CN209624492U - A kind of novel magnetic striction wave guide scanning sensor - Google Patents
A kind of novel magnetic striction wave guide scanning sensor Download PDFInfo
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- CN209624492U CN209624492U CN201920225980.3U CN201920225980U CN209624492U CN 209624492 U CN209624492 U CN 209624492U CN 201920225980 U CN201920225980 U CN 201920225980U CN 209624492 U CN209624492 U CN 209624492U
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Abstract
The utility model relates to a kind of failure detectors, more particularly to a kind of novel magnetic striction wave guide scanning sensor, including sensor outer housing, flexible coil, encoder, stand connection I, stand connection II, cage connection part I, cage connection part II, coil floor and cage connection part, the stand connection I, cage connection part and stand connection II are fixedly connected sequentially；The cage connection part II is fixedly connected on one end on the inside of stand connection I and stand connection II；The cage connection part I is fixedly connected on the other end on the inside of stand connection I and stand connection II.It is equipped with the flexible coil that can carry out length adjustment inside the utility model, can be adapted for various sizes of pipeline, storage tank or plate and use, structure is simple, small in size, at low cost, conversion efficiency is high, unlimited tested construction material has high efficiency, inexpensive feature.
Description
Technical field
The utility model relates to a kind of failure detectors, and in particular to one kind is large-scale for industrial pipeline, storage tank and plate etc.
The magnetic striction wave guide failure detector of industrial structure flaw detection is sensed more particularly to a kind of novel magnetic striction wave guide scanning
Device.
Background technique
Pipeline, storage tank, plate etc. are widely used in the industrial production.Only by taking industrial pipeline as an example: by 2017, in
State's oil-gas pipeline carrier rapidly develops, and total kilometrage is up to 120,000 kilometers.But due to severe working environment and for a long time
Work online, the large scale industries structure such as industrial pipeline, storage tank and plate be easy to appear crackle, corrosion the defects of, cause safety it is hidden
Suffer from.Corresponding measure is taken by detecting defect, economic benefit can be improved, avoid accident.Therefore, to industrial pipeline, storage
The large scale industries such as tank and plate structure is periodically carried out non-destructive testing to be of great significance with on-line monitoring for a long time.
Ultrasonic detecting technology is the detection technique that frequency of usage highest, application range are most wide in current field of non destructive testing.
According to the type of ultrasonic wave, ultrasound detection is divided into bulk wave detection and Guided waves.Compared with other ultrasonic detecting technologies, guided wave inspection
Survey method have the advantage that (1) guided wave in communication process by the constraint of dielectric boundaries, energy decay along propagation path it is small,
Therefore it may be implemented to detect over long distances；(2) supersonic guide-wave sound field energy 100% covers waveguide sections, it can be found that detection range
The defect of interior any position；(3) wave structure of guided wave is complex, corresponding wave structure can be selected by scheme control, to not
The defect of same type is identified.
Common guided wave detection technology mainly has electromagnetic ultrasonic guide wave technology, piezoelectric supersonic technology and magnetostrictive technology three
Kind.Electromagnetic ultrasonic guide wave technology non-contact measurement is not necessarily to couplant, but that there are conversion efficiency is low, can only detect metal material
Deficiency.Piezoelectric supersonic guided wave technology and the conversion efficiency of magnetic striction wave guide technology are high, can be realized long range defects detection.But
In structure, piezoelectricity guided wave sensor needs fixture, and structure is complicated, volume is big, at high cost.
Magnetic striction wave guide detection technique is increasingly becoming a research hotspot as a kind of efficiently quick detection means.
Currently, MsSR3030R long range ultrasonic guided wave detecting system, GW-1000 long range magnetic striction wave guide detection system etc. are
Defects detection and health monitoring applied to various industrial tubular elements.But since sensor ring is wound on pipeline external surface, pass
The magnetic striction wave guide detection technique of system is only applicable to pipeline, needs plate type sensor to object detections such as plate, storage tanks.It is existing
The coil length of detecting sensor is mostly regular length in technology, can not be suitable for various sizes of duct board and use.
Utility model content
The purpose of the utility model is to provide a kind of novel magnetic striction wave guide scanning sensor, equipped with can be grown
The flexible coil adjusted is spent, can be adapted for various sizes of pipeline, storage tank or plate and use, structure is simple, small in size, cost
Low, conversion efficiency is high, unlimited tested construction material, has high efficiency, inexpensive feature.
The purpose of this utility model is achieved through the following technical solutions:
A kind of novel magnetic striction wave guide scanning sensor, including sensor outer housing, flexible coil, stand connection I,
Stand connection II, cage connection part I, cage connection part II, coil floor, cage connection part and coiler, the bracket connect
Fitting I, cage connection part and stand connection II are fixedly connected sequentially；The cage connection part II is fixedly connected on bracket connection
One end on the inside of part I and stand connection II；The cage connection part I is fixedly connected on stand connection I and stand connection
The other end on the inside of II；It is respectively fixedly connected with a sensor outer housing on the inside of the cage connection part II and cage connection part I,
Two sensor outer housings are all located between stand connection I and stand connection II；The coil floor is fixedly connected on shell
On the groove of II outer surface of connector；One end of the flexible coil is fixedly connected on coil floor；The flexible coil
One end is fixedly connected and is wrapped on coiler；The coiler is mounted on the circle of the sensor outer housing on the inside of cage connection part I
In cylindrical groove.
The novel magnetic striction wave guide scanning sensor of described one kind further includes encoder；The encoder is mounted on shell
In the cylinder shape groove of II inner sensors shell of connector.
The novel magnetic striction wave guide scanning sensor of described one kind further includes magnetostrictive tapes；The magnetostrictive tapes are viscous
It is attached to surface of test piece.
The novel magnetic striction wave guide scanning sensor of described one kind further includes couplant；The magnetostrictive tapes pass through coupling
Mixture is pasted onto surface of test piece.
The magnetostrictive tapes use the iron cobalt band of premagnetization.
The flexible coil includes tortuous coil and flexible coil band；The complications coil is fixedly connected on flexible coil band
On；The flexible coil band is equipped with coil interface, tortuous coil connecting line circle interface；One end of the flexible coil band is fixed
It is connected on coiler；The other end of the flexible coil band is fixedly connected on coil floor, and coil interface is fixedly connected on
On coil floor.
The flexible coil band is made of polyimides or polyester film.
The flexible coil band is equipped with encoder fixation hole；The encoder interfaces of the encoder are pierced by encoder and fix
Hole is simultaneously connected by connecting line with data display equipment.
The novel magnetic striction wave guide scanning sensor of described one kind further includes idler wheel；There are four the idler wheel is set；It is described
The left and right sides of the front end stand connection I and the left and right sides of the rear end stand connection II are rotatably assorted connection one respectively and roll
Wheel.
The coiler includes coiler shell, clockwork spring and spool；Coiler shell is fixedly connected on cage connection
In the cylinder shape groove of sensor outer housing on the inside of part I；The spool is connected to the middle-end of coiler enclosure interior；The clockwork spring
The inner end of spring is fixedly connected on spool, and the outer end of clockwork spring is fixedly connected with flexible coil band and is inserted into coiler shell
The one end in portion.
The model E6A2-CW3C 500P/R Omron profile encoder 25MM of the encoder.
The utility model has the following beneficial effects: the magnetostrictive ultrasonic guided wave scanning sensing that one kind of the utility model is novel
Device, a kind of novel magnetic striction wave guide scanning sensor can be adapted for equipped with the flexible coil that can carry out length adjustment
Various sizes of pipeline, storage tank or plate use；It is internally provided with the rolling convenient for being movably walking on the test specimens such as pipeline or plate
Wheel, convenient for improving scanning effect；The utility model has the advantages of simple structure, small in size, at low cost, and conversion efficiency is high, unlimited tested structure
Part material has high efficiency, inexpensive feature.
Increase encoder inside the utility model, is imaging acquisition positional number by being used cooperatively for encoder and idler wheel
According to information can also being integrated by host computer internal processes, will test signal and be plotted as two dimensional image, not only testing result is aobvious
Show more intuitive, and can distinguish, identify multiple defects on same section；It can promote magnetic striction wave guide non-destructive testing
Technology ensures industrial production safe operation, improves warp in the application in the large scale industries structure detection such as pipeline, storage tank and plate field
Ji benefit.
Compared with prior art, the utility model has the advantage that
1. the utility model is not necessarily to surround test specimen when detecting, compared with traditional magnetostrictive guided-wave sensor,
Suitable for test specimens such as plate, storage tanks, the application field of magnetic striction wave guide detection technique has been expanded.
2. regulating winding length is suitable for various sizes of duct board.
3. being equipped with the wheeled construction of four rolling, it is convenient for scanning.
4. can determine defect in the position of pipeline circumferential direction and same compared with traditional magnetostrictive guided-wave sensor
One section defects count.
It can be imaging acquisition position data 5. increasing encoder.
6. increasing magnetostrictive tapes, conversion efficiency is effectively improved.
Detailed description of the invention
The overall structure diagram of the utility model when Fig. 1
Fig. 2 is the partial structurtes left view of the utility model；
Fig. 3 is the partial structurtes right view of the utility model；
Fig. 4 is the local structure top view of the utility model；
Fig. 5 is the partial structural diagram one of the utility model；
Fig. 6 is the partial structural diagram two of the utility model；
Fig. 7 is the structural schematic diagram of the utility model inner flexible coil；
Fig. 8 is the structural schematic diagram of coiler inside the utility model.
In figure: flexible coil 1；Tortuous coil 1-1；Flexible coil band 1-2；Coil interface 1-3；Encoder 2；Bracket connection
Part I3；Stand connection II4；Cage connection part I5；Cage connection part II 6；Coil floor 7；Cage connection part 8；Coiler 9；
Coiler shell 9-1；Clockwork spring 9-2；Spool 9-3；Magnetostrictive tapes 10；Couplant 11；Test specimen 12；Idler wheel 13.
Specific embodiment
1-8 is described in further detail the utility model with reference to the accompanying drawing.
Specific embodiment 1:
As shown in figures 1-8, a kind of novel magnetic striction wave guide scanning sensor, including sensor outer housing, flexible coil
1, stand connection I3, stand connection II4, cage connection part I5, cage connection part II 6, coil floor 7, cage connection part 8
With coiler 9, it is characterised in that: the stand connection I3, cage connection part 8 and stand connection II4 are fixedly connected sequentially；
The cage connection part II 6 is fixedly connected on one end on the inside of stand connection I3 and stand connection II4；The cage connection
Part I5 is fixedly connected on the other end on the inside of stand connection I3 and stand connection II4；The cage connection part II 6 and shell
Be respectively fixedly connected with a sensor outer housing on the inside of connector I5, two sensor outer housings be all located at stand connection I3 and
Between stand connection II4；The coil floor 7 is fixedly connected on the groove of II 6 outer surface of cage connection part；The flexibility
One end of coil 1 is fixedly connected on coil floor 7；One end of the flexible coil 1 is fixedly connected and is wrapped in coiler 9
On；The coiler 9 is mounted in the cylinder shape groove of the sensor outer housing on the inside of cage connection part I5.For to flexible coil
1 winding or expansion is detected a flaw convenient for adjusting the length for changing flexible coil 1 and being unfolded to be suitable for different test specimens 12
It is used when scanning.
The novel magnetic striction wave guide scanning sensor of described one kind further includes encoder 2；The encoder 2 is mounted on outer
In the cylinder shape groove of II 6 inner sensors shell of shell connector.
The novel magnetic striction wave guide scanning sensor of described one kind further includes couplant 11；The magnetostrictive tapes 10 are logical
Overcoupling agent 11 is pasted onto 12 surface of test specimen.
The magnetostrictive tapes 10 use the iron cobalt band of premagnetization.
The novel magnetic striction wave guide scanning sensor of one kind of the utility model, when applying when carrying out flaw detection scanning,
It is uniformly coated with couplant 11 on test specimen 12, then magnetostrictive tapes 10 are sticked on couplant 11, and is viscous by adhesive tape
Patch is fixed, and the 2-3 that rubbed on magnetostrictive tapes 10 with magnet circle completes the DC bias magnetic field that the direction of magnetization can be generated after magnetizing,
Flexible coil 1 is covered on magnetostrictive tapes 10, flexible coil 1 and encoder 2 are then respectively communicated with power supply and is opened, and
Information is integrated by host computer internal processes and is realized, host computer is needed using two Gen Leimo connecting lines.4 cores do not connect first thunder
Wiring is that highpowerpulse alternating current is transmitted to flexible coil 1, according to right-hand screw rule, generates flexible coil 1 vertically
The alternating magnetic field of current direction, the bigoted magnetic field of direct current that magnetized magnetostrictive tapes 10 can generate the direction of magnetization, when two magnetic fields are hung down
When straight, meeting excitement of torsional guided wave, guided wave is propagated in test specimen 12 to be measured, is encountered defect part return, is partially continued to propagate.It returns
Guided wave vibrates test specimen 12 to be measured, drives magnetostrictive tapes 10 to vibrate by couplant 11, is received, be converted by scanning sensor
Electric signal, by thunder, 4 core connecting lines do not send host computer to.6 core connecting lines are not on connection scanning sensor to another thunder
Encoder 2 and host computer send the mobile location information of the mileage axis of encoder 2 to host computer.The idler wheel of scanning sensor
The mileage axis of 13 connection encoders 2, the movement on test specimen 12 to be measured of idler wheel 13 can determine one according to the distance that idler wheel 13 is walked
Circumferential position information.Inside host computer, two information are integrated into two dimensional image.The knot that traditional magnetic striction wave guide obtains
Fruit is a direction of propagation distance-peak image.After encoder 2 is added in novel magnetic striction wave guide, propagation can be drawn out
Direction distance-scanning direction distance, the size of defect will be indicated by shade.Such as test pipeline, from pipeline circumferential direction
Circumferential position information when carrying out acoustic wave excitation and reception in a certain local angle one by one, and recording excitation and receive, it is final whole
One 0-360 ° of B that pipeline is circumferentially unfolded of synthesis sweeps image, to realize to pipeline all standing circumferential direction scanning
Method.
Specific embodiment 2:
As shown in figures 1-8, the flexible coil 1 includes complications coil 1-1 and flexible coil band 1-2；The complications coil
1-1 is fixedly connected on flexible coil band 1-2；The flexible coil band 1-2 is equipped with coil interface 1-3, and tortuous coil 1-1 connects
Meet coil interface 1-3；The flexible coil is fixedly connected on coiler 9 with one end of 1-2；The flexible coil is with 1-2's
The other end is fixedly connected on coil floor 7, and coil interface 1-3 is fixedly connected on coil floor 7.Tortuous coil 1-1 connection
After power supply and unlatching, the alternating magnetic field in perpendicular magnetization direction is generated under the excitation of high-power alternating impulse, in direct current biasing magnetic
Under field and alternating magnetic field collective effect, 10 surface of magnetostrictive tapes generates torsional deformation, forms wave source, drives test specimen 12 to be measured
Surface particle generates twisting vibration, and nearby particle follows vibration, excitement of torsional guided wave for drive；The complications coil 1-1 is used
500kHz complications coil, excitation ultrasound guided wave, adjacent wires spacing are the half-wavelength of supersonic guide-wave, and wavelength is counted by formula λ=c/f
It calculates, finding out velocity of wave c according to the characteristic equation of torsion mode guided wave is 3200m/s, wavelength 6mm；Velocity of wave is corresponding with frequency to close
System can solve according to dynamic elasticity；The utility model transceiver can motivate and receive supersonic guide-wave.
The flexible coil band 1-2 is made of polyimides or polyester film.
The flexible coil band 1-2 is equipped with encoder fixation hole；The encoder interfaces of the encoder 2 are pierced by encoder
Fixation hole is simultaneously connected by connecting line with data display equipment.
Specific embodiment 3:
As shown in figures 1-8, the novel magnetic striction wave guide scanning sensor of described one kind further includes idler wheel 13；The idler wheel
13 set there are four；The left and right sides of the front end the stand connection I3 and the left and right sides of the rear end stand connection II4 turn respectively
The dynamic idler wheel 13 that is cooperatively connected.The setting of idler wheel 13, so that the utility model is easier to when carrying out flaw detection scanning to test specimen 12
It is moved on test specimen 12.The idler wheel 13 of scanning sensor connects the mileage axis of encoder 2, and idler wheel 13 is in test specimen 12 to be measured
Upper movement can determine a circumferential position information according to the distance that idler wheel 13 is walked, and by thunder, connecting line is not transmitted to host computer.It will connect
The defect propagation direction range information received, peak value, scanning direction range information draw out two dimensional image.
The distance of defect range sensor: (velocity of sound * time)/2；
The distance in sensor scanning direction and position: the mileage axis of encoder 2 is mounted on scanning sensor idler wheel 13,
Mileage axis is with the mobile location information that will form scanning direction of idler wheel 13.
Specific embodiment 4:
As shown in figures 1-8, the coiler 9 includes coiler shell 9-1, clockwork spring 9-2 and spool 9-3；Coiler
Shell 9-1 is fixedly connected in the cylinder shape groove of the sensor outer housing on the inside of cage connection part I5；The spool 9-3 is connected to
Middle-end inside coiler shell 9-1；The inner end of the clockwork spring 9-2 is fixedly connected on spool 9-3, clockwork spring 9-2
Outer end be fixedly connected with one end that flexible coil is inserted into inside coiler shell 9-1 with 1-2.Coiler 9 is used for flexible wires
The winding or expansion of circle 1 are visited convenient for adjusting the length for changing flexible coil 1 and being unfolded to be suitable for different test specimens 12
Use when hurting scanning；Flexible coil 1 is entangled on spool 9-3, and the center of spool 9-3 is pulled by clockwork spring 9-2, flexible when pulling
When coil 1, spool 9-3 can be rotated with, and clockwork spring 9-2 is again and again by writing that surpasses all the others, when unclamping flexible coil 1, clockwork spring
9-2 can haul spool 9-3 return, and drive 1 return of flexible coil.
Specific embodiment 5:
As shown in figures 1-8, the model E6A2-CW3C 500P/R Omron profile encoder 25MM of the encoder 2.
Host computer inside the utility model uses EMAT-2000 multifunction electromagnetic reflectoscope.
A kind of couplant model: the dedicated couplant of shear wave of Orisonic coupling.
The working principle of the utility model are as follows:
The novel magnetic striction wave guide scanning sensor of one kind of the utility model, the novel magnetic of one kind of the utility model
It causes flexible guided wave scanning sensor to be uniformly coated with couplant 11 on test specimen 12 when applying when carrying out flaw detection scanning, then will
Magnetostrictive tapes 10 are sticked on couplant 11, and are pasted and fixed by adhesive tape, are rubbed on magnetostrictive tapes 10 with magnet
2-3 circle completes the DC bias magnetic field that the direction of magnetization can be generated after magnetizing, and flexible coil 1 is covered on magnetostrictive tapes 10,
Then flexible coil 1 and encoder 2 are respectively communicated with power supply and opened, and integrated information in fact by host computer internal processes
Existing, host computer is needed using two Gen Leimo connecting lines.4 core connecting lines are not to be transmitted to highpowerpulse alternating current to first thunder
Flexible coil 1 makes flexible coil 1 generate the alternating magnetic field in vertical current direction according to right-hand screw rule, and magnetized mangneto is stretched
Contracting band 10 can generate the bigoted magnetic field of direct current of the direction of magnetization, and when two magnetic fields are vertical, meeting excitement of torsional guided wave, guided wave is to be tested
It is propagated in part 12, encounters defect part return, partially continue to propagate.Returning to guided wave vibrates test specimen 12 to be measured, passes through couplant
11 drive magnetostrictive tapes 10 to vibrate, and are received by scanning sensor, are converted into electric signal, 4 core connecting lines are not sent to by thunder
Host computer.6 core connecting lines are not the encoders 2 and host computer connected on scanning sensor to another thunder, by the mileage of encoder 2
The mobile location information of axis sends host computer to.The idler wheel 13 of scanning sensor connects the mileage axis of encoder 2, and idler wheel 13 exists
Movement can determine a circumferential position information according to the distance that idler wheel 13 is walked on test specimen 12 to be measured.Inside host computer, by two
A information is integrated into two dimensional image.It is that traditional magnetic striction wave guide obtains the result is that a direction of propagation distance-peak image.
After encoder 2 is added in novel magnetic striction wave guide, direction of propagation distance-scanning direction distance can be drawn out, defect it is big
It is small to be indicated by shade.Such as test pipeline, acoustic wave excitation is carried out one by one out of pipeline circumferentially upper a certain local angle
And reception, and circumferential position information when excitation and reception is recorded, finally it is integrated into the 0- that pipeline is circumferentially unfolded
360 ° of B sweeps image, to realize the method to pipeline all standing circumferential direction scanning.It can promote the lossless inspection of magnetic striction wave guide
Survey technology ensures industrial production safe operation, improves in the application in the large scale industries structure detection such as pipeline, storage tank and plate field
Economic benefit.
Certainly, above description is not limitation of the utility model, and the utility model is also not limited to the example above, this skill
The variations, modifications, additions or substitutions that the those of ordinary skill in art field is made in the essential scope of the utility model, also belong to
In the protection scope of the utility model.
Claims (10)
1. a kind of novel magnetic striction wave guide scanning sensor, including sensor outer housing, flexible coil (1), stand connection I
(3), stand connection II (4), cage connection part I (5), cage connection part II (6), coil floor (7), cage connection part (8)
With coiler (9), it is characterised in that: the stand connection I (3), cage connection part (8) and stand connection II (4) are successively
It is fixedly connected；The cage connection part II (6) is fixedly connected on one on the inside of stand connection I (3) and stand connection II (4)
End；The cage connection part I (5) is fixedly connected on the other end on the inside of stand connection I (3) and stand connection II (4)；Institute
It states and is respectively fixedly connected with a sensor outer housing, two sensors on the inside of cage connection part II (6) and cage connection part I (5)
Shell is all located between stand connection I (3) and stand connection II (4)；The coil floor (7) is fixedly connected on shell company
On the groove of fitting II (6) outer surface；One end of the flexible coil (1) is fixedly connected on coil floor (7)；The flexibility
One end of coil (1) is fixedly connected and is wrapped on coiler (9)；The coiler (9) is mounted in cage connection part I (5)
In the cylinder shape groove of the sensor outer housing of side.
2. the novel magnetic striction wave guide scanning sensor of one kind according to claim 1, it is characterised in that: described one kind
Novel magnetic striction wave guide scanning sensor further includes encoder (2)；The encoder (2) is mounted on cage connection part II
(6) in the cylinder shape groove of inner sensors shell.
3. the novel magnetic striction wave guide scanning sensor of one kind according to claim 2, it is characterised in that: described one kind
Novel magnetic striction wave guide scanning sensor further includes magnetostrictive tapes (10)；The magnetostrictive tapes (10) are pasted onto test specimen
(12) surface.
4. the novel magnetic striction wave guide scanning sensor of one kind according to claim 3, it is characterised in that: described one kind
Novel magnetic striction wave guide scanning sensor further includes couplant (11)；The magnetostrictive tapes (10) pass through couplant (11)
It is pasted onto test specimen (12) surface.
5. the novel magnetic striction wave guide scanning sensor of one kind according to claim 4, it is characterised in that: the mangneto
Telescopic band (10) uses the iron cobalt band of premagnetization.
6. the novel magnetic striction wave guide scanning sensor of one kind according to claim 5, it is characterised in that: the flexibility
Coil (1) includes tortuous coil (1-1) and flexible coil band (1-2)；The complications coil (1-1) is fixedly connected on flexible coil
On band (1-2)；The flexible coil band (1-2) is equipped with coil interface (1-3), and tortuous coil (1-1) connects coil interface (1-
3)；One end of the flexible coil band (1-2) is fixedly connected on coiler (9)；The other end of the flexible coil band (1-2)
It is fixedly connected on coil floor (7), coil interface (1-3) is fixedly connected on coil floor (7).
7. the novel magnetic striction wave guide scanning sensor of one kind according to claim 6, it is characterised in that: the flexibility
Coil band (1-2) is made of polyimides or polyester film.
8. the novel magnetic striction wave guide scanning sensor of one kind according to claim 7, it is characterised in that: the flexibility
Coil band (1-2) is equipped with encoder fixation hole；The encoder interfaces of the encoder (2) are pierced by encoder fixation hole and pass through
Connecting line is connected with data display equipment.
9. the novel magnetic striction wave guide scanning sensor of one kind according to claim 8, it is characterised in that: described one kind
Novel magnetic striction wave guide scanning sensor further includes idler wheel (13)；There are four the idler wheel (13) sets；The bracket connection
The left and right sides of part I (3) front end and the left and right sides of stand connection II (4) rear end are rotatably assorted respectively connects an idler wheel
(13)。
10. the novel magnetic striction wave guide scanning sensor of one kind according to claim 9, it is characterised in that: the receipts
Rolling up device (9) includes coiler shell (9-1), clockwork spring (9-2) and spool (9-3)；Coiler shell (9-1) is fixedly connected on
In the cylinder shape groove of sensor outer housing on the inside of cage connection part I (5)；The spool (9-3) is connected to coiler shell (9-
1) internal middle-end；The inner end of the clockwork spring (9-2) is fixedly connected on spool (9-3), the outer end of clockwork spring (9-2)
It is fixedly connected with flexible coil band (1-2) and is inserted into the internal one end of coiler shell (9-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920225980.3U CN209624492U (en) | 2019-02-23 | 2019-02-23 | A kind of novel magnetic striction wave guide scanning sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920225980.3U CN209624492U (en) | 2019-02-23 | 2019-02-23 | A kind of novel magnetic striction wave guide scanning sensor |
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| CN209624492U true CN209624492U (en) | 2019-11-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111537617A (en) * | 2020-04-02 | 2020-08-14 | 广西电网有限责任公司电力科学研究院 | GIS shell defect detection method based on magnetostrictive torsional guided waves |
-
2019
- 2019-02-23 CN CN201920225980.3U patent/CN209624492U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111537617A (en) * | 2020-04-02 | 2020-08-14 | 广西电网有限责任公司电力科学研究院 | GIS shell defect detection method based on magnetostrictive torsional guided waves |
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