CN107063966A - A kind of wireless senser of the real-time monitoring contaminated degree of air filtering core - Google Patents
A kind of wireless senser of the real-time monitoring contaminated degree of air filtering core Download PDFInfo
- Publication number
- CN107063966A CN107063966A CN201710191983.5A CN201710191983A CN107063966A CN 107063966 A CN107063966 A CN 107063966A CN 201710191983 A CN201710191983 A CN 201710191983A CN 107063966 A CN107063966 A CN 107063966A
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- CN
- China
- Prior art keywords
- air filtering
- filtering core
- resonators
- coil
- real
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N2015/084—Testing filters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N2015/0853—Investigating permeability, pore-volume, or surface area of porous materials by electrical capacitance measurement
Abstract
The invention discloses a kind of wireless senser of the real-time monitoring contaminated degree of air filtering core, including LC resonators, reading coil（5）, wherein, the LC resonators are by inductance coil（2）With plane interdigital capacitor（3）It is composed in series, and the LC resonators are arranged between the filter layer of air filtering core；The reading coil（5）With inductance coil（2）Between pass through magnetic coupling.Reader passes through reading coil（5）Pumping signal is sent to LC resonators, and the change of LC resonator resonant frequencies is parsed according to the amplitude-modulated signal of its feedback, filter layer is finally extrapolated（1、4）The number of adsorbing contaminant amount.The present invention is simple in construction, can realize the purpose of the monitoring contaminated situation of air filtering core in real time, has positive role for reminding user to change filter core, protection user health in time.
Description
Technical field
The present invention relates to a kind of wireless senser, more particularly to a kind of real-time monitoring contaminated degree of air filtering core it is wireless
Sensor.
Background technology
In order to tackle increasingly serious air pollution, the air filter unit such as various air-conditionings, clarifier is increasingly by people
Attention and dependence, and filter core is then the core component of air filter unit.
Common various air filtering cores in the market, its principle is the characterization of adsorption using different materials in air
The impurity such as dust, PM2.5 particles carry out adsorption filtration.Air filtering core based on this principle in use itself
Can constantly it be contaminated, its strainability constantly declines with the accumulation of adsorbing contaminant.When the pollution that filter core is subject to reaches necessarily
During degree, just it is no longer able to play effective air filtration effect, the healthy of user will be endangered by such as changing not in time.
In the market still without a air filtering core that can be realized and be monitored in real time to itself contaminated degree, use
Family when in use can only be by with feeling changing filter core by rule of thumb, it is therefore necessary to develop it is a kind of it is simple it is easily realizing, can
The wireless senser of the contaminated degree of air filtering core is monitored in real time.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of wireless biography of the real-time monitoring contaminated degree of air filtering core
Sensor, its is simple in construction to be easily achieved, and the contaminated situation of air filtering core can be monitored in real time.
The present invention uses following technical scheme to solve above-mentioned technical problem：
The present invention provides a kind of wireless senser of the real-time monitoring contaminated degree of air filtering core, including LC resonators, cross-line
Circle, wherein, the LC resonators are composed in series by inductance coil and plane interdigital capacitor, and the LC resonators are arranged on air
Between the filter layer of filter core；Pass through magnetic coupling between the reading coil and inductance coil.
As the further prioritization scheme of the present invention, the reading coil is arranged on the interior of the filter chamber where air filtering core
Wall.
As the further prioritization scheme of the present invention, the center of the reading coil is alignd with inductance coil.
As the present invention further prioritization scheme, the wireless senser completed by a reader air filtering core by
The measurement of pollution level, the reader sends pumping signal to LC resonators by reading coil, and according to the tune of its feedback
Width signal resolution goes out the resonant frequency change of LC resonators, and then obtains the contaminated degree of air filtering core.
As the further prioritization scheme of the present invention, the reading coil and inductance coil co-axially align.
The present invention uses above technical scheme compared with prior art, with following technique effect：It is of the invention a kind of real-time
The wireless senser of the contaminated degree of air filtering core is monitored, its is simple in construction, be easily achieved, and need not between filter core and reader
Circuit is connected, and the normal use and replacing of filter core are not influenceed, the contaminated degree of air filtering core can be monitored in real time, from
And allow user to grasp the service condition of filter core in real time, and remind user to change filter core in time, protect user health.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is circuit theory diagrams of the invention.
Embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element or element with same or like function are represented to same or similar label eventually.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are it is understood that unless otherwise defined, all terms used herein（Including skill
Art term and scientific terminology）With the general understanding identical meaning with the those of ordinary skill in art of the present invention.Also
It should be understood that those terms defined in such as general dictionary should be understood that with the context of prior art
The consistent meaning of meaning, and unless defined as here, will not be explained with idealization or excessively formal implication.
Technical scheme is described in further detail below in conjunction with the accompanying drawings：
As shown in figure 1, a kind of wireless senser of the real-time monitoring contaminated degree of air filtering core of the present invention, including LC resonators,
Reading coil 5, wherein, the LC resonators are composed in series by inductance coil 2 and plane interdigital capacitor 3, and the LC resonators
It is arranged between the filter layer 1,4 of air filtering core.
Wherein, sent between the reading coil 5 and inductance coil 2 by magnetic coupling, reader by reading coil 5
Pumping signal parses the changes of LC resonator resonant frequencies to LC resonators, and according to amplitude-modulated signal of its feedback.
The operation principle of the wireless senser of the contaminated degree of air filtering core of monitoring in real time of the invention is：When air filtering core work
When making, its filter layer 1,4 can constantly adsorb the impurity such as dust, the PM2.5 in air, cause the change of dielectric property, Jin Ergai
Become the capacitance of plane interdigital capacitor 3, so as to cause the change of LC resonator resonant frequencies.
Fig. 2 is equivalent circuit diagram of the invention, wherein, inductance coil, by magnetic coupling between 2 and reading coil 5, is read
Number device sends pumping signal to LC resonators by reading coil 5, and parses LC resonators according to the amplitude-modulated signal of its feedback
Resonant frequency change, and then can in the hope of filter layer adsorb air plankton quantity, so as to judge its contaminated degree.
The application method of the wireless senser of the contaminated degree of air filtering core of monitoring in real time of the invention is：Will be by inductance coil
2 and the LC resonators that are composed in series of plane interdigital capacitor 3 be placed in the inside of air filtering core, i.e., LC resonators are placed in air
Between filter core multiple layers of filters 1,4；Reading coil 5 is placed in the air filtration cavity wall where air filtering core, reading coil 5
Center alignd with inductance coil 2, the two co-axially align is to increase the coefficient of coup；The circuit part of measuring appliance can access air mistake
In the control system for filtering equipment.
The wireless senser of the contaminated degree of air filtering core of monitoring in real time of the invention is demarcated using standard device, it is determined that
Corresponding relation between the resonance peak skew of air filtering core adsorbing contaminant quantity and LC resonators.After the completion of demarcation, by air filter
Core inserts air filtration intracavitary, and opening air filter unit makes its normal work, and resonance that just can be according to measured by reader is frequently
The anti-contaminated situation for releasing air filtering core of rate change.
The invention provides a kind of wireless senser of the real-time monitoring contaminated degree of air filtering core, its is simple in construction, easy
Connected between realization, and filter core and reader without circuit, the normal use and replacing of air filtering core are not influenceed, can be to sky
The contaminated degree of filter element is monitored in real time, so as to allow user to grasp the service condition of air filtering core in real time, and is carried
Awake user changes air filtering core in time, protects user health.
It is described above, it is only the embodiment in the present invention, but protection scope of the present invention is not limited thereto, and appoints
What be familiar with the people of the technology disclosed herein technical scope in, it will be appreciated that the conversion or replacement expected, should all cover
Within the scope of the present invention, therefore, protection scope of the present invention should be defined by the protection domain of claims.
Claims (5)
1. a kind of wireless senser of the real-time monitoring contaminated degree of air filtering core, it is characterised in that including LC resonators, reading
Coil（5）, wherein, the LC resonators are by inductance coil（2）With plane interdigital capacitor（3）It is composed in series, and the LC resonance
Device is arranged between the filter layer of air filtering core；The reading coil（5）With inductance coil（2）Between pass through magnetic coupling.
2. a kind of wireless senser of real-time monitoring contaminated degree of air filtering core according to claim 1, its feature exists
In the reading coil（5）The inwall for the filter chamber being arranged on where air filtering core.
3. a kind of wireless senser of real-time monitoring contaminated degree of air filtering core according to claim 1, its feature exists
In the reading coil（5）Center and inductance coil（2）Alignment.
4. a kind of wireless senser of real-time monitoring contaminated degree of air filtering core according to claim 1, its feature exists
In the wireless senser completes the measurement of the contaminated degree of air filtering core by a reader, and the reader is by reading
Number coil（5）Pumping signal is sent to LC resonators, and the resonance of LC resonators is parsed frequently according to the amplitude-modulated signal of its feedback
Rate changes, and then obtains the contaminated degree of air filtering core.
5. a kind of wireless senser of real-time monitoring contaminated degree of air filtering core according to claim 1, its feature exists
In the reading coil（5）With inductance coil（2）Co-axially align.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710191983.5A CN107063966A (en) | 2017-03-28 | 2017-03-28 | A kind of wireless senser of the real-time monitoring contaminated degree of air filtering core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710191983.5A CN107063966A (en) | 2017-03-28 | 2017-03-28 | A kind of wireless senser of the real-time monitoring contaminated degree of air filtering core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107063966A true CN107063966A (en) | 2017-08-18 |
Family
ID=59621190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710191983.5A Pending CN107063966A (en) | 2017-03-28 | 2017-03-28 | A kind of wireless senser of the real-time monitoring contaminated degree of air filtering core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107063966A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105642038A (en) * | 2015-12-31 | 2016-06-08 | 北京怡和嘉业医疗科技有限公司 | Efficiency detecting device and efficiency detecting method of filter core, and respirator |
| CN104776513B (en) * | 2015-04-26 | 2017-11-24 | 中国计量学院 | The inner-outer circulation air purifier of replacing filter core can be prompted automatically |
-
2017
- 2017-03-28 CN CN201710191983.5A patent/CN107063966A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776513B (en) * | 2015-04-26 | 2017-11-24 | 中国计量学院 | The inner-outer circulation air purifier of replacing filter core can be prompted automatically |
| CN105642038A (en) * | 2015-12-31 | 2016-06-08 | 北京怡和嘉业医疗科技有限公司 | Efficiency detecting device and efficiency detecting method of filter core, and respirator |
Non-Patent Citations (2)
| Title |
|---|
| 罗涛等: ""无源LC传感器研究现状与发展趋势综述"", 《传感器与微系统》 * |
| 豆刚等: ""基于LC谐振的无线无源应变传感器研究"", 《传感技术学报》 * |
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| PB01 | Publication | ||
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Application publication date: 20170818 |