CN219348020U - Novel high-precision capacitance pressure sensor - Google Patents
Novel high-precision capacitance pressure sensor Download PDFInfo
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- CN219348020U CN219348020U CN202320730549.0U CN202320730549U CN219348020U CN 219348020 U CN219348020 U CN 219348020U CN 202320730549 U CN202320730549 U CN 202320730549U CN 219348020 U CN219348020 U CN 219348020U
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- 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
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The utility model relates to the technical field of pressure sensors and discloses a novel high-precision capacitance pressure sensor, which comprises a sensor shell, wherein a feedback sliding sheet is slidably assembled in the sensor shell, the middle part of the feedback sliding sheet is fixedly connected with a central column, a movable electrode is fixedly sleeved on the central column, a fixed electrode is fixedly installed in the sensor shell, a reset spring is assembled in the sensor shell, and an adjusting component for adjusting the reset spring is arranged in the sensor shell. When the capacitive pressure sensor provided by the utility model is used, a worker can adjust the reset spring through the adjusting component, so that the feedback sliding sheet can be reset smoothly, the accuracy of the pressure sensor is ensured, the spring in the sensor is not required to be replaced, the operation is convenient, and the practicability of the sensor is improved.
Description
Technical Field
The utility model relates to the technical field of pressure sensors, in particular to a novel high-precision capacitance pressure sensor.
Background
The capacitive pressure sensor is a pressure sensor which converts the measured pressure into electric quantity with a certain relation with the measured pressure by using a capacitive sensing element and outputs the electric quantity.
For the differential pole-pitch type capacitance pressure sensor, the measurement mode of changing the distance between two parallel plates of the capacitance has higher sensitivity, nonlinearity can be improved and sensitivity can be improved by adopting a differential capacitance method, and a spring for assisting the movable parallel plate to reset is arranged in the differential pole-pitch type capacitance pressure sensor.
Therefore, there is a need to design a new high-precision capacitive pressure sensor to solve the above-mentioned problems.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and provides a novel high-precision capacitance pressure sensor.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a novel high accuracy electric capacity pressure sensor, includes the sensor housing, the inside slip assembly of sensor housing has the feedback gleitbretter, the middle part fixedly connected with center post of feedback gleitbretter, fixed cover is equipped with movable electrode on the center post, the inside fixed mounting of sensor housing has fixed electrode, the inside of sensor housing is equipped with reset spring, the inside of sensor housing is provided with the adjusting part who is used for adjusting reset spring.
As a preferable technical scheme of the utility model, the adjusting assembly comprises an adjusting plate, an adjusting screw rod, a guide sliding rod and a rotating block, wherein the adjusting plate is fixedly sleeved on the center column, the adjusting screw rod penetrates through the sensor shell and is in rotary connection with the sensor shell, one end of the adjusting screw rod is positioned in the sensor shell and penetrates through the feedback sliding sheet and the adjusting plate, the adjusting plate is in threaded sleeve connection with the adjusting screw rod, the other end of the adjusting screw rod is positioned outside the sensor shell and is fixedly connected with the rotating block, the guide sliding rod is fixedly connected with the inner face of the sensor shell, the guide sliding rod penetrates through the feedback sliding sheet and the adjusting plate, and the adjusting plate is slidably sleeved on the guide sliding rod.
As a preferable technical scheme of the utility model, one end of the return spring is connected with the feedback sliding sheet, and the other end of the return spring is connected with the adjusting plate.
As a preferable technical scheme of the utility model, two avoidance ports are formed in the feedback sliding vane, and the adjusting screw and the guide sliding rod respectively penetrate through the two avoidance ports.
As a preferred embodiment of the utility model, the adjusting screw is provided with threads only in the part located inside the sensor housing.
As a preferable technical scheme of the utility model, the section of the rotary block is of a regular hexagon structure.
According to the utility model, through the arrangement of the adjusting component, a worker can adjust the position of the adjusting plate through the adjusting component, and the larger the compression amount is in the elastic deformation range of the reset spring, the larger the elastic potential energy is, so that when the reset spring is compressed, the reset spring can provide larger elastic force for the feedback sliding vane, the feedback sliding vane can be reset smoothly, the precision of the pressure sensor is ensured, the spring in the sensor is not required to be replaced, the operation is convenient, and the practicability of the sensor is improved.
Drawings
Fig. 1 is a schematic structural diagram of a novel high-precision capacitive pressure sensor according to the present utility model.
In the figure: 1 sensor shell, 2 feedback slip sheet, 3 center post, 4 movable electrode, 5 fixed electrode, 6 reset spring, 7 adjusting component, 71 regulating plate, 72 adjusting screw, 73 guide slide bar, 74 gyration piece.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1, a novel high-precision capacitive pressure sensor comprises a sensor housing 1, a feedback slip sheet 2 is slidably assembled in the sensor housing 1, a center column 3 is fixedly connected to the middle of the feedback slip sheet 2, a movable electrode 4 is fixedly sleeved on the center column 3, a fixed electrode 5 is fixedly installed in the sensor housing 1, a return spring 6 is assembled in the sensor housing 1, the specific working principle of the sensor provided by the utility model is not an innovative part of the technical scheme, not shown in the figure, and not described in detail, and an adjusting component 7 for adjusting the elastic force of the return spring 6 is arranged in the sensor housing 1.
Referring to fig. 1, the adjusting assembly 7 includes an adjusting plate 71, an adjusting screw 72, a guide sliding rod 73 and a rotating block 74, the adjusting plate 71 is fixedly sleeved on the center column 3, the adjusting screw 72 penetrates through the sensor housing 1 and is rotationally connected with the sensor housing 1, one end of the adjusting screw 72 is located inside the sensor housing 1 and penetrates through the feedback sliding sheet 2 and the adjusting plate 71, the adjusting plate 71 is in threaded sleeve connection with the adjusting screw 72, the other end of the adjusting screw 72 is located outside the sensor housing 1 and is fixedly connected with the rotating block 74, the guide sliding rod 73 is fixedly connected with the inner face of the sensor housing 1, the guide sliding rod 73 penetrates through the feedback sliding sheet 2 and the adjusting plate 71, the adjusting plate 71 is slidably sleeved on the guide sliding rod 73, and the adjusting assembly 7 is arranged to facilitate the adjustment of the elasticity of the reset spring 6 by staff.
Referring to fig. 1, one end of the return spring 6 is connected to the feedback slide 2, and the other end of the return spring 6 is connected to the adjustment plate 71.
Referring to fig. 1, two avoidance ports are formed in the feedback slide sheet 2, and the adjusting screw 72 and the guide slide bar 73 respectively penetrate through the two avoidance ports, so that the influence of the adjusting screw 72 and the guide slide bar 73 on the movement of the feedback slide sheet 2 is avoided.
Referring to fig. 1, only a portion of the adjusting screw 72 located inside the sensor housing 1 is provided with threads.
Referring to fig. 1, the cross section of the knob 74 is in a regular hexagonal structure, which facilitates the rotation of the knob 74 by a worker using a wrench.
The specific working principle of the utility model is as follows:
when the capacitive pressure sensor provided by the utility model is used, when the reset spring 6 loses part of elasticity, the capacitive pressure sensor has the condition of precision reduction, at the moment, a worker can adjust the elasticity of the reset spring 6 through the adjusting component 7, specifically, the worker rotates the rotating block 74 by using a spanner, the rotating block 74 can drive the adjusting screw 72 to rotate when rotating, the adjusting screw 72 can drive the adjusting plate 71 to move towards the direction of the feedback sliding vane 2 under the limit action of the guide sliding rod 73, the adjusting plate 71 can squeeze the reset spring 6 in the moving process, and the elastic formula of the spring is as follows: f=kx, k is the elastic coefficient of the return spring 6, and x is the deformation amount of the return spring 6, so that in the elastic deformation range of the return spring 6, the larger the compression amount is, the larger the elastic potential energy is, so that when the return spring 6 is compressed, the return spring 6 can provide larger elastic force for the feedback slide sheet 2, so that the feedback slide sheet 2 can be smoothly reset, and the accuracy of the pressure sensor is ensured.
It should be noted that, when the elastic force of the return spring 6 is adjusted, the adjustment amount of the adjustment plate 71 is related to the elastic coefficient of the return spring 6, the elastic loss of the return spring 6, and other factors, and the adjustment amount of the adjustment plate 71 is not an innovative part of the present technical solution, not shown in the drawings, and will not be described in detail herein.
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 (6)
1. The utility model provides a novel high accuracy electric capacity pressure sensor, includes sensor housing (1), the inside slip of sensor housing (1) is equipped with feedback gleitbretter (2), the middle part fixedly connected with center post (3) of feedback gleitbretter (2), fixed cover is equipped with movable electrode (4) on center post (3), the inside fixed mounting of sensor housing (1) has fixed electrode (5), the inside of sensor housing (1) is equipped with reset spring (6), a serial communication port, the inside of sensor housing (1) is provided with adjusting part (7) that are used for adjusting reset spring (6) elasticity.
2. The novel high-precision capacitive pressure sensor according to claim 1, wherein the adjusting component (7) comprises an adjusting plate (71), an adjusting screw (72), a guide sliding rod (73) and a rotating block (74), the adjusting plate (71) is fixedly sleeved on the center column (3), the adjusting screw (72) penetrates through the sensor shell (1) and is rotationally connected with the sensor shell (1), one end of the adjusting screw (72) is located in the sensor shell (1) and penetrates through a feedback sliding sheet (2) and the adjusting plate (71), the adjusting plate (71) is in threaded sleeve connection with the adjusting screw (72), the other end of the adjusting screw (72) is located outside the sensor shell (1) and is fixedly connected with the rotating block (74), the guide sliding rod (73) is fixedly connected with the inner face of the sensor shell (1), the guide sliding rod (73) penetrates through the feedback sliding sheet (2) and the adjusting plate (71), and the adjusting plate (71) is slidingly sleeved on the guide sliding rod (73).
3. The novel high-precision capacitive pressure sensor according to claim 2, wherein one end of the return spring (6) is connected with the feedback slide sheet (2), and the other end of the return spring (6) is connected with the adjusting plate (71).
4. The novel high-precision capacitive pressure sensor according to claim 2, wherein the feedback sliding sheet (2) is provided with two avoidance ports, and the adjusting screw (72) and the guide sliding rod (73) respectively penetrate through the two avoidance ports.
5. A novel high precision capacitive pressure sensor according to claim 2, characterized in that the adjusting screw (72) is threaded only in the part located inside the sensor housing (1).
6. The novel high-precision capacitive pressure sensor according to claim 2, wherein the cross section of the rotating block (74) is in a regular hexagonal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320730549.0U CN219348020U (en) | 2023-04-06 | 2023-04-06 | Novel high-precision capacitance pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320730549.0U CN219348020U (en) | 2023-04-06 | 2023-04-06 | Novel high-precision capacitance pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219348020U true CN219348020U (en) | 2023-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320730549.0U Active CN219348020U (en) | 2023-04-06 | 2023-04-06 | Novel high-precision capacitance pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219348020U (en) |
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2023
- 2023-04-06 CN CN202320730549.0U patent/CN219348020U/en active Active
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