CN2482058Y - Induction type vibration sensor - Google Patents
Induction type vibration sensor Download PDFInfo
- Publication number
- CN2482058Y CN2482058Y CN 01218680 CN01218680U CN2482058Y CN 2482058 Y CN2482058 Y CN 2482058Y CN 01218680 CN01218680 CN 01218680 CN 01218680 U CN01218680 U CN 01218680U CN 2482058 Y CN2482058 Y CN 2482058Y
- Authority
- CN
- China
- Prior art keywords
- coil
- magnet
- magnetic conductor
- shell
- type vibration
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model relates to an inductance type vibration sensor, which comprises a magnet, a magnetizer, a coil, a coil framework, an elastic strip, and a casing. The coil is wound on the coil framework, the magnetizer surrounds the inside and the outside of the coil, a clearance is arranged between the coil and the magnetizer, two magnets are respectively arranged on the magnetizer at two axial ends of the coil, the N pole is opposite to the S pole. The elastic strip is positioned between one end of the magnet and the magnetizer, the both ends are fixed with the casing, and the components are all arranged inside the casing. The adoption of the principle of the electromagnetic induction enhances the induction and difference capability on the vibration, therefore the anti-interference performance is also greatly enhanced.
Description
The utility model relates to vibration transducer, and particularly a kind of inductance type vibration transducer is used for changing vibration into electric signal.
At present, the vibration transducer that is used for anti-intrusion detector mainly is a piezoelectric ceramic piece, and its principle of work is to make its generation deformation and produce voltage by vibration wave.The shortcoming of this sensor is that sensitivity is difficult for adjusting, and anti-interference is poor, false alarm often occurs.
The purpose of this utility model just provides a kind ofly can easily adjust sensitivity, the inductance type vibration transducer of good in anti-interference performance.
The technical solution of the utility model is: comprise magnet, magnetic conductor, coil, coil rack, flexure strip, shell, coil is on coil rack, magnetic conductor the inner and outer ring of coil around, gapped between coil and the magnetic conductor, two blocks of magnet are set respectively on the magnetic conductor at the axial two ends of coil, its N utmost point is extremely relative with S, and a microscler flexure strip is arranged between magnet at one end and the magnetic conductor, and its two ends and shell are fixed.Above-mentioned all parts all place in the shell, leave the gap between magnet that links to each other with flexure strip and the shell, and the side and the shell of coil are fixed.
Described magnetic conductor is that E shape selenium steel disc constitutes relatively.
Described magnet is cylindrical permanent magnet.
The utility model has the advantages that: owing to adopt the principle of electromagnetic induction, can be by changing the elasticity of flexure strip, the magnetic field intensity of permanent magnet, the number of turn of coil etc. any one, all can change its sensitivity; Because its range of sensitivity is very wide, to the induction discrimination enhancing of vibration, so its interference free performance also improves greatly.
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present utility model.
Referring to Fig. 1, the utility model comprises magnet 1, magnetic conductor 4, coil 5, coil rack 6, flexure strip 2, shell 3, coil 5 is on coil rack 6, magnetic conductor 4 the inner and outer ring of coil 5 around, gapped between coil 5 and the magnetic conductor 4, two blocks of magnet 1 are set respectively on the magnetic conductor 4 at coil 5 axial two ends, its N utmost point is extremely relative with S, one microscler flexure strip 2 is arranged between magnet 1 at one end and the magnetic conductor 4, and its two ends and shell 3 are fixing, and above-mentioned all parts all place in the shell 3.Leave the gap between magnet 1 and the shell 3, the side of coil and shell 3 are fixing.Flexure strip 2 also can be other shapes.
After shell 3 receives vibration wave, connected coil 5 is also done identical vibration, and the first half of magnetic conductor 4 is just vibrated through after the conduction of flexure strip 2, just forming relative motion between the magnetic conductor 4 of top and the bottom and between coil 5 and the magnetic conductor 4, producing the magnetic field of variation and the motion of coil 5 cutting magnetic lines like this, produce induction electromotive force in the coil, realized the conversion of vibration and electric signal.
Described magnetic conductor 4 constitutes relatively for E shape selenium steel disc, also can be other shapes.
Described magnet 1 is cylindrical permanent magnet, also can be other shapes.
Claims (3)
1, a kind of inductance type vibration transducer, it is characterized in that: comprise magnet, magnetic conductor, coil, coil rack, flexure strip, shell, coil is on coil rack, magnetic conductor the inner and outer ring of coil around, gapped between coil and the magnetic conductor, at coil two two blocks of magnet are set respectively on the magnetic conductor of axle head, its N utmost point is extremely relative with S, one flexure strip is arranged between magnet at one end and the magnetic conductor, its two ends and shell are fixed, above-mentioned all parts all place in the shell, leave the gap between magnet that links to each other with flexure strip and the shell, and the side and the shell of coil are fixed.
2, inductance type vibration transducer according to claim 1 is characterized in that: described magnetic conductor is that E shape selenium steel disc constitutes relatively.
3, inductance type vibration transducer according to claim 1 is characterized in that: described magnet is cylindrical permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01218680 CN2482058Y (en) | 2001-04-16 | 2001-04-16 | Induction type vibration sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01218680 CN2482058Y (en) | 2001-04-16 | 2001-04-16 | Induction type vibration sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2482058Y true CN2482058Y (en) | 2002-03-13 |
Family
ID=33636675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01218680 Expired - Fee Related CN2482058Y (en) | 2001-04-16 | 2001-04-16 | Induction type vibration sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2482058Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403991A (en) * | 2010-09-17 | 2012-04-04 | 上海格尼特控制技术有限公司 | Hall switch |
-
2001
- 2001-04-16 CN CN 01218680 patent/CN2482058Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403991A (en) * | 2010-09-17 | 2012-04-04 | 上海格尼特控制技术有限公司 | Hall switch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102355617B (en) | Moving-iron unit for loudspeaking device | |
| WO2009068856A3 (en) | Generator for converting mechanical vibrational energy into electrical energy | |
| CN110012398B (en) | Balanced vibration system | |
| JPH07240995A (en) | Magnetic circuit for speaker | |
| CN106026776B (en) | Magnetostrictive thin film formula tire vibration TRT | |
| CN108600920A (en) | a kind of bone-conduction speaker | |
| CN210840043U (en) | Vibration sound production device and electronic product | |
| CN2482058Y (en) | Induction type vibration sensor | |
| CN104767346A (en) | Electromagnetic type vibration energy collector based on Halbach array | |
| CN215420044U (en) | Vibration energy source collecting device | |
| CN113595354B (en) | Vibration energy collection device | |
| CN207783125U (en) | A kind of bone-conduction speaker | |
| CN105979444B (en) | Vibration exciter capable of being installed on structure | |
| JP3766683B2 (en) | Axial driven vibrator | |
| CN201226595Y (en) | Moving magnetic type bone conduction audio transducer | |
| CN101089656A (en) | Speed type magnetoelectric seis | |
| CN204538936U (en) | A kind of low frequency permanent magnetic vibration generator | |
| CN110212731B (en) | Electromagnetic vibration energy collector based on folding cantilever beam | |
| CN202183866U (en) | Moving iron unit for loudspeaking device | |
| CN2465160Y (en) | Differential magnetic and electric relative vibration speed sensor | |
| CN219019014U (en) | Micro-speaker | |
| CN1230693A (en) | Vibration sensor | |
| CN2349583Y (en) | Magnetic assembly for shock-sensor | |
| CN219017237U (en) | Miniature noise reduction module | |
| CN112886863B (en) | Electromagnetic vibration energy collector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |