CN213090676U - Magnetostrictive displacement sensor - Google Patents
Magnetostrictive displacement sensor Download PDFInfo
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- CN213090676U CN213090676U CN202020973183.6U CN202020973183U CN213090676U CN 213090676 U CN213090676 U CN 213090676U CN 202020973183 U CN202020973183 U CN 202020973183U CN 213090676 U CN213090676 U CN 213090676U
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Abstract
The utility model discloses a magnetostrictive displacement sensor, this magnetostrictive displacement sensor include that this magnetostrictive displacement sensor includes slip magnet, slider magnet mounting, is used for the sensitive component subassembly, portable fixed card, aviation plug, circuit board mount pad, sealed pad, cylindric shell, end cover, control circuit board that the response slip magnet magnetic force changes. The utility model discloses magnetostrictive displacement sensor is small, can be applied to the measurement of some narrow and small space, volume sight, can block more effectively and avoid external signal interference, and the measurement precision is high.
Description
Technical Field
The utility model relates to a displacement sensor technical field, concretely relates to magnetostriction displacement sensor.
Background
At present, the mounting modes of the magnetostrictive displacement sensor are mainly divided into a built-in type and an external type, wherein the built-in type is mainly mounted inside an oil cylinder, and the external type can be directly mounted on controlled equipment. The external sensor on the market at present has large volume and single measuring mode, is limited by application occasions to a great extent, and cannot smoothly realize measurement under the condition that a displacement sensor with large volume cannot be accommodated. How to design a magnetostrictive displacement sensor to solve the above problems is a technical problem to be solved urgently at present.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a magnetostrictive displacement sensor to solve among the prior art because magnetostrictive displacement sensor is bulky and the limited problem of measurement that leads to.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides a magnetostrictive displacement sensor, which comprises a sliding magnet, a slider magnet fixing piece, a sensitive element assembly for sensing the magnetic force change of the sliding magnet, a movable fixing card, an aviation plug, a circuit board mounting seat, a sealing gasket, a cylindrical shell, an end cover and a control circuit board;
the circuit board mounting seat covers one end opening of the cylindrical shell, the end cover covers the other end opening of the cylindrical shell, the sensitive element assembly is arranged in the cylindrical shell, and the aviation plug is located on the outer side of the cylindrical shell and penetrates through the circuit board mounting seat to be connected with the control circuit board;
the cylindrical shell is provided with a first groove body and a second groove body which are arranged at intervals up and down along the length direction, the lower part of the sliding magnet is movably clamped on the first groove body, the upper part of the movable fixed clamping piece is movably clamped on the second groove body, and the lower part of the movable fixed clamping piece is fixed on a fixed device;
the slider magnet fixing member is used for fixing the sliding magnet on the moving device. When the sliding magnet reciprocates on the cylindrical shell, the magnetism of the sliding magnet acts on the sensitive element assembly; the sensitive element assembly induces magnetism to generate echo to be transmitted to the control circuit board, the control circuit board converts the echo into a current signal to be transmitted to a client through an aviation plug, and the client determines the relative position of the sliding magnet through a current value so as to calculate the corresponding movement distance.
Furthermore, the sensitive element assembly comprises a sensitive element, a sensitive element support, a copper base, a shielding pipe support and a coil, the sensitive element assembly is arranged inside the cylindrical shell, the control circuit board is connected to one side, far away from the aviation plug, of the circuit board mounting seat, and the sensitive element, the sensitive element support, the copper base and the coil are connected with the control circuit board.
Furthermore, the copper base and the shielding pipe are welded together through silver brazing to achieve a shielding effect, the shielding pipe support is used for fixing the shielding pipe, and the shielding pipe support is made of plastic materials to achieve a supporting and damping effect; the shielding tube extends along the length direction of the cylindrical shell, and the copper base is connected with the control circuit board through M2 screws.
Furthermore, the sensitive element bracket is made of plastic and is connected with the copper base through an M1.6 screw; the sensitive element bracket is connected with the control circuit board through an M1.6 screw.
Furthermore, the shielding tube support is used for fixing one end of the shielding tube, the other end of the shielding tube is fixed on the copper base, and the copper base is connected to the control circuit board.
Furthermore, the magnetostrictive displacement sensor also comprises two sealing gaskets, and the two sealing gaskets are respectively connected between one end of the cylindrical shell and the circuit board mounting seat and between the end cover and the other end of the cylindrical shell in a sealing manner. The sealing gasket plays a role in sealing, so that the cylindrical shell forms a sealing space; the internal sensitive element assembly is prevented from being corroded by external water vapor;
further, the magnetostrictive displacement sensor also comprises a sensitive element shielding case; the sensitive element shielding cover and the control circuit board are fixed together by welding; the sensitive element shielding case is made of copper so as to protect electronic elements on the control circuit board and shield external signal interference.
Further, the slider magnet fixing part is a hinge rod, and the sliding magnet is connected to one end of the hinge rod.
Furthermore, the cylindrical shell is flat and hollow, and comprises a shell body, and shell connecting holes are formed in four corners of the side wall of the shell body in the length direction;
the circuit board mounting seat comprises a flaky circuit board mounting seat body and two protruding connecting pieces, the middle of the circuit board mounting seat body is provided with a plug through hole for inserting the aviation plug, four corners of the circuit board mounting seat body are provided with mounting seat connecting holes matched and connected with the shell connecting holes, and the two protruding connecting pieces are arranged on two sides of the plug through hole to fix the control circuit board.
Further, the lower part of the movable fixing card is fixed on the fixing device through an M5X 25 hexagon socket head cap screw, and the cylindrical shell is made of aluminum alloy materials which play a role in protecting the internal sensitive element assembly.
The utility model has the advantages of as follows:
the utility model discloses magnetostrictive displacement sensor is small, can be applied to the measurement of some narrow and small space, volume sight, and it is also more convenient to use, can block more effectively and avoid external signal interference, and measurement precision is high, and the sensor can work reliably at more in the time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 and fig. 2 are schematic structural views of magnetostrictive displacement sensors provided in embodiments 1 to 7 of the present invention;
fig. 3 is a schematic structural diagram of a cylindrical housing in a magnetostrictive displacement sensor according to embodiment 8 of the present invention;
fig. 4 is a schematic structural diagram of a circuit board mounting seat in a magnetostrictive displacement sensor according to embodiment 8 of the present invention.
In the figure:
1 aviation plug 2 circuit board mounting seat 3 sealing gasket 4 cylindrical shell
5 slider magnet 6 end cover 7 can remove 8 sliding magnet of fixed card
9 control circuit board 10 sensitive element shield cover 11 sensitive element support 12 copper base
13 shield tube 14 shield tube support
41 housing body 42 housing attachment hole 401 first slot 402 second slot
21 circuit board mounting seat body 22 mounting seat connecting hole 23 bulge connecting piece 24 plug through hole
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
The embodiment provides a magnetostrictive displacement sensor, as shown in fig. 1 and 2, the magnetostrictive displacement sensor comprises a sliding magnet 8, a slider magnet fixing piece 5, a sensitive element assembly for sensing the magnetic force change of the sliding magnet 8, a movable fixing card 7, an aviation plug 1, a circuit board mounting base 2, a sealing gasket 3, a cylindrical shell 4, an end cover 6 and a control circuit board 9;
the circuit board mounting seat 2 covers one end opening of the cylindrical shell 4, the end cover 6 covers the other end opening of the cylindrical shell 4, the sensitive element assembly is arranged in the cylindrical shell 4, and the aviation plug 1 is positioned outside the cylindrical shell 4 and penetrates through the circuit board mounting seat 2 to be connected with the control circuit board 9;
the cylindrical shell 4 is provided with a first groove body 401 and a second groove body 402 which are arranged at intervals up and down along the length direction, the lower part of the sliding magnet 8 is movably clamped on the first groove body 401, the upper part of the movable fixed card 7 is movably clamped on the second groove body 402, and the lower part of the movable fixed card 7 is fixed on a fixing device;
the slider magnet fixing piece 5 is used for fixing the sliding magnet 8 on the moving device; when the sliding magnet 8 reciprocates on the cylindrical housing 4, the magnetism of the sliding magnet 8 acts on the sensitive element assembly; the sensitive element assembly induces magnetism to generate echo and transmits the echo to the control circuit board 9, the control circuit board 9 converts the echo into a current signal, the current signal is transmitted to a client through the aviation plug 1, and the client determines the relative position of the sliding magnet 8 through a current value, so that the corresponding movement distance is calculated.
The lower part of the movable fixing card 7 is fixed on a fixing device through an M5 multiplied by 25 hexagon socket head cap screw, and the cylindrical shell 4 is made of aluminum alloy materials for protecting the internal sensitive element assembly.
In the magnetostrictive displacement sensor of the embodiment, the two movable fixing clamping pieces 7 can be clamped on the second groove body of the cylindrical shell 4 at intervals, so that the magnetostrictive displacement sensor can be firmly connected to the fixing device. In the magnetostrictive displacement sensor of this embodiment, most of the components are arranged in the cylindrical shell 4, and only the movable fixing card 7, the sliding magnet 8 and the slider magnet fixing piece 5 are located outside the cylindrical shell 4, and the cylindrical shell 4 is in a flat cylindrical shape, so that the whole magnetostrictive displacement sensor has a reduced volume, can be suitable for a wider measurement scene, and is more widely applied.
Example 2
As shown in fig. 1 and 2, the magnetostrictive displacement sensor according to embodiment 1 includes a sensing element, a sensing element holder 11, a copper base 12, a shielding tube 13, a shielding tube holder 14, and a coil 15, where the sensing element assemblies are all disposed inside the cylindrical housing 4, the control circuit board 9 is connected to a side of the circuit board mounting base 2 away from the aviation plug 1, and the sensing element, the sensing element holder 11, the copper base 12, and the coil 15 are all connected to the control circuit board 9.
Usually, the control circuit board 9 is disposed in a separate chamber in the magnetostrictive displacement sensor in the prior art, and in the magnetostrictive displacement sensor of this embodiment, the control circuit board 9 and other components such as the coil 15 are also disposed inside the cylindrical housing 4, so as to further reduce the size or dimension of the magnetostrictive displacement sensor, so that the magnetostrictive displacement sensor is smaller and smaller, and can be applied to measurement of certain narrow spaces and volume scenes, and the use is also more convenient.
Example 3
The magnetostrictive displacement sensor according to embodiment 2, as shown in fig. 1 and 2, the copper base 12 and the shielding tube 13 are welded together by silver brazing to perform a shielding function, the shielding tube holder 14 is used for fixing the shielding tube 13, and the shielding tube holder 14 is made of plastic to perform a supporting and damping function; the shielding tube 13 extends along the length direction of the cylindrical shell 4, and the copper base 12 is connected with the control circuit board 9 through M2 screws.
When the magnetostrictive displacement sensor of the embodiment is used, firstly, the movable fixing card 7 is connected to a fixing device which cannot move, then the slider magnet fixing piece 5 is fixed to a moving device which can move, the slider magnet fixing piece 5 is driven to move and displace when the moving device displaces, the slider magnet fixing piece 5 drives the sliding magnet 8 to move or displace in the first tank body, the waveguide wires in the shielding pipe 13 form magnetic induction when the sliding magnet 8 moves, the sliding magnet 8 moves to different positions of the first tank body, the magnetic induction formed by the waveguide wires is different in size, reflected waves return to the coil 15 and are transmitted to the control circuit board 9 through the coil 15, the control circuit board 9 forms corresponding signals, current or voltage signals required by a client are output, and the current or voltage signals determine the position of the sliding magnet 8 after moving in the first tank body, further, the displacement, which is the distance of the sliding magnet 8, can be determined, and finally the displacement of the moving device can be measured. In the magnetostrictive displacement sensor of the embodiment, different components are skillfully matched to accurately measure the displacement of the moving device.
Example 4
As shown in fig. 1 and 2, the magnetostrictive displacement sensor according to embodiment 3 includes a sensing element holder 11 made of plastic and connected to a copper base 12 by an M1.6 screw; the sensor holder 11 is connected to the control circuit board 9 by means of M1.6 screws. As shown in fig. 1 and 2, the shielding tube support 14 fixes one end of the shielding tube 13, the other end of the shielding tube 13 is fixed to the copper base 12, and the copper base 12 is connected to the control circuit board 9.
Example 5
The magnetostrictive displacement sensor according to embodiment 1, as shown in fig. 1 and 2, further comprising two gaskets 3, wherein the two gaskets 3 are hermetically connected between one end of the cylindrical housing 4 and the circuit board mounting seat 2, and between an end cap 6 and the other end of the cylindrical housing 4; the sealing gasket 3 plays a role in sealing, so that the cylindrical shell 4 forms a sealing space and ensures that the internal sensitive element assembly is not corroded by external moisture.
In the magnetostrictive displacement sensor of this embodiment, through between the one end of circuit board mount pad 2 and cylindric shell 4, end cover 6 with set up a sealed pad 3 between the other end of cylindric shell 4 respectively, make magnetostrictive displacement sensor after finishing connecting have better leakproofness, cylindric shell 4 has better leakproofness specifically, subtle parts such as many responses all set up in cylindric shell 4, in case there are water, in gas and dust etc. get into cylindric shell 4, work such as accurate induction measurement of some parts may be influenced, make final displacement measurement result inaccurate like this, through setting up two sealed pads 3 the leakproofness that has improved cylindric shell 4, make magnetostrictive displacement sensor measurement result more accurate.
Example 6
The magnetostrictive displacement sensor according to embodiment 2, as shown in fig. 1 and 2, further comprising a sensing element shield 10; the sensitive element shielding case 10 and the control circuit board 9 are fixed together by welding; the sensitive element shielding case 10 is made of copper material to protect the electronic elements on the control circuit board 9 and shield the external signal interference.
The sensing element shielding case 10 of the present embodiment is preferably made of copper, and by setting the sensing element shielding case 10, it is possible to effectively shield interference signals such as external electromagnetic waves from interfering with various electronic components (necessary electronic components for the magnetostrictive displacement sensor such as a pulse generator and a damper are disposed on the control circuit board 9) on the control circuit board 9, so that the magnetostrictive displacement sensor can be always in a stable measurement environment, and a more accurate measurement result can be obtained.
Example 7
In the magnetostrictive displacement sensor according to embodiment 1, as shown in fig. 1 and 2, the slider magnet fixing member 5 is a hinge rod, and the sliding magnet 8 is connected to one end of the hinge rod.
The hinge rod can be a hinge rod with a ball head, the measurement mode of the magnetostrictive displacement sensor can be a free mode with the ball head, in the specific measurement process, the hinge rod can be adjusted in an angle within 18 degrees, the sliding magnet 8 and the hinge rod are arranged outside the cylindrical shell 4, the cylindrical shell 4 can be flat, a flat protruding structure is formed, the magnetostrictive displacement sensor has excellent mechanical performance and high protection level, is convenient to install, and can be an effective substitute product for various linear displacement sensors (such as a potential difference meter, an LVDT and the like).
Example 8
As shown in fig. 3 and 4, the magnetostrictive displacement sensor according to embodiment 1, wherein the cylindrical housing 4 is a flat hollow cylinder, the cylindrical housing 4 includes a housing body 41, and housing connection holes 42 are formed at four corners of a side wall of the housing body 41 in the length direction;
circuit board mount pad 2 includes flaky circuit board mount pad body 21 and two protruding connecting pieces 23, circuit board mount pad body 21 middle part is seted up and is used for inserting the plug perforation 24 of aviation plug 1, four angle departments of circuit board mount pad body 21 all seted up with mount pad connecting hole 22 that shell connecting hole 42 cooperation is connected, two protruding connecting pieces 23 set up in the both sides of plug perforation 24 are in order to play the effect of fixed control circuit board 9.
In the magnetostrictive displacement sensor of the embodiment, the aviation plugs with different core numbers from 2 cores, 3 cores, 4 cores to 12 cores are inserted into the plug through holes 24 of the circuit board mounting seat 2 and then fixed by screws, so that the circuit board mounting seat body 21 can be connected with different aviation plugs; the four mounting seat connecting holes 22 formed in the circuit board mounting seat body 21 and the four shell connecting holes 42 of the shell body 41 are inserted into conventional connecting pieces in a matching manner, so that the connection between the circuit board mounting seat 2 and the cylindrical shell 4 can be conveniently and stably completed; two bump connectors 23 may be extended perpendicularly to the circuit board mounting base body 21, and each bump connector 23 may be perforated to facilitate connection with the control circuit board 9. The shell body 41 can be formed by aluminum alloy in an integrated die-casting mode, and has good comprehensive performance, the height of the shell body 41 can be 28mm, the maximum measurement length can reach 4600mm, and the shell can be used for equipment which is narrow in space height and not suitable for installation.
The utility model discloses an among the magnetostrictive displacement sensor: the control part is completely arranged inside the cylindrical shell 4, so that the protection level is higher; the sensitive element shielding cover is made of brass and is formed into a sheet metal part by die-casting, and the sensitive element shielding cover can prevent interference and protect an electronic element from being damaged, so that the sensor can work stably and reliably for a long time; the sliding magnet is made of reinforced nylon (GF-30) and is formed by injection molding and matched with a ball head bearing (belonging to a component of a sliding block magnet fixing piece); the specification of the slider magnet can be designed and manufactured according to specific requirements, and the effects of inhibiting high-frequency noise interference and the like are achieved; the sensitive element bracket 11 contains a signal sampling element, and the signal sampling element comprises a waveguide wire and a signal detection module; the length of the slider magnet fixing piece 5 can be designed and manufactured according to specific requirements, and the slider magnet fixing piece can be conveniently connected with equipment; the movable fixing card 7 is punched and formed, the size specification can be designed and manufactured according to specific requirements, and the same replacement with other product installation sizes is realized; a movable fixing card 7 is arranged on the cylindrical shell 4 and can slide freely on the cylindrical shell, and the sensor is fixed with the equipment through the movable fixing card; the shielding pipe bracket 14 is made of reinforced nylon (GF-30) and is formed by injection molding, so that the shielding pipe is supported in the cylindrical shell 4 to be stable; the cylindrical housing 4 can be measured both with slider magnets 8 or with levitation magnets.
The utility model discloses a magnetostrictive displacement sensor has following advantage:
1. the structure part can be parameterized and designed according to specific requirements;
2. the structure is relatively simple, the whole volume is small, and the problem of using equipment with relatively narrow installation space can be solved;
3. the main body section (cylindrical shell) is formed by die-casting aluminum integrally, and is convenient to mount and dismount with equipment through a movable fixing card;
4. the non-contact measurement is adopted, so that the method is not limited by the outside, and is insensitive to impact resistance, dust influence and electromagnetic disturbance;
5. the measuring mode is free type and guide type magnets with ball head rods, and the problem of the singleness of the measuring mode is effectively solved;
6. the insulating cover arranged in the section bar (cylindrical shell) is used for protecting the internal electric device from being damaged due to static electricity and inhibiting the interference of external signals to the inside of the internal electric device to a certain extent;
7. the structure can adopt non-contact measurement, and the adjustable measurement height range is not more than 15 mm;
8. the maximum resolution of the sensor is 0.005mm, the measuring range reaches 50mm-4600mm, and the measuring length can be selected by a customer;
9. the structure is simple to configure, the installation time is saved, and the standard M12 cable aviation plug connection has cost benefit;
10. continuous detection and diagnosis can be realized in control, the transmission rate is high, and the data processing period is short;
11. the structure part adopts silver soldering connection and is added with a vibration-proof program, so that the high-quality vibration resistance of the sensor is realized;
12. the flat protruding structure can effectively replace products of various linear displacement sensors (such as a potential difference meter, an LVDT and the like) by excellent mechanical performance, high protection level and convenient installation.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. A magnetostrictive displacement sensor is characterized by comprising a sliding magnet (8), a slider magnet fixing piece (5), a sensitive element assembly for sensing the magnetic force change of the sliding magnet (8), a movable fixing card (7), an aviation plug (1), a circuit board mounting seat (2), a sealing gasket (3), a cylindrical shell (4), an end cover (6) and a control circuit board (9);
the circuit board mounting seat (2) covers one end opening of the cylindrical shell (4), the end cover (6) covers the other end opening of the cylindrical shell (4), the sensitive element assembly is arranged in the cylindrical shell (4), and the aviation plug (1) is located on the outer side of the cylindrical shell (4) and penetrates through the circuit board mounting seat (2) to be connected with the control circuit board (9);
the cylindrical shell (4) is provided with a first groove body (401) and a second groove body (402) which are arranged at an interval up and down along the length direction, the lower part of the sliding magnet (8) is movably clamped on the first groove body (401), the upper part of the movable fixing clamping piece (7) is movably clamped on the second groove body (402), and the lower part of the movable fixing clamping piece (7) is fixed on a fixing device;
the slider magnet fixing piece (5) is used for fixing the sliding magnet (8) on the moving device.
2. The magnetostrictive displacement sensor according to claim 1, characterized in that the sensing element assembly comprises a sensing element, a sensing element support (11), a copper base (12), a shielding tube (13), a shielding tube support (14) and a coil (15), the sensing element assembly is arranged inside the cylindrical shell (4), the control circuit board (9) is connected to the side of the circuit board mounting base (2) away from the aviation plug (1), and the sensing element, the sensing element support (11), the copper base (12) and the coil (15) are connected to the control circuit board (9).
3. The magnetostrictive displacement sensor according to claim 2, characterized in that the copper base (12) and the shielding tube (13) are soldered together by silver solder, the shielding tube holder (14) is used for fixing the shielding tube (13), and the shielding tube holder (14) is made of plastic; the shielding tube (13) extends along the length direction of the cylindrical shell (4), and the copper base (12) is connected with the control circuit board (9) through an M2 screw.
4. The magnetostrictive displacement sensor according to claim 2, characterized in that the sensor holder (11) is made of plastic and is connected with the copper base (12) by means of an M1.6 screw; the sensitive element bracket (11) is connected with the control circuit board (9) through an M1.6 screw.
5. The magnetostrictive displacement sensor according to claim 4, characterized in that the shielding tube holder (14) fixes one end of the shielding tube (13), the other end of the shielding tube (13) is fixed to the copper base (12), and the copper base (12) is connected to the control circuit board (9).
6. The magnetostrictive displacement sensor according to claim 1, characterized in that the magnetostrictive displacement sensor further comprises two gaskets (3), the two gaskets (3) being sealingly connected between one end of the cylindrical housing (4) and the circuit board mounting seat (2) and between an end cap (6) and the other end of the cylindrical housing (4), respectively.
7. The magnetostrictive displacement sensor according to claim 2, characterized in that the magnetostrictive displacement sensor further comprises a sensing element shield (10); the sensitive element shielding cover (10) and the control circuit board (9) are fixed together through welding; the sensitive element shielding cover (10) is made of copper materials so as to protect electronic elements on the control circuit board (9) and shield external signal interference.
8. The magnetostrictive displacement sensor according to claim 1, characterized in that the slider magnet holder (5) is a hinge rod, the sliding magnet (8) being attached to one end of the hinge rod.
9. The magnetostrictive displacement sensor according to claim 1, wherein the cylindrical housing (4) is in the shape of a flat hollow cylinder, the cylindrical housing (4) comprises a housing body (41), and housing connection holes (42) are formed at four corners of the side wall of the housing body (41) in the length direction;
circuit board mount pad (2) include flaky circuit board mount pad body (21) and two protruding connecting pieces (23), offer at circuit board mount pad body (21) middle part and be used for inserting the plug perforation (24) of aviation plug (1), four angle departments of circuit board mount pad body (21) all seted up with mount pad connecting hole (22) that shell connecting hole (42) cooperation is connected, two protruding connecting pieces (23) set up in the both sides of plug perforation (24) are in order to play fixed control circuit board (9) effect.
10. The magnetostrictive displacement sensor according to claim 1, characterized in that the lower part of the movable fixing card (7) is fixed on the fixing device by M5 x 25 hexagon socket head cap screw, and the cylindrical housing (4) is made of aluminum alloy material which can protect the internal sensitive element assembly.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020973183.6U CN213090676U (en) | 2020-06-01 | 2020-06-01 | Magnetostrictive displacement sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020973183.6U CN213090676U (en) | 2020-06-01 | 2020-06-01 | Magnetostrictive displacement sensor |
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| CN213090676U true CN213090676U (en) | 2021-04-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114264221A (en) * | 2021-12-24 | 2022-04-01 | 南昌工程学院 | Magnetostrictive displacement sensor for precise control |
| CN114608428A (en) * | 2022-03-17 | 2022-06-10 | 华东交通大学 | Working state monitoring system based on magnetostrictive displacement detection |
-
2020
- 2020-06-01 CN CN202020973183.6U patent/CN213090676U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114264221A (en) * | 2021-12-24 | 2022-04-01 | 南昌工程学院 | Magnetostrictive displacement sensor for precise control |
| CN114608428A (en) * | 2022-03-17 | 2022-06-10 | 华东交通大学 | Working state monitoring system based on magnetostrictive displacement detection |
| CN114608428B (en) * | 2022-03-17 | 2023-12-26 | 华东交通大学 | Working state monitoring system based on magnetostriction type displacement detection |
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