CN110207880A - Two dimensional wireless passive sensor is decoupled between multi link formula dimension - Google Patents
Two dimensional wireless passive sensor is decoupled between multi link formula dimension Download PDFInfo
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- CN110207880A CN110207880A CN201910614120.3A CN201910614120A CN110207880A CN 110207880 A CN110207880 A CN 110207880A CN 201910614120 A CN201910614120 A CN 201910614120A CN 110207880 A CN110207880 A CN 110207880A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/16—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force
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Abstract
The invention discloses a kind of multi link formula dimension between decouple two dimensional wireless passive sensor, including sensor load connector, upper support cylinder, top multi link connection plectane, moment of flexure support board, moment of flexure load body, moment of flexure deformation ring, lower part multi link connection plectane, the first torque connection plectane, lower support cylinder, the second torque connection plectane, torque load axis, torque deformation piece, connecting rod, center connection rod set, torque limit rod set and moment of flexure transmission lever.Decoupling two dimensional wireless passive sensor can detect bending force component and torsion force component in bonding force simultaneously between multi link formula dimension of the invention, i.e., carry out structure decoupling to bonding force；And it does not need to be connected into power supply line or data is acquired by wireline interface；It can be applicable to medical domain, human body embedded type sensor orientation, greatly reducing needs after sensor implantation human body to sunken cord in human body or the link of second operation.
Description
Technical field
The invention belongs to decouple two dimensional wireless passive sensing between sensor technical field more particularly to a kind of multi link formula dimension
Device.
Background technique
Sensor be it is a kind of can impression as defined in be measured and according to certain rule be converted into available signal device and
Device is usually made of sensing element and elastic element.Multi-dimension force sensor is that one kind can measure both direction or more simultaneously
The load cell of power and moment information is widely used in the fields such as robot, bioengineering, industrial manufacture, health care.
Two dimension or even multi-dimension force sensor at this stage is broadly divided into resistance-strain type, piezoelectric type, capacitive force transducer,
Its structure is simple, sensitive and precision is higher.The construction of sensor is pasted on the elastic element of certain shapes or with its other party
Method installs strain sensor.When mechanical quantity acts on elastic element, elastic element is deformed, strain sensor
Resistance value changes therewith, change in resistance is then become voltage change output by translation circuit, according to voltage variety
Learn the size of power.
But when sensor is when bearing the combination of distorting stress and bending stress, in the prior art sensor often through
Foil gauge composition bridge is compensated and decoupled, the solution for realizing distorting stress and bending stress is not had in mechanical structure
Coupling ability.
Existing two dimension/multidimensional sensor, since conducting wire must be used to connect foil gauge, even if carrying out information using radio
Transmitting, but electricity contained by battery is limited, therefore it is difficult to realize long-term dynamics monitoring.
Summary of the invention
It is an object of the present invention to provide two dimensional wireless passive sensor is decoupled between a kind of multi link formula dimension, mechanical solution is realized
Coupling, and can be measured to bonding force is formed by with twisting resistance perpendicular to axial bending force, coupling force is solved respectively
In perpendicular to torsional component in axial bending component and coupling force the problem of.
The present invention solves technical problem and adopts the following technical scheme that
The invention has the following beneficial effects: decoupling two dimensional wireless passive sensors between multi link formula of the invention dimension can
The bending force component and torsion force component in bonding force are detected simultaneously, i.e., structure decoupling are carried out to bonding force；And it does not need
It is connected into power supply line or data is acquired by wireline interface；It can be applicable to medical domain, human body embedded type sensor orientation, significantly
It needs to sunken cord in human body after reducing sensor implantation human body or the link of second operation.
Detailed description of the invention
Fig. 1 is the schematic perspective view of decoupling two dimensional wireless passive sensor between multi link formula dimension of the invention.
Fig. 2 is the stereochemical structure cross-sectional view of decoupling two dimensional wireless passive sensor between multi link formula dimension of the invention.
Fig. 3 is the configuration schematic diagram of decoupling two dimensional wireless passive sensor between multi link formula dimension of the invention.
Fig. 4 is the stereochemical structure part disassembly diagram in bending force force sensitive area of the invention
Fig. 5 is the stereochemical structure cross-sectional view in bending force force sensitive area of the invention.
Fig. 6 is twisting resistance force sensitive area stereochemical structure part disassembly diagram of the invention.
Fig. 7 is the stereochemical structure cross-sectional view in twisting resistance force sensitive area of the invention.
The mark in the figure shows: 1- sensor load connector；2- upper support cylinder；3- moment of flexure load body；4- moment of flexure shape
Become ring；5- moment of flexure support board；The top 6- multi link connects plectane；7- copper bead sealing cap with holes；8- moment of flexure transmission lever；9- torque limit
Position bar；The center 10- connecting rod；The center 11- connects rod set；12- torque limits rod set；The lower part 13- multi link connects plectane；14-
First torque connects plectane；15- torque deformation piece；16- torque load axis；17- connecting rod；18- lower support cylinder；19-
Two torques connect plectane；20- copper bead with holes.
Specific embodiment
Technical solution of the present invention is further elaborated below with reference to examples and drawings.
Embodiment 1
It present embodiments provides and decouples two dimensional wireless passive sensor between a kind of multi link formula dimension comprising sensor load
Connector, upper support cylinder, top multi link connect plectane, moment of flexure support board, moment of flexure load body, moment of flexure deformation ring, lower part
Multi link connects plectane, the first torque connection plectane, lower support cylinder, the second torque and connects plectane, torque load axis, torque
Deformation piece, connecting rod, center connection rod set, torque limit rod set and moment of flexure transmission lever；
The sensor load connector 1 is fixed on the top multi link by upper support cylinder 2 and connects plectane 6；?
Moment of flexure support board 5 is fixed between the upper support cylinder 2 and top multi link connection plectane 6；As a kind of realization shape
Formula, offers multiple through-holes along its axis direction on the upper support cylinder 2, and stud passes through the sensor load and connects
First 1, upper support cylinder 2, moment of flexure support board 5 connect plectane 6 with top multi link, by nut by sensor load connector
1, upper support cylinder 2, moment of flexure support board 5 and top multi link connect plectane 6 and are fixed together.
The moment of flexure support board 5 is formed with centre bore, and the upper end shape of the moment of flexure support board 5 along its axis direction
At there is outer chamfer face；The moment of flexure load body 3 includes cylinder and the flange for being formed in the cylinder upper end, the lower end of the cylinder
It being slidably inserted into the centre bore of the moment of flexure support board 5, the junction of the cylinder and flange is provided with transition rings,
Inclined surface is formed in the transition rings.
3 outer cover of moment of flexure load body is equipped with moment of flexure deformation ring 4, and the lower end of the moment of flexure deformation ring 4 is fallen outside with described
The upper end of angular contact, the moment of flexure deformation ring 4 is contacted with the inclined surface of the transition rings, to pass through the moment of flexure load
The movement of body 3 so that the moment of flexure deformation ring 4 deformation occurs, decouple two dimensional wireless passive sensor between sprinkle nozzle dimension to detect
Whether moment of flexure is born, at this point, being pasted with multiple magnetostriction materials on the lateral wall of the moment of flexure deformation ring 4.
It is fixed that the lower part multi link connection plectane 13 connect plectane 19 with the second torque, and in the lower part multi link
It is successively fixed with the first torque connection plectane 14 and lower part from top to bottom between connection plectane 13 and the second torque connection plectane 19
Support cylinder 18；
As a kind of way of realization, multi link connection plectane 13, first in lower part can be sequentially passed through using stud and is turned round
Square connection plectane 14, lower support cylinder 18 connect plectane 19 with the second torque, and lower part multi link is connected plectane by nut
13, the first torque connection plectane 14, lower support cylinder 18 connect plectane 19 with the second torque and are fixed together.
Upper flange portion and lower flange portion are formed on the torque load axis 16, first torque connects under plectane 14
The groove for accommodating the upper flange portion is offered on surface, offers accommodating on the upper surface of the second torque connection plectane 19
The groove in the lower flange portion, and make the upper end of the torque load axis 16 pass through first torque and connect plectane 14, institute
The lower end for stating torque load axis 16 passes through second torque and connects plectane 19, is rotatablely arranged at the first torque connection
Between plectane 14 and the second torque connection plectane 19, at this point, the upper flange portion is set to the first torque connection plectane 14
Groove in, the lower flange portion is set in the groove of second torque connection plectane 19.
The upper end of the connecting rod 17 is fixed in the upper flange portion, the lower end of the connecting rod 17 be fixed on it is described under
In flange portion, and the connecting rod 17 is made to be parallel to the axis of the torque load axis 16；Preferably, the connecting rod 17
Quantity is two, and two connecting rods 17 are uniformly distributed along using the axis of the torque load axis as the cylindrical surface of center line, i.e., two
A connecting rod 17 is spaced 180 ° of settings centered on the axis of torque load axis 16.
First torque connection plectane 14 is fixed in the upper end of the torque deformation piece 15, under the torque deformation piece
The second torque connection plectane 19 is fixed at end, that is to say, that the torque deformation piece 15 is set to first torque and connects
It connects between plectane 14 and the second torque connection plectane 19, and is parallel to the axis of the torque load axis 16；It is highly preferred that passing through
The plane of the center line of the axial line and torque deformation piece 15 of the torque load axis is perpendicular to 15 institute of torque deformation piece
Plane.
The distance between the torque deformation piece 15 and the torque load axis 16 are less than torque load axis and the connection
The sum of the distance between bar 17 and the radius of connecting rod 17, that is to say, that when the torque load axis 16 drives connecting rod 17 to transport
When dynamic, interfered between the connecting rod 17 and torque deformation piece 15, so that torque deformation piece 15 deforms, it is described at this time
Magnetostriction materials are covered on torque deformation piece 15, the torsion born with the deformation detection sensor by magnetostriction materials
Turn power, solves the problems, such as long-term dynamics monitoring.
Preferably, the quantity of the torque deformation piece 15 is two, and two torque deformation pieces 15 are with the torsion
Centered on the axial line of square load axis 16, it is spaced 180 ° of settings.
The torque deformation piece 15 includes being set to the fixed part of two ends in width direction and being set to two fixations
Variant part between portion, the fixed part are fixed on the first torque connection plectane 14 by screw and connect plectane with the second torque
19, multiple circular holes are offered on the variant part, to reduce the rigidity of the variant part, so that the variant part is easily deformed；
In the present embodiment, the quantity of the circular hole is 7, is covered with magnetostriction materials on the variant part at this time, is solved long-term
The problem of dynamic monitoring.
The center that the top multi link connection plectane 6 connects plectane 13 with lower part multi link offers center counterbore
(top multi link connects the center counterbore opening upwards of plectane 6, and Open Side Down for the center counterbore of lower part multi link connection plectane),
Copper bead with holes is provided in the center counterbore, one end of the center connection rod set 11 is connected across the lower part multi link
The bottom wall of the center counterbore of plectane 13, is fixed on copper bead with holes；The upper end of the center connection rod set 11 offers pilot hole, institute
The lower end for stating center connecting rod 10 is slidably disposed in the pilot hole, and the upper end of the center connecting rod 10 passes through
The bottom wall of the center counterbore of the top multi link connection plectane 6, is fixed on copper bead with holes.
Multiple edge counterbores are offered on the periphery of the center counterbore of top multi link connection plectane 6, under described
The periphery of the center counterbore of portion's multi link connection plectane 13 offers multiple edge through-holes, the lower end of the torque limit rod set 12
It is fixed in the edge through-hole, the upper end of torque limit rod set 12 offers pilot hole, under the torque gag lever post 9
End is slidably disposed in the pilot hole of the torque limit rod set 12, and the upper end of the torque gag lever post 9 is across upper
Portion's multi link connects the bottom wall of the edge counterbore of plectane 6, is fixed on copper bead with holes.
6 through-holes, axis of 6 through-holes along the moment of flexure load body 3 are offered on the flange of the moment of flexure load body 3
Line is uniformly distributed；The position of through-hole of the top multi link connection plectane 6 relative to the moment of flexure load body 3 offers logical
Hole, meanwhile, the position on the moment of flexure support board 5 relative to the through-hole of the moment of flexure load body 3 offers through-hole.
Described 8 one end of moment of flexure transmission lever is connected to the lower part multi link connection plectane 13, and the other end passes through the top
Multi link connects through-hole, the through-hole of moment of flexure support board 5 and the through-hole of moment of flexure load body 3 of plectane 6, is connected to the moment of flexure and holds
Power body 3.
Preferably, the first counterbore is offered on the lower part multi link connection plectane 13, is provided in first counterbore
Copper bead with holes, the lower end of the moment of flexure transmission lever 8 pass through the bottom wall (the of the first counterbore of lower part multi link connection plectane 13
Open Side Down for one counterbore), it is fixed on the copper bead with holes；It is highly preferred that the upper end of the moment of flexure transmission lever 8 passes through the moment of flexure
The through-hole of load body 3 is fixed on copper bead with holes.
It is highly preferred that sealing cap is provided on the center counterbore, edge counterbore and the first counterbore, to limit by sealing cap
Copper bead with holes (decouples the short transverse of two dimensional wireless passive sensor) along the vertical direction movement between multi link formula dimension, and institute
Stating can opposite sliding between sealing cap and copper bead with holes.
When decoupling two dimensional wireless passive sensor is by twisting resistance between multi link formula dimension, the moment of flexure component in coupling force is logical
The upper flange portion and lower flange portion for crossing torque load axis 16 pass to the first torque connection plectane 14 with the second torque and connect plectane
19；And the twisting resistance makes torque load axis 16 rotate, further such that 17 driving torque deformation piece 15 of connecting rod is sent out
Change shape, realizes the requirement of 15 single direction stress of torque deformation piece, guarantees to decouple the passive biography of two dimensional wireless between multi link formula dimension
The measurement accuracy of sensor；Magnetostrictive reaction (Villari effect) is generated under the action of the excitation field of application, passes through inspection
Test coil detects its changes of magnetic field, and distorting stress can be obtained.
When decoupling two dimensional wireless passive sensor is by bending component between multi link formula dimension, top multi link connects plectane
6, torque gag lever post 9, center connecting rod 10, center connection rod set 11, torque limit rod set 12 connect plectane with lower part multi link
13 constitute a support construction, and bending force is converted into axial tension and is applied directly in moment of flexure transmission lever 8；When by moment of flexure
When 8 bring pulling force of transmission lever, moment of flexure deformation ring 4 generates deformation, detects bending component with this.
And in the present embodiment, copper bead 20 with holes is centrally disposed in counterbore, edge counterbore and the first counterbore, due to hole
Inside diameter is larger and the opening of outlet port is smaller, therefore constitutes an easy multi link bearing, with this meet it is certain
Activity point of view.
When moment of flexure transmission lever 8 is acted on by torsional component, due to by torque gag lever post 9, center connecting rod 10, center
The position limiting structure that rod set 11 and torque limit rod set 12 form is connected, therefore torsional component does not interfere with moment of flexure deformation ring 4, curved
Rectangle, which becomes on ring 4, covers magnetostriction materials, and the bending component in coupling force will generate stress on magnetostriction materials and answer
Become.Magnetostrictive reaction (Villari effect) is generated under the action of the excitation field of application, it is detected by detection coil
Changes of magnetic field is bent stress.
When bending force is coupled with twisting resistance, the bending force and twisting resistance of coupling make moment of flexure deformation ring 4 and torque deformation piece
15 generate ess-strain simultaneously, and magnetostriction materials generate stress, generate magnetostriction under the action of the excitation field of application
Back wash effect detects its changes of magnetic field by detection coil, it can realizes the joint-detection of bending stress and distorting stress.
The sequencing of above embodiments is not only for ease of description, represent the advantages or disadvantages of the embodiments.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (6)
1. decoupling two dimensional wireless passive sensor between a kind of multi link formula dimension, which is characterized in that including sensor load connector, on
Portion's support cylinder, top multi link connection plectane, moment of flexure support board, moment of flexure load body, moment of flexure deformation ring, lower part multi link connect
Connect plectane, the first torque connection plectane, lower support cylinder, the second torque connection plectane, torque load axis, torque deformation piece,
Connecting rod, center connection rod set, torque limit rod set and moment of flexure transmission lever；
The sensor load connector is fixed on the top multi link by upper support cylinder and connects plectane；On the top
Moment of flexure support board is fixed between support cylinder and top multi link connection plectane；
The moment of flexure support board is formed with centre bore along its axis direction, and the upper end of the moment of flexure support board is formed with outside
Fillet surface；The moment of flexure load body includes cylinder and the flange for being formed in the cylinder upper end, and the lower end of the cylinder is slidably
Ground is inserted in the centre bore of the moment of flexure support board, and the junction of the cylinder and flange is provided with transition rings, the mistake
It crosses on ring and is formed with inclined surface；
Moment of flexure deformation ring is arranged with outside the moment of flexure load body, the lower end of the moment of flexure deformation ring connects with the outer chamfer face
Touching, the upper end of the moment of flexure deformation ring is contacted with the inclined surface of the transition rings；On the lateral wall of the moment of flexure deformation ring
It is pasted with multiple magnetostriction materials；
The lower part multi link connection plectane connect plectane with the second torque and fixes, and connects plectane in the lower part multi link
And second be successively fixed with the first torque connection plectane and lower support cylinder between torque connection plectane from top to bottom；
Upper flange portion and lower flange portion are formed on the torque load axis, the upper end of the torque load axis passes through described first
Torque connects plectane, and the lower end of the torque load axis passes through second torque and connects plectane, is rotatablely arranged at described
First torque connects between plectane and the second torque connection plectane；
The upper end of the connecting rod is fixed in the upper flange portion, and the lower flange portion is fixed in the lower end of the connecting rod
On, the connecting rod is parallel to the axis of the torque load axis；
The first torque connection plectane is fixed in the upper end of the torque deformation piece, and the lower end of the torque deformation piece is fixed on
Second torque connects plectane, and is parallel to the axis of the torque load axis；
The distance between the torque deformation piece and the torque load axis are less than between torque load axis and the connecting rod
The sum of distance and the radius of connecting rod, the torque deformation on piece are covered with magnetostriction materials；
The center that the top multi link connection plectane connects plectane with lower part multi link offers center counterbore, the center
Copper bead with holes is provided in counterbore, one end of the center connection rod set passes through the center of lower part multi link connection plectane
The bottom wall of counterbore is fixed on copper bead with holes；The upper end of the center connection rod set offers pilot hole, the center connecting rod
Lower end is slidably disposed in the pilot hole, and the upper end of the center connecting rod is connected across the top multi link
The bottom wall of the center counterbore of plectane, is fixed on copper bead with holes；
Multiple edge counterbores are offered on the periphery of the center counterbore of top multi link connection plectane, in the lower part Duo Lian
The periphery of the center counterbore of bar connection plectane offers multiple edge through-holes, and the lower end of the torque limit rod set is fixed on described
In edge through-hole, the upper end of the torque limit rod set offers pilot hole, and the lower end of the torque gag lever post is slideably set
It is placed in the pilot hole of the torque limit rod set, and the upper end of the torque gag lever post passes through top multi link and connects plectane
Edge counterbore bottom wall, be fixed on copper bead with holes；
6 through-holes are offered on the flange of the moment of flexure load body, 6 through-holes are uniform along the axis of the moment of flexure load body
Distribution；The position of through-hole of the top multi link connection plectane relative to the moment of flexure load body offers through-hole, described curved
Position on square support board relative to the through-hole of the moment of flexure load body offers through-hole；
Moment of flexure transmission lever one end is connected to the lower part multi link connection plectane, and the other end connects across the top multi link
The through-hole for connecing the through-hole of plectane, the through-hole of moment of flexure support board and moment of flexure load body is connected to the moment of flexure load body.
2. decoupling two dimensional wireless passive sensor between multi link formula dimension according to claim 1, which is characterized in that on described
Multiple through-holes are offered along its axis direction in portion's support cylinder, stud passes through the sensor load connector, top branch
It holds round cylinder, moment of flexure support board and connects plectane with top multi link, it is by nut that sensor load connector, upper support is round
Cylinder, moment of flexure support board connect plectane with top multi link and are fixed together.
3. decoupling two dimensional wireless passive sensor between multi link formula dimension according to claim 1, which is characterized in that double end spiral shell
Bolt sequentially passes through lower part multi link connection plectane, the first torque connection plectane, lower support cylinder and the second torque connection plectane,
Lower part multi link is connected into plectane by nut, the first torque connects plectane, lower support cylinder and the second torque and connects plectane
It is fixed together.
4. decoupling two dimensional wireless passive sensor between multi link formula according to claim 1 dimension, which is characterized in that described the
The groove for accommodating the upper flange portion is offered on the lower surface of one torque connection plectane, second torque connects the upper of plectane
The groove for accommodating the lower flange portion is offered on surface, the upper flange portion is set to the recessed of the first torque connection plectane
In slot, the lower flange portion is set in the groove of the second torque connection plectane.
5. decoupling two dimensional wireless passive sensor between multi link formula dimension according to claim 1, which is characterized in that pass through institute
The plane of the axial line of torque load axis and the center line of torque deformation piece is stated perpendicular to flat where the torque deformation piece
Face.
6. multi link formula sensor according to claim 1, which is characterized in that the torque deformation piece includes being set to width
The variant part spending the fixed part of the end direction Shang Liangge and being set between two fixed parts, the fixed part are fixed by screw
Plectane and the second torque are connected in the first torque and connects plectane, offers multiple circular holes on the variant part, on the variant part
It is covered with magnetostriction materials.
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| CN112033595A (en) * | 2020-08-26 | 2020-12-04 | 东北电力大学 | Central shaft type inter-dimensional decoupling three-dimensional wireless passive sensor |
| CN112067186A (en) * | 2020-08-24 | 2020-12-11 | 东北电力大学 | Tower type series inter-dimensional decoupling wireless passive sensor |
| CN112067187A (en) * | 2020-08-26 | 2020-12-11 | 东北电力大学 | Coupling type three-dimensional decoupling wireless passive sensor |
| CN112082687A (en) * | 2020-08-26 | 2020-12-15 | 东北电力大学 | Inter-dimensional decoupling three-dimensional wireless passive sensor |
| CN112683438A (en) * | 2020-12-30 | 2021-04-20 | 东北电力大学 | Half-shaft type inter-dimension decoupling two-dimensional wireless passive sensor for ball cage |
| CN112729655A (en) * | 2020-12-30 | 2021-04-30 | 东北电力大学 | Straight-tube T-shaped inter-dimensional decoupling three-dimensional wireless passive sensor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112082687A (en) * | 2020-08-26 | 2020-12-15 | 东北电力大学 | Inter-dimensional decoupling three-dimensional wireless passive sensor |
| CN112033595B (en) * | 2020-08-26 | 2021-08-31 | 东北电力大学 | Central shaft type inter-dimensional decoupling three-dimensional wireless passive sensor |
| CN112067187B (en) * | 2020-08-26 | 2021-10-26 | 东北电力大学 | Coupling type three-dimensional decoupling wireless passive sensor |
| CN112683438A (en) * | 2020-12-30 | 2021-04-20 | 东北电力大学 | Half-shaft type inter-dimension decoupling two-dimensional wireless passive sensor for ball cage |
| CN112729655A (en) * | 2020-12-30 | 2021-04-30 | 东北电力大学 | Straight-tube T-shaped inter-dimensional decoupling three-dimensional wireless passive sensor |
| CN112683438B (en) * | 2020-12-30 | 2021-11-16 | 东北电力大学 | Half-shaft type inter-dimension decoupling two-dimensional wireless passive sensor for ball cage |
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