CN107402102A - Wind pressure sensor - Google Patents
Wind pressure sensor Download PDFInfo
- Publication number
- CN107402102A CN107402102A CN201710683495.6A CN201710683495A CN107402102A CN 107402102 A CN107402102 A CN 107402102A CN 201710683495 A CN201710683495 A CN 201710683495A CN 107402102 A CN107402102 A CN 107402102A
- Authority
- CN
- China
- Prior art keywords
- magnet
- spring
- base
- push pedal
- pressure sensor
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
- G01L9/008—Transmitting or indicating the displacement of flexible diaphragms using piezoelectric devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/08—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of piezoelectric devices, i.e. electric circuits therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/14—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means involving the displacement of magnets, e.g. electromagnets
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a kind of wind pressure sensor, including base and upper lid, the chamber of push pedal built in being formed between base and upper lid, push pedal is arranged on base, and push pedal is provided with the first magnet and the second magnet, and the first magnet be arranged in parallel with the second magnet poles, the side of first magnet and the second magnet is provided with Hall sensor, the first spring is provided between push pedal and base, second spring is provided between push pedal and upper lid, base is provided with adjusting nut.The present invention, using double magnet schemes during work, make the magnetic field around Hall sensor close to linearly, make the air pressure of input directly proportional to the signal exported, increase its measurement accuracy, reduce the error of measurement, double magnets be arranged in parallel simultaneously, the distance moved during work is short, increase operating efficiency, and perpendicularity when ensureing that the first magnet and the second magnet move by the effect of the first spring and second spring, while position consistency when making each clear point of the first magnet, the second magnet, ensure the uniformity of offset output.
Description
Technical field
The present invention relates to sensor field, and in particular to wind pressure sensor.
Background technology
Wind pressure sensor is a kind of sensor the most commonly used in industrial practice, is called little differential pressure sensor, and it extensively should
For various industrial automatic control environment, it is related to boiler air-supply, cleaner, water conservancy and hydropower, railway traffic, intelligent building, production certainly
Numerous industries such as control, Aero-Space, military project, petrochemical industry, oil well, electric power, ship, lathe and pipeline, the work of wind pressure sensor are former
Manage and be：The pressure of wind pressure sensor is acted directly on the diaphragm of sensor, produces diaphragm directly proportional to pressure medium
Micro-displacement, the magnetic field of sensor is changed, and this change is detected with electronic circuit, final conversion output one corresponds to
The standard signal of this pressure.The blast switch of the single magnet structure of many of prior art, the inscribed pressure that is powered of sensor, leads to
Cross the change of the distance between magnet and Hall sensor and obtain curve of output, but this wind pressure sensor also has following lack
Fall into：
(1) magnet is not directlyed proportional to the distance change of Hall sensor to the change of output voltage, and the error of measurement is big, smart
Degree is poor；
(2) magnet easy run-off the straight during moving up and down, position during each clear point of magnet is made to have deviation,
It cannot be guaranteed that the uniformity of offset output.
As can be seen here, wind pressure sensor of the prior art also has that measurement error is big, low precision, it is impossible to ensures that zero point is defeated
The problem of uniformity gone out.
The content of the invention
The technical problems to be solved by the invention are that current wind pressure sensor also has that measurement error is big, low precision, no
The problem of can guarantee that the uniformity of offset output.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention there is provided a kind of wind pressure sensor, bag
Base and the upper lid being adapted with the base are included, chamber is formed between the base and upper lid, push pedal is provided with the chamber,
By diaphragm arrangement on the base, the middle part of the push pedal is sequentially provided with the first magnet from the bottom to top at the both ends of the push pedal
With the second magnet, the magnetic pole of first magnet and second magnet be arranged in parallel, first magnet and the second magnet
Side is provided with the Hall sensor for being connected and setting with circuit board, and the first spring is provided between the push pedal and the base, described
It is provided with second spring between push pedal and the upper lid, the base, which is provided with, is used for adjusting first spring and second spring
Compression factor and then regulation first magnet and the adjusting nut of the second magnet positions.
In such scheme, the push pedal is provided with the first mounting hole and the second mounting hole, first magnet and second
Magnet corresponds to be fixedly installed in first mounting hole and second mounting hole respectively.
In such scheme, the lower section of first mounting hole is provided with looping pit, the base and the first magnet phase
Corresponding position is provided with adjustable plate, and the middle part of the adjustable plate is provided with the first lug boss, and one end of first spring is arranged
In the outer peripheral face of first lug boss, the other end of first spring is arranged in the looping pit.
In such scheme, the top surface of second magnet is provided with the second lug boss, and one end of the second spring is arranged
In the outer peripheral face of second lug boss, the middle part of the upper lid position corresponding with second lug boss is provided with the 3rd
Lug boss, the other end of the second spring are set on the outer peripheral face of the 3rd lug boss.
In such scheme, the both ends of the base are provided with groove, and one end that two diaphragms are connected with the base is equal
Provided with the installation portion being adapted with the groove.
In such scheme, the adjusting nut is arranged between the base and the adjustable plate.
In such scheme, first spring, second spring, the first magnet and the second magnet are arranged at same vertical
In plane.
The present invention, during work, push pedal drives the first magnet and the second magnet to carry out displacement, by changing the first magnet and the
The positions of two magnets and then change the magnetic field intensity by Hall sensor, make the air pressure of input directly proportional with the signal of output,
Reach the purpose of measurement, using double magnet schemes, the magnetic field around Hall sensor is increased its measurement accuracy close to linearly,
The error of measurement is reduced, while double magnets be arranged in parallel, the distance moved during work is short, increases operating efficiency, and passes through the
The effect of one spring and second spring ensures perpendicularity when the first magnet and the second magnet move, while makes the first magnet, the
Position consistency during each clear point of two magnets, ensure the uniformity of offset output.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Embodiment
The present invention is described in detail with reference to specific embodiment and Figure of description.
As shown in figure 1, the invention provides a kind of wind pressure sensor, including base 100 and it is adapted with base 100 upper
Lid 200, chamber 300 is formed between base 100 and upper lid 200, is provided with push pedal 400 in chamber 300, the both ends of push pedal 400 pass through
Diaphragm 410 is arranged on base 100, and the middle part of push pedal 400 is sequentially provided with the first magnet 500 and the second magnet 510 from the bottom to top,
The magnetic pole of first magnet 500 and the second magnet 510 is be arranged in parallel, and the side of the first magnet 500 and the second magnet 510 is provided with and electricity
The Hall sensor 210 that the connection of road plate 220 is set, is provided with the first spring 800, the He of push pedal 400 between push pedal 400 and base 100
Second spring 810 is provided between upper lid 200, base 100 is provided with the pressure for being used for adjusting the first spring 800 and second spring 810
Contracting ratio and then the first magnet 500 of regulation and the adjusting nut 600 of the position of the second magnet 510.
The present invention operation principle be：
During use, the first magnet 500 and the second magnet 510 are oppositely arranged and produce magnetic field, and air inlet enters pressure, diaphragm
410 drive push pedal 400 to move in the presence of blast, and then drive the first magnet 500 and the second magnet 510 in push pedal 400
It is mobile, the magnetic field through Hall sensor 210 is changed, this change is passed to circuit board by Hall sensor 210
220, and then obtain corresponding change curve.Using double magnet schemes, make the magnetic field around Hall sensor 210 close linear,
And then make input air pressure proportional with output signal, it is connected in circuit, carries out the detection to circuit, and then reduce measurement
Error, the precision of measurement is improved, ensure the safety of circuit, while the first magnet 500, the magnetic pole of the second magnet 510 is parallel sets
Put, the distance moved during work is short, improves operating efficiency.And ensure the by the effect of the first spring 800 and second spring 810
Perpendicularity when one magnet 500 and the second magnet 510 move, increases measurement accuracy, while make the first magnet 500, the second magnet
Position consistency during 510 each clear point, ensure the uniformity of offset output, the first spring can adjust by adjusting nut 600
800 and second spring 810 compression factor so that adjust the first magnet 500 and the position of the second magnet 510, enable a customer to autonomous
Control when being in zero point state, by the magnetic field intensity of hall sensor 210, the requirement of different clients can be met.
Push pedal 400 is provided with the first mounting hole and the second mounting hole, and the first magnet 500 and the second magnet 510 correspond to respectively
It is fixedly installed in the first mounting hole and the second mounting hole, fixes the first magnet 500 and the relative position of the second magnet 510,
Prevent the measurement error brought by its skew.
The lower section of first mounting hole is provided with looping pit 430, and the position corresponding with the first magnet 500 of base 100 is provided with
Adjustable plate 700, adjusting nut 600 are arranged between base 100 and adjustable plate 700, and the middle part of adjustable plate 700 is provided with the first projection
Portion 710, one end of the first spring 800 are set in the outer peripheral face of the first lug boss 710, and the other end of the first spring 800 is arranged on
In looping pit 430, while preventing that the first spring 800 from coming off, the direction of motion of the first spring 800, accurate positioning ensure that.
The top surface of second magnet 510 is provided with the second lug boss 511, and one end of second spring 810 is set in the second lug boss
511 outer peripheral face, the middle part of upper lid 200 position corresponding with the second lug boss 511 are provided with the 3rd lug boss 230, and second
The other end of spring 810 is set on the outer peripheral face of the 3rd lug boss 230, while preventing that second spring 810 from coming off, ensure that
The direction of motion of second spring 810, accurate positioning.
The both ends of base 100 are provided with groove, and two diaphragms 410 are equipped with one end that base 100 is connected to be adapted with groove
Installation portion 411, the both ends of diaphragm 410 is connected firmly, prevent in the course of work of diaphragm 410 because of both ends connection loosening belt
Measurement error.
First spring 800, second spring 810, the first magnet 500 and the second magnet 510 are arranged at same perpendicular
It is interior, the perpendicularity of the first magnet 500 and the second magnet 510 is ensure that, makes Distribution of Magnetic Field uniform, reduces measurement error.
The present invention, during work, push pedal drives the first magnet and the second magnet to carry out displacement, by changing the first magnet and the
The positions of two magnets and then change the magnetic field intensity by Hall sensor, make the air pressure of input directly proportional with the signal of output,
Reach the purpose of measurement, using double magnet schemes, the magnetic field around Hall sensor is increased its measurement accuracy close to linearly,
The error of measurement is reduced, while double magnets be arranged in parallel, the distance moved during work is short, increases operating efficiency, and passes through the
The effect of one spring and second spring ensures perpendicularity when the first magnet and the second magnet move, while makes the first magnet, the
Position consistency during each clear point of two magnets, ensure the uniformity of offset output.
The present invention is not limited to above-mentioned preferred forms, and anyone should learn that the knot made under the enlightenment of the present invention
Structure changes, and the technical schemes that are same or similar to the present invention, each falls within protection scope of the present invention.
Claims (7)
1. wind pressure sensor, including base and the upper lid that is adapted with the base, chamber is formed between the base and upper lid,
It is provided with push pedal in the chamber, the both ends of the push pedal are by diaphragm arrangement on the base, it is characterised in that the push pedal
The first magnet and the second magnet are sequentially provided with from the bottom to top, the magnetic pole of first magnet and second magnet be arranged in parallel,
The side of first magnet and the second magnet is provided with the Hall sensor for being connected and setting with circuit board, the push pedal and the bottom
The first spring is provided between seat, second spring is provided between the push pedal and the upper lid, the base, which is provided with, to be used to adjust
The compression factor of first spring and second spring and then regulation first magnet and the adjusting nut of the second magnet positions.
2. wind pressure sensor as claimed in claim 1, it is characterised in that the push pedal is provided with the first mounting hole and the second peace
Hole is filled, first magnet and the second magnet correspond to be fixedly installed on first mounting hole and second mounting hole respectively
It is interior.
3. wind pressure sensor as claimed in claim 2, it is characterised in that the lower section of first mounting hole is provided with looping pit,
The base position corresponding with first magnet is provided with adjustable plate, and the middle part of the adjustable plate is provided with the first projection
Portion, one end of first spring are set in the outer peripheral face of first lug boss, and the other end of first spring is arranged on
In the looping pit.
4. wind pressure sensor as claimed in claim 1, it is characterised in that it is raised that the top surface of second magnet is provided with second
Portion, one end of the second spring are set in the outer peripheral face of second lug boss, the middle part of the upper lid and described second convex
The corresponding position in the portion of rising is provided with the 3rd lug boss, and the other end of the second spring is set in the outer of the 3rd lug boss
On side face.
5. wind pressure sensor as claimed in claim 1, it is characterised in that the both ends of the base are provided with groove, two films
Piece is equipped with the installation portion being adapted with the groove with one end that the base is connected.
6. wind pressure sensor as claimed in claim 3, it is characterised in that the adjusting nut be arranged on the base with it is described
Between adjustable plate.
7. wind pressure sensor as claimed in claim 1, it is characterised in that first spring, second spring, the first magnet and
Second magnet is arranged in same perpendicular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710683495.6A CN107402102A (en) | 2017-08-11 | 2017-08-11 | Wind pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710683495.6A CN107402102A (en) | 2017-08-11 | 2017-08-11 | Wind pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107402102A true CN107402102A (en) | 2017-11-28 |
Family
ID=60397566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710683495.6A Pending CN107402102A (en) | 2017-08-11 | 2017-08-11 | Wind pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107402102A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595665A (en) * | 2019-09-09 | 2019-12-20 | 上海钧嵌传感技术有限公司 | Pressure detection sensor and detection method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101498611A (en) * | 2009-03-17 | 2009-08-05 | 李岩峰 | Micro-differential pressure gauge |
| DE102008018018A1 (en) * | 2008-04-09 | 2009-10-15 | Continental Automotive Gmbh | Pump for conveying a fluid |
| CN102866232A (en) * | 2012-10-08 | 2013-01-09 | 中国矿业大学 | Automatic calibration method and device for gas sensor |
| CN203551184U (en) * | 2013-09-30 | 2014-04-16 | 江苏盛伟过滤设备有限公司 | Remote differential pressure gauge |
| WO2016131644A1 (en) * | 2015-02-18 | 2016-08-25 | Delphi International Operations Luxembourg S.À R.L. | Actuator assembly of a digital inlet valve |
| CN105938035A (en) * | 2016-06-30 | 2016-09-14 | 浙江华地电子有限公司 | Wind pressure sensor |
| CN205898353U (en) * | 2016-08-15 | 2017-01-18 | 浙江华地电子有限公司 | Pressure sensor |
| CN207066663U (en) * | 2017-08-11 | 2018-03-02 | 浙江华地电子有限公司 | Wind pressure sensor |
-
2017
- 2017-08-11 CN CN201710683495.6A patent/CN107402102A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008018018A1 (en) * | 2008-04-09 | 2009-10-15 | Continental Automotive Gmbh | Pump for conveying a fluid |
| CN101498611A (en) * | 2009-03-17 | 2009-08-05 | 李岩峰 | Micro-differential pressure gauge |
| CN102866232A (en) * | 2012-10-08 | 2013-01-09 | 中国矿业大学 | Automatic calibration method and device for gas sensor |
| CN203551184U (en) * | 2013-09-30 | 2014-04-16 | 江苏盛伟过滤设备有限公司 | Remote differential pressure gauge |
| WO2016131644A1 (en) * | 2015-02-18 | 2016-08-25 | Delphi International Operations Luxembourg S.À R.L. | Actuator assembly of a digital inlet valve |
| CN105938035A (en) * | 2016-06-30 | 2016-09-14 | 浙江华地电子有限公司 | Wind pressure sensor |
| CN205898353U (en) * | 2016-08-15 | 2017-01-18 | 浙江华地电子有限公司 | Pressure sensor |
| CN207066663U (en) * | 2017-08-11 | 2018-03-02 | 浙江华地电子有限公司 | Wind pressure sensor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595665A (en) * | 2019-09-09 | 2019-12-20 | 上海钧嵌传感技术有限公司 | Pressure detection sensor and detection method |
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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: 20171128 |
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| RJ01 | Rejection of invention patent application after publication |