CN110244287A - A kind of infrasound converter plant based on resonance - Google Patents
A kind of infrasound converter plant based on resonance Download PDFInfo
- Publication number
- CN110244287A CN110244287A CN201910535023.5A CN201910535023A CN110244287A CN 110244287 A CN110244287 A CN 110244287A CN 201910535023 A CN201910535023 A CN 201910535023A CN 110244287 A CN110244287 A CN 110244287A
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- infrasound
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- receiving layer
- resonance
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- 238000012546 transfer Methods 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 description 21
- 239000000126 substance Substances 0.000 description 18
- 239000004698 Polyethylene Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 230000001788 irregular Effects 0.000 description 3
- 229920002521 macromolecule Polymers 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 235000013399 edible fruits Nutrition 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000414 obstructive effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
- G01S11/14—Systems for determining distance or velocity not using reflection or reradiation using ultrasonic, sonic, or infrasonic waves
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/18—Methods or devices for transmitting, conducting or directing sound
- G10K11/20—Reflecting arrangements
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses a kind of infrasound converter plant based on resonance, belongs to infrasound application field, including receiving layer, transfer layer, reflecting layer, assists layer and shell；It is equipped with the receiving layer being sequentially overlapped from top to bottom, transfer layer, reflecting layer in the shell and assists layer；The receiving layer is for receiving a certain range of infrasound, and the intrinsic frequency of the receiving layer is fallen into the infrasonic sound wave frequency rate of the range, can generate resonance therewith；The transfer layer is used to receiving layer vibrational energy being transferred to reflecting layer；The intrinsic frequency in the reflecting layer is less than the intrinsic frequency of receiving layer, and generates stable a certain range of infrasound under the auxiliary for assisting layer；The shell is fixed on platform.A kind of infrasound converter plant based on resonance of the invention itself does not need to carry energy in feedback signal, converts out stable infrasound using resonance and carries out signal feedback, achieves positioning.
Description
Technical field
The invention belongs to infrasound application fields, relate in particular to a kind of infrasound converter plant based on resonance.
Background technique
It is well known that existing positioning device is divided into parent and daughter, most of signal used is electromagnetic wave, parent to
Daughter issues signal, and daughter receives signal and feedback signal, and parent receives the signal of daughter to daughter positioning, this side
The drawbacks of method, is that daughter needs to consume energy in feedback signal, so daughter must store energy, once daughter depleted of energy, then without
Method issues signal.
In order to solve problem above, in the such as obstructive ranging of special dimension, acoustic location exploration develops one kind itself not
The daughter for needing to carry energy replaces electromagnetic wave using a kind of new signal, that is, infrasound, and the research and development of daughter are crucial
Place.
Summary of the invention
The purpose of the present invention is providing a kind of infrasound converter plant based on resonance in view of the above shortcomings, intend to solve
Existing daughter needs the problem of consuming energy in feedback signal.To achieve the above object, the invention provides the following technical scheme:
A kind of infrasound converter plant based on resonance, including receiving layer 1, transfer layer 2, reflecting layer 3, assist layer 4 and outer
Shell 5；It is equipped with the receiving layer 1 being sequentially overlapped from top to bottom, transfer layer 2, reflecting layer 3 in the shell 5 and assists layer 4；It is described to connect
Layer 1 is received for receiving a certain range of infrasound, and the intrinsic frequency of the receiving layer 1 is fallen into the infrasonic sound wave frequency rate of the range,
Resonance can be generated therewith；The transfer layer 2 is used to 1 vibrational energy of receiving layer being transferred to reflecting layer 3；The reflecting layer 3
Intrinsic frequency is less than the intrinsic frequency of receiving layer 1, and generates stable a certain range of infrasound under the auxiliary for assisting layer 4；
The shell 5 is fixed on platform.By above structure it is found that there are intrinsic frequency in substance, intrinsic frequency is tied by substance itself
Structure, there are also quality decisions for attribute, as long as object receives the wave equal to its intrinsic frequency, will generate covibration, and put
Kinetic energy out.The intrinsic frequency calculation formula of object is (stiffness coefficient of substance is divided by quality) under f=radical sign again divided by 2 π, generally
It can be measured by sound wave experiment；The infrasound and connect that receiving layer 1 is issued for receiving a certain range of infrasound, when parent
When the intrinsic frequency of receipts layer 1 is close, receiving layer 1 generates resonance, and is regular vibration；The regular vibration of receiving layer 1 is moved
Reflecting layer 3 can be transferred to by transfer layer 2；3 fixed frequency of reflecting layer is close and is less than 1 intrinsic frequency of receiving layer, and reflecting layer 3 is being assisted
It helps and generates stable a certain range of infrasound under the auxiliary of layer 4；Since 1 energy of receiving layer reaches reflecting layer 3, energy, which exists, to decline
Subtract, the infrasound and the received infrasound different frequencies of receiving layer 1 that reflecting layer 3 generates avoid two kinds of infrasonic sound wave interference；Parent is connecing
Daughter will be positioned after receiving the infrasound of the generation of reflecting layer 3.Receiving layer 1 and the material in reflecting layer 3 can pass through increasing
Subtract quality and change shape and change its intrinsic frequency, theoretically any material can be realized, but preferred high-toughness material, height
Molecule aggregation material etc., such as polyethylene；Entire workflow is such, such as parent launches 17~18 hertz a certain
It is worth infrasound, the intrinsic frequency of receiving layer 1 is identical with the infrasonic sound wave frequency rate, and receiving layer 1, which generates, to resonate, and transfer layer 2 is by receiving layer 1
Vibrational energy pass to reflecting layer 3, there is the loss of vibrational energy at this time, the fixed frequency in reflecting layer 3 is 15~16 hertz
Between a certain value, at this time reflecting layer 3 cause vibration after assist layer 4 auxiliary under generate it is a certain in stable 15~16 hertz
The infrasound of stable frequency, parent receive the stable infrasound and can either quickly position to daughter.
Further, the assistance layer 4 is that several are supported on the light spring of 3 lower surface of reflecting layer.By above structure
It is found that several light spring auxiliary reflecting layers 3 generate regular vibration, several light springs are evenly distributed on reflecting layer 3
Lower surface；If substance is regular vibration, stable infrasound can be generated, it, may if substance is irregular vibration
The wave of various frequencies is generated, it is extremely unstable.So the reflecting layer 3 in daughter need to generate regular vibration to be received by parent.
Further, 2 lower surface of transfer layer is equipped with several protrusions, and the protrusion is contacted with 3 upper surface of reflecting layer.By
Above structure is it is found that several protrusions make transfer layer 2 more stable when vibrational energy is passed to reflecting layer 3；Transfer layer 2 is using rigid
Higher material is spent, example: POM plastic.
Further, the receiving layer 1 and reflecting layer 3 are flat.By above structure it is found that flat make receiving layer
1 and reflecting layer 3 with vibrate up and down based on.
The beneficial effects of the present invention are:
1. the invention discloses a kind of infrasound converter plant based on resonance, including receiving layer, transfer layer, reflecting layer,
Assist layer and shell；It is equipped with the receiving layer being sequentially overlapped from top to bottom, transfer layer, reflecting layer in the shell and assists layer；Institute
Receiving layer is stated for receiving a certain range of infrasound, and the intrinsic frequency of the receiving layer falls into the infrasonic sound wave frequency rate of the range
In, resonance can be generated therewith；The transfer layer is used to receiving layer vibrational energy being transferred to reflecting layer；The reflecting layer is consolidated
There is frequency to be less than the intrinsic frequency of receiving layer, and generates stable a certain range of infrasound under the auxiliary for assisting layer；It is described
Shell is fixed on platform.A kind of infrasound converter plant based on resonance of the invention, itself does not need in feedback signal
Energy is carried, stable infrasound is converted out using resonance and carries out signal feedback, achieve positioning.
Detailed description of the invention
Fig. 1 is that the present invention splits internal structural schematic diagram；
In attached drawing: 1- receiving layer, 2- transfer layer, the reflecting layer 3-, 4- assist layer, 5- shell.
Specific embodiment
With reference to the accompanying drawing with specific embodiment, the present invention is described in more detail, but the present invention is not limited to
Following embodiment.
Embodiment one:
See attached drawing 1.A kind of infrasound converter plant based on resonance, including receiving layer 1, transfer layer 2, reflecting layer 3, assistance
Layer 4 and shell 5；It is equipped with the receiving layer 1 being sequentially overlapped from top to bottom, transfer layer 2, reflecting layer 3 in the shell 5 and assists layer 4；
The receiving layer 1 is for receiving a certain range of infrasound, and the intrinsic frequency of the receiving layer 1 falls into the infrasonic sound wave frequency of the range
In rate, resonance can be generated therewith；The transfer layer 2 is used to 1 vibrational energy of receiving layer being transferred to reflecting layer 3；The reflection
The intrinsic frequency of layer 3 is less than the intrinsic frequency of receiving layer 1, and stable a certain range of time is generated under the auxiliary for assisting layer 4
Sound wave；The shell 5 is fixed on platform.By above structure it is found that there are intrinsic frequencies in substance, intrinsic frequency is by substance sheet
Body structure, there are also quality decisions for attribute, as long as object receives the wave equal to its intrinsic frequency, will generate covibration, and
And release kinetic energy.The intrinsic frequency calculation formula of object be under f=radical sign (stiffness coefficient of substance is divided by quality) again divided by 2 π,
It can be generally measured by sound wave experiment；Receiving layer 1 is for receiving a certain range of infrasound, when the infrasound that parent issues
When close with the intrinsic frequency of receiving layer 1, receiving layer 1 generates resonance, and is regular vibration；The regular vibration of receiving layer 1
Kinetic energy reflecting layer 3 is transferred to by transfer layer 2；3 fixed frequency of reflecting layer is close and is less than 1 intrinsic frequency of receiving layer, reflecting layer 3
Stable a certain range of infrasound is generated under the auxiliary for assisting layer 4；Since 1 energy of receiving layer reaches reflecting layer 3, energy is deposited
Decaying, the infrasound and the received infrasound different frequencies of receiving layer 1 that reflecting layer 3 generates avoid two kinds of infrasonic sound wave interference；Parent
Daughter will be positioned after the infrasound for receiving the generation of reflecting layer 3.Receiving layer 1 and the material in reflecting layer 3 can lead to
It crosses increase and decrease quality and changes shape and change its intrinsic frequency, theoretically any material can be realized, but preferred high tenacity material
Material, macromolecule polymeric material etc., such as polyethylene；Entirely workflow is such, such as parent launches 17~18 hertz
A certain value infrasound, the intrinsic frequency of receiving layer 1 is identical as the infrasonic sound wave frequency rate, receiving layer 1 generate resonance, transfer layer 2 will
The vibrational energy of receiving layer 1 passes to reflecting layer 3, there is the loss of vibrational energy at this time, and the fixed frequency in reflecting layer 3 is 15~
A certain value between 16 hertz, reflecting layer 3 generates stable 15~16 hertz under the auxiliary for assisting layer 4 after causing vibration at this time
In a certain stable frequency infrasound, parent receives the stable infrasound and can either quickly position to daughter.
Embodiment two:
See attached drawing 1.A kind of infrasound converter plant based on resonance, including receiving layer 1, transfer layer 2, reflecting layer 3, assistance
Layer 4 and shell 5；It is equipped with the receiving layer 1 being sequentially overlapped from top to bottom, transfer layer 2, reflecting layer 3 in the shell 5 and assists layer 4；
The receiving layer 1 is for receiving a certain range of infrasound, and the intrinsic frequency of the receiving layer 1 falls into the infrasonic sound wave frequency of the range
In rate, resonance can be generated therewith；The transfer layer 2 is used to 1 vibrational energy of receiving layer being transferred to reflecting layer 3；The reflection
The intrinsic frequency of layer 3 is less than the intrinsic frequency of receiving layer 1, and stable a certain range of time is generated under the auxiliary for assisting layer 4
Sound wave；The shell 5 is fixed on platform.By above structure it is found that there are intrinsic frequencies in substance, intrinsic frequency is by substance sheet
Body structure, there are also quality decisions for attribute, as long as object receives the wave equal to its intrinsic frequency, will generate covibration, and
And release kinetic energy.The intrinsic frequency calculation formula of object be under f=radical sign (stiffness coefficient of substance is divided by quality) again divided by 2 π,
It can be generally measured by sound wave experiment；Receiving layer 1 is for receiving a certain range of infrasound, when the infrasound that parent issues
When close with the intrinsic frequency of receiving layer 1, receiving layer 1 generates resonance, and is regular vibration；The regular vibration of receiving layer 1
Kinetic energy reflecting layer 3 is transferred to by transfer layer 2；3 fixed frequency of reflecting layer is close and is less than 1 intrinsic frequency of receiving layer, reflecting layer 3
Stable a certain range of infrasound is generated under the auxiliary for assisting layer 4；Since 1 energy of receiving layer reaches reflecting layer 3, energy is deposited
Decaying, the infrasound and the received infrasound different frequencies of receiving layer 1 that reflecting layer 3 generates avoid two kinds of infrasonic sound wave interference；Parent
Daughter will be positioned after the infrasound for receiving the generation of reflecting layer 3.Receiving layer 1 and the material in reflecting layer 3 can lead to
It crosses increase and decrease quality and changes shape and change its intrinsic frequency, theoretically any material can be realized, but preferred high tenacity material
Material, macromolecule polymeric material etc., such as polyethylene；Entirely workflow is such, such as parent launches 17~18 hertz
A certain value infrasound, the intrinsic frequency of receiving layer 1 is identical as the infrasonic sound wave frequency rate, receiving layer 1 generate resonance, transfer layer 2 will
The vibrational energy of receiving layer 1 passes to reflecting layer 3, there is the loss of vibrational energy at this time, and the fixed frequency in reflecting layer 3 is 15~
A certain value between 16 hertz, reflecting layer 3 generates stable 15~16 hertz under the auxiliary for assisting layer 4 after causing vibration at this time
In a certain stable frequency infrasound, parent receives the stable infrasound and can either quickly position to daughter.
The assistance layer 4 is that several are supported on the light spring of 3 lower surface of reflecting layer.It is by above structure it is found that several
A light spring auxiliary reflecting layer 3 generates regular vibration, several light springs are evenly distributed on 3 lower surface of reflecting layer；Such as
Fruit substance is regular vibration, then can generate stable infrasound, if substance is irregular vibration, there may be various frequencies
The wave of rate, it is extremely unstable.So the reflecting layer 3 in daughter need to generate regular vibration to be received by parent.
Embodiment three:
See attached drawing 1.A kind of infrasound converter plant based on resonance, including receiving layer 1, transfer layer 2, reflecting layer 3, assistance
Layer 4 and shell 5；It is equipped with the receiving layer 1 being sequentially overlapped from top to bottom, transfer layer 2, reflecting layer 3 in the shell 5 and assists layer 4；
The receiving layer 1 is for receiving a certain range of infrasound, and the intrinsic frequency of the receiving layer 1 falls into the infrasonic sound wave frequency of the range
In rate, resonance can be generated therewith；The transfer layer 2 is used to 1 vibrational energy of receiving layer being transferred to reflecting layer 3；The reflection
The intrinsic frequency of layer 3 is less than the intrinsic frequency of receiving layer 1, and stable a certain range of time is generated under the auxiliary for assisting layer 4
Sound wave；The shell 5 is fixed on platform.By above structure it is found that there are intrinsic frequencies in substance, intrinsic frequency is by substance sheet
Body structure, there are also quality decisions for attribute, as long as object receives the wave equal to its intrinsic frequency, will generate covibration, and
And release kinetic energy.The intrinsic frequency calculation formula of object be under f=radical sign (stiffness coefficient of substance is divided by quality) again divided by 2 π,
It can be generally measured by sound wave experiment；Receiving layer 1 is for receiving a certain range of infrasound, when the infrasound that parent issues
When close with the intrinsic frequency of receiving layer 1, receiving layer 1 generates resonance, and is regular vibration；The regular vibration of receiving layer 1
Kinetic energy reflecting layer 3 is transferred to by transfer layer 2；3 fixed frequency of reflecting layer is close and is less than 1 intrinsic frequency of receiving layer, reflecting layer 3
Stable a certain range of infrasound is generated under the auxiliary for assisting layer 4；Since 1 energy of receiving layer reaches reflecting layer 3, energy is deposited
Decaying, the infrasound and the received infrasound different frequencies of receiving layer 1 that reflecting layer 3 generates avoid two kinds of infrasonic sound wave interference；Parent
Daughter will be positioned after the infrasound for receiving the generation of reflecting layer 3.Receiving layer 1 and the material in reflecting layer 3 can lead to
It crosses increase and decrease quality and changes shape and change its intrinsic frequency, theoretically any material can be realized, but preferred high tenacity material
Material, macromolecule polymeric material etc., such as polyethylene；Entirely workflow is such, such as parent launches 17~18 hertz
A certain value infrasound, the intrinsic frequency of receiving layer 1 is identical as the infrasonic sound wave frequency rate, receiving layer 1 generate resonance, transfer layer 2 will
The vibrational energy of receiving layer 1 passes to reflecting layer 3, there is the loss of vibrational energy at this time, and the fixed frequency in reflecting layer 3 is 15~
A certain value between 16 hertz, reflecting layer 3 generates stable 15~16 hertz under the auxiliary for assisting layer 4 after causing vibration at this time
In a certain stable frequency infrasound, parent receives the stable infrasound and can either quickly position to daughter.
The assistance layer 4 is that several are supported on the light spring of 3 lower surface of reflecting layer.It is by above structure it is found that several
A light spring auxiliary reflecting layer 3 generates regular vibration, several light springs are evenly distributed on 3 lower surface of reflecting layer；Such as
Fruit substance is regular vibration, then can generate stable infrasound, if substance is irregular vibration, there may be various frequencies
The wave of rate, it is extremely unstable.So the reflecting layer 3 in daughter need to generate regular vibration to be received by parent.
2 lower surface of transfer layer is equipped with several protrusions, and the protrusion is contacted with 3 upper surface of reflecting layer.By above structure
It is found that several protrusions make transfer layer 2 more stable when vibrational energy is passed to reflecting layer 3；Transfer layer 2 is higher using rigidity
Material, example: POM plastic.
The receiving layer 1 and reflecting layer 3 are flat.By above structure it is found that flat make receiving layer 1 and reflecting layer
3 based on vibrating up and down.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all utilizations
Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content is applied directly or indirectly in other correlations
Technical field, be included within the scope of the present invention.
Claims (4)
1. a kind of infrasound converter plant based on resonance, it is characterised in that: including receiving layer (1), transfer layer (2), reflecting layer
(3), layer (4) and shell (5) are assisted；Receiving layer (1), the transfer layer being sequentially overlapped from top to bottom are equipped in the shell (5)
(2), reflecting layer (3) and assistance layer (4)；The receiving layer (1) is for receiving a certain range of infrasound, and the receiving layer (1)
Intrinsic frequency fall into the infrasonic sound wave frequency rate of the range, resonance can be generated therewith；The transfer layer (2) is used for receiving layer
(1) vibrational energy is transferred to reflecting layer (3)；The intrinsic frequency of the reflecting layer (3) is less than the intrinsic frequency of receiving layer (1), and
Stable a certain range of infrasound is generated under the auxiliary for assisting layer (4)；The shell (5) is fixed on platform.
2. a kind of infrasound converter plant based on resonance according to claim 1, it is characterised in that: the assistance layer
(4) light spring of reflecting layer (3) lower surface is supported on for several.
3. a kind of infrasound converter plant based on resonance according to claim 1, it is characterised in that: the transfer layer
(2) lower surface is equipped with several protrusions, and the protrusion is contacted with reflecting layer (3) upper surface.
4. a kind of infrasound converter plant based on resonance described according to claim 1~one of 3, it is characterised in that: described
Receiving layer (1) and reflecting layer (3) are flat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910535023.5A CN110244287B (en) | 2019-06-20 | 2019-06-20 | Infrasonic wave frequency conversion device based on resonance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910535023.5A CN110244287B (en) | 2019-06-20 | 2019-06-20 | Infrasonic wave frequency conversion device based on resonance |
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| CN110244287A true CN110244287A (en) | 2019-09-17 |
| CN110244287B CN110244287B (en) | 2023-02-21 |
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|---|---|---|---|---|
| FR1062415A (en) * | 1951-06-18 | 1954-04-23 | Equipment for infrared treatment | |
| SU1269854A1 (en) * | 1984-12-21 | 1986-11-15 | Институт Машиноведения Им.А.А.Благонравова | Method of exciting the oscillations |
| US4712037A (en) * | 1985-07-03 | 1987-12-08 | Nederlandse Centrale Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek | Resonant piezoelectric sensor |
| CN1038227A (en) * | 1988-04-01 | 1989-12-27 | Cetec声能学公司 | Sonic generator |
| JP2007111619A (en) * | 2005-10-19 | 2007-05-10 | Alps Electric Co Ltd | Vibration generation device |
| CN104236700A (en) * | 2014-09-30 | 2014-12-24 | 重庆泽嘉机械有限公司 | Infrasonic sensor |
| CN104578669A (en) * | 2013-10-21 | 2015-04-29 | 北京纳米能源与系统研究所 | Electric signal output device based on elastic part, positioning device and positioning method |
| TW201825928A (en) * | 2017-01-13 | 2018-07-16 | 大陸商麥克思商務咨詢（深圳）有限公司 | Ultrasonic element |
| CN108880578A (en) * | 2018-07-31 | 2018-11-23 | 深圳市银河联邦科技文化有限公司 | Module, radio wave frequency conversion and Schumann wave transmission method occur for schumann resonance harmonic wave |
| CN208295404U (en) * | 2018-06-19 | 2018-12-28 | 惠州方舟检测技术有限公司 | A kind of noise dose meter auxiliary stand |
-
2019
- 2019-06-20 CN CN201910535023.5A patent/CN110244287B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1062415A (en) * | 1951-06-18 | 1954-04-23 | Equipment for infrared treatment | |
| SU1269854A1 (en) * | 1984-12-21 | 1986-11-15 | Институт Машиноведения Им.А.А.Благонравова | Method of exciting the oscillations |
| US4712037A (en) * | 1985-07-03 | 1987-12-08 | Nederlandse Centrale Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek | Resonant piezoelectric sensor |
| CN1038227A (en) * | 1988-04-01 | 1989-12-27 | Cetec声能学公司 | Sonic generator |
| JP2007111619A (en) * | 2005-10-19 | 2007-05-10 | Alps Electric Co Ltd | Vibration generation device |
| CN104578669A (en) * | 2013-10-21 | 2015-04-29 | 北京纳米能源与系统研究所 | Electric signal output device based on elastic part, positioning device and positioning method |
| CN104236700A (en) * | 2014-09-30 | 2014-12-24 | 重庆泽嘉机械有限公司 | Infrasonic sensor |
| TW201825928A (en) * | 2017-01-13 | 2018-07-16 | 大陸商麥克思商務咨詢（深圳）有限公司 | Ultrasonic element |
| CN208295404U (en) * | 2018-06-19 | 2018-12-28 | 惠州方舟检测技术有限公司 | A kind of noise dose meter auxiliary stand |
| CN108880578A (en) * | 2018-07-31 | 2018-11-23 | 深圳市银河联邦科技文化有限公司 | Module, radio wave frequency conversion and Schumann wave transmission method occur for schumann resonance harmonic wave |
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| CN110244287B (en) | 2023-02-21 |
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