CN110411328A - Magnetostrictive displacement sensor - Google Patents
Magnetostrictive displacement sensor Download PDFInfo
- Publication number
- CN110411328A CN110411328A CN201910745440.2A CN201910745440A CN110411328A CN 110411328 A CN110411328 A CN 110411328A CN 201910745440 A CN201910745440 A CN 201910745440A CN 110411328 A CN110411328 A CN 110411328A
- Authority
- CN
- China
- Prior art keywords
- electrical connector
- displacement sensor
- magnetostrictive displacement
- underwater electrical
- steel pipe
- 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.)
- Pending
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/003—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring position, not involving coordinate determination
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
The present invention provides a kind of magnetostrictive displacement sensors, including underwater electrical connector and underwater electrical connector mounting plate, wherein: the watertight contact is separately connected seal casinghousing and threading cabin end cap by being threadably mounted on underwater electrical connector mounting plate at left and right sides of underwater electrical connector mounting plate；Watertight contact, underwater electrical connector mounting plate, seal casinghousing and threading cabin end cap form seal chamber；Waveguide circuit device is provided in the seal chamber, waveguide circuit device is electrically connected to underwater electrical connector.The present invention is high pressure resistant, small in size, contactless, precision is high, failure rate is low, can be used for a long time in the presence of a harsh environment.The present invention designs seal chamber, waterproof performance is realized, relative to circuit board and waveguide of traditional bubble in oil, magnetostrictive displacement sensor long service life of the invention；Magnetostrictive displacement sensor of the invention is to be individually encapsulated, and using high pressure resistant underwater electrical connector, dismounts, is easy to maintenance.
Description
Technical field
The present invention relates to deep-sea detection fields, and in particular, to a kind of magnetostrictive displacement sensor.
Background technique
Magnetostrictive displacement sensor is answered using magnetostriction principle, by two different magnetic field intersection generation one
Become pulse signal to accurately measure position.Measuring cell is a waveguide, and the sensing element in waveguide is by special
Made of magnetostriction materials.Measurement process is to generate current impulse in the electronic room by sensor, and the current impulse is in waveguide
Transmission in pipe when the magnetic field and covers on waveguide as change in location to generate a circumferential magnetic field outside waveguide
When the magnetic field intersection that movable magnet ring generates, the mechanical wave impulse of a strain can be generated due to magnetostrictive effect, in waveguide
Signal, this is strained mechanical wave pulse signal and is transmitted with fixed speed of sound, and quickly detected by electronic room.
Application No. is 200920058144.7 utility model patents to disclose magnetic in civil engineering machine excavator accessory
Telescopic displacement sensor hydraulic cylinder is caused, is made of hydraulic cylinder and magnetostrictive displacement sensor, magnetostrictive displacement sensor
Including magnetostrictive waveguide pipe, protective case, sensor, permanent magnet, sensor connection signal processing circuit interface, hydraulic cylinder
With the sealing ring of magnetostrictive displacement sensor connector, using sealing material made of fluorubber and polytetrafluoroethylblended blended technology
Material, and IP68 waterproof connector add vulcanized joint, can bear the pressure of 25Mpa or more, solve magnetostrictive displacement sensor
Hydraulic cylinder is in deep ocean work the problem of seawater corrosion sealing；Common displacement of the lines is substituted using magnetostrictive displacement sensor to pass
Sensor, antipollution is good, for ease of maintenaince, can bear the environment of high temperature, high pressure and high oscillation.But there is following lack in above-mentioned patent
Fall into: the magneto strictive sensor circuit board etc. that above-mentioned patent uses be in itself it is non-water-tight, need to be mounted on and need displacement
Inside hydraulic cylinder and oil-filled form realizes pressure resistance, and circuit board and waveguide etc. steep in oil, and service life ratio is in air
Using short；And add vulcanization using IP68 waterproof connector, and it can only be destroyed when connector goes wrong, can not dismantle and replace, pressure resistance
Grade is not high.Once in addition displacement sensor needs replacing, need to dismantle cylinder body, will affect the operation function of cylinder body itself.
Summary of the invention
For the defects in the prior art, the object of the present invention is to provide a kind of magnetostrictive displacement sensors.
A kind of magnetostrictive displacement sensor provided according to the present invention, including underwater electrical connector and underwater electrical connector installation
Plate, in which:
The watertight contact is by being threadably mounted on underwater electrical connector mounting plate, underwater electrical connector mounting plate or so two
Side is separately connected seal casinghousing and threading cabin end cap；
Watertight contact, underwater electrical connector mounting plate, seal casinghousing and threading cabin end cap form seal chamber；
Waveguide circuit device is provided in the seal chamber, waveguide circuit device is electrically connected to underwater electrical connector.
Preferably, it is tightly connected between the threading cabin end cap and underwater electrical connector mounting plate by sealing ring.
Preferably, the seal casinghousing includes control panel pneumatic shell and stainless-steel pipe, in which:
Stainless-steel pipe, control panel pneumatic shell, underwater electrical connector mounting plate successively sealing welding,
Stainless-steel pipe, control panel pneumatic shell, the inside connection of underwater electrical connector mounting plate.
Preferably, the end of the stainless-steel pipe further includes steel pipe capping, and steel pipe capping and stainless-steel pipe hot melt connect
It connects.
Preferably, the waveguide circuit device includes waveguide steel wire and circuit control panel, in which:
Waveguide steel wire and circuit control panel are welded to connect, and waveguide steel wire is arranged in the stainless-steel pipe, circuit control
Plate is fixed in control panel pneumatic shell.
Preferably, the stainless-steel pipe is in long strip, and the internal diameter of the control panel pneumatic shell is greater than stainless-steel pipe
Internal diameter.
Preferably, the waveguide steel wire is not contacted with the stainless-steel pipe.
Preferably, threaded connection hole is provided on the underwater electrical connector mounting plate.
Preferably, the stainless-steel pipe and threading cabin end cap coaxial arrangement.
A kind of magnetostrictive displacement sensor for ROV hydraulic compensating device provided by the invention, including ROV compensation hydraulic
Device and magnetostrictive displacement sensor as described above, in which: magnetostrictive displacement sensor is mounted on the hydraulic benefit of the ROV
It repays on the end cap of device.
Compared with prior art, the present invention have it is following the utility model has the advantages that
1, the present invention is high pressure resistant, small in size, contactless, precision is high, failure rate is low, can make for a long time in the presence of a harsh environment
With.
2, present invention design seal chamber, realizes waterproof performance, relative to circuit board and waveguide of traditional bubble in oil,
Magnetostrictive displacement sensor long service life of the invention；
3, magnetostrictive displacement sensor of the invention is to be individually encapsulated, using high pressure resistant underwater electrical connector, dismounting, maintenance
It is convenient.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is the cross-sectional view of magnetostrictive displacement sensor；
Fig. 2 is the structural schematic diagram of magnetostrictive displacement sensor；
Fig. 3 is the perspective view of the explosion of magnetostrictive displacement sensor；
Fig. 4 is the structural schematic diagram of the magnetostrictive displacement sensor for ROV hydraulic compensating device.
In figure:
The capping of 1- steel pipe
2- stainless-steel pipe
3- control panel pneumatic shell
4- underwater electrical connector mounting plate
5- threads cabin end cap
6- waveguide steel wire
7- circuit control panel
8- sealing ring
9- underwater electrical connector
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, several changes and improvements can also be made.These belong to the present invention
Protection scope.
A kind of magnetostrictive displacement sensor for ROV hydraulic compensating device mentioned by this patent, when use are desirable
Be mounted on ROV hydraulic compensating device, be displaced with the oil level of precise measurement compensator, it can be determined that the hydraulic system of ROV it is hydraulic
Situations such as oil and the compensation oil of electrical system are with the presence or absence of leakage, so that operator can accurately understand the system work shape of ROV
Condition.Magnetostrictive displacement sensor is simple and reliable for structure, is much verified in various industries, in use in the hydraulic benefit of ROV
Before repaying device, in order to be directly used in deep-sea, sensor pressure-resistance structure has been designed and manufactured, internal all components have been carried out
Construction packages, and inner waveguide steel wire and circuit control panel be optimized；Have high pressure resistant, small in size, contactless, smart
The features such as degree is high, failure rate is low, can be used for a long time in the presence of a harsh environment.The equipment can be from compensator under easy removal
Come, the basic function without influencing compensator.
Fig. 1 to Fig. 3 is the structural schematic diagram of the invention patent, is by including steel pipe capping 1, stainless-steel pipe 2, control panel
Pneumatic shell 3, underwater electrical connector mounting plate 4 thread cabin end cap 5, and waveguide steel wire 6, circuit control panel 7, sealing ring 8, watertight patches
Part 9.Wherein steel pipe capping 1 and stainless-steel pipe 2 are waveguide steel wire 6 and control circuit board 7 by welding together with directly hot melt
Weld together, control circuit board 7 is fixed together by copper post and screw with control panel pneumatic shell 3.Complete control circuit board
After 7 is fixed, so that it may be melted together stainless-steel pipe 2 and 3 sweating heat of control panel pneumatic shell.4 He of underwater electrical connector mounting plate
It heats and is integrated after 3 close-fitting of control panel pneumatic shell.After installing more than completing, watertight contact 9 is by being threadably mounted at water
Touch on plug-in unit mounting plate 4.Later, all bonding wires are completed, threading cabin end cap 5 is passed through into screw and underwater electrical connector mounting plate 4
Be fixed together, between pass through end cap seal o type circle 8 complete sealing.After completing above step, that is, complete the magnetostriction position
The assembly of displacement sensor can be mounted on corresponding hydraulic compensating device by 2 through-holes on underwater electrical connector mounting plate 4 later
On end cap.
Underwater electrical connector 9 plays the role of power input, sealing and pressure resistance, after voltage input, built in control circuit board 7
Microprocessor can be inputted with Width funtion, have the function of driving pulse transmitting, by sending driving pulse, 6 periphery of waveguide steel wire
Rotating excitation field is generated, the position magnet being mounted on compensator ontology at this time generates a fixed magnetic field, passes through control circuit board 7
After processor detection, analog or digital signal is exported after completing signal acquisition, processing, the displacement of compensator oil level can be completed
Measurement, steel pipe capping 1, stainless-steel pipe 2, control panel pneumatic shell 3, underwater electrical connector mounting plate 4 and threading cabin end cap 5 play resistance to
Pressure and fixed effect.Data can be issued submersible after completing displacement signal acquisition by this magnetostrictive displacement sensor
Control system, so that submersible be helped to understand the accurate oil level of hydraulic compensating device, oil level calibration can shift to an earlier date complete in basin test
At magneto strictive sensor is fixed on the hydraulic compensating device shell that need to measure displacement by 2 screws, reference can be made to Fig. 4.
Magnetostrictive displacement sensor of the invention is individually encapsulated, and inside is normal pressure, and outside is pressure-resistance structure, magnetostriction
The service life of displacement sensor is as service life in air, since sensor itself does not need pressure resistance, entirely
Structure is even more than the compressive resistance (and material type selecting is related with design) of 110MPa.Using high pressure resistant underwater electrical connector, pressure resistance
Grade can pass through tool easy removal up to 140MPa；Present invention can apply to multiple and different dresses for needing displacement
It sets, is one independently of the structural body except device, dismounting is very convenient, it is only necessary to which fixation can be completed in two M4 screws, not
It needs to carry out any change to the device of displacement, either maintenance or replacement is all very convenient.In addition, the present invention can be simultaneously
Realize number and analog data transmissions.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make a variety of changes or modify within the scope of the claims, this not shadow
Ring substantive content of the invention.In the absence of conflict, the feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (10)
1. a kind of magnetostrictive displacement sensor, which is characterized in that including underwater electrical connector and underwater electrical connector mounting plate,
In:
The watertight contact is divided at left and right sides of underwater electrical connector mounting plate by being threadably mounted on underwater electrical connector mounting plate
It Lian Jie not seal casinghousing and threading cabin end cap；
Watertight contact, underwater electrical connector mounting plate, seal casinghousing and threading cabin end cap form seal chamber；
Waveguide circuit device is provided in the seal chamber, waveguide circuit device is electrically connected to underwater electrical connector.
2. magnetostrictive displacement sensor according to claim 1, which is characterized in that the threading cabin end cap and watertight connect
It is tightly connected between plug-in unit mounting plate by sealing ring.
3. magnetostrictive displacement sensor according to claim 1, which is characterized in that the seal casinghousing includes control panel
Pneumatic shell and stainless-steel pipe, in which:
Stainless-steel pipe, control panel pneumatic shell, underwater electrical connector mounting plate successively sealing welding,
Stainless-steel pipe, control panel pneumatic shell, the inside connection of underwater electrical connector mounting plate.
4. magnetostrictive displacement sensor according to claim 3, which is characterized in that the end of the stainless-steel pipe is also
It is covered including steel pipe, steel pipe capping and stainless-steel pipe hot-melt adhesive paste.
5. magnetostrictive displacement sensor according to claim 3, which is characterized in that the waveguide circuit device includes wave
Lead steel wire and circuit control panel, in which:
Waveguide steel wire and circuit control panel are welded to connect, and waveguide steel wire is arranged in the stainless-steel pipe, and circuit control panel is solid
It is scheduled in control panel pneumatic shell.
6. magnetostrictive displacement sensor according to claim 3, which is characterized in that the stainless-steel pipe is in strip
Shape, the internal diameter of the control panel pneumatic shell are greater than the internal diameter of stainless-steel pipe.
7. magnetostrictive displacement sensor according to claim 5, which is characterized in that the waveguide steel wire with it is described stainless
Steel steel pipe does not contact.
8. magnetostrictive displacement sensor according to claim 1, which is characterized in that on the underwater electrical connector mounting plate
It is provided with threaded connection hole.
9. magnetostrictive displacement sensor according to claim 3, which is characterized in that the stainless-steel pipe and threading cabin
End cap coaxial arrangement.
10. a kind of magnetostrictive displacement sensor for ROV hydraulic compensating device, which is characterized in that including ROV hydraulic compensating device
With such as described in any item magnetostrictive displacement sensors of claim 1-9, in which: magnetostrictive displacement sensor is mounted on institute
On the end cap for stating ROV hydraulic compensating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910745440.2A CN110411328A (en) | 2019-08-13 | 2019-08-13 | Magnetostrictive displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910745440.2A CN110411328A (en) | 2019-08-13 | 2019-08-13 | Magnetostrictive displacement sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110411328A true CN110411328A (en) | 2019-11-05 |
Family
ID=68367214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910745440.2A Pending CN110411328A (en) | 2019-08-13 | 2019-08-13 | Magnetostrictive displacement sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN110411328A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000186953A (en) * | 1998-12-22 | 2000-07-04 | Miyairi Valve Seisakusho:Kk | Floating type level gauge |
| CN201407228Y (en) * | 2009-06-05 | 2010-02-17 | 王肇智 | Magnetostrictive displacement transducer hydraulic cylinder |
| CN103486958A (en) * | 2013-09-30 | 2014-01-01 | 湖南宇航科技有限公司 | Magnetostrictive displacement sensor and tensioning mounting method of waveguide wire thereof |
| CN103956796A (en) * | 2014-05-16 | 2014-07-30 | 南通中国科学院海洋研究所海洋科学与技术研究发展中心 | Underwater direct-current power supply |
| CN105674867A (en) * | 2016-01-21 | 2016-06-15 | 中国石油大学(北京) | Sealing device and method of magnetic induced shrinkage or elongation displacement sensor for underwater high pressure |
| CN206311174U (en) * | 2016-12-29 | 2017-07-07 | 中国科学院沈阳自动化研究所 | Deep-sea liquid level detecting sensor |
| CN208780116U (en) * | 2018-08-29 | 2019-04-23 | 格鲁克（天津）工业科技有限公司 | A kind of magnetostrictive displacement sensor not influenced vulnerable to grease stain |
| CN208968466U (en) * | 2018-11-30 | 2019-06-11 | 深圳市斯铭威科技有限公司 | A kind of high-precision magnetostrictive displacement sensor |
-
2019
- 2019-08-13 CN CN201910745440.2A patent/CN110411328A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000186953A (en) * | 1998-12-22 | 2000-07-04 | Miyairi Valve Seisakusho:Kk | Floating type level gauge |
| CN201407228Y (en) * | 2009-06-05 | 2010-02-17 | 王肇智 | Magnetostrictive displacement transducer hydraulic cylinder |
| CN103486958A (en) * | 2013-09-30 | 2014-01-01 | 湖南宇航科技有限公司 | Magnetostrictive displacement sensor and tensioning mounting method of waveguide wire thereof |
| CN103956796A (en) * | 2014-05-16 | 2014-07-30 | 南通中国科学院海洋研究所海洋科学与技术研究发展中心 | Underwater direct-current power supply |
| CN105674867A (en) * | 2016-01-21 | 2016-06-15 | 中国石油大学(北京) | Sealing device and method of magnetic induced shrinkage or elongation displacement sensor for underwater high pressure |
| CN206311174U (en) * | 2016-12-29 | 2017-07-07 | 中国科学院沈阳自动化研究所 | Deep-sea liquid level detecting sensor |
| CN208780116U (en) * | 2018-08-29 | 2019-04-23 | 格鲁克（天津）工业科技有限公司 | A kind of magnetostrictive displacement sensor not influenced vulnerable to grease stain |
| CN208968466U (en) * | 2018-11-30 | 2019-06-11 | 深圳市斯铭威科技有限公司 | A kind of high-precision magnetostrictive displacement sensor |
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Legal Events
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191105 |
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| RJ01 | Rejection of invention patent application after publication |