CN110686806A - Pressure sensor and preparation method thereof - Google Patents
Pressure sensor and preparation method thereof Download PDFInfo
- Publication number
- CN110686806A CN110686806A CN201911079599.1A CN201911079599A CN110686806A CN 110686806 A CN110686806 A CN 110686806A CN 201911079599 A CN201911079599 A CN 201911079599A CN 110686806 A CN110686806 A CN 110686806A
- Authority
- CN
- China
- Prior art keywords
- mounting base
- pressure sensor
- base
- bearing base
- set casing
- 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
Images
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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
- G01L19/069—Protection against electromagnetic or electrostatic interferences
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/14—Housings
- G01L19/142—Multiple part housings
- G01L19/143—Two part housings
Abstract
The invention provides a pressure sensor and a preparation method of the pressure sensor, and relates to the technical field of pressure sensors. The pressure sensor comprises a mounting base and a bearing base, wherein the mounting base is located above the bearing base, the lower surface of the mounting base is fixedly connected with the upper surface of the bearing base, and the mounting base is fixedly connected with a lower fixing shell in threaded connection with the outer side wall of the bearing base. Through the electrostatic shielding membrane and the magnetic field shielding membrane that set up, the influence of static and strong magnetic field to the pressure detection component that has significantly reduced, through do electrostatic spraying to the set casing down with last set casing and set up the rubber ring down between set casing and last set casing, the effectual pressure that receives of set casing and last set casing down of having alleviated, the corrosion-resistant and wear resistance of set casing and last set casing down have been strengthened simultaneously, make whole pressure sensor receive the influence of external factor and reduce greatly, pressure sensor's high performance state has been maintained, pressure sensor's life has been prolonged.
Description
Technical Field
The invention relates to the technical field of pressure sensors, in particular to a pressure sensor and a preparation method of the pressure sensor.
Background
The pressure sensor is the most common sensor in industrial practice, and the output of a common pressure sensor is an analog signal, which means that the information parameter appears as a continuous signal in a given range. Or at successive time intervals, the characteristic quantity representing the information can be represented as a signal of any value at any instant, while the pressure sensors that we usually use are made mainly of the piezoelectric effect, such sensors are also called piezoelectric sensors.
The working principle of the pipeline pressure sensor is that the pressure of a medium directly acts on a diaphragm of the sensor, the diaphragm is enabled to generate micro displacement in direct proportion to the pressure of the medium, the resistance of the sensor is enabled to change, the change is detected by an electronic circuit, and a standard signal corresponding to the pressure is converted and output.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a pressure sensor and a preparation method of the pressure sensor, and solves the problem that the service life of the pressure sensor is shortened due to the fact that the existing pressure sensors are easily influenced by external factors, the performance of a detection element is influenced, and the external structure of the pressure sensor is also influenced.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a pressure sensor, includes the mounting base and bears the base, the mounting base is located the top of bearing the base, the lower surface of mounting base and the last fixed surface who bears the base are connected, the mounting base has a lower set casing with the lateral wall threaded connection who bears the base, the mounting base has the pressure measurement component with the inside fixedly connected with diaphragm that bears the base, the interior top fixed mounting of mounting base has the pressure measurement, the surface of mounting base runs through and is provided with a plurality of guide pins, the top of mounting base is provided with the set casing, the bottom fixedly connected with screw ring of going up the set casing, go up the set casing and pass through the surface threaded connection of screw ring and mounting base, the inside wall of going up the set casing is provided with electrostatic shielding membrane and magnetic field shielding membrane, the bottom center department's of bearing the base switch-on has the.
Preferably, the top of lower set casing is glued and is connected with the rubber ring, the rubber ring is contradicted with last set casing, the outer surface of lower set casing and last set casing is all done electrostatic spraying and is handled.
Preferably, both ends of the diaphragm are located at the connection position of the mounting base and the bearing base, and the pressure detection element is electrically connected with the guide pins through conducting wires.
Preferably, the electrostatic shielding film is located on the inner side of the magnetic field shielding film, and the thicknesses of the electrostatic shielding film and the magnetic field shielding film are both 1-2 mm.
Preferably, the middle position of the air inlet pipe is subjected to diameter changing treatment, and the diameter of the diameter changing position of the air inlet pipe is larger than that of the diameter non-changing position.
A preparation method of a pressure sensor comprises the following preparation steps:
s1, preparing a mounting base and a bearing base, and checking whether the surfaces of the mounting base and the bearing base have defects or not;
s2, soldering a pressure detection element in the mounting base, mounting all guide pins, electrically connecting the guide pins and the pressure detection element through conducting wires, and testing for 3-5 times after the mounting is finished;
s3, pressing a diaphragm between the mounting base and the bearing base, welding the mounting base and the bearing base, and connecting an air inlet pipe at the bottom of the bearing base;
s4, preparing a lower fixing shell and an upper fixing shell, performing electrostatic spraying treatment on the outer surfaces of the lower fixing shell and the upper fixing shell, then bonding a rubber ring with a size matched with that of the top of the lower fixing shell, and meanwhile, arranging an electrostatic shielding film and a magnetic field shielding film in the upper fixing shell;
s5, the lower fixing shell is connected to the joint of the mounting base and the bearing base in a threaded mode, the upper fixing shell is connected to the outer side wall of the mounting base in a threaded mode, and the lower fixing shell is abutted to the upper fixing shell.
(III) advantageous effects
The invention provides a pressure sensor and a preparation method thereof. The method has the following beneficial effects:
according to the pressure sensor and the preparation method of the pressure sensor, the electrostatic shielding film and the magnetic field shielding film are arranged, the influence of static electricity and a strong magnetic field on a pressure detection element is greatly reduced, the pressure applied to the lower fixing shell and the upper fixing shell is effectively relieved by performing electrostatic spraying treatment on the lower fixing shell and the upper fixing shell and arranging the rubber ring between the lower fixing shell and the upper fixing shell, the corrosion resistance and the wear resistance of the lower fixing shell and the upper fixing shell are enhanced, the influence of external factors on the whole pressure sensor is greatly reduced, the high-performance state of the pressure sensor is maintained, and the service life of the pressure sensor is prolonged.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Wherein, 1, installing a base; 2. a bearing base; 3. a lower stationary shell; 4. a membrane; 5. a pressure detecting element; 6. a guide pin; 7. an upper stationary shell; 8. a threaded ring; 9. an electrostatic shielding film; 10. a magnetic field shielding film; 11. a rubber ring; 12. an air inlet pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in fig. 1, an embodiment of the present invention provides a pressure sensor, including a mounting base 1 and a receiving base 2, the mounting base 1 is located above the receiving base 2, a lower surface of the mounting base 1 is fixedly connected to an upper surface of the receiving base 2, the mounting base 1 is in threaded connection with a lower fixing shell 3 on an outer side wall of the receiving base 2, the mounting base 1 is fixedly connected to an inner portion of the receiving base 2 through a diaphragm 4, a pressure detecting element 5 is fixedly mounted on an inner top portion of the mounting base 1, a plurality of guide pins 6 are arranged on a surface of the mounting base 1 in a penetrating manner, an upper fixing shell 7 is arranged above the mounting base 1, a threaded ring 8 is fixedly connected to a bottom portion of the upper fixing shell 7, the upper fixing shell 7 is in threaded connection with an outer surface of the mounting base 1 through the threaded ring 8, an electrostatic shielding film 9 and a magnetic shielding film 10 are arranged on an inner side wall of the upper.
The top rubber joint of lower set casing 3 has rubber ring 11, rubber ring 11 is inconsistent with last set casing 7, electrostatic spraying is all done with the surface of last set casing 7 to set casing 3 down and is handled, the both ends of diaphragm 4 all are located mounting base 1 and bear the junction of base 2, pressure measurement component 5 passes through the wire and is connected with 6 electricity of a plurality of pilot pins, electrostatic shielding membrane 9 is located the inboard of magnetic field shielding membrane 10, electrostatic shielding membrane 9 is 1-2mm with the thickness of magnetic field shielding membrane 10, the reducing is handled to the intermediate position of intake pipe 12, and the diameter of intake pipe 12 reducing department is greater than the diameter of not reducing department, the reducing is handled and can be had certain guard action to intake pipe 12 and bear base 2.
A preparation method of a pressure sensor comprises the following preparation steps:
s1, preparing a mounting base 1 and a bearing base 2, and checking whether the surfaces of the mounting base 1 and the bearing base 2 have defects or not;
s2, soldering a pressure detection element 5 on the inner part of the mounting base 1, simultaneously mounting all guide pins 6, electrically connecting the guide pins 6 and the pressure detection element 5 through leads, and testing for 3-5 times after the mounting is finished;
s3, pressing a membrane 4 between the mounting base 1 and the bearing base 2, welding the mounting base 1 and the bearing base 2, and connecting an air inlet pipe 12 at the bottom of the bearing base 2;
s4, preparing a lower fixing shell 3 and an upper fixing shell 7, performing electrostatic spraying treatment on the outer surfaces of the lower fixing shell 3 and the upper fixing shell 7, then bonding a rubber ring 11 with a size matched with the top of the lower fixing shell 3, and meanwhile arranging an electrostatic shielding film 9 and a magnetic field shielding film 10 in the upper fixing shell 7;
s5, the lower fixing shell 3 is connected to the joint of the mounting base 1 and the bearing base 2 in a threaded mode, the upper fixing shell 7 is connected to the outer side wall of the mounting base 1 in a threaded mode, and therefore the lower fixing shell 3 and the upper fixing shell 7 are abutted together.
Through the electrostatic shielding membrane 9 and the magnetic field shielding membrane 10 that set up, the influence of static and strong magnetic field to pressure measurement element 5 has significantly reduced, through do electrostatic spraying to under stationary housing 3 and last stationary housing 7 and set up rubber ring 11 between under stationary housing 3 and last stationary housing 7, the effectual pressure that receives of stationary housing 3 and last stationary housing 7 down of having alleviated, the corrosion-resistant and wear resistance of stationary housing 3 and last stationary housing 7 have been strengthened down simultaneously, make whole pressure sensor receive the influence of external factor and reduce greatly, pressure sensor's high performance state has been maintained, pressure sensor's life has been prolonged.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A pressure sensor comprises a mounting base (1) and a bearing base (2), and is characterized in that: the mounting base (1) is positioned above the bearing base (2), the lower surface of the mounting base (1) is fixedly connected with the upper surface of the bearing base (2), the outer side wall of the mounting base (1) and the outer side wall of the bearing base (2) are in threaded connection with a lower fixed shell (3), the mounting base (1) and the inner part of the bearing base (2) are fixedly connected with a diaphragm (4), the inner top of the mounting base (1) is fixedly provided with a pressure detection element (5), the surface of the mounting base (1) is provided with a plurality of guide pins (6) in a penetrating manner, an upper fixed shell (7) is arranged above the mounting base (1), the bottom of the upper fixed shell (7) is fixedly connected with a threaded ring (8), the upper fixed shell (7) is in threaded connection with the outer surface of the mounting base (1) through the threaded ring (8), and the inner side wall of the upper fixed shell (7) is provided with an electrostatic shielding film (9) and a magnetic field shielding, an air inlet pipe (12) is communicated with the center of the bottom of the bearing base (2).
2. A pressure sensor as claimed in claim 1, wherein: the top of lower set casing (3) is glued and is connected with rubber ring (11), rubber ring (11) and last set casing (7) are inconsistent, the outer surface of lower set casing (3) and last set casing (7) all is done electrostatic spraying and is handled.
3. A pressure sensor as claimed in claim 1, wherein: the two ends of the diaphragm (4) are located at the joint of the mounting base (1) and the bearing base (2), and the pressure detection element (5) is electrically connected with the guide pins (6) through wires.
4. A pressure sensor as claimed in claim 1, wherein: the electrostatic shielding film (9) is positioned on the inner side of the magnetic field shielding film (10), and the thicknesses of the electrostatic shielding film (9) and the magnetic field shielding film (10) are both 1-2 mm.
5. A pressure sensor as claimed in claim 1, wherein: the diameter changing treatment is carried out at the middle position of the air inlet pipe (12), and the diameter of the diameter changing position of the air inlet pipe (12) is larger than that of the diameter of the position which is not subjected to diameter changing.
6. A method for manufacturing a pressure sensor is characterized in that: the preparation method comprises the following preparation steps:
s1, preparing a mounting base (1) and a bearing base (2), and checking whether the surfaces of the mounting base (1) and the bearing base (2) have defects or not;
s2, soldering a pressure detection element (5) on the inner part of the mounting base (1), simultaneously mounting all guide pins (6), electrically connecting the guide pins (6) and the pressure detection element (5) through leads, and testing for 3-5 times after the mounting is finished;
s3, pressing a membrane (4) between the mounting base (1) and the bearing base (2), welding the mounting base (1) and the bearing base (2), and connecting an air inlet pipe (12) at the bottom of the bearing base (2);
s4, preparing a lower fixed shell (3) and an upper fixed shell (7), performing electrostatic spraying treatment on the outer surfaces of the lower fixed shell (3) and the upper fixed shell (7), then bonding a rubber ring (11) with a size matched with that of the top of the lower fixed shell (3), and meanwhile arranging an electrostatic shielding film (9) and a magnetic field shielding film (10) in the upper fixed shell (7);
s5, the lower fixing shell (3) is in threaded connection with the joint of the mounting base (1) and the bearing base (2), and the upper fixing shell (7) is in threaded connection with the outer side wall of the mounting base (1), so that the lower fixing shell (3) and the upper fixing shell (7) are abutted together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911079599.1A CN110686806A (en) | 2019-11-07 | 2019-11-07 | Pressure sensor and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911079599.1A CN110686806A (en) | 2019-11-07 | 2019-11-07 | Pressure sensor and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110686806A true CN110686806A (en) | 2020-01-14 |
Family
ID=69115678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911079599.1A Pending CN110686806A (en) | 2019-11-07 | 2019-11-07 | Pressure sensor and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110686806A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1089354A (en) * | 1992-08-31 | 1994-07-13 | 拉尔夫·G·赖德诺尔 | Sensor module and installation method thereof |
| CN1945248A (en) * | 2006-10-31 | 2007-04-11 | 北京信息工程学院 | Pulsating pressure sensor |
| CN101331080A (en) * | 2005-10-14 | 2008-12-24 | 意法半导体股份有限公司 | Substrate-level assembly for an integrated device, manufacturing process thereof and related integrated device |
| CN102980713A (en) * | 2011-09-02 | 2013-03-20 | 株式会社不二工机 | Pressure sensor |
| CN105004468A (en) * | 2014-04-17 | 2015-10-28 | 株式会社不二工机 | Pressure sensor |
| CN105784212A (en) * | 2016-03-25 | 2016-07-20 | 深圳安培龙科技股份有限公司 | Ceramic capacitive pressure sensor and preparation method thereof |
| RU2603446C1 (en) * | 2015-07-30 | 2016-11-27 | Федеральное государственное унитарное предприятие "Центральный аэрогидродинамический институт имени профессора Н.Е. Жуковского" (ФГУП "ЦАГИ") | Device for pressure and temperature measuring |
| CN106477509A (en) * | 2015-09-01 | 2017-03-08 | 阿自倍尔株式会社 | Fine Machinery device |
| CN107797151A (en) * | 2017-12-20 | 2018-03-13 | 福建省麦雅数控科技有限公司 | A kind of reverse buckling type metal detection probe |
| CN207570715U (en) * | 2017-11-16 | 2018-07-03 | 佛山市顺德区美的电热电器制造有限公司 | Pressure sensor and with its pressure cooker |
| CN209166703U (en) * | 2019-01-17 | 2019-07-26 | 广州市云控供应链科技有限公司 | A kind of anti-interference pressure sensor |
-
2019
- 2019-11-07 CN CN201911079599.1A patent/CN110686806A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1089354A (en) * | 1992-08-31 | 1994-07-13 | 拉尔夫·G·赖德诺尔 | Sensor module and installation method thereof |
| CN101331080A (en) * | 2005-10-14 | 2008-12-24 | 意法半导体股份有限公司 | Substrate-level assembly for an integrated device, manufacturing process thereof and related integrated device |
| CN1945248A (en) * | 2006-10-31 | 2007-04-11 | 北京信息工程学院 | Pulsating pressure sensor |
| CN102980713A (en) * | 2011-09-02 | 2013-03-20 | 株式会社不二工机 | Pressure sensor |
| CN105004468A (en) * | 2014-04-17 | 2015-10-28 | 株式会社不二工机 | Pressure sensor |
| RU2603446C1 (en) * | 2015-07-30 | 2016-11-27 | Федеральное государственное унитарное предприятие "Центральный аэрогидродинамический институт имени профессора Н.Е. Жуковского" (ФГУП "ЦАГИ") | Device for pressure and temperature measuring |
| CN106477509A (en) * | 2015-09-01 | 2017-03-08 | 阿自倍尔株式会社 | Fine Machinery device |
| CN105784212A (en) * | 2016-03-25 | 2016-07-20 | 深圳安培龙科技股份有限公司 | Ceramic capacitive pressure sensor and preparation method thereof |
| CN207570715U (en) * | 2017-11-16 | 2018-07-03 | 佛山市顺德区美的电热电器制造有限公司 | Pressure sensor and with its pressure cooker |
| CN107797151A (en) * | 2017-12-20 | 2018-03-13 | 福建省麦雅数控科技有限公司 | A kind of reverse buckling type metal detection probe |
| CN209166703U (en) * | 2019-01-17 | 2019-07-26 | 广州市云控供应链科技有限公司 | A kind of anti-interference pressure sensor |
Non-Patent Citations (2)
| Title |
|---|
| PCB压电电子有限公司: "压电式压力传感器", 《国外计量》 * |
| 曲敬信等: "《表面工程手册》", 31 March 1998, 化学工业出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10190929B2 (en) | Pressure sensor device and pressure sensor device manufacturing method | |
| CN107219027A (en) | A kind of encapsulating structure of ceramic capacitive pressure sensors | |
| CN207636232U (en) | A kind of strain-type differential pressure pickup | |
| CN109855789B (en) | Sensor for monitoring surface pressure of underwater small-sized vehicle | |
| CN110686806A (en) | Pressure sensor and preparation method thereof | |
| CN110243530A (en) | A kind of novel pressure sensor | |
| CN202916035U (en) | Water pressure detection device based on ceramic pressure sensor | |
| CN209485591U (en) | A kind of dynamic surface pressure sensor | |
| CN102721506A (en) | A pressure transducer | |
| CN111947827A (en) | Marine high-static-pressure-resistant differential pressure measuring device, ship and measuring method | |
| CN108269680B (en) | A kind of wall-attaching type ultrasonic sensor arragement construction | |
| CN116576997A (en) | Shaft force sensor | |
| CN103017971A (en) | Gas pressure sensor | |
| CN204694395U (en) | The gas pressure sensor that a kind of accuracy of detection is high | |
| CN103234588A (en) | On-line replaceable invisible induction type flow meter | |
| CN203177902U (en) | Online replacing type concealed induction flow meter | |
| CN210198629U (en) | Vacuum degree pressure sensor | |
| CN106149548A (en) | A kind of bearing device for measuring force | |
| CN208296880U (en) | A kind of three-in-one sensor of Highgrade integration design | |
| CN105547569A (en) | High-temperature absolute pressure sensor | |
| CN206891621U (en) | A kind of encapsulating structure of ceramic capacitive pressure sensors | |
| CN204694396U (en) | A kind of baroceptor of strong interference immunity | |
| CN203177901U (en) | Online replacing type induction vortex shedding flowmeter | |
| CN211347110U (en) | Movable connecting structure for fixing metal skeleton temperature-sensing element | |
| CN218724903U (en) | Ceramic capacitance type pressure sensor |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200114 |
|
| RJ01 | Rejection of invention patent application after publication |