion, feed purity impurity can also interfere with resonant frequency, so as to can also influence accuracy of detection.
In actually detected, the product of same water content is detected, due to being detected the material density, material purity, detecting distance of sample
Minor variations, can all disturb dielectric constant, disturb resonant frequency, resultant interference water content testing result.Detected during practical application
Precision is relatively low, general precision is no more than 1% occasion, and the instrument detected using these principles, calibrates very frequent.
The content of the invention
In order to make up the above-mentioned defect for coal context of detection, the present invention proposes that a kind of microwave leakage can method water content detection
Instrument.
Its technical scheme is, a kind of microwave leakage can method moisture detector, including sensing chamber and set with sensing chamber together with
Microwave generating assembly, the sensing chamber include test chamber, the test chamber be hollow structure, its side be hinged with sample door
It is fixed with support, the sample Fomento above detection box, the test chamber and is provided with induction cavity, microwave is provided with below the test chamber
In the A/D conversion chambers being also correspondingly arranged above emission cavity, the induction cavity, the induction cavity provided with induction coil and with the sense
The neon lamp for answering coil to connect, the A/D conversions intracavitary is provided with the detector for being used for detecting neon lamp intensity of illumination；The microwave occurs
Device assembly includes microwave generator, and the waveguide together with is set with the microwave generator, sets and arrives with the waveguide
Microwave antenna together, the microwave antenna is fixed on the Microwave emission intracavitary, and the direction of the launch pair of the microwave antenna
Should be towards the test chamber.
The test chamber is also hinged with correction Fomento, the correction Fomento and is fixed with check box.
Also include touch-screen and the controller electrically connected with the touch-screen, the controller has also been electrically connected detection
Device and microwave generator.
Temp probe is further fixed in the detection box, the temp probe electrically connects controller.
Also include balance of weighing, the balance of weighing is electrically connected with the controller.
In the present invention, microwave leakage energy method uses the microwave of some strength, neon lamp can be made to light, luminous brightness and microwave is strong
Degree is related.Such as microwave transparent contains the coal dust of certain moisture, and microwave energy intensity can be by the hydrone high speed vibration in coal dust
Rub and be consumed, change of moisture content causes the microwave intensity for leaking through coal dust while changing, while so that neon tube luminous is bright
Degree also changes, and by detecting the change of luminous intensity, measures the change for leaking through coal dust microwave energy, counter push away detects coal dust
The size of middle moisture content value.
Concrete operations of the present invention are as follows：The stable 2.4GHz microwave signals of microwave generator emissive porwer, the frequency it is micro-
Ripple is the frequency for being easiest to be only absorbed by the water.Introduced by waveguide and transmitting antenna is installed in emission cavity, emission cavity, pass through emission cavity
Docked with test chamber, the test chamber equipped with detected sample is passed through the purpose is to the microwave gross area for sending transmitting antenna.
Test chamber designs and produces guarantee and microwave is not reflected, not revealed.The detection mouth both sides of test chamber are equipped with two half-open rotations
Fomento is sample Fomento and calibration Fomento respectively.Be loaded measuring box on sample Fomento.Be loaded check box on calibration Fomento.Work as closing
During sample door, measuring box is admitted to test chamber.Similarly, when not closing sample Fomento and closing calibration Fomento, calibration box is admitted to
Test chamber.Test chamber connects transducing chamber.Transducing chamber connection A/D conversion chambers.Microwave signal enters test chamber, through measuring box or school
Test sample hydrone high vibration triboabsorption in box, box and consume a certain amount of microwave so that the energy of microwave transparent sample
Intensity decays, and energy and the moisture size of microwave transparent produce inverse proportion change, and the microwave signal of strength retrogression is entered
Enter transducing chamber, transducing chamber is equipped with neon bulb, the energy signal of microwave leakage, which is converted into light intensity signal, i.e. neon bulb, produces light and shade change
Change, chamber is changed by A/D, controller is sent into after light intensity signal is converted into the digital electric signal that controller can be recognized, enters
Row touch-screen is shown, computing, storage etc..
Temp probe is arranged on measuring box.Measure measuring box internal temperature, for the aqueous accuracy of measurement of compensation adjustment, be because
Sample moisture content can be reduced for the interference of temperature.
Balance of weighing is arranged on the shell of microwave generating assembly, the gravimetric value of sample measuring box can be weighed, for mending
The aqueous accuracy of measurement of adjustment is repaid, is because the interference of density reduces sample moisture content
The data store internal of touch-screen and controller has been stored in the computational methods of material water ratio, correction function, school
Quasi- data.Different sample type correspondence different water cut fair curves, unlike material sample correspond to different call numbers, adjust
With the calculation procedure of different numberings, the height after the water content curve map for correcting different samples and compensation composite calulation can be calculated
Precision water content result, and shown by touch-screen.
Therefore, microwave leakage energy method moisture on-line fast detector shows its advantage:
1st, energy principle detection speed is leaked soon using microwave transparent, realizes On-line sampling system, it is per minute to be not less than 10 times.
2nd, using leakage can through principle it is less demanding to sample detection distance, the not examined distance of testing result do
Disturb.
3rd, standard sample water content Data duplication high speed acquisition is demarcated by rotating check box, to actual measurement sample moisture content
Zero point is corrected in real time so that material purity disturbs very little.
4th, the temperature acquisition amendment to sample is passed through so that water content result of calculation is not affected by temperature.
5th, to example weight random measurement, isometric standard specimen box measurement is used in combination so that water content result of calculation
Not by Effects of Density.
The invention carries out moisture to production process and quickly regulated and controled, and the raising to product quality, detection efficiency is very bright
It is aobvious.Device structure is simple, safe and reliable, cost is low.With reference to artificial intelligence computer amendment computing, optimum results, moisture is calculated
Content is more accurate, and uniformity is more preferable.Lightweight, integrated design, using temperature-compensating, detection process is to field condition, such as sample
Product temperature degree, purity, density, the adaptability such as detecting distance are stronger.
Brief description of the drawings
Fig. 1 is the structural representation of one embodiment of the present invention；
Fig. 2 is A-A positions section view schematic top plan view of the present invention；
Fig. 3 is the schematic side view of one embodiment of the present invention.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than indicate or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
With reference to Fig. 1, one embodiment of the present invention.
A kind of leakage of microwave can method moisture detector, including sensing chamber and the microwave generating assembly together with is set with sensing chamber
16, the sensing chamber includes test chamber 5, and the test chamber is hollow structure, and its side is hinged with sample Fomento 6, the sample
It is fixed with Fomento above detection box 13, the test chamber and is provided with induction cavity 8, Microwave emission chamber 3 is provided with below the test chamber,
In the A/D conversion chambers 9 being also correspondingly arranged above the induction cavity, the induction cavity provided with induction coil and with the induction coil
The neon lamp 17 of connection, the A/D conversions intracavitary is provided with the detector for being used for detecting neon lamp intensity of illumination；The microwave generating apparatus
Component includes microwave generator 1, and the waveguide 2 together with is set with the microwave generator, is set with the waveguide to one
The microwave antenna 4 risen, the microwave antenna is fixed on the Microwave emission intracavitary, and the direction of the launch correspondence of the microwave antenna
Towards the test chamber.
The test chamber is also hinged with correction Fomento 7, the correction Fomento and is fixed with check box 12.
Also include touch-screen 14 and the controller 15 electrically connected with the touch-screen, the controller has also been electrically connected
Detector and microwave generator.
Temp probe 10 is further fixed in the detection box, the temp probe electrically connects controller.
Also include balance 11 of weighing, the balance of weighing is electrically connected with the controller.
The equipment concrete operations：The stable 2.4GHz microwave signals of the emissive porwer of microwave source 1, the microwave of the frequency is most to hold
The frequency being easily only absorbed by the water.Emission cavity 3 is introduced by waveguide 2, transmitting antenna 4 is installed in emission cavity 3, by emission cavity 3 with
Test chamber 5 is docked, and the purpose is to the microwave gross area that transmitting antenna is sent is passed through the test chamber 5 equipped with detected sample.
Test chamber 5 designs and produces guarantee and microwave is not reflected, not revealed.The detection mouth both sides of test chamber 5 are equipped with two half-open rotations
Revolving door support is sample Fomento 6 and calibration Fomento 7 respectively.Be loaded measuring box 13 on sample Fomento 6.Be loaded verification on calibration Fomento 7
Box 12.When closing sample Fomento 6, measuring box 13 is admitted to test chamber 5.Similarly, sample Fomento 6 is not closed and closes calibration door
During support 7, calibration box 12 is admitted to test chamber 5.The connection transducing of test chamber 5 chamber 8.The connection A/D conversion chambers 9 of transducing chamber 8.Microwave signal
Into test chamber 5, through measuring box 13 or check box 12, sample hydrone high vibration triboabsorption consumes a certain amount of in box
Microwave so that the energy intensity of microwave transparent sample is decayed, and the energy of microwave transparent produces anti-with moisture size
Ratio changes, and the microwave signal of strength retrogression enters transducing chamber 8, and transducing chamber 8 is equipped with neon bulb 17, the energy signal of microwave leakage
It is converted into light intensity signal, i.e. neon bulb 17 and produces light and shade change, chamber 9 is changed by A/D, light intensity signal is converted into controller
Controller 15 is sent into after the digital electric signal that can be recognized, carry out touch-screen 14 show, computing, storage etc..
Temp probe 10 is arranged on measuring box 13.The internal temperature of measuring box 13 is measured, for compensation adjustment water content essence
Degree, is because the interference of temperature can reduce sample moisture content.
Balance 11 of weighing is arranged on the shell of microwave generating assembly 16, can weigh the gravimetric value of sample measuring box 13,
It is because the interference of density reduces sample moisture content for the aqueous accuracy of measurement of compensation adjustment
The data store internal of touch-screen 14 and controller 15 has been stored in the computational methods of material water ratio, corrects letter
Number, calibration data.Different sample types correspondence different water cut fair curves, unlike material sample correspond to different call volume
Number, the calculation procedure of different numberings is called, the water content curve map for correcting different samples and compensation composite calulation can be calculated
High-precision water content result afterwards, and shown by touch-screen 14.
Therefore, microwave leakage energy method moisture on-line fast detector shows its advantage:
1st, energy principle detection speed is leaked soon using microwave transparent, realizes On-line sampling system, it is per minute to be not less than 10 times.
2nd, using leakage can through principle it is less demanding to sample detection distance, the not examined distance of testing result do
Disturb.
3rd, standard sample water content Data duplication high speed acquisition is demarcated by rotating check box, to actual measurement sample moisture content
Zero point is corrected in real time so that material purity disturbs very little.
4th, the temperature acquisition amendment to sample is passed through so that water content result of calculation is not affected by temperature.
5th, to example weight random measurement, isometric standard specimen box measurement is used in combination so that water content result of calculation
Not by Effects of Density.
The invention carries out moisture to production process and quickly regulated and controled, and the raising to product quality, detection efficiency is very bright
It is aobvious.Device structure is simple, safe and reliable, cost is low.With reference to artificial intelligence computer amendment computing, optimum results, moisture is calculated
Content is more accurate, and uniformity is more preferable.Lightweight, integrated design, using temperature-compensating, detection process is to field condition, such as sample
Product temperature degree, purity, density, the adaptability such as detecting distance are stronger.The technology of the present invention is realized：1st, meticulous coal sample need not be crushed, is reduced
Labor intensity, reduction laboratory environment pollution.Due to the high-penetration characteristic of microwave, bulky grain coal sample direct measurement does not influence detection
As a result.2nd, sample moisture content is measured, only needs to can be obtained by water content between folding measuring box instant, without long-time baking coal
Sample is that can obtain moisture content value, is truly realized and completes within several seconds a moisture test, especially to hundreds of daily
Coal sample is measured, and greatly improves operating efficiency.3rd, temperature-compensating, it is right under density, temperature fluctuation condition that weight density compensation overcomes
The interference of precision, makes aqueous accuracy of measurement reach 0.1%, and this point is greatly improved than the precision of present market microwave detection method 1%, with
Microwave, infrared drying method moisture measurement precision are suitable.4th, overall process human intervention is few, operation interface hommization for detection, even if non-
Professional is also operable, reduces technical staff's consumption.5th, detection time is fast, and realization is analyzed water content in real time, detects
As a result on-line synchronous is generated, for production enterprise, and Instructing manufacture adjusts water content without delayed detuning phenomena.6th, the machine carries school
Box is tested, possesses high speed calibration function so that detection sample moisture content data calibration is quick, and uniformity is good, more reliable and more stable.
Above-mentioned technical proposal only embodies the optimal technical scheme of technical solution of the present invention, those skilled in the art
Some of which part may be made some variation embodies the present invention principle, belong to protection scope of the present invention it
It is interior.
Claims (5)
1. a kind of microwave leakage energy method moisture detector, it is characterised in that set micro- together with including sensing chamber and with sensing chamber
Ripple generating assembly (16), the sensing chamber includes test chamber (5), and the test chamber is hollow structure, and its side is hinged with sample
It is fixed with Fomento (6), the sample Fomento above detection box (13), the test chamber and is provided with induction cavity (8), the test chamber
Lower section is provided with the A/D conversion chambers (9) being also correspondingly arranged above Microwave emission chamber (3), the induction cavity, the induction cavity and is provided with
Induction coil and the neon lamp (17) being connected with the induction coil, the A/D conversions intracavitary, which is provided with, to be used to detect that neon lamp illumination is strong
The detector of degree；The microwave generating apparatus component includes microwave generator (1), is set with the microwave generator together with
Waveguide (2), the microwave antenna (4) together with is set with the waveguide, and the microwave antenna is fixed on the Microwave emission
Intracavitary, and the direction of the launch of the microwave antenna is corresponding towards the test chamber.
2. microwave leakage energy method moisture detector according to claim 1, it is characterised in that the test chamber is also hinged with school
Check box (12) is fixed with positive Fomento (7), the correction Fomento.
3. microwave according to claim 2 leakage can method moisture detector, it is characterised in that also including touch-screen (14) and with
The controller (15) of the touch-screen electrical connection, the controller has also been electrically connected detector and microwave generator.
4. microwave leakage energy method moisture detector according to claim 3, it is characterised in that be further fixed in the detection box
Temp probe (10), the temp probe electrically connects controller.
5. microwave leakage energy method moisture detector according to claim 4, it is characterised in that also including balance of weighing (11),
The balance of weighing is electrically connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710670870.3A CN107315018B (en) | 2017-08-08 | 2017-08-08 | Moisture detector by microwave energy leakage method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710670870.3A CN107315018B (en) | 2017-08-08 | 2017-08-08 | Moisture detector by microwave energy leakage method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107315018A true CN107315018A (en) | 2017-11-03 |
| CN107315018B CN107315018B (en) | 2023-08-15 |
Family
ID=60175140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710670870.3A Active CN107315018B (en) | 2017-08-08 | 2017-08-08 | Moisture detector by microwave energy leakage method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107315018B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111505024A (en) * | 2020-06-08 | 2020-08-07 | 中国电子科技集团公司第四十八研究所 | Moisture content composite detection device and detection method based on microwave technology |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05217670A (en) * | 1992-02-04 | 1993-08-27 | Sharp Corp | Microwave electric field sensing device of microwave oven |
| CN2714999Y (en) * | 2004-07-06 | 2005-08-03 | 成都骏元科技发展有限责任公司 | Microwave electrodeless discharge ultraviolet sterilizing microwave oven |
| CN101055106A (en) * | 2007-01-31 | 2007-10-17 | 蒋遂安 | Method and apparatus for quickly and deeply purifying air or water or other fluid at low cost |
| CN201637696U (en) * | 2010-02-11 | 2010-11-17 | 清华大学 | Device for measuring water content of materials by microwave combination weighing technology |
| CN102153174A (en) * | 2010-02-12 | 2011-08-17 | 姜雄律 | Microwave plasma water sterilization device |
| CN103779176A (en) * | 2014-01-21 | 2014-05-07 | 电子科技大学 | Microwave sulphur lamp and manufacture method thereof |
| CN104931514A (en) * | 2015-06-17 | 2015-09-23 | 成都兴三为科技有限公司 | Moisture sensing system of microwave resonator cavity |
-
2017
- 2017-08-08 CN CN201710670870.3A patent/CN107315018B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05217670A (en) * | 1992-02-04 | 1993-08-27 | Sharp Corp | Microwave electric field sensing device of microwave oven |
| CN2714999Y (en) * | 2004-07-06 | 2005-08-03 | 成都骏元科技发展有限责任公司 | Microwave electrodeless discharge ultraviolet sterilizing microwave oven |
| CN101055106A (en) * | 2007-01-31 | 2007-10-17 | 蒋遂安 | Method and apparatus for quickly and deeply purifying air or water or other fluid at low cost |
| CN201637696U (en) * | 2010-02-11 | 2010-11-17 | 清华大学 | Device for measuring water content of materials by microwave combination weighing technology |
| CN102153174A (en) * | 2010-02-12 | 2011-08-17 | 姜雄律 | Microwave plasma water sterilization device |
| CN103779176A (en) * | 2014-01-21 | 2014-05-07 | 电子科技大学 | Microwave sulphur lamp and manufacture method thereof |
| CN104931514A (en) * | 2015-06-17 | 2015-09-23 | 成都兴三为科技有限公司 | Moisture sensing system of microwave resonator cavity |
Non-Patent Citations (1)
| Title |
|---|
| 钟青青: "氦氖激光微波对小鼠创面愈合的影响及机制探讨", 中华理疗杂志, no. 03 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111505024A (en) * | 2020-06-08 | 2020-08-07 | 中国电子科技集团公司第四十八研究所 | Moisture content composite detection device and detection method based on microwave technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107315018B (en) | 2023-08-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5177444A (en) | Determination of carbon in fly ash from microwave attenuation and phase shift | |
| EP0521059B1 (en) | Determination of carbon in fly ash | |
| CN201449376U (en) | Device by utilizing microwave to detect moisture content of textile on line | |
| CN102095658B (en) | The detection method of sheet cigarette quality and system | |
| CN105181645A (en) | Screw-type multi-optical-path device for measuring gas concentration | |
| CN104897577B (en) | Optical fiber hydrogen detection means based on light heating | |
| CN101701850A (en) | Method for detecting temperature and blackness of flame | |
| Liu et al. | Microwave attenuation characteristics of unburned carbon in fly ash | |
| CN107870161A (en) | A kind of method suitable for transparency liquid refractometry | |
| CN101592601A (en) | High-efficiency infrared gas sensor with small volume | |
| CN107315018A (en) | A kind of microwave leakage can method moisture detector | |
| CN107462549A (en) | A kind of forest dead fuel moisture content on-line measurement device and its measuring method | |
| CN207396343U (en) | TDLAS boiler furnace gas two dimension concentration distribution detection devices based on automatic scanning system | |
| CN206399191U (en) | Novel high-frequency stove and infrared carbon sulfur analyzer | |
| CN206960382U (en) | A kind of microwave leakage can method moisture detector | |
| CN208205805U (en) | A kind of Muffle furnace | |
| CN101592599A (en) | Absorbing cavity of infrared gas sensor with wide spectrum light source | |
| CN109459393A (en) | Specific gas multiposition detection system | |
| CN107860715A (en) | A kind of carbon containing quantity measuring method of boiler slag | |
| CN110887849A (en) | Method for determining total moisture in coal by microwave method | |
| CN217084657U (en) | Laser photoacoustic spectrum detection air chamber | |
| Zhang et al. | Influence analysis of the different ash plane in the waveguide on the measurement of the carbon content of the fly ash by the microwave method | |
| CN110108659A (en) | One kind being based on near-infrared reflection formula soil humidity measuring device and its detection method | |
| CN112666122A (en) | Method for rapidly detecting glucose and moisture content after corn straw blasting pretreatment | |
| CN205374288U (en) | Gaseous telemetry unit of off -axis formula |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |