CN206362300U - Integrated external magnetostrictive displacement sensor - Google Patents
Integrated external magnetostrictive displacement sensor Download PDFInfo
- Publication number
- CN206362300U CN206362300U CN201720064069.XU CN201720064069U CN206362300U CN 206362300 U CN206362300 U CN 206362300U CN 201720064069 U CN201720064069 U CN 201720064069U CN 206362300 U CN206362300 U CN 206362300U
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- China
- Prior art keywords
- displacement sensor
- housing
- magnetostrictive displacement
- electronics storehouse
- integrated external
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 42
- 230000006698 induction Effects 0.000 claims abstract description 13
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 239000003365 glass fiber Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
Abstract
The utility model discloses integrated external magnetostrictive displacement sensor, including hollow housing, it is provided with housing on slide rail, slide rail and is slidably fitted with sliding block, magnet is provided with sliding block；The waveguide filament parallel with slide rail is provided with housing；It is provided with housing in electronics storehouse, electronics storehouse and is provided with circuit board and induction coil, waveguide filament one end enters electronics storehouse and is connected on circuit board, the maincenter lead for extending to induction coil, induction coil connection circuit board is additionally provided with waveguide filament.Integrated external magnetostrictive displacement sensor of the present utility model carries out displacement monitoring using contactless magnetostriction principle, overcomes the wear problem that sliding resistive electronic ruler is present, and measurement accuracy is higher；The utility model is arranged on enclosure interior after electronics storehouse is miniaturized, and is integrated together the mechanical part and electronic section of magnetostrictive displacement sensor, reduces magnetostrictive displacement sensor and installs the space taken, using easier for installation.
Description
Technical field
The utility model is related to displacement transducer, particularly a kind of integrated external magnetostrictive displacement sensor.
Background technology
The positions such as folding mould, screw rod on injection machine are promoted, ejection, injection seat advance and retreat are required for carrying out displacement detecting, existing
The injection machine in stage mainly makees displacement transducer using sliding resistive electronic ruler, and its performance and precision are to meet plain edition note substantially
The requirement of molding machine.But sliding resistive electronic ruler has the shortcomings that deterioration, and with the development of science and technology, the precision of injection machine will
More and more higher is sought, the precision of sliding resistive electronic ruler is difficult to the requirement for meeting present injection machine, therefore, in order to compete excellent in the field
Gesture, designs a kind of higher displacement transducer of required precision and is necessary.
Utility model content
The utility model is intended at least solve one of above-mentioned technical problem in correlation technique to a certain extent.Therefore,
The utility model proposes the integrated external magnetostrictive displacement sensor that a kind of magnetic energy is contactless.
The utility model solves the technical scheme that its technical problem used：
It is provided with integrated external magnetostrictive displacement sensor, including hollow housing, housing on slide rail, slide rail sliding
Dynamic be provided with sliding block, sliding block is provided with magnet；The waveguide filament parallel with slide rail is provided with the housing；Set in housing
Have and circuit board and induction coil are provided with electronics storehouse, the electronics storehouse, described waveguide filament one end enters electronics storehouse and is connected to
The maincenter lead for extending to induction coil is additionally provided with circuit board, on waveguide filament, the induction coil connects circuit board.
The operation principle of magnetostrictive displacement sensor of the present utility model is：When working sensor, in circuit board
Electronic circuit produce an initial pulse, when this initial pulse is transmitted in waveguide filament, while producing one along before waveguide filament direction
The rotating excitation field entered, when the permanent-magnetic field in this magnetic field and sliding block meets, produces magnetostrictive effect, makes waveguide filament
Twisting, produces the strain mechanical pulsing of a velocity of sound, and this pulse is installed in the line of induction in electronics storehouse by maincenter lead
Circle is perceived and is converted into corresponding current impulse, and the time difference between two pulses is calculated by electronic circuit, you can accurate
Measure tested displacement.
As the improvement of above-mentioned technical proposal, it is provided with the electronics storehouse outside metal screen layer, the metal screen layer
It is coated with heat-shrink tube.Electronics storehouse is placed on enclosure interior, and housing is preferably that there is provided the first heavy shield effectiveness for the housing of aluminum；
Metal screen layer in electronics storehouse is preferably that there is provided the second heavy shield effectiveness for copper cover.Magnetostrictive displacement of the present utility model
Sensor has dual shield effect, and strong antijamming capability can be suitably used for adverse circumstances.
Further, the waveguide filament extends from inside to outside from electronics storehouse, and end of the waveguide filament away from electronics storehouse is provided with silica gel
Bar.
Further, the part in the waveguide filament stretching electronics storehouse is arranged with the inner tube with shield effectiveness.Inner tube is both to ripple
Seal wire plays supporting function, while can also bring shield effectiveness, waveguide filament is also obtained dual shielding protection.
Further, the waveguide filament is coated with glass fiber hose, and glass fiber hose is protected to waveguide filament.
As the improvement of above-mentioned technical proposal, the housing is provided at both ends with end cap, is set between the end cap and housing
There is sealing gasket.
As the improvement of above-mentioned technical proposal, the electronics storehouse is installed close to one of end cap, and electronics storehouse passes through described
Hirschmann joint of the end cap connection positioned at hull outside.
As the improvement of above-mentioned technical proposal, the shell intracorporeal indwelling has the pull bar chamber for installing pull bar.Housing is compatible
Built-in drawbar structure, the magnetic scale of two kinds of structures is general, improves the scope of application of housing, it is possible to reduce the species of housing,
Die cost is reduced, cost is reduced.
As the improvement of above-mentioned technical proposal, flexural pivot is provided with the sliding block.
As the improvement of above-mentioned technical proposal, it has been wholely set in fixed seat, the fixed seat and has been provided with outside the housing
Mounting hole.Bolt through fixed seat is fixedly mounted on magnetostrictive displacement sensor in the place of needs.
The beneficial effects of the utility model are：
Integrated external magnetostrictive displacement sensor of the present utility model is entered using contactless magnetostriction principle
Row displacement monitoring, overcomes the wear problem that sliding resistive electronic ruler is present, and measurement accuracy is higher；The utility model is electronics storehouse
Enclosure interior is arranged on after miniaturization, the mechanical part and electronic section of magnetostrictive displacement sensor is integrated together, subtracts
Few magnetostrictive displacement sensor installs the space taken, using easier for installation.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is internal structure schematic diagram of the present utility model.
Fig. 2 is top view of the present utility model.
Embodiment
The integrated external magnetostrictive displacement sensor provided referring to figs. 1 to Fig. 2, the utility model, including straight-tube shape
Hollow housing 1, the housing 1 formed using aluminium profile, can directly mold or die cast；The front end of housing 1 is set
Drive end bearing bracket 16 is equipped with, the rear end of housing 1 is provided with rear end cap 17, sealing gasket is provided between housing 1 and drive end bearing bracket 16, rear end cap 17
18, improve the sealing property of housing 1.The upper surface of housing 1, which is provided with slide rail, slide rail, is slidably fitted with sliding block 2, is set on sliding block 2
It is equipped with flexural pivot 3, sliding block 2 and is provided with magnet, the magnet is preferably permanent magnet.Electronics is divided into inside the housing 1
Storehouse region and the region of pull bar chamber 20.The electronics storehouse includes being provided with support 10, the support 10 on a base, the base
Waveguide filament 4, circuit board 5 and induction coil 6 are installed.The waveguide filament 4 be arranged on the top of the internal cavities of housing 1 and with cunning
Rail is parallel, and the one end of waveguide filament 4 is connected on circuit board 5, and the other end of waveguide filament 4 passes electronics storehouse, reaches in pull bar chamber 20, ripple
The maincenter lead 7 for extending to induction coil 6 is additionally provided with seal wire 4, the induction coil 6 connects circuit board 5.Further, it is
The accuracy of instrument is improved, shields in electromagnetic interference, the electronics storehouse and is provided with metal screen layer 8, the metal screen layer 8
Preferably copper cover, is shielded, then in the present embodiment, the housing 1 of aluminum is carried together with base made of copper to electronics storehouse inside
For the first heavy shield effectiveness, copper cover provides the second heavy shield effectiveness, realizes dual shield, strong antijamming capability can be suitably used for doing
Disturb serious adverse circumstances.Heat-shrink tube 9 is also wrapped on outside electronics storehouse.Electronics storehouse is used as an entirety, you can directly by interference,
The form such as clamp or bolt is installed in housing 1, can also be fixedly connected on one of end cap of housing 1, be passed through end cap
Be fit into inside housing 1.In the present embodiment, the electronics storehouse is connected on drive end bearing bracket 16, and is connected by drive end bearing bracket
Connect the Hirschmann joint 19 outside housing 1.
Being provided with the pull bar chamber 20 of the housing 1 can between more than one locating sleeve 14, multiple locating sleeves 14
PVC hose 15 is provided with, after the waveguide filament 4 is passed from electronics storehouse, through the locating sleeve 14 and PVC hose in pull bar chamber 20
15 are installed.Waveguide filament 4 is coated with the glass fiber hose 13 for playing protection and supporting role.Waveguide filament 4 passes electronics
The part in storehouse is also arranged with inner tube 12, and said inner tube 12 is preferred to use metal making, while playing a supporting role in protection
With shielded effect, waveguide filament 4 is set also to obtain dual shielding protection.The end of waveguide filament 4 is provided with silica gel strip 11, waveguide
4 ends of silk are connected on circuit board by high temperature wire.
The operation principle of magnetostrictive displacement sensor of the present utility model is：When working sensor, in circuit board 5
Electronic circuit produce an initial pulse, when this initial pulse is transmitted in waveguide filament 4, while producing one along the direction of waveguide filament 4
The rotating excitation field of advance, when the permanent-magnetic field in this magnetic field and sliding block 2 meets, produces magnetostrictive effect, makes waveguide filament 4
Twist, produce the strain mechanical pulsing of a velocity of sound, this pulse is installed in the sense in electronics storehouse by maincenter lead 7
Answer coil 6 to perceive and be converted into corresponding current impulse, the time difference between two pulses is calculated by electronic circuit, you can
Accurately measure tested displacement.
Further, magnetostrictive displacement sensor of the present utility model also improves to some extent on electronic circuit：One is to cancel
External voltage comparator, and use the voltage comparator inside PIC24EP single-chip microcomputers to replace；Two be to use high integration
PIC24EP64GP202 single-chip microcomputers carry out time interval measurement, replace the PIC24FJ32GA102+TDC-GP21 of original scheme；
Three be to replace realizing " DAC+ voltage amplifications+V/I conversions " using discrete component in original scheme using AD8760 chips,
So as to reduce cost and improve reliability.
Further, magnetostrictive displacement sensor of the present utility model indwelling in housing 1 has the drawing for installing pull bar
Rod cavity 20.The compatible built-in drawbar structure of housing 1, the magnetic scale of two kinds of structures is general, it is possible to reduce the species of housing 1, also subtracts
Die cost is lacked.
Further, it has been wholely set outside the housing 1 in fixed seat 21, the fixed seat 21 and has been provided with mounting hole.Pass through
The bolt of fixed seat 21 is fixedly mounted on magnetostrictive displacement sensor in the place of needs.
Integrated external magnetostrictive displacement sensor of the present utility model is entered using contactless magnetostriction principle
Row displacement monitoring, overcomes the wear problem that sliding resistive electronic ruler is present, and measurement accuracy is higher；The utility model is electronics storehouse
Enclosure interior is arranged on after miniaturization, the mechanical part and electronic section of magnetostrictive displacement sensor is integrated together, subtracts
Few magnetostrictive displacement sensor installs the space taken, using easier for installation.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be
Mechanically connect or electrically connect；Can be joined directly together, can also be indirectly connected to by intermediary, can be two
The connection of element internal or the interaction relationship of two elements.For the ordinary skill in the art, can basis
Concrete condition understands concrete meaning of the above-mentioned term in the utility model.
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can in any way combine, unless specifically stated otherwise, can be equivalent by other or have
The alternative features of similar purpose are replaced, i.e. unless specifically stated otherwise, during each feature is a series of equivalent or similar characteristics
One embodiment.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Any modifications, equivalent substitutions and improvements made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
1. integrated external magnetostrictive displacement sensor, it is characterised in that：Including hollow housing（1）, housing（1）It is upper to set
Have and be slidably fitted with sliding block on slide rail, slide rail（2）, sliding block（2）Inside it is provided with magnet；The housing（1）Inside it is provided with and slide rail
Parallel waveguide filament（4）；Housing（1）Inside it is provided with electronics storehouse, the electronics storehouse and is provided with circuit board（5）And induction coil
（6）, the waveguide filament（4）One end enters electronics storehouse and is connected to circuit board（5）On, waveguide filament（4）On be additionally provided with and extend to
Induction coil（6）Maincenter lead（7）, the induction coil（6）Connect circuit board（5）.
2. integrated external magnetostrictive displacement sensor according to claim 1, it is characterised in that：In the electronics storehouse
It is provided with metal screen layer（8）, the metal screen layer（8）It is coated with heat-shrink tube（9）.
3. integrated external magnetostrictive displacement sensor according to claim 1, it is characterised in that：The waveguide filament
（4）Extend from inside to outside from electronics storehouse, waveguide filament（4）End away from electronics storehouse is provided with silica gel strip（11）.
4. integrated external magnetostrictive displacement sensor according to claim 3, it is characterised in that：The waveguide filament
（4）The part for stretching out electronics storehouse is arranged with the inner tube with shield effectiveness（12）.
5. integrated external magnetostrictive displacement sensor according to claim 4, it is characterised in that：The waveguide filament
（4）It is coated with glass fiber hose（13）.
6. integrated external magnetostrictive displacement sensor according to claim 1, it is characterised in that：The housing two ends
It is provided with end cap, the end cap and housing（1）Between be provided with sealing gasket（18）.
7. integrated external magnetostrictive displacement sensor according to claim 6, it is characterised in that：The electronics storehouse is leaned on
Nearly one of end cap is installed, and electronics storehouse connects the Hirschmann joint positioned at hull outside by the end cap（19）.
8. integrated external magnetostrictive displacement sensor according to claim 1, it is characterised in that：The housing（1）
Interior indwelling has the pull bar chamber for installing pull bar（20）.
9. integrated external magnetostrictive displacement sensor according to claim 1, it is characterised in that：The sliding block（2）
On be provided with flexural pivot（3）.
10. integrated external magnetostrictive displacement sensor according to claim 1, it is characterised in that：The housing（1）
Fixed seat has been wholely set it outside（21）, the fixed seat（21）On be provided with mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720064069.XU CN206362300U (en) | 2017-01-17 | 2017-01-17 | Integrated external magnetostrictive displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720064069.XU CN206362300U (en) | 2017-01-17 | 2017-01-17 | Integrated external magnetostrictive displacement sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206362300U true CN206362300U (en) | 2017-07-28 |
Family
ID=59379877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720064069.XU Active CN206362300U (en) | 2017-01-17 | 2017-01-17 | Integrated external magnetostrictive displacement sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206362300U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109631737A (en) * | 2019-01-07 | 2019-04-16 | 上海自动化仪表有限公司 | The magnetostrictive displacement sensor of quick response |
| CN109779612A (en) * | 2017-11-14 | 2019-05-21 | 中国石油化工股份有限公司 | A kind of carbon beam hoisting system underground pump dynagraoph test device and method |
| CN112729479A (en) * | 2020-12-23 | 2021-04-30 | 北京斯克维思仪表有限公司 | Coil type magnetostrictive sensor |
| CN116202408A (en) * | 2023-05-05 | 2023-06-02 | 广东润宇传感器股份有限公司 | Magnetostrictive displacement sensor calibration method, magnetostrictive displacement sensor calibration system, magnetostrictive displacement sensor calibration device, and magnetostrictive displacement sensor calibration storage medium |
-
2017
- 2017-01-17 CN CN201720064069.XU patent/CN206362300U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779612A (en) * | 2017-11-14 | 2019-05-21 | 中国石油化工股份有限公司 | A kind of carbon beam hoisting system underground pump dynagraoph test device and method |
| CN109779612B (en) * | 2017-11-14 | 2023-12-01 | 中国石油化工股份有限公司 | Downhole pump work diagram testing device and method for carbon rod lifting system |
| CN109631737A (en) * | 2019-01-07 | 2019-04-16 | 上海自动化仪表有限公司 | The magnetostrictive displacement sensor of quick response |
| CN112729479A (en) * | 2020-12-23 | 2021-04-30 | 北京斯克维思仪表有限公司 | Coil type magnetostrictive sensor |
| CN116202408A (en) * | 2023-05-05 | 2023-06-02 | 广东润宇传感器股份有限公司 | Magnetostrictive displacement sensor calibration method, magnetostrictive displacement sensor calibration system, magnetostrictive displacement sensor calibration device, and magnetostrictive displacement sensor calibration storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: External integral type magnetostrictive displacement sensor Effective date of registration: 20200602 Granted publication date: 20170728 Pledgee: Bank of Guangzhou Limited by Share Ltd. Jiangmen branch Pledgor: JIANGMEN RUNYU SENSOR TECHNOLOGY Co.,Ltd. Registration number: Y2020980002706 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20221226 Granted publication date: 20170728 Pledgee: Bank of Guangzhou Limited by Share Ltd. Jiangmen branch Pledgor: JIANGMEN RUNYU SENSOR TECHNOLOGY CO.,LTD. Registration number: Y2020980002706 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CP03 | Change of name, title or address |
Address after: No. 11 Bei'an North Road, Huicheng, Xinhui District, Jiangmen City, Guangdong Province, 529100 Patentee after: Guangdong Runyu Sensor Co.,Ltd. Country or region after: China Address before: No. 11 Bei'an North Road, Huicheng, Xinhui District, Jiangmen City, Guangdong Province, 529100 Patentee before: JIANGMEN RUNYU SENSOR TECHNOLOGY CO.,LTD. Country or region before: China |
|
| CP03 | Change of name, title or address |