CN108760027A - A kind of modified very low frequencies micro-vibration signal inductor - Google Patents
A kind of modified very low frequencies micro-vibration signal inductor Download PDFInfo
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- CN108760027A CN108760027A CN201810964081.5A CN201810964081A CN108760027A CN 108760027 A CN108760027 A CN 108760027A CN 201810964081 A CN201810964081 A CN 201810964081A CN 108760027 A CN108760027 A CN 108760027A
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- vibration
- receiving sheet
- vibration signal
- frame body
- low frequencies
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- 239000012528 membrane Substances 0.000 claims abstract description 27
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 14
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 230000005489 elastic deformation Effects 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241001269238 Data Species 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
- G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
- G01H11/08—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means using piezoelectric devices
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The present invention provides a kind of very low frequencies micro-vibration signal inductor that one kind can accurately incude and collect extremely low frequency range (0.1Hz~1000Hz) micro-vibration signal, the inductor includes vibration receiving sheet, piezoelectric membrane vane and frame body, frame body even support vibrates receiving sheet, so that vibration receiving sheet is not subjected to displacement when receiving vibration signal, the frame body limits a shielding space with vibration receiving sheet, the piezoelectric membrane vane is attached to the bottom surface of vibration receiving sheet and in the shielding space, vibrate receiving sheet and the conductive energy of frame body, the space of an electromagnetic shielding is formed after being connect with " ground wire ", piezoelectric membrane vane is located in the shielding space.
Description
Technical field
The present invention relates to vibration induction fields, and in particular to a kind of modified very low frequencies micro-vibration signal inductor.
Background technology
In recent years, with the development of science and technology, the raising of many key components precision and Computing ability, it is right
Collecting and surveying ability in the induction of vibration signal has significant raising.So that the application of vibration signal has the neck more extensively expanded
Domain, for example, the heart impact, accurate digital control equipment, bridge vibration monitoring etc., but prior art device for extremely low frequency range (such as
0.1Hz~1000Hz) Vibration Signal in Frequency Domain detection lack effectively and low cost means.
Issued patents CN205562026U discloses a kind of very low frequencies micro-vibration signal inductor, including vibration receiving sheet,
Piezoelectric membrane vane and the holder in hollow form for being used to support vibration receiving sheet, the vibration receiving sheet are to use carbon fiber material
The flaky materials such as material, glass fiber material, metal material, plastic plate, these materials should have high-tensile, high elastic modulus,
Creep resistance is strong, and can effectively be made a response to the vibration of 0.1Hz~1000Hz.Vibration receiving sheet is connect with support assorted, shape
Support at holder to 1 periphery of vibration receiving sheet.It vibrates the through-hole in the bottom surface and holder of receiving sheet and forms a cavity, it is described
Piezoelectric membrane vane is flattened on 1 bottom center position of vibration receiving sheet.Wherein：The effect of the cavity is existed for vibration receiving sheet
There are enough elastic deformation spaces for vertical direction.Through-hole in holder is stepped hole, and vibration receiving sheet is set into the stepped hole
Interior, the edge of vibration receiving sheet 1 can be bonded to each other with the stepped hole inner wall of holder 2.The stepped hole, which can play, connects vibration
Take up 1 lateral fixed function.Product structure is simple, of low cost, and high sensitivity is small；It realizes to the complete of very low frequencies signal
Covering.
Invention content
The present invention is improved for the issued patents CN205562026U technical solutions proposed, proposes that one kind can be accurate
Incude and collect a kind of very low frequencies micro-vibration signal inductor of extremely low frequency range (0.1Hz~1000Hz) micro-vibration signal, it should
Inductor includes vibration receiving sheet, piezoelectric membrane vane and frame body, and frame body even support vibrates receiving sheet, so that vibration connects
It takes up and is not subjected to displacement when receiving vibration signal, the frame body limits a shielding space, the pressure with vibration receiving sheet
Conductive film vane is attached to the bottom surface of vibration receiving sheet and in the shielding space, vibrates receiving sheet and frame body is conductive
Can, the space of an electromagnetic shielding is formed after being connect with " ground wire ", piezoelectric membrane vane is located in the shielding space.
In the preferred embodiment of the offer of the present invention, the frame body is integrated；In the present invention, other are more preferable
In embodiment, there is the frame body hollow stent and pedestal, hollow stent one end to be mounted on the base, the other end and vibration
Receiving sheet coordinates, so that hollow holder is configured to a closed shielding space.In the still other preferred implementation side of the present invention
In case, the pedestal is a plate, and the plate is integrally formed or is fixedly connected, the mode packet being fixedly connected with hollow stent
It includes but is not limited to weld, rivet or be spirally connected.
In some preferred embodiments of the invention, the pedestal is circuit board, and the holder is fixedly connected with circuit board,
The piezoelectric membrane vane and circuit board electrical connection, the design structure is light, does not need additional structure, piezoelectric membrane is made to pass
Piece is complete directly in shielding space is connect with external circuit by circuit board for sense.
Some are provided preferably in embodiment in the present invention, and perforation is offered on the frame body, by the perforation, will be pressed
Conductive film vane is electrically connected with external circuit.
In some specific implementation modes of the invention, frame body is substantially in the container-like of opening,
In other of the invention specific implementation modes, the holder welding, rivet or be spirally connected by way of and circuit
Plate connects, and has not only saved space, has reduced making step.
Further, the piezoelectric membrane vane is flattened on vibration receiving sheet bottom surface.
Further, the vibration receiving sheet, which is one piece, to make the extensional vibration signal of 0.1Hz~1000Hz
The plank of response and conductive energy.
Still further, the frame body is made of the material with conductive and compressive property.
Piezoelectric membrane vane is placed in shielding space by the present invention, makes extraneous electromagnetic signal that can not interfere with by piezoelectricity
The electric signal that film-sensing piece is converted into reacts more accurate field；This example 3 uses circuit board as pedestal, holder
It is welded on circuit board with scolding tin, has not only saved space, reduce making step.
The micro-vibration signal of extremely low frequency range (0.1Hz~1000Hz) can be delicately sensed using above-mentioned design structure.
And industrial vibration is can be widely applied to, the detection of heart impact signal vibration.
Description of the drawings
Fig. 1 is a kind of bonding state structural schematic diagram of very low frequencies micro-vibration signal inductor in the embodiment of the present invention 1.
Fig. 2 is exploded perspective schematic diagram in Fig. 1.
Fig. 3 is a kind of bonding state structural schematic diagram of very low frequencies micro-vibration signal inductor in the embodiment of the present invention 2.
Fig. 4 is exploded perspective schematic diagram in Fig. 3.
Fig. 5 is a kind of bonding state structural schematic diagram of very low frequencies micro-vibration signal inductor in the embodiment of the present invention 3.
Fig. 6 is exploded perspective schematic diagram in Fig. 4.
Fig. 7 surveys institute's mapping shape in the case of source signal without friction for the embodiment of the present invention 2
Fig. 8 surveys institute's mapping shape in the case of source signal without friction for the present invention is not carried out
Specific implementation mode
The present invention will be described in detail below in conjunction with the accompanying drawings,
Wherein, in the present invention：
" piezoelectric membrane vane " refers to " sensor that corresponding electric signal is generated with the deformation of vibration receiving sheet "；
" vibration receiving sheet " is high-tensile, and high elastic modulus, creep resistance is strong, and can effectively to 0.1Hz~
The vibration of 1000Hz makes a response, and the selection of material includes but is limited to composite conducting plank, sheet metal；
" frame body ", " hollow stent " are made of conductive material；
Embodiment 1
As shown in Fig. 1~2, the present invention provides a kind of specific embodiment of modified very low frequencies micro-vibration signal inductor,
Including vibration receiving sheet 2, piezoelectric membrane vane and that be used to support vibration receiving sheet 2 is in hollow bowl-shape frame body A, and vibration connects
The 2 and frame body A that takes up is connected, and specific fit system can refer to the cooperation side that issued patents CN205562026U is improved
Formula, such as in such a way that stepped hole is set, vibration receiving sheet is connected with frame body A, forms frame body A to 2 side of vibration receiving sheet
The support of edge, limit vibration receiving sheet, avoids vibration receiving sheet from not being subjected to displacement when receiving vibration signal.Vibration receives
The bottom surface of piece 2 forms a shielding space 3 with the cavity in frame body A, and the piezoelectric membrane vane smooth (such as stickup) exists
2 bottom center position of receiving sheet is vibrated, the lead 11 of piezoelectric membrane vane 1 is guided to by the perforation A0 opened on frame body A
Outside frame body.
Wherein, shielding space is that there are enough elastic deformation spaces in vertical direction for vibration receiving sheet 2.
The vibration receiving sheet 2 is to be adopted as the flaky materials such as composite conducting plank, sheet metal, these materials should have
Conduction, high-tensile, high elastic modulus, creep resistance is strong, and can effectively be made a response to the vibration of 0.1Hz~1000Hz；
The frame body A is that for conduction and have the material of compressive property.
Frame body A and the shape of vibration receiving sheet 2 are mutually matched；
Shape about frame body A can do a variety of transformation, can be in that bowl-shape, cup-shaped etc. is a variety of container-like, or its
His shape, as long as shielding space can be formed.
The product structure of the embodiment of the present invention is simple, of low cost, and high sensitivity is small.It realizes to very low frequencies signal
All standing.The design fundamentals of the present invention are after vibration receiving sheet 2 receives longitudinal vibration signal, to believe with vibration
Number corresponding deformation is made, the piezoelectric membrane vane deformation for being close to vibrate receiving sheet 2 generates corresponding electric signal.Due to using upper
The micro-vibration signal of extremely low frequency range (0.1Hz~1000Hz) can delicately be sensed by stating design structure.And it widely applies
In industrial vibration, the detection of heart impact vibration.
It can see by Fig. 7 present example measured datas, in source without friction, the modified very low frequencies are micro- to shake
The very small substantially numerical value of the airborne signals that dynamic signal inductor senses is within ± 5.And the product of the present invention is not carried out in Fig. 8,
The airborne signals sensed are opposite just bigger, and value is within ± 15.
Embodiment 2
The present embodiment 2 is identical as the inventive concept of embodiment 1, and difference is frame body being split as holder and pedestal, pedestal
It is in the present embodiment a plate, can be metal can also be conductive sheet metal, as shown in figs. 34, the present invention provides one kind and changes
Into the specific embodiment of type very low frequencies micro-vibration signal inductor, including vibrate receiving sheet 2, piezoelectric membrane vane, for branch
The hollow stent 4 and pedestal 5 of support vibration receiving sheet 2, the vibration receiving sheet 2 is to be adopted as composite conducting plank, sheet metal
Equal flaky materials, these materials should have conduction, and high-tensile, high elastic modulus, creep resistance is strong, and can be effectively right
The vibration of 0.1Hz~1000Hz makes a response.
It vibrates receiving sheet 2 to be connected with hollow stent 4, forms support of the hollow stent 4 to 2 edge of vibration receiving sheet,
Hollow stent 4 is mounted on pedestal 5, as shown, vibration receiving sheet 2, hollow stent 4 are enclosed a shielding with pedestal 5
Space 3, the piezoelectric membrane vane is flattened on 2 bottom center position of vibration receiving sheet, similarly, as shown in figure 3, piezoelectricity is thin
The lead of film vane 1 is guided to by the perforation opened on 4 side wall of hollow stent outside hollow stent.
Wherein：The effect of the cavity is that in vertical direction, there are enough elastic deformation spaces for vibration receiving sheet 2.
Wherein：The hollow stent 4 is that for conduction and have the material of compressive property.And hollow stent 4 is received with vibration
The shape of piece 2 is mutually matched, and hollow stent 4 can match each other with pedestal 5 and connect, and when receiving vibration signal, vibration receives
Piece 2, the hollow stent 4 for being used to support vibration receiving sheet 2 and pedestal 5 are connected into an entirety, are not subjected to displacement.
The product structure of the embodiment of the present invention is simple, of low cost, and high sensitivity is small.It realizes to very low frequencies signal
All standing.The design fundamentals of the present invention are after vibration receiving sheet 2 receives longitudinal vibration signal, to believe with vibration
Number corresponding deformation is made, the piezoelectric membrane vane deformation for being close to vibrate receiving sheet 2 generates corresponding electric signal.Due to using upper
The micro-vibration signal of extremely low frequency range (0.1Hz~1000Hz) can delicately be sensed by stating design structure.And it widely applies
In industrial vibration, the detection of heart impact vibration.
Embodiment 3
On the basis of embodiment 2, difference is pedestal being designed to circuit board (pcb board) the present embodiment, is based on the hair
Bright design, by hollow stent directly by welding, the method for riveting, fastened by screw is fixed on circuit boards, as illustrated in fig. 1 and 2,
Electric signal is connected to external circuit, pedestal, hollow branch by the lead of piezoelectric membrane vane 1 by the copper foil cabling of circuit board
Frame is enclosed an electromagnetic shielding space with vibration receiving sheet, and the piezoelectric membrane vane is flattened on 2 bottom of vibration receiving sheet
Face center and simultaneously be located at the shielding space within, using wiring board replace pedestal, realize construction shielding space while
It avoids the problem outside the extraction of piezoelectric membrane vane lead, structure is more succinct light；
It is in vertical direction for vibration receiving sheet 2 there are enough elastic deformation spaces that the shielding space 3, which constructs space,
And there is shielding action to be in order to avoid extraneous electromagnetic signals interfere simultaneously.
Specifically, the vibration receiving sheet, which is one piece, to make a response the extensional vibration signal of 0.1Hz~1000Hz
And the creep resistant plank that has mechanical performance.
The design fundamentals of the present invention are, after vibration receiving sheet receives longitudinal vibration signal, with vibration signal
Corresponding deformation is made, the piezoelectric membrane vane deformation for being close to vibrate receiving sheet generates corresponding electric signal.Due to using above-mentioned
Design structure can delicately sense the micro-vibration signal of extremely low frequency range (0.1Hz~1000Hz).And it is widely used in
Industrial vibration, the detection of heart impact vibration.
The very low frequencies micro-vibration signal inductor that above-described embodiment 1~3 provides limits a shielding space, by this
Shielding space it is possible to prevente effectively from external electromagnetic signal interference, product structure is simple, of low cost, and high sensitivity is small.
Realize all standing to very low frequencies signal.
Above-described embodiment is the description of the invention, is not limitation of the invention, it is any to simple transformation of the present invention after
Scheme all belong to the scope of protection of the present invention.
Claims (9)
1. a kind of very low frequencies micro-vibration signal inductor, it is characterised in that：The inductor includes vibration receiving sheet, piezoelectric membrane biography
Feel piece and frame body, the vibration receiving sheet and frame body are conductive, frame body support vibration receiving sheet, the frame body and vibration
Receiving sheet limits a shielding space, and the piezoelectric membrane vane is attached to the bottom surface of vibration receiving sheet and positioned at shielding sky
In.
2. very low frequencies micro-vibration signal inductor according to claim 1, it is characterised in that：The frame body has hollow branch
Frame and pedestal, hollow stent one end are mounted on the base, the other end and vibration receiving sheet cooperation, so that hollow holder is by structure
Cause a closed shielding space.
3. very low frequencies micro-vibration signal inductor according to claim 2, it is characterised in that：The pedestal is a plate,
The plate is integrally formed or is fixedly connected with hollow stent.
4. very low frequencies micro-vibration signal inductor according to claim 2, it is characterised in that：The pedestal is circuit board,
The hollow stent is fixedly connected with circuit board, the piezoelectric membrane vane and circuit board electrical connection.
5. very low frequencies micro-vibration signal inductor according to claim 1, it is characterised in that：The frame body is substantially in opening
It is container-like.
6. very low frequencies micro-vibration signal inductor according to claim 4, it is characterised in that：The hollow stent passes through weldering
The mode for connecing, riveting or being spirally connected is connect with circuit board.
7. very low frequencies micro-vibration signal inductor according to claim 1, it is characterised in that：The piezoelectric membrane vane
It is flattened on vibration receiving sheet bottom surface.
8. very low frequencies micro-vibration signal inductor according to claim 1, it is characterised in that：The vibration receiving sheet is one
Block can be made a response to the extensional vibration signal of 0.1Hz~1000Hz and conductive plank.
9. very low frequencies micro-vibration signal inductor according to claim 1, it is characterised in that：The frame body is by having conduction
And the material of compressive property is made.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810964081.5A CN108760027A (en) | 2018-08-23 | 2018-08-23 | A kind of modified very low frequencies micro-vibration signal inductor |
| PCT/CN2019/101989 WO2020038436A1 (en) | 2018-08-23 | 2019-08-22 | Improved extremely-low-frequency micro-vibration signal sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810964081.5A CN108760027A (en) | 2018-08-23 | 2018-08-23 | A kind of modified very low frequencies micro-vibration signal inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108760027A true CN108760027A (en) | 2018-11-06 |
Family
ID=63967631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810964081.5A Pending CN108760027A (en) | 2018-08-23 | 2018-08-23 | A kind of modified very low frequencies micro-vibration signal inductor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108760027A (en) |
| WO (1) | WO2020038436A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020038436A1 (en) * | 2018-08-23 | 2020-02-27 | 德清县德意电脑有限公司 | Improved extremely-low-frequency micro-vibration signal sensor |
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| CN105651375A (en) * | 2016-03-31 | 2016-06-08 | 德清县德意电脑有限公司 | Extremely low frequency micro-vibration signal sensor |
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| JP4552883B2 (en) * | 2006-04-19 | 2010-09-29 | 株式会社デンソー | Vibration detection method |
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| CN204348004U (en) * | 2015-01-13 | 2015-05-20 | 无锡物联网产业研究院 | A kind of intrusion detector |
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| CN108760027A (en) * | 2018-08-23 | 2018-11-06 | 德清县德意电脑有限公司 | A kind of modified very low frequencies micro-vibration signal inductor |
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2018
- 2018-08-23 CN CN201810964081.5A patent/CN108760027A/en active Pending
-
2019
- 2019-08-22 WO PCT/CN2019/101989 patent/WO2020038436A1/en active Application Filing
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| CN1159573A (en) * | 1996-03-07 | 1997-09-17 | 三星电子株式会社 | Vibration test sensor |
| CN105651375A (en) * | 2016-03-31 | 2016-06-08 | 德清县德意电脑有限公司 | Extremely low frequency micro-vibration signal sensor |
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