CN108254108A - A kind of MEMS pressure sensor based on information engineering - Google Patents

A kind of MEMS pressure sensor based on information engineering Download PDF

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Publication number
CN108254108A
CN108254108A CN201810109925.8A CN201810109925A CN108254108A CN 108254108 A CN108254108 A CN 108254108A CN 201810109925 A CN201810109925 A CN 201810109925A CN 108254108 A CN108254108 A CN 108254108A
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CN
China
Prior art keywords
lever
movable axis
protecting box
pressure sensor
information engineering
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Granted
Application number
CN201810109925.8A
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Chinese (zh)
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CN108254108B (en
Inventor
李桂新
张平
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Anhui Micro Thailand Navigation Electronic Technology Co Ltd
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Anhui Micro Thailand Navigation Electronic Technology Co Ltd
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Priority to CN201810109925.8A priority Critical patent/CN108254108B/en
Publication of CN108254108A publication Critical patent/CN108254108A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00Measuring force or stress, in general
    • G01L1/20Measuring 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
    • G01L1/22Measuring 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
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00Details 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
    • G01L19/14Housings

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

The invention discloses a kind of MEMS pressure sensors based on information engineering; including protecting box and micro-control switch; the lower end inner surface of the protecting box is installed with lever mount; and lever is provided with above lever mount; the outer surface middle position of the lever is provided with No.1 movable axis; and lever is flexibly connected by No.1 movable axis with lever mount; the upper end outer surface side of the lever is installed with firm banking; and lever upper end outer surface opposite side is provided with spring pedestal, and No. two movable axis and spring are provided with above the spring pedestal.A kind of MEMS pressure sensor based on information engineering of the present invention; equipped with micro-control switch, lever and protecting box; do not need to outer bound pair its power supply in the case of by pressure conversion be electric signal; and pressure measurement range bigger; protecting box plays protective effect to whole device; it avoids, due to the excessive damage sensor of pressure, bringing better prospect of the application.

Description

A kind of MEMS pressure sensor based on information engineering
Technical field
The present invention relates to sensor field, more particularly to a kind of MEMS pressure sensor based on information engineering.
Background technology
Pressure sensor is to experience pressure signal, and can be converted into pressure signal according to certain rule available defeated The device or device of the electric signal gone out, are usually made of pressure-sensing device and signal processing unit, be in industrial practice the most A kind of common sensor is widely used in various industrial automatic control environment, be related to water conservancy and hydropower, railway traffic, intelligent building, Produce numerous industries such as automatic control, aerospace, military project, petrochemical industry, oil well, electric power, ship, lathe, pipeline;Traditional pressure sensing There are certain drawbacks when in use for device;As pressure signal conversion is cumbersome, while needs to provide energy, and can measuring pressure model It encloses smaller, sensor degradation may be caused when in addition pressure is excessive, for this purpose, we have proposed a kind of MEMS based on information engineering Pressure sensor.
Invention content
The technical problem to be solved by the present invention is to overcome the defects of the prior art, provide a kind of MEMS based on information engineering Pressure sensor.
In order to solve the above technical problem, the present invention provides following technical solutions:
A kind of MEMS pressure sensor based on information engineering of the present invention, including protecting box and micro-control switch, the protection The lower end inner surface of box is installed with lever mount, and lever is provided with above lever mount, the outer surface of the lever Middle position is provided with No.1 movable axis, and lever is flexibly connected by No.1 movable axis with lever mount, the lever Upper end outer surface side is installed with firm banking, and lever upper end outer surface opposite side is provided with spring pedestal, the bullet No. two movable axis and spring are provided with above spring pedestal, and the outer surface middle position of No. two movable axis is provided with fixed circle Ring, the upper end inner surface of the protecting box are installed with movable axis guide pad, and the micro-control switch is fixedly installed in protecting box Side inner surface, and the lower end inner surface of micro-control switch is provided with fixed frame, and the centre position of the fixed frame is provided with iron Heart guiding axis, and iron core guiding axis is internally provided with electromagnetic core, the upper end outer surface of the iron core guiding axis is provided with absolutely Edge boxcar, and the side inner surface for the boxcar that insulate is provided with fixed baffle, the lower end outer surface setting of the fixed baffle There is foil gauge, the front inner surface of the insulation boxcar is provided with signal amplifier, the outer surface edge position of the protecting box The place of putting is provided with fastener.
Preferably, No. two movable axis are through movable axis guide pad and protecting box, and No. two movable axis pass through spring It is flexibly connected with protecting box.
Preferably, the electromagnetic core is through iron core guiding axis, and electromagnetic core is turned by iron core guiding axis and insulation Change box flexible connection.
Preferably, the outer surface of the insulation boxcar is provided with data line, and the boxcar that insulate is passed by data Defeated line is electrically connected with micro-control switch.
Preferably, the opposite side inner surface of the insulation boxcar is provided with wire interface, the signal amplifier Both sides be equipped with conducting wire, and signal amplifier passes through conducting wire and is electrically connected with wire interface.
Preferably, the front inner surface of the protecting box is installed with signal processor, and the micro-control switch passes through number It is electrically connected according to transmission line and signal processor.
The advantageous effect that is reached of the present invention is:The MEMS pressure sensor based on information engineering, it is micro- by what is be equipped with Pressure conversion is electric signal in the case where not needing to outer bound pair its power supply, separately by control switch and its internal insulation boxcar It is outer that larger pressure conversion is become smaller using lever principle so that whole device can measure the pressure of bigger, the protection being equipped with Box plays protective effect to whole device, avoids due to the excessive damage sensor of pressure, the MEMS pressure of entire information engineering Sensor structure is simple, easy to operate, and the effect used is more preferable relative to traditional approach.
Description of the drawings
Attached drawing is used to provide further understanding of the present invention, and a part for constitution instruction, the reality with the present invention Example is applied together for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structure diagram of the present invention;
Fig. 2 is the partial schematic diagram of the present invention;
Fig. 3 is the partial enlarged view at A in Fig. 2 of the invention;
Fig. 4 is the partial enlarged view at B in Fig. 3 of the invention.
In figure:1st, micro-control switch;2nd, electromagnetic core;3rd, firm banking;4th, No.1 movable axis;5th, lever mount;6th, lever; 7th, spring pedestal;8th, spring;9th, clamping rings;10th, No. two movable axis;11st, movable axis guide pad;12nd, data line;13、 Signal processor;14th, protecting box;15th, fastener;16th, iron core guiding axis;17th, insulate boxcar;18th, fixed frame;19th, it is fixed Baffle;20th, foil gauge;21st, signal amplifier;22nd, wire interface.
Specific embodiment
The preferred embodiment of the present invention is illustrated below in conjunction with attached drawing, it should be understood that preferred reality described herein It applies example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
Embodiment 1
As shown in Figs 1-4, a kind of MEMS pressure sensor based on information engineering, including protecting box 14 and micro-control switch 1, The lower end inner surface of protecting box 14 is installed with lever mount 5, and the top of lever mount 5 is provided with lever 6, lever 6 Outer surface middle position is provided with No.1 movable axis 4, and lever 6 is flexibly connected by No.1 movable axis 4 with lever mount 5, The upper end outer surface side of lever 6 is installed with firm banking 3, and 6 upper end outer surface opposite side of lever is provided with spring bottom Seat 7, the top of spring pedestal 7 is provided with No. two movable axis 10 and spring 8, and the outer surface middle position of No. two movable axis 10 Clamping rings 9 is provided with, the upper end inner surface of protecting box 14 is installed with movable axis guide pad 11, and micro-control switch 1 fixes peace Side inner surface loaded on protecting box 14, and the lower end inner surface of micro-control switch 1 is provided with fixed frame 18, the centre of fixed frame 18 Position is provided with iron core guiding axis 16, and iron core guiding axis 16 is internally provided with electromagnetic core 2, the upper end of iron core guiding axis 16 Outer surface is provided with insulation boxcar 17, and the side inner surface for the boxcar 17 that insulate is provided with fixed baffle 19, fixed baffle 19 lower end outer surface is provided with foil gauge 20, and the front inner surface of insulation boxcar 17 is provided with signal amplifier 21, protects Fastener 15 is provided at the outer surface edge position of box 14.
No. two movable axis 10 through movable axis guide pad 11 and protecting box 14, and No. two movable axis 10 by spring 8 with Protecting box 14 is flexibly connected;Electromagnetic core 2 is through iron core guiding axis 16, and electromagnetic core 2 is by iron core guiding axis 16 and absolutely Edge boxcar 17 is flexibly connected;The outer surface of insulation boxcar 17 is provided with data line 12, and the boxcar 17 that insulate passes through Data line 12 is electrically connected with micro-control switch 1;The opposite side inner surface of insulation boxcar 17 is provided with wire interface 22, believes The both sides of number amplifier 21 are equipped with conducting wire, and signal amplifier 21 is electrically connected by conducting wire and wire interface 22;Protecting box 14 front inner surface is installed with signal processor 13, and micro-control switch 1 passes through data line 12 and signal processor 13 It is electrically connected.
Have under certain pressure it should be noted that the present invention works as a kind of MEMS pressure sensor based on information engineering No. two movable axis 10 are pressed, No. two movable axis 10 compress downwards along movable axis guide pad 11, by being fixed on No. two movable axis 10 9 compressed spring 8 of clamping rings on surface, then lever 6 is pushed by spring pedestal 7, since lever 6 is lived by No.1 movable axis 4 Dynamic to be installed in lever mount 5, so the other end of lever 6 tilts, the firm banking 3 for being set to 6 surface of lever at this time compresses Electromagnetic core 2 inside micro-control switch 1, electromagnetic core 2 are squeezed along the iron core guiding axis 16 for being fixed on 18 centre position of fixed frame Pressure insulation boxcar 17 is set to the foil gauge 20 on 19 surface of fixed baffle, and electromagnetic core 2 moves in coil, generates induced electricity Stream deforms upon resistance and changes since foil gauge 20 is squeezed, and circuital current changes, and signal amplifier 21 will be thin The electric current of microvariations by data line 12 sends signal processor 13 to after capturing and amplifying, and signal processor 13 carries out It handles operation and shows real-time pressure size, fastener 15 facilitates the fixation of protecting box 14, and protecting box 14 plays whole device Protective effect is avoided due to the excessive damage sensor of pressure, more practical.
Finally it should be noted that:The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used To modify to the technical solution recorded in foregoing embodiments or carry out equivalent replacement to which part technical characteristic. All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's Within protection domain.

Claims (6)

1. a kind of MEMS pressure sensor based on information engineering, including protecting box (14) and micro-control switch (1), feature exists In:The lower end inner surface of the protecting box (14) is installed with lever mount (5), and is provided with above lever mount (5) Lever (6), the outer surface middle position of the lever (6) are provided with No.1 movable axis (4), and lever (6) is lived by No.1 Moving axis (4) is flexibly connected with lever mount (5), and the upper end outer surface side of the lever (6) is installed with firm banking (3), and lever (6) upper end outer surface opposite side is provided with spring pedestal (7), and two are provided with above the spring pedestal (7) Number movable axis (10) and spring (8), and the outer surface middle position of No. two movable axis (10) is provided with clamping rings (9), institute The upper end inner surface for stating protecting box (14) is installed with movable axis guide pad (11), and the micro-control switch (1) is fixedly installed in The side inner surface of protecting box (14), and the lower end inner surface of micro-control switch (1) is provided with fixed frame (18), the fixed frame (18) centre position is provided with iron core guiding axis (16), and iron core guiding axis (16) is internally provided with electromagnetic core (2), institute The upper end outer surface for stating iron core guiding axis (16) is provided with insulation boxcar (17), and the side inner surface for the boxcar (17) that insulate Fixed baffle (19) is provided with, the lower end outer surface of the fixed baffle (19) is provided with foil gauge (20), the insulation conversion The front inner surface of box (17) is provided with signal amplifier (21), is provided at the outer surface edge position of the protecting box (14) Fastener (15).
2. a kind of MEMS pressure sensor based on information engineering according to claim 1, it is characterised in that:Described No. two Movable axis (10) is through movable axis guide pad (11) and protecting box (14), and No. two movable axis (10) pass through spring (8) and guarantor Box (14) is protected to be flexibly connected.
3. a kind of MEMS pressure sensor based on information engineering according to claim 1, it is characterised in that:The electromagnetism Iron core (2) is through iron core guiding axis (16), and electromagnetic core (2) is living with insulation boxcar (17) by iron core guiding axis (16) Dynamic connection.
4. a kind of MEMS pressure sensor based on information engineering according to claim 1, it is characterised in that:The insulation The outer surface of boxcar (17) is provided with data line (12), and insulate boxcar (17) by data line (12) with it is micro- Control switch (1) is electrically connected.
5. a kind of MEMS pressure sensor based on information engineering according to claim 1, it is characterised in that:The insulation The opposite side inner surface of boxcar (17) is provided with wire interface (22), and the both sides of the signal amplifier (21), which are equipped with, leads Line, and signal amplifier (21) is electrically connected by conducting wire and wire interface (22).
6. a kind of MEMS pressure sensor based on information engineering according to claim 1-4, it is characterised in that:The guarantor The front inner surface of shield box (14) is installed with signal processor (13), and the micro-control switch (1) passes through data line (12) it is electrically connected with signal processor (13).
CN201810109925.8A 2018-02-05 2018-02-05 MEMS pressure sensor based on information engineering Active CN108254108B (en)

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Application Number Priority Date Filing Date Title
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CN108254108B CN108254108B (en) 2024-06-28

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB787812A (en) * 1954-07-15 1957-12-18 G M Giannini & Co Inc Improvements in or relating to pressure transducers
CN206114850U (en) * 2016-10-24 2017-04-19 浙江巨磁智能技术有限公司 Succinct convenient current sensor chip test fixture
CN106644244A (en) * 2016-11-17 2017-05-10 歌尔股份有限公司 MEMS pressure sensor
CN206399564U (en) * 2017-01-05 2017-08-11 南京凯基特电气有限公司 A kind of wireless pressure sensor
CN207964136U (en) * 2018-02-05 2018-10-12 安徽微泰导航电子科技有限公司 A kind of MEMS pressure sensor based on information engineering

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB787812A (en) * 1954-07-15 1957-12-18 G M Giannini & Co Inc Improvements in or relating to pressure transducers
CN206114850U (en) * 2016-10-24 2017-04-19 浙江巨磁智能技术有限公司 Succinct convenient current sensor chip test fixture
CN106644244A (en) * 2016-11-17 2017-05-10 歌尔股份有限公司 MEMS pressure sensor
CN206399564U (en) * 2017-01-05 2017-08-11 南京凯基特电气有限公司 A kind of wireless pressure sensor
CN207964136U (en) * 2018-02-05 2018-10-12 安徽微泰导航电子科技有限公司 A kind of MEMS pressure sensor based on information engineering

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
李科峰;: "基于压力传感器、光敏传感器的车库车辆自动计数系统", 电子世界, no. 04 *

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