CN116659361A - Magnetostrictive displacement sensor - Google Patents
Magnetostrictive displacement sensor Download PDFInfo
- Publication number
- CN116659361A CN116659361A CN202310530891.0A CN202310530891A CN116659361A CN 116659361 A CN116659361 A CN 116659361A CN 202310530891 A CN202310530891 A CN 202310530891A CN 116659361 A CN116659361 A CN 116659361A
- Authority
- CN
- China
- Prior art keywords
- displacement sensor
- connecting seat
- wall
- sealing
- connecting rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 68
- 238000007789 sealing Methods 0.000 claims abstract description 46
- 239000000523 sample Substances 0.000 claims abstract description 14
- 238000013016 damping Methods 0.000 claims abstract description 7
- 230000007246 mechanism Effects 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 9
- 239000011810 insulating material Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/003—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring position, not involving coordinate determination
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/30—Supports specially adapted for an instrument; Supports specially adapted for a set of instruments
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
- G01D5/145—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices influenced by the relative movement between the Hall device and magnetic fields
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The utility model discloses a magnetostriction displacement sensor, which comprises a connecting seat, wherein a plurality of threaded holes are formed in the top of the connecting seat, fastening bolts are connected to the inner walls of the threaded holes in a threaded manner, a connecting rod is connected to the bottom of the connecting seat through bolts, a slot is formed in the bottom of the connecting rod, a shielding pipe is fixedly inserted into the inner walls of the slot, through holes are formed in the inner walls of the connecting seat, the connecting rod and the shielding pipe, waveguide wires are inserted into the inner walls of the through holes, a damping receiver is electrically connected to the bottom of the waveguide wires, a sensor probe is connected to the top of the connecting seat through bolts, and the sensor probe is fixedly connected with the waveguide wires. The utility model can seal the installation of the displacement sensor so as to improve the working stability of the displacement sensor and prevent the poor stability of the displacement sensor caused by poor sealing effect, thereby affecting the accuracy of the detection data of the displacement sensor and further affecting the working of the displacement sensor.
Description
Technical Field
The utility model relates to the field of displacement sensors, in particular to a magnetostriction displacement sensor.
Background
The magnetostrictive displacement sensor is characterized by that it utilizes the magnetostriction principle, and utilizes the intersection of two different magnetic fields to produce a strain pulse signal so as to accurately measure position, and the measuring element is a waveguide tube, and the sensitive element in the waveguide tube is made of special magnetostrictive material, and the measuring process is characterized by that the electronic chamber of the sensor can produce current pulse, and said current pulse is transferred in the waveguide tube so as to produce a circumferential magnetic field outside the waveguide tube, and when the magnetic field is intersected with the magnetic field produced by movable magnetic ring which is placed on the waveguide tube and used as position change, due to the action of magnetostriction, a strain mechanical wave pulse signal can be produced in the waveguide tube, and said strain mechanical wave pulse signal can be transferred at fixed sound speed, and can be quickly detected by electronic chamber.
Through searching, the Chinese patent application with the application publication number of CN213179846U discloses a magnetostriction displacement sensor, which comprises a compression screw, an electronic bin shell tail cover, a sensitive element assembly, an electronic bin control chamber, a sealing ring, a check ring, a stainless steel measuring rod and a movable magnetic ring. According to the utility model, clearance fit is formed between the periphery of the electronic bin control chamber and the inner wall of the oil cylinder, two annular grooves are formed outside the electronic bin control chamber, and the first annular groove is connected with the cylinder body of the oil cylinder by using a threaded jackscrew, so that the effect of fixing a sensor is achieved. The sealing ring and the check ring fixed by the second annular groove are used for extruding the inner wall of the cylinder body, so that the sealing effect of the sensor and the inner wall of the oil cylinder is realized, and the stability and the sealing performance of the sensor in the cylinder body are ensured.
When the displacement sensor is installed, the displacement sensor is usually subjected to sealing treatment, so that the stability of the displacement sensor during operation and the accuracy of detection data are improved, however, the sealing performance between the existing displacement sensor and the element is poor, and the operation of the displacement sensor is affected.
Disclosure of Invention
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a magnetostriction displacement sensor, includes the connecting seat, a plurality of screw holes have been seted up at the top of connecting seat, and the inner wall threaded connection of screw hole has the fastening bolt, there is the connecting rod the bottom of connecting seat through bolted connection, and the slot has been seted up to the bottom of connecting rod, the fixed grafting of inner wall of slot has the shielding pipe, the through-hole has all been seted up to the inner wall of connecting seat, connecting rod and shielding pipe, and the inner wall grafting of through-hole has the waveguide, the bottom electric connection of waveguide has the damping receiver, the top of connecting seat has sensor probe through bolted connection, and fixed connection between sensor probe and the waveguide, the fixed slot has been seted up to the bottom of connecting seat, and is provided with sealing mechanism between the inside of fixed slot and the connecting rod.
Preferably, the sealing mechanism comprises a sealing block and a sealing gasket, the top of the sealing block is provided with a connecting port, the connecting port is fixedly connected with the connecting rod, and the sealing gasket is fixedly sleeved on the outer wall of the sealing block.
Preferably, the inner wall sliding connection of fixed slot has the roof, and is provided with the blotter between roof and the fixed slot, and first cavity has been seted up to the inside of blotter, and the second cavity has been seted up to the inside of sealed pad, is provided with the connecting pipe between first cavity and the second cavity.
Preferably, the top of connecting seat has the protection casing through bolted connection, and sensor probe is located the inside of protection casing, and the protection casing is insulating material.
Preferably, the top of protection casing is connected with the connector through the bolted connection, and the top of sensor probe is connected with circuit module through the bolted connection, is provided with the wire between circuit module and the connector.
Preferably, the outer wall of the shielding pipe is connected with a connecting sleeve in a sliding manner, and the outer wall of the connecting sleeve is fixedly sleeved with an annular magnetic block.
Preferably, an electric telescopic rod is connected between the bottom of the sealing block and the top of the annular magnetic block through bolts.
The beneficial effects of the utility model are as follows:
1. according to the utility model, when the displacement sensor is installed, the connecting seat is fixed on the element through the fastening bolt, the displacement sensor is installed through the waveguide wire and the damping receiver, the sealing mechanism can seal the displacement sensor during the detection process, the top plate can move upwards under the action of pressure during the installation of the displacement sensor, so that the top plate extrudes the buffer cushion, at the moment, the gas in the first cavity is conveyed into the second cavity through the connecting pipe after being extruded, the sealing pad can bulge due to the input of the gas, and at the moment, the bulged sealing pad can be tightly attached to the element, so that the installation of the displacement sensor can be sealed through the cooperation between the buffer pad and the sealing pad, the stability of the displacement sensor is improved, the influence on the accuracy of the detection data of the displacement sensor caused by poor sealing effect is prevented, and the influence on the operation of the displacement sensor is further prevented;
2. according to the utility model, through the connecting sleeve and the electric telescopic rod, when the displacement sensor works, the positions of the annular magnetic blocks can be adjusted through the electric telescopic rod and the connecting sleeve, so that the working effect of the displacement sensor is improved, and the accuracy of the detection data of the displacement sensor is improved.
Drawings
FIG. 1 is a schematic diagram of a magnetostrictive displacement sensor according to the present utility model;
FIG. 2 is a schematic cross-sectional view of a magnetostrictive displacement sensor according to the present utility model;
FIG. 3 is a schematic diagram of the structure of the A-position of the magnetostrictive displacement sensor according to the present utility model;
FIG. 4 is a schematic diagram of a partial structure of a magnetostrictive displacement sensor according to the present utility model;
FIG. 5 is a schematic diagram showing a bottom view of a magnetostrictive displacement sensor according to the present utility model;
fig. 6 is a schematic diagram of a cross-sectional structure of a sealing mechanism of a magnetostrictive displacement sensor according to the present utility model.
In the accompanying drawings: 1. a connecting seat; 2. a fastening bolt; 3. a protective cover; 4. a connector; 5. a shielding tube; 6. connecting sleeves; 7. an annular magnetic block; 8. an electric telescopic rod; 9. a sensor probe; 10. a circuit module; 11. a wire; 12. a threaded hole; 13. a connecting rod; 14. a sealing mechanism; 15. a through hole; 16. a waveguide wire; 17. a damping receiver; 18. a fixing groove; 19. a cushion pad; 20. a first cavity; 21. a top plate; 22. a sealing gasket; 23. a sealing block; 24. a slot; 25. a second cavity; 26. and (5) connecting pipes.
Detailed Description
Referring to fig. 1-6, a magnetostrictive displacement sensor, including connecting seat 1, a plurality of screw holes 12 have been seted up at the top of connecting seat 1, and the inner wall threaded connection of screw hole 12 has fastening bolt 2, connecting seat 1's bottom has connecting rod 13 through bolted connection, and slot 24 has been seted up to connecting rod 13's bottom, slot 24's inner wall fixed grafting has shielding pipe 5, through-hole 15 has all been seted up to connecting seat 1, connecting rod 13 and shielding pipe 5's inner wall, and the inner wall grafting of through-hole 15 has waveguide 16, waveguide 16's bottom electric connection has damping receiver 17, sensor probe 9 has through bolted connection at the top of connecting seat 1 and waveguide 16 between fixed connection, fixed slot 18 has been seted up to connecting seat 1's bottom, and is provided with sealing mechanism 14 between the inside of fixed slot 18 and the connecting rod 13 to can seal up the stability of displacement sensor in order to improve displacement sensor's stability, thereby prevent that the stability of displacement sensor is relatively poor because the sealed effect leads to the fact displacement sensor's stability to the fact the sensor to influence accurate sensor's that influences the sensor's of displacement, and then causes the sensor to the accurate displacement.
On the basis of the above, the sealing mechanism 14 comprises a sealing block 23 and a sealing gasket 22, the top of the sealing block 23 is provided with a connecting port, the connecting port is fixedly connected with the connecting rod 13, and the sealing gasket 22 is fixedly sleeved on the outer wall of the sealing block 23.
On the basis of the above, the inner wall of the fixing groove 18 is slidably connected with the top plate 21, the buffer 19 is disposed between the top plate 21 and the fixing groove 18, the first cavity 20 is disposed in the buffer 19, the second cavity 25 is disposed in the buffer 22, the connecting pipe 26 is disposed between the first cavity 20 and the second cavity 25, during the installation of the displacement sensor, the top plate 21 moves upwards under the action of pressure, so that the top plate 21 performs extrusion treatment on the buffer 19, at this time, gas in the first cavity 20 is conveyed to the second cavity 25 through the connecting pipe 26 after being extruded, the buffer 22 is swelled due to the input of the gas, at this time, the swelled buffer 22 is tightly attached to the element, so that the installation of the displacement sensor can be sealed through the cooperation between the buffer 19 and the buffer 22, so as to improve the stability of the operation of the displacement sensor, and prevent the influence on the operation of the displacement sensor due to poor stability of the displacement sensor, thereby affecting the accuracy of the detection data of the displacement sensor.
On the basis, the top of the connecting seat 1 is connected with the protective cover 3 through bolts, the sensor probe 9 is positioned in the protective cover 3, and the protective cover 3 is made of insulating materials.
On the basis of the above, the top of the protective cover 3 is connected with the connector 4 through a bolt, the top of the sensor probe 9 is connected with the circuit module 10 through a bolt, and a wire 11 is arranged between the circuit module 10 and the connector 4.
On the basis of the above, the outer wall of the shielding pipe 5 is connected with the connecting sleeve 6 in a sliding manner, and the outer wall of the connecting sleeve 6 is fixedly sleeved with the annular magnetic block 7.
On the basis of the above, the electric telescopic rod 8 is connected between the bottom of the sealing block 23 and the top of the annular magnetic block 7 through a bolt, and when the displacement sensor works, the position of the annular magnetic block 7 can be adjusted through the electric telescopic rod 8 and the connecting sleeve 6 so as to improve the working effect of the displacement sensor and further improve the accuracy of detection data of the displacement sensor.
In summary, by means of the above technical solution of the present utility model: when the displacement sensor is installed, the connecting seat 1 is fixed on the element through the fastening bolt 2, the displacement data is detected through the waveguide wire 16 and the damping receiver 17, during the period, the installation of the displacement sensor can be sealed through the sealing mechanism 14, during the installation of the displacement sensor, the top plate 21 can move upwards under the action of pressure, so that the top plate 21 extrudes the buffer pad 19, at the moment, the gas in the first cavity 20 can be conveyed to the inside of the second cavity 25 through the connecting pipe 26 after being extruded, the sealing pad 22 can bulge due to the input of the gas, at the moment, the bulged sealing pad 22 can be tightly attached to the element, so that the installation of the displacement sensor can be sealed through the cooperation between the buffer pad 19 and the sealing pad 22, the stability of the displacement sensor is improved, the stability of the displacement sensor is prevented from being poor due to the sealing effect, the accuracy of the detection data of the displacement sensor is further influenced, the operation of the displacement sensor is further influenced, the position of the annular connecting sleeve 7 can be adjusted through the electric telescopic rods 8 and 6, and the displacement sensor is conveniently improved.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (7)
1. The utility model provides a magnetostriction displacement sensor, includes connecting seat (1), a plurality of screw holes (12) have been seted up at the top of connecting seat (1), and the inner wall threaded connection of screw hole (12) has binding bolt (2), a serial communication port, there is connecting rod (13) the bottom of connecting seat (1) through bolted connection, and slot (24) have been seted up to the bottom of connecting rod (13), the inner wall fixed grafting of slot (24) has shielding pipe (5), through-hole (15) have all been seted up to the inner wall of connecting seat (1), connecting rod (13) and shielding pipe (5), and the inner wall grafting of through-hole (15) has waveguide (16), the bottom electric connection of waveguide (16) has damping receiver (17), the top of connecting seat (1) has sensor probe (9) through bolted connection, and fixed connection between sensor probe (9) and waveguide (16), fixed slot (18) have been seted up to the bottom of connecting seat (1), and be provided with sealing mechanism (14) between the inside of fixed slot (18) and connecting rod (13).
2. The magnetostrictive displacement sensor according to claim 1, wherein the sealing mechanism (14) comprises a sealing block (23) and a sealing pad (22), the top of the sealing block (23) is provided with a connecting port, the connecting port is fixedly connected with the connecting rod (13), and the sealing pad (22) is fixedly sleeved on the outer wall of the sealing block (23).
3. The magnetostrictive displacement sensor according to claim 2, wherein the inner wall of the fixed groove (18) is slidably connected with a top plate (21), a cushion pad (19) is disposed between the top plate (21) and the fixed groove (18), a first cavity (20) is formed in the cushion pad (19), a second cavity (25) is formed in the sealing pad (22), and a connecting pipe (26) is disposed between the first cavity (20) and the second cavity (25).
4. The magnetostrictive displacement sensor according to claim 1, wherein the top of the connecting seat (1) is connected with a protective cover (3) through bolts, the sensor probe (9) is positioned in the protective cover (3), and the protective cover (3) is made of an insulating material.
5. The magnetostrictive displacement sensor according to claim 4, characterized in that the top of the protective cover (3) is connected with the connector (4) by a bolt, the top of the sensor probe (9) is connected with the circuit module (10) by a bolt, and a wire (11) is arranged between the circuit module (10) and the connector (4).
6. Magnetostrictive displacement sensor according to claim 2, characterized in that the outer wall of the shielding tube (5) is slidingly connected with a connecting sleeve (6), and the outer wall of the connecting sleeve (6) is fixedly sleeved with an annular magnetic block (7).
7. Magnetostrictive displacement sensor according to claim 6, characterized in that an electric telescopic rod (8) is connected between the bottom of the sealing block (23) and the top of the annular magnet (7) by means of a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310530891.0A CN116659361A (en) | 2023-05-12 | 2023-05-12 | Magnetostrictive displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310530891.0A CN116659361A (en) | 2023-05-12 | 2023-05-12 | Magnetostrictive displacement sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116659361A true CN116659361A (en) | 2023-08-29 |
Family
ID=87710983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310530891.0A Pending CN116659361A (en) | 2023-05-12 | 2023-05-12 | Magnetostrictive displacement sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116659361A (en) |
-
2023
- 2023-05-12 CN CN202310530891.0A patent/CN116659361A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201273190Y (en) | Triaxial-stress multi-pressure test point rock core reservoir simulation device | |
| CN101358689A (en) | Pipe detection device | |
| CN116659361A (en) | Magnetostrictive displacement sensor | |
| CN206095474U (en) | Safe type film pressure sensor of mining essence | |
| CN201059954Y (en) | Magnetic telescopic displacement sensor | |
| CN104697710B (en) | A kind of pressure sensor calibrating device with graininess solid as medium | |
| CN203365043U (en) | Osmometer | |
| CN216246921U (en) | Stress sensor | |
| CN217005678U (en) | Miniaturized mining intrinsically safe magnetostrictive displacement sensor | |
| CN206891626U (en) | A kind of novel fiber grating soil pressure sensor | |
| CN105571757A (en) | Shock absorber pre-tightening force detection device and detection method | |
| CN204535849U (en) | The piezoelectric ceramic hydrophone of metal shell sealing | |
| US3521492A (en) | Fast response pressure gage | |
| CN108168621B (en) | Device for simultaneously measuring water pressure, temperature and mining stress | |
| CN109541255B (en) | Integrated pressure-guiding type water speed sensor for speed measurement of amphibious vehicle on water | |
| CN207598624U (en) | A kind of oil cylinder | |
| CN203178026U (en) | Fiber grating hydraulic sensor | |
| CN204439277U (en) | A kind of pressure sensor calibrating device that is medium with graininess solid | |
| EP1992819B1 (en) | Piston stroke counting device | |
| CN204924544U (en) | High temperature melt pressure transducers that no medium was filled | |
| CN212391084U (en) | Radio frequency admittance level meter | |
| RU111648U1 (en) | PRESSURE METER | |
| CN105352422B (en) | A kind of capacitance displacement sensor for electrohydraulic servo valve | |
| CN212433207U (en) | Sealing structure of two-channel acoustic Doppler flow velocity profiler | |
| CN110687212A (en) | Device and system for detecting dynamic crack development rule of coal rock under external condition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |