CN118243264B - Spoke type force sensor - Google Patents
Spoke type force sensor Download PDFInfo
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- CN118243264B CN118243264B CN202410679565.0A CN202410679565A CN118243264B CN 118243264 B CN118243264 B CN 118243264B CN 202410679565 A CN202410679565 A CN 202410679565A CN 118243264 B CN118243264 B CN 118243264B
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- strain
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- 238000001514 detection method Methods 0.000 claims abstract description 75
- 239000012528 membrane Substances 0.000 claims abstract description 14
- 230000006835 compression Effects 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims abstract description 12
- 230000033001 locomotion Effects 0.000 claims description 21
- 238000010008 shearing Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 6
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006355 external stress Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/12—Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention relates to the technical field of force sensors, in particular to a spoke type force sensor, which comprises: wheel casing, detection end, rigidity strain detection subassembly dynamic detection subassembly and supporter, the inboard fixed mounting of wheel casing has spoke cover seat, and rigidity strain detection subassembly and dynamic detection subassembly are located spoke cover seat's upper and lower both sides respectively, and the outside of detection end is fixed to be cup jointed deformation membrane, and rigidity strain detection subassembly includes clamping ring seat and a plurality of fork rod group and dynamometer, and a plurality of fork rod groups are the circumferencial direction and evenly arranged and are equipped with the movable end ear that is used for connecting between the adjacent movable end ear. According to the invention, by arranging the novel strain structure, the acting force on the surface of the detection end and the deformation film is transmitted to the surface of the compression ring seat to act on the scissor rod group, the lever of the scissor rod group deflects to deform and pulls the dynamometer to deform, so that resistance change is formed, the mechanical force generates rigid deformation effect to improve the detection precision, and the micro pressure effect is accurately perceived.
Description
Technical Field
The invention relates to the technical field of force sensors, in particular to a spoke type force sensor.
Background
The spoke type force sensor is a force sensor which is made of a spoke type elastomer structure and utilizes the shearing stress principle. The coil assembly is fixed to the housing and the permanent magnets are supported by flexible springs. Both damping is electromagnetic damping generated by the relative motion of the metal framework and the magnetic field. The working principle of the moving coil type and the moving iron type is identical, when the shell vibrates together with the measured vibrator, the mass of the moving part is relatively large due to the fact that the spring is softer, when the vibration frequency is high enough (far higher than the natural frequency of the sensor), the inertia of the moving part is large, the moving part does not vibrate together with the vibrator, the moving part is static, vibration energy is almost absorbed by the spring, and the relative motion speed between the permanent magnet and the coil is close to the vibration speed of the vibrator. The coil and the magnet move relatively to cut magnetic force lines, the spoke type weighing sensor generates induced electromotive force proportional to the moving speed, and the number of turns of the coil in the working air gap magnetic field is called the working number of turns; magnetic induction intensity in the working air gap; average length of each turn of coil.
The existing spoke type force sensor adopts a moving coil type sensing structure and a moving iron type sensing structure, and has the following defects in the joint connection of a detection end and an object: when the measured object vibrates at high frequency, the coil of the sensor can generate higher induced electromotive force, so that the measured value is larger, and when the vibration frequency is higher, the inertia of the sensor can not follow the movement of the measured object, so that errors are generated. If the measured object generates axial deflection movement, the relative movement between the sensor coil and the magnet is caused, so that the magnitude of induced electromotive force is changed, and the measurement accuracy of the sensor is also affected. When the measured object is subjected to a small pressure, since the movement of the detection end of the sensor is limited by the spring support, these small pressure changes may not be accurately detected, resulting in inaccurate measurement results. In view of the above, the present invention has been made in view of the above problems, and an object of the present invention is to provide a spoke-type force sensor that solves the problems and improves the practical value by the above technique.
Disclosure of Invention
The present invention aims to solve one of the technical problems existing in the prior art or related technologies.
The technical scheme adopted by the invention is as follows: a spoke force sensor comprising: the wheel shell is fixedly provided with a spoke sleeve seat at the inner side, the rigid strain detection assembly and the dynamic detection assembly are respectively positioned at the upper side and the lower side of the spoke sleeve seat, a deformation film is fixedly sleeved at the outer side of the detection end, the rigid strain detection assembly comprises a compression ring seat, a plurality of shearing fork rod groups and a dynamometer, the shearing fork rod groups are uniformly distributed in the circumferential direction, a dynamometer used for connection is arranged between adjacent movable end lugs, the bottom end of the shearing fork rod groups is movably connected with two ends of the dynamometer through movable end lugs, and the dynamometer comprises a strain pull rod and a strain sleeve fixedly sleeved on the surface of the strain pull rod;
The dynamic detection assembly comprises a movable spoke ring, a plurality of Hall coils and permanent magnetic blocks, wherein the movable spoke ring is fixed at the bottom end of the detection end, a plurality of spoke rods are arranged on the periphery of the movable spoke ring, the permanent magnetic blocks are fixed on the surfaces of the spoke rods and located on the inner sides of the Hall coils, and the Hall coils are uniformly distributed in the circumferential direction and are in one-to-one correspondence with the permanent magnetic blocks.
The present invention may be further configured in a preferred example to: the deformation membrane is of a low-carbon steel disc structure, the periphery and the inner ring of the deformation membrane are respectively connected with the inner side of the wheel shell and the periphery of the detection end, and the connection parts are in sealing joint
The present invention may be further configured in a preferred example to: the inner side of the spoke sleeve seat is provided with a spline hole, the periphery of the detection end is provided with a key sleeve hole matched with the spoke sleeve seat, the key sleeve hole is provided with a contact gap with the surface of the spoke sleeve seat, and the detection end is a magnetic shielding material component.
The present invention may be further configured in a preferred example to: the supporting body is of a polyurethane air bag structure, is of an annular structure and is abutted against the bottom end of the dynamic detection assembly.
The present invention may be further configured in a preferred example to: the shearing fork rod group comprises two connecting rods which are connected in a rotating mode, the two connecting rods are arranged in an X shape, and the distance between the connecting points on the surfaces of the connecting rods and the compression ring seat is larger than the distance between the connecting points of the connecting rods and the connecting points of the dynamometer.
The present invention may be further configured in a preferred example to: the dynamometer is used for detecting the pulling force of the end part of the shearing fork rod group, and the dynamometer and the compression ring seat are respectively contacted with the top surface of the spoke sleeve seat and the bottom surface of the deformation film.
The present invention may be further configured in a preferred example to: the end part of the Hall coil is electrically connected with a Hall sensor, and the permanent magnet block is positioned at the inner side of the Hall coil.
The present invention may be further configured in a preferred example to: the Hall coil is in an elliptical spiral coil shape, and the long axis direction of the Hall coil is parallel to the movement direction of the detection end.
The beneficial effects obtained by the invention are as follows:
1. According to the invention, by arranging the novel strain structure, the acting force on the surface of the detection end and the deformation film is transmitted to the surface of the compression ring seat to act on the scissor rod group, the lever of the scissor rod group deflects to deform and pulls the dynamometer to deform, so that resistance change is formed, the mechanical force generates rigid deformation effect to improve the detection precision, and the micro pressure effect is accurately perceived.
2. According to the invention, by additionally arranging the dynamic detection component structure, the detection end is utilized to pull the spoke ring to move under the action of external force, so that the tiny movement of the permanent magnet block on the inner side of the Hall coil is sensed and analyzed through the Hall coil, the sensitivity of the Hall sensor to the tiny magnetic field change is very high, and the deflection movement displacement influence can be automatically filtered, so that the permanent magnet magnetic field change caused by the tiny movement can be detected, and the detection precision is further improved.
3. According to the invention, the deformation film with elastic strain is arranged on the periphery of the detection end to deform along with the movement of the detection end and is limited by the spline between the spoke sleeve seat and the detection end, so that the deflection movement of the detection end caused by external force is further avoided, the structure protection is carried out, and the accuracy of the detection result is improved, and the service life is ensured.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of an embodiment of the present invention;
FIG. 3 is a schematic view of a wheel housing according to one embodiment of the present invention;
FIG. 4 is a schematic diagram of a rigid strain sensing assembly according to an embodiment of the present invention;
FIG. 5 is a schematic view of a part of a rigid strain sensing assembly according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a load cell configuration according to one embodiment of the invention;
FIG. 7 is a schematic diagram of a dynamic sensing assembly and support structure according to one embodiment of the present invention.
Reference numerals:
100. A wheel housing; 110. a harness plug; 120. a spoke sleeve seat;
200. a detection end; 210. a deformation film;
300. A rigid strain detection assembly; 310. a compression ring seat; 320. a scissors fork set; 330. a movable end lug; 340. a load cell; 341. a strain rod; 342. a strain sleeve;
400. a dynamic detection component; 410. a dynamic spoke ring; 420. a Hall coil; 430. permanent magnet blocks; 411. a spoke rod;
500. a support body.
Detailed Description
The objects, technical solutions and advantages of the present invention will become more apparent by the following detailed description of the present invention with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present invention and features in the embodiments may be combined with each other.
It is to be understood that this description is merely exemplary in nature and is not intended to limit the scope of the present invention.
A spoke force sensor provided in accordance with some embodiments of the present invention is described below with reference to the accompanying drawings.
Referring to fig. 1 to 7, the spoke type force sensor provided by the present invention includes: the wheel housing 100, the detection end 200, the dynamic detection assembly 400 and the supporting body 500 of the rigid strain detection assembly 300, the spoke sleeve seat 120 is fixedly installed on the inner side of the wheel housing 100, the rigid strain detection assembly 300 and the dynamic detection assembly 400 are respectively located on the upper side and the lower side of the spoke sleeve seat 120, the deformation membrane 210 is fixedly sleeved on the outer side of the detection end 200, the rigid strain detection assembly 300 comprises a compression ring seat 310, a plurality of shearing fork rod groups 320 and a dynamometer 340, the shearing fork rod groups 320 are uniformly distributed in the circumferential direction, the dynamometers 330 for connection are arranged between the adjacent movable end lugs 330, the bottom ends of the shearing fork rod groups 320 are movably connected with the two ends of the dynamometer 340 through the movable end lugs 330, and the dynamometer 340 comprises a strain pull rod 341 and a strain sleeve 342 fixedly sleeved on the surface of the strain pull rod 341;
The dynamic detection assembly 400 comprises a movable spoke ring 410, a plurality of hall coils 420 and permanent magnets 430, wherein the movable spoke ring 410 is fixed at the bottom end of the detection end 200, a plurality of spoke rods 411 are arranged on the periphery of the movable spoke ring 410, the permanent magnets 430 are fixed on the surfaces of the spoke rods 411 and are positioned on the inner sides of the hall coils 420, and the hall coils 420 are uniformly distributed in the circumferential direction and are in one-to-one correspondence with the permanent magnets 430.
In this embodiment, the deformation membrane 210 has a low carbon steel disc structure, the outer periphery and the inner periphery of the deformation membrane 210 are respectively connected with the inner side of the wheel housing 100 and the outer periphery of the detection end 200, and the connection parts are in sealing engagement
Specifically, the top seal of the wheel housing 100 is achieved under the engagement of the deformation membrane 210, and the elastic structure of the deformation membrane 210 can deform and sag along with the movement of the detection end 200 under the action of external force.
In this embodiment, a splined hole is formed on the inner side of the spoke sleeve 120, a key sleeve hole adapted to the spoke sleeve 120 is formed on the outer periphery of the detection end 200, a contact gap is formed between the key sleeve hole and the surface of the spoke sleeve 120, and the detection end 200 is a magnetic shielding material member.
Specifically, the movement of the sensing tip 200 is guided by the spoke nipples 120 and magnetically shields the upper and lower compartments.
In this embodiment, the support 500 is a polyurethane airbag structure, and the support 500 has a ring-shaped structure and abuts against the bottom end of the dynamic sensing assembly 400.
Specifically, the polyurethane material has good elasticity and deformability, can be freely deformed according to the external stress condition, detects tiny deformation change, quickly returns to the original state after the force is applied, and can withstand long-term use and repeated compression deformation so as not to be damaged.
In this embodiment, the scissor lever set 320 includes two links rotatably coupled to each other, and the two links are arranged in an X-shape with the link surface connection point being spaced from the pressure ring mount 310 a greater distance than the link connection point is from the load cell 340 connection point.
Specifically, the force is transmitted to the surface of the dynamometer 340 by rigid linkage through the lever motion of the connecting rod of the compression ring seat 310, and the force is used as the tensile deformation of the dynamometer 340, so that the force detection effect is improved.
In this embodiment, the load cell 340 is used to detect the tension at the end of the scissor fork assembly 320, and the load cell 340 and the pressure ring seat 310 are respectively in contact with the top surface of the spoke sleeve seat 120 and the bottom surface of the deformation membrane 210.
In this embodiment, the end of the hall coil 420 is electrically connected to a hall sensor, and the permanent magnet 430 is located inside the hall coil 420.
Further, the hall coil 420 is in an elliptical spiral coil shape, and the long axis direction of the hall coil 420 is parallel to the moving direction of the detecting end 200.
Specifically, the hall sensor senses and analyzes the micro motion of the permanent magnet 430 inside the hall coil 420 through the hall coil 420, has high sensitivity to micro magnetic field changes, and can automatically filter the deflection motion displacement influence.
The working principle and the using flow of the invention are as follows:
When external force acts on the detection end 200 of the sensor, the deformation membrane 210 is stressed to deform, the deformation is conducted to the pressure ring seat 310, and then is conducted to the dynamometer 340 by the plurality of scissor rod groups 320, the lever deflection of the scissor rod groups 320 causes the dynamometer 340 to deform, so that resistance change is generated, and the design of the rigid force transmission structure can improve the detection precision, so that the sensor can accurately sense tiny pressure change;
The dynamic detection assembly 400 senses the position change of the permanent magnet 430 by using the hall coil 420 through the minute movement caused by the stress of the detection end 200. The Hall sensor has high sensitivity to the change of a tiny magnetic field, and can automatically filter the influence of deflection movement displacement, so that the detection precision is further improved;
The deformation film 210 is arranged on the periphery of the detection end 200, and the detection end 200 can be further prevented from deflection movement caused by external force through spline limiting between the spoke sleeve seat 120 and the detection end 200, so that the stability of the structure is improved, the service life is prolonged, and the accuracy of a detection result is ensured;
the rigid strain detection component 300 and the dynamic detection component 400 of the sensor can respectively detect the external force and convert the external force into corresponding electric signals, the signals can be read and recorded through being connected to a data acquisition system or a controller for comparison, the output is carried out when the values of the external force and the dynamic detection component are consistent, the alarm prompt is given when the values of the external force and the dynamic detection component are inconsistent, the calibration and the maintenance of the sensor are carried out in time, and the stability and the accuracy of the sensor are ensured so as to ensure long-term reliable use.
In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (5)
1. A spoke force sensor, comprising: the wheel casing (100), the detection end (200), the rigid strain detection assembly (300) dynamic detection assembly (400) and the supporting body (500), wherein a spoke sleeve seat (120) is fixedly arranged on the inner side of the wheel casing (100), the rigid strain detection assembly (300) and the dynamic detection assembly (400) are respectively positioned on the upper side and the lower side of the spoke sleeve seat (120), a deformation membrane (210) is fixedly sleeved on the outer side of the detection end (200),
The rigid strain detection assembly (300) comprises a compression ring seat (310), a plurality of shearing fork rod groups (320) and a dynamometer (340), wherein the shearing fork rod groups (320) are uniformly distributed in the circumferential direction, the dynamometers (340) used for connection are arranged between adjacent movable end lugs (330), the bottom ends of the shearing fork rod groups (320) are movably connected with the two ends of the dynamometer (340) through the movable end lugs (330), and the dynamometer (340) comprises a strain pull rod (341) and a strain sleeve (342) fixedly sleeved on the surface of the strain pull rod (341);
The shearing fork rod group (320) comprises two connecting rods which are connected in a rotating way, the two connecting rods are arranged in an X shape, and the distance between the connecting point of the surface of each connecting rod and the compression ring seat (310) is larger than the distance between the connecting point of each connecting rod and the connecting point of the dynamometer (340);
The dynamic detection assembly (400) comprises a movable spoke ring (410), a plurality of Hall coils (420) and permanent magnetic blocks (430), wherein the movable spoke ring (410) is fixed at the bottom end of the detection end (200), a plurality of spoke rods (411) are arranged on the periphery of the movable spoke ring (410), the permanent magnetic blocks (430) are fixed on the surfaces of the spoke rods (411) and are positioned at the inner sides of the Hall coils (420), and the Hall coils (420) are uniformly distributed in the circumferential direction and are in one-to-one correspondence with the permanent magnetic blocks (430);
The deformation membrane (210) is of a low-carbon steel disc structure, the periphery and the inner ring of the deformation membrane (210) are respectively connected with the inner side of the wheel shell (100) and the periphery of the detection end (200), and the connection parts are in sealing joint;
The dynamometer (340) is used for detecting the tension of the end part of the scissor fork rod group (320), and the dynamometer (340) and the compression ring seat (310) are respectively contacted with the top surface of the spoke sleeve seat (120) and the bottom surface of the deformation membrane (210).
2. The spoke type force sensor according to claim 1, wherein a spline hole is formed in the inner side of the spoke sleeve seat (120), a key sleeve hole matched with the spoke sleeve seat (120) is formed in the periphery of the detection end (200), a contact gap is formed between the key sleeve hole and the surface of the spoke sleeve seat (120), and the detection end (200) is a magnetic shielding material member.
3. The spoke force sensor of claim 1, wherein the support body (500) is a polyurethane airbag structure, and the support body (500) is in a ring-shaped structure and abuts against the bottom end of the dynamic detection assembly (400).
4. The spoke force sensor of claim 1, wherein the hall sensor is electrically connected to an end of the hall coil (420), and the permanent magnet (430) is located inside the hall coil (420).
5. The spoke type force sensor of claim 1, wherein the hall coil (420) has an elliptical spiral coil shape, and a long axis direction of the hall coil (420) is parallel to a movement direction of the sensing end (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410679565.0A CN118243264B (en) | 2024-05-29 | 2024-05-29 | Spoke type force sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410679565.0A CN118243264B (en) | 2024-05-29 | 2024-05-29 | Spoke type force sensor |
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| Publication Number | Publication Date |
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| CN118243264A CN118243264A (en) | 2024-06-25 |
| CN118243264B true CN118243264B (en) | 2024-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410679565.0A Active CN118243264B (en) | 2024-05-29 | 2024-05-29 | Spoke type force sensor |
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| Country | Link |
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| CN (1) | CN118243264B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205691271U (en) * | 2014-12-23 | 2016-11-16 | 大力士股份有限公司 | Metal bellows and force transducer for force transducer |
| CN210664840U (en) * | 2019-11-29 | 2020-06-02 | 江苏威科电子有限公司 | Thick film pressure sensor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200208929Y1 (en) * | 2000-06-29 | 2001-01-15 | 주식회사물. 공기. 광선 | Tester for Clamping load/ORING TESTER |
| DE102010041970A1 (en) * | 2010-10-05 | 2012-04-05 | Robert Bosch Gmbh | Sensor arrangement for acquisition of twist between shafts of shaft assembly of steering column, has retention devices that are arranged so that twist of shafts feeds axial displacement of magnet assembly to sensor device |
| EP3588038A1 (en) * | 2018-06-21 | 2020-01-01 | AIRBUS HELICOPTERS DEUTSCHLAND GmbH | A measuring apparatus for determining loads caused by moments and forces |
| DE102022102604A1 (en) * | 2022-02-03 | 2023-08-03 | Johannes Prettl | Relative twist detection device and crank assembly |
| CN217765302U (en) * | 2022-03-25 | 2022-11-08 | 西人马联合测控（泉州）科技有限公司 | Cross-coupled double-chip pressure sensor |
-
2024
- 2024-05-29 CN CN202410679565.0A patent/CN118243264B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205691271U (en) * | 2014-12-23 | 2016-11-16 | 大力士股份有限公司 | Metal bellows and force transducer for force transducer |
| CN210664840U (en) * | 2019-11-29 | 2020-06-02 | 江苏威科电子有限公司 | Thick film pressure sensor |
Also Published As
| Publication number | Publication date |
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| CN118243264A (en) | 2024-06-25 |
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