CN2465160Y - Differential magnetic and electric relative vibration speed sensor - Google Patents
Differential magnetic and electric relative vibration speed sensor Download PDFInfo
- Publication number
- CN2465160Y CN2465160Y CN01217399.1U CN01217399U CN2465160Y CN 2465160 Y CN2465160 Y CN 2465160Y CN 01217399 U CN01217399 U CN 01217399U CN 2465160 Y CN2465160 Y CN 2465160Y
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- Prior art keywords
- coil
- housing
- differential type
- speed sensors
- utility
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- Expired - Fee Related
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- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 230000014759 maintenance of location Effects 0.000 claims 1
- 230000006698 induction Effects 0.000 description 5
- 230000001771 impaired effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000009699 differential effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The utility model discloses a differential type magnetic and electric relative vibration speed sensor which is mainly composed of a shell body, a coil and a magnetic device, wherein, the coil is fixedly connected with the shell body, and the magnetic device is connected with the shell body through a kinematic pair. Because the coil is fixedly connected with the shell body in the utility model, no matter whether induced electromotive force is generated, outgoing lines don't have moving trends. The utility model has the advantage of stable and reliable work performance.
Description
The utility model relates to a kind of sensor, and especially a kind of speed pickup belongs to field of sensing technologies.
At present, known magnetoelectricity relative velocity sensor is made up of the magneto-electric induction element that is installed in the housing, its common structure is to fixedly mount magnet steel in the housing, and be equipped with can be movable push rod, push rod one end stretches out outside the housing, the other end is equipped with coil, and an end of coil links to each other with housing, and the other end is drawn by extension line.During work, vibration signal is imported by push rod, and push rod drives coil and moves in the magnetic field that magnet steel forms, and coil is owing to cutting magnetic line produces the induction electromotive force that is directly proportional with movement velocity, and exports electric signal by extension line.Because coil and the extension line that is attached thereto must have motion when working, coil and extension line are impaired easily, and the stability and the reliability of therefore existing magnetoelectricity relative velocity working sensor are not ideal enough.
The purpose of this utility model is: at the shortcoming that above-mentioned existing speed pickup exists, and can be thereby propose a kind of extension line because of the impaired stability of the moving relative vibrating speed sensors of differential type magnetoelectricity higher with reliability.
In order to achieve the above object, the relative vibrating speed sensors of differential type magnetoelectricity of the present utility model mainly is made up of housing, coil, magnetic device, and wherein coil and housing are connected, and magnetic device is connected with housing by kinematic pair.
During installation, the magnetic device in the utility model is connected with the extraneous vibration source.When it is subjected to vibrating, to move and be with magnetic field also to produce motion, resultant magnetic fields equally also can produce the induction electromotive force that is directly proportional with movement velocity with respect to the motion of coil in coil, and this electromotive force is exported in the mode of electric signal by extension line.Because coil and housing in the utility model are connected, therefore no matter wherein have or not induction electromotive force to generate, extension line does not all have movement tendency.Like this, the work of the utility model sensor is more stable, reliable.
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of an embodiment of the utility model.
1 is push rod among Fig. 1, the 2nd, and protecgulum, the 3rd, spring, the 4th, spacer, the 5th, coil rack, the 6th, coil, the 7th, housing, the 8th, magnet steel, the 9th, extension line, the 10th, nut, the 11st, bonnet, the 12nd, screw.
Housing 1 two ends of the relative vibrating speed sensors of differential type magnetoelectricity shown in Figure 1 are fixed with forward and backward lid 2 and 11 by screw 12.Housing 1 internal fixation has two groups around to opposite coil groups 6.Two groups of loop A, B respectively have an end line by extension line 9 outputs.The two ends of coil groups 6 are passed through spacer 4 respectively by forward and backward lid 2 and 11 axial location.Magnet steel 8 is by nut 10 and fasten in the middle of push rod 1, is positioned at coil 6, and forms air gap between the coil 6.One end of this push rod 1 stretches out from protecgulum 2, is connected with the extraneous vibration source during installation.
When push rod 1 is subjected to vibrating, the Movement in Magnetic Field of moving band magnet steel 8 and forming, resultant magnetic fields is with respect to the motion of fixed coil 6, in loop A, B, produce the positive and negative induction electromotive force that is directly proportional with movement velocity respectively, this because the differential action that the back-roll of two coils produces doubles the voltage signal of output.In addition, because coil 6 assembly spaces in the present embodiment open wide, therefore can coiling number of turn more coil, thus the sensitivity that helps to improve sensor.Obviously, in the course of the work, this coil maintains static all the time, the extension line damage that can not fracture.
In a word, the sensor of present embodiment has outstanding advantages such as dependable performance, working stability, sensing sensitivity.Can estimate, will be more welcome after promoting.
Claims (4)
1. the relative vibrating speed sensors of differential type magnetoelectricity mainly is made up of housing, coil, magnetic device, and it is characterized in that: described coil and housing are connected, and magnetic device is connected with housing by kinematic pair.
2. the relative vibrating speed sensors of differential type magnetoelectricity according to claim 1 is characterized in that: described housing internal fixation has two groups around to opposite coil, and these two groups of coils respectively have an end line to export by extension line.
3. the relative vibrating speed sensors of differential type magnetoelectricity according to claim 2 is characterized in that: there is forward and backward lid at described housing two ends by screw retention, the two ends of described coil groups respectively by spacer by forward and backward lid axial location.
4. the relative vibrating speed sensors of differential type magnetoelectricity according to claim 3, it is characterized in that: described magnet steel is by nut and fasten in the middle of push rod, is positioned at coil, and forms air gap between the coil, one end of described push rod stretches out from protecgulum, is connected with the extraneous vibration source during installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01217399.1U CN2465160Y (en) | 2001-02-13 | 2001-02-13 | Differential magnetic and electric relative vibration speed sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01217399.1U CN2465160Y (en) | 2001-02-13 | 2001-02-13 | Differential magnetic and electric relative vibration speed sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2465160Y true CN2465160Y (en) | 2001-12-12 |
Family
ID=33635635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01217399.1U Expired - Fee Related CN2465160Y (en) | 2001-02-13 | 2001-02-13 | Differential magnetic and electric relative vibration speed sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2465160Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100363727C (en) * | 2005-03-02 | 2008-01-23 | 燕山大学 | Parallel electromagnetic six-dimensional vibrating speed sensors |
| CN103925987A (en) * | 2013-09-27 | 2014-07-16 | 安徽省传感器厂 | Inertia moving coil type electric sensor |
-
2001
- 2001-02-13 CN CN01217399.1U patent/CN2465160Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100363727C (en) * | 2005-03-02 | 2008-01-23 | 燕山大学 | Parallel electromagnetic six-dimensional vibrating speed sensors |
| CN103925987A (en) * | 2013-09-27 | 2014-07-16 | 安徽省传感器厂 | Inertia moving coil type electric sensor |
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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 |