CN207850279U - A kind of compact magnetostrictive displacement sensor - Google Patents
A kind of compact magnetostrictive displacement sensor Download PDFInfo
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- CN207850279U CN207850279U CN201820335760.1U CN201820335760U CN207850279U CN 207850279 U CN207850279 U CN 207850279U CN 201820335760 U CN201820335760 U CN 201820335760U CN 207850279 U CN207850279 U CN 207850279U
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- electronics storehouse
- displacement sensor
- magnetostrictive displacement
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- hood
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Abstract
This application discloses a kind of compact magnetostrictive displacement sensor, including installation pillar, electronics storehouse control room and mobile magnet ring, electronics storehouse control room includes the electronics storehouse shell for being installed on the installation pillar and having groove cavity；The electronics storehouse tail-hood being installed at the top of the groove cavity；Groove typed insulation cover, groove profile shielding case, sensing element and the control circuit board arranged successively from outside to inside between the groove cavity and electronics storehouse tail-hood, along the electronics storehouse shell radial direction.It is not necessary that other are arranged for realizing the fastener of axially position, while the thickness of electronics storehouse control room is also shortened since the axially position of each component can rely on the trench structure of adjacent component to realize using the sensor, be conducive to reduce installation space.Therefore, compact magnetostrictive displacement sensor provided by the utility model can solve the problems, such as that installation space to be detected is small because occupying little space with easy for installation.
Description
Technical field
The utility model is related to sensor technical field, more particularly to a kind of compact magnetostrictive displacement sensor.
Background technology
Magnetostrictive displacement sensor carries out displacement measurement using mangneto torsional wave as propagation medium, has non-connect
Touch measure, precision is high, the advantages such as reproducible, reliable and stable, adaptable, be widely used in metallurgy, papermaking, chemical industry, newly
The fields such as the energy.
Under normal conditions, magnetostrictive displacement sensor can be divided into built-in and two kinds of external according to the installation method.For
For built-in magnetostrictive displacement sensor, installation pillar, electronics storehouse control room and mobile magnet ring are generally included, wherein peace
One end of dress pillar is fixed in the control room of electronics storehouse, and the other end is equipped with mobile magnet ring.Existing magnetostrictive displacement passes
The shell of the electronics storehouse control room of sensor is mostly linked together by bolt and equipment, thus when designing electronics storehouse control room
Certain installation space need to be reserved, may cause to connect between each component so not compact so that existing electronics storehouse control room
Volume it is more big, correspondingly, the installation space of occupancy is also larger, relatively narrow for installation space and required precision is higher
For measurement equipment to be checked, existing magnetostrictive displacement sensor is difficult to meet installation requirement.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of compact magnetostrictive displacement sensor, can be used for
Detect the smaller measurement equipment to be checked of installation space.
Its concrete scheme is as follows：
A kind of compact magnetostrictive displacement sensor provided herein, including installation pillar, electronics storehouse control room
With mobile magnet ring, electronics storehouse control room includes：
It is installed on the installation pillar and has the electronics storehouse shell of groove cavity；
It is installed at the top of the groove cavity, the electronics storehouse tail-hood for separating the groove cavity with the external world；
Be installed on the installation pillar and between the groove cavity and electronics storehouse tail-hood, along the electricity
Groove typed insulation cover, groove profile shielding case, sensing element and the control circuit board that sub- storehouse shell radial direction is arranged successively from outside to inside.
Preferably, further include being installed between the top of the groove cavity and electronics storehouse tail-hood, for sealing
The sealing ring of the two.
Preferably, further include being installed between the sealing ring and electronics storehouse shell, in axial direction fixing
The fluorine baffle ring of the two.
Preferably, the center of the electronics storehouse tail-hood upper surface is equipped with round ring boss.
Preferably, further include being installed in the round ring boss, for the fastener of fixed world cable.
Preferably, the control circuit board includes that one group of operating circuit and one group are used to replace the spare of the operating circuit
Circuit.
Preferably, the installation pillar is fixed with one with electronics storehouse shell.
Preferably, electronics storehouse shell is fixed with one with electronics storehouse tail-hood.
Preferably, the groove profile shielding case is fixed with one with the control circuit board.
With respect to the background art, a kind of compact magnetostrictive displacement sensor provided by the utility model, including peace
Fill pillar, electronics storehouse control room and mobile magnet ring, wherein electronics storehouse control room include be installed on the installation pillar and
Electronics storehouse shell with groove cavity；It is installed at the top of the groove cavity, for by the groove cavity and outside
The electronics storehouse tail-hood that boundary separates；Be installed on the installation pillar and positioned at the groove cavity and electronics storehouse tail-hood it
Between, the groove typed insulation cover arranged successively from outside to inside along the electronics storehouse shell radial direction, groove profile shielding case, sensing element and
Control circuit board.
Since the groove cavity is between electronics storehouse shell and electronics storehouse tail-hood, and the groove profile is exhausted
Edge cover, the groove profile shielding case, the sensing element and the control circuit board are in the groove cavity and along the electricity
The radial direction of sub- storehouse shell is arranged successively from outside to inside, it is thus evident that the axially position of each component relies primarily on adjacent component
Trench structure is not necessarily to consider the peace of setting fastener naturally without other are arranged again for realizing the fastener of axially position
Space and installation site problem are filled, not only contributes to reduce installation space, and also help simplified assembling process.In addition, again
Since each component is to arrange in radial directions, which can shorten electronics storehouse control room to a certain extent
Thickness is conducive to further reduce installation space.
Therefore, compact magnetostrictive displacement sensor provided by the utility model has easy for installation, occupied space
Small advantage can solve the problems, such as that installation space to be detected is small.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Axial explosion signals of the Fig. 1 by a kind of compact mangneto displacement sensor that embodiment provides of the utility model
Figure；
Fig. 2 is the appearance assumption diagram of Fig. 1.
Reference numeral is as follows：
Pillar 1, electronics storehouse control room 2, mobile magnet ring 3 and fastener 4 are installed；
Electronics storehouse shell 21, electronics storehouse tail-hood 22, groove typed insulation cover 23, groove profile shielding case 24, sensing element 25, control electricity
Road plate 26, sealing ring 27 and fluorine baffle ring 28；
Groove cavity 211.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
In order to make those skilled in the art more fully understand the utility model, below in conjunction with the accompanying drawings and specifically
The utility model is described in further detail for embodiment.
It please refers to Fig.1 and Fig. 2, Fig. 1 is by a kind of compact mangneto displacement sensor that embodiment provides of the utility model
Axial exploded perspective view；Fig. 2 is the appearance assumption diagram of Fig. 1.
The utility model embodiment discloses a kind of compact mangneto displacement sensor, including installation pillar 1, the control of electronics storehouse
Room 2 processed and mobile magnet ring 3.Wherein, electronics storehouse control room 2 includes electronics storehouse shell 21, electronics storehouse tail-hood 22, groove typed insulation cover
23, groove profile shielding case 24, sensing element 25 and control circuit board 26.
Installation pillar 1 is hollow tube, and one end is connected with electronics storehouse control room 2, specifically, installation pillar 1 and electronics storehouse
Shell 21 is fixed with one by welding, and certainly, the attachment of the two is without being limited thereto.
Core component of the electronics storehouse control room 2 as the application, appearance is substantially cylindrical, therefore can be matched by interference
The mode of conjunction, which squeezes, to be fixed in measurement equipment cylindrical mounting hole to be checked.Certainly, the face shaping of electronics storehouse control room 2 is not limited to
This, can also use the other shapes such as regular polygon, have no effect on realization the purpose of this utility model.
In this specific embodiment, the top of electronics storehouse shell 21 has groove cavity 211.Specifically, electronics storehouse shell
Body 21 is the downward projection of stairstepping cylindrical metal shell in bottom, and correspondingly, groove cavity 211 is also that bottom is downwardly projected
Stairstepping cylindrical cavity.Similarly, the groove typed insulation cover 23 and groove profile shielding case 24 being mounted in groove cavity 211
Construction is substantially identical as groove cavity 211, and there is only the difference on outer diameter, and details are not described herein.
In addition, groove typed insulation cover 23, groove profile shielding case 24, sensing element 25 and control circuit board 26 are along electronics storehouse shell 21
Radial direction arrange successively from outside to inside.
It can be seen from the above, the outer wall of groove typed insulation cover 23 connects with the inner wall of electronics storehouse shell 21, and similarly, groove profile shielding
The outer wall of cover 24 connects with the inner wall of groove typed insulation cover 23.In this specific embodiment, the material of groove typed insulation cover 23 preferably four
Vinyl fluoride is stamped to form by the way of injection molding, is fixed together by welding with control circuit board 26, be mainly used for every
Shaped grooved shielding case 24 and electronics storehouse shell 21, while can also be used to alleviate and receiving the vibratory impulse that sensing element 25 generates.Certainly,
The structure and material of groove typed insulation cover 23 are without being limited thereto.
The preferred brass of material of groove profile shielding case 24, the sheet metal component being stamped to form by the way of die cast, and with control
Circuit board 26 processed is fixed with one by welding, naturally, the change of sensing element 25 is clipped in groove profile shielding case 24 and control electricity
Between road plate 26.The effect of groove profile shielding case 24 be draw up sensing element 25 position and shield outer signals to sensing element 25
Influence.Certainly, the structure and material of groove profile shielding case 24 are also not necessarily limited to this.
Sensing element 25 can be fixed on installation pillar 1 and put in one end of electronics storehouse control room 2, and pass through groove profile shielding case
24 cavity is axially fixed between groove profile shielding case 24 and control circuit board 26.In this specific embodiment, sensing element 25
Including signal sampling element, usually, signal sampling element includes waveguide filament and signal check-out module.
Control circuit board 26 is substantially disk-shaped, is stuck in the cavity of groove profile shielding case 24.In this specific embodiment, it controls
The specially Redundancy Design of circuit board 26, including one group of operating circuit and one group of stand-by circuit for replacing operating circuit, so as to
When operating circuit breaks down, stand-by circuit directly works without dismounting electronics storehouse control room 2.Certainly, control circuit board
26 construction is without being limited thereto.
Electronics storehouse control room 2 further includes sealing ring 27 and fluorine baffle ring 28.Sealing ring 27 is mounted on the recessed of electronics storehouse shell 21
Between the top and electronics storehouse tail-hood 22 of groove profile cavity 211, it is mainly used for both sealings.Fluorine baffle ring 28 is mounted on 27 He of sealing ring
Between electronics storehouse shell 21, it is mainly used in axial direction fixing the two.In this specific embodiment, sealing ring 27 is specially O
Type sealing ring, when electronics storehouse control room 2 is pressed into measurement equipment to be checked, the outer of O-ring seal usually with measurement equipment to be checked
Inner wall of the hole installing is in contact.Certainly, the structure of sealing ring 27 is without being limited thereto, specifically related to the structure of electronics storehouse shell 21.
Electronics storehouse tail-hood 22 is mounted on the top of groove cavity 211, is mainly used for sealed groove cavity 211, will
Groove cavity 211 is isolated from the outside world out.In this specific embodiment, since the top of groove cavity 211 is substantially in disk
Shape, correspondingly, electronics storehouse tail-hood 22 are also substantially in the form of annular discs, and are fixed with one by welding with electronics storehouse shell 21, certainly,
The attachment of the two is without being limited thereto.It is worth noting that, the upper surface center of electronics storehouse tail-hood 22, which is equipped with inner wall, has screw thread
Round ring boss, correspondingly, the application further includes the fastener 4 being installed in round ring boss.
Fastener 4 is specially housing screw, is mainly used for fixed world cable, and plays the control of sealed electronic storehouse simultaneously
The effect of room 2.Specifically, the contact surface of the inner wall of the round ring boss of electronics storehouse tail-hood 22 and fastener 4 passes through M18x1.5's
Threaded connection is fixed together.Certainly, the structure and fixed form of electronics storehouse tail-hood 22 are not limited to this.
In addition, the size adjustable of mobile magnet ring 3, can make corresponding adjustment according to the installation pore size of measurement equipment to be checked,
It is mainly used for inhibiting high-frequency noise interference.
The operation principle of compact magnetostrictive displacement sensor provided by the utility model is as follows：
When measurement, the control circuit board 26 in electronics storehouse control room 2 generates current impulse, and the magnetic field that this electric current generates is along quick
Waveguide filament movement in sensing unit 25.Mobile magnet ring 3 on installation pillar 1 also generates a magnetic field simultaneously, when electric current generates
Magnetic field when intersect with the magnetic field that mobile magnet ring 3 generates, waveguide filament generates magnetostrictive effect, one strain-pulse of generation, this
Element detection is passed along waveguide filament with fixed speed and is measured in pulse back, by measure between current impulse and strain-pulse when
Between can be accurately determined the displacement of magnet ring.
In conclusion compact magnetostrictive displacement sensor provided by the utility model, including installation pillar 1, electricity
Sub- storehouse control room 2 and mobile magnet ring 3.Wherein, electronics storehouse control room 2 includes electronics storehouse shell 21 and electronics storehouse tail-hood 22, and electric
The open groove cavity in top 211 is equipped in sub- storehouse shell 21.Electronics storehouse control room 2 further includes being located at along electronics storehouse shell 21
Groove typed insulation cover 23, groove profile shielding case 24, sensing element 25 and the control circuit board 26 that radial direction is sequentially distributed from outside to inside,
It is apparent that the axially position of each component relies primarily on the trench structure of adjacent component, without other are arranged again for realizing axis
To the fastener of positioning, it is not necessarily to consider the installation space and installation site problem of setting fastener naturally, is conducive to reduce installation
Space, and to a certain extent installation space is further reduced by shortening the thickness of electronics storehouse control room 2.Therefore, this reality
There is advantage that is easy for installation, occupying little space with novel provided compact magnetostrictive displacement sensor, can solve
The small problem of installation space to be detected.
The foregoing description of the disclosed embodiments enables those skilled in the art to realize or use the utility model.
Various modifications to these embodiments will be apparent for a person skilled in the art, general original as defined herein
Reason can be realized in other embodiments without departing from the spirit or scope of the present utility model.Therefore, this practicality is new
Type is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase
Consistent widest range.
Claims (9)
1. a kind of compact magnetostrictive displacement sensor, including installation pillar, electronics storehouse control room and mobile magnet ring, feature
It is, electronics storehouse control room includes：
It is installed on the installation pillar and has the electronics storehouse shell of groove cavity；
It is installed at the top of the groove cavity, the electronics storehouse tail-hood for separating the groove cavity with the external world；
Be installed on the installation pillar and between the groove cavity and electronics storehouse tail-hood, along the electronics storehouse
Groove typed insulation cover, groove profile shielding case, sensing element and the control circuit board that shell radial direction is arranged successively from outside to inside.
2. compact magnetostrictive displacement sensor according to claim 1, which is characterized in that further include be installed on it is described
Sealing ring between the top of groove cavity and electronics storehouse tail-hood, for sealing the two.
3. compact magnetostrictive displacement sensor according to claim 2, which is characterized in that further include be installed on it is described
Between sealing ring and electronics storehouse shell, in axial direction both fixed fluorine baffle ring.
4. compact magnetostrictive displacement sensor according to claim 3, which is characterized in that on the tail-hood of the electronics storehouse
The center on surface is equipped with round ring boss.
5. compact magnetostrictive displacement sensor according to claim 4, which is characterized in that further include be installed on it is described
In round ring boss, for the fastener of fixed world cable.
6. compact magnetostrictive displacement sensor according to claim 2, which is characterized in that the control circuit board packet
Include one group of operating circuit and one group of stand-by circuit for replacing the operating circuit.
7. compact magnetostrictive displacement sensor according to claim 2, which is characterized in that the installation pillar and institute
Electronics storehouse shell is stated to be fixed with one.
8. compact magnetostrictive displacement sensor according to claim 7, which is characterized in that electronics storehouse shell with
Electronics storehouse tail-hood is fixed with one.
9. compact magnetostrictive displacement sensor according to claim 8, which is characterized in that the groove profile shielding case with
The control circuit board is fixed with one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820335760.1U CN207850279U (en) | 2018-03-12 | 2018-03-12 | A kind of compact magnetostrictive displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820335760.1U CN207850279U (en) | 2018-03-12 | 2018-03-12 | A kind of compact magnetostrictive displacement sensor |
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| CN207850279U true CN207850279U (en) | 2018-09-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112710218A (en) * | 2020-12-15 | 2021-04-27 | 北京特倍福电子技术有限公司 | Compact redundant built-in magnetostrictive displacement sensor |
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2018
- 2018-03-12 CN CN201820335760.1U patent/CN207850279U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112710218A (en) * | 2020-12-15 | 2021-04-27 | 北京特倍福电子技术有限公司 | Compact redundant built-in magnetostrictive displacement sensor |
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