CN110440962A - A kind of multrirange pressure sensor and the pressure controller with it - Google Patents
A kind of multrirange pressure sensor and the pressure controller with it Download PDFInfo
- Publication number
- CN110440962A CN110440962A CN201910212184.0A CN201910212184A CN110440962A CN 110440962 A CN110440962 A CN 110440962A CN 201910212184 A CN201910212184 A CN 201910212184A CN 110440962 A CN110440962 A CN 110440962A
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- Prior art keywords
- pressure sensor
- pressure
- multrirange
- controller
- circuit
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- 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.)
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- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 239000011888 foil Substances 0.000 claims description 23
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process 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
- G01L1/26—Auxiliary measures taken, or devices used, in connection with the measurement of force, e.g. for preventing influence of transverse components of force, for preventing overload
-
- 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
- G01L19/0618—Overload protection
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a kind of multrirange pressure sensor and with its pressure controller, first pressure sensor, second pressure sensor and third pressure sensor including being sequentially connected in series setting；Deformation gap is equipped between the first pressure sensing and the second pressure sensor and the second pressure sensor and the third pressure sensor；The pressure sensing result of the first pressure sensor, second pressure sensor and third pressure sensor receives circuit connection with pressure transmission circuit connection, the pressure transmission circuit and the pressure respectively；The measuring range of the first pressure sensor is less than the measuring range of second pressure sensor, and the measuring range of the second pressure sensor is less than the measuring range of third pressure sensor.Apparatus of the present invention structure is simple, low in cost, and measuring accuracy is high, applied widely, is with a wide range of applications.
Description
Technical field
The present invention relates to pressure controller technical fields, and in particular to a kind of multrirange pressure sensor and the pressure with it
Force controller.
Background technique
In automatic production line press fitting and test equipment industry, we can use according to actual needs and arrive different ranges
Force snesor is to monitor force value or as the signal of control, that is to say, that small-measuring range force transducer conduct in actual application
Control signal needs very high precision, while being also required to as monitoring force value signal when measuring range is larger in wide range
Certain precision.For meet demand, if directlying adopt the force snesor of wide range, precision is insufficient when can have small-range measurement
The case where, cause equipment precision inadequate；If the force snesor of two ranges of purchase is used in series, need to increase small-range power sensing
The overload protecting mechanism of device causes mechanism complicated and is not easy to mount and dismount；And double-range pressure sensing in the prior art
Body product it is all huger and be substantially all by foreign countries monopolized, cost is usually 5-10 times of single pressure sensor.Mirror
In this, how the double-range pressure that a kind of structure is simple, volume is sized for demand, low in cost, measurement accuracy is high is provided and is passed
Sensor is the technical problem that those skilled in the art need to solve.
Summary of the invention
For the defects in the prior art, first aspect present invention is to provide that a kind of structure is simple, volume is sized for needing
It asks, is low in cost, the multrirange pressure sensor that measurement accuracy is high；
Another aspect of the present invention provides the pressure controller with above-mentioned multrirange pressure sensor.
A kind of multrirange pressure sensor of first aspect present invention, the first pressure including being sequentially connected in series setting sense
Device, second pressure sensor and third pressure sensor；The first pressure sensing and the second pressure sensor and institute
It states and is equipped with deformation gap between second pressure sensor and the third pressure sensor；The first pressure sensor, second
The pressure sensing result of pressure sensor and third pressure sensor respectively with pressure transmission circuit connection, pressure transmission electricity
Road and the pressure receive circuit connection；The measuring range of the first pressure sensor is less than the measurement of second pressure sensor
Range, the measuring range of the second pressure sensor are less than the measuring range of third pressure sensor.
Multrirange pressure sensor of the present invention gathers together multiple range pressure sensor, reduces volume, reduces
Cost, and the deformation of first pressure sensor and second pressure sensor counteracts the deformation gap of itself, do not continue to become
Shape plays and protects the sensor against the risk easy to damage more than range, improves the service life and measuring accuracy of device.
Preferably, the first pressure sensor includes first pressure sensor ontology and first pressure foil gauge, described
First pressure foil gauge is arranged in the first pressure sensor ontology；The second pressure sensor includes that second pressure passes
Sensor ontology and second pressure foil gauge, the second pressure foil gauge are arranged in the second pressure sensor body；Institute
Stating third pressure sensor includes third pressure sensor body and third pressure-strain piece, the second pressure foil gauge setting
In the third pressure sensor body.
Preferably, the first pressure foil gauge, second pressure foil gauge and third pressure-strain piece and the pressure pass
Defeated circuit connection.
Preferably, the first pressure sensor ontology and second pressure sensor body by be uniformly arranged and quantity not
Bolt less than four interconnects.
Preferably, the second pressure sensor body and the third pressure sensor body pass through connection axis connection.
Preferably, the connecting shaft prolongs Shen in the third pressure sensor after passing through the third pressure sensor body
Outer body.
Preferably, the connecting shaft is connected in second pressure sensor body and the third pressure sensor body
Heart position.
Preferably, the first pressure sensor ontology passes through several threaded holes being arranged thereon and the parts to be tested connects
It connects.
Preferably, the pressure transmission circuit further includes signal amplification circuit and filter circuit.
A kind of pressure controller of another aspect of the present invention, comprising: the multrirange pressure sensor of any of the above-described；Control
Device, the input terminal of the controller and the pressure receive circuit connection；Action drives circuit, the output end of the controller with
The input terminal of the action drives circuit connects；Microswitch, the input terminal of the microswitch and the action drives circuit
Connection.
Pressure signal in the present invention in multrirange pressure sensor receives circuit through pressure and is transferred in controller, then
Controller judges the pressure value of multrirange pressure sensor according to the signal of reading, to be judged according to preset value
Whether need to take further movement；Finally, action message is transferred to movement and driven by controller when needing to issue control action
Dynamic model block is driven microswitch disconnecting circuit by action drives module, achievees the purpose that automatic control.
The beneficial effects of the present invention are embodied in:
(1) multrirange pressure sensor of the present invention gathers together multiple range pressure sensor, reduces volume, drop
Low cost, and the deformation of first pressure sensor and second pressure sensor counteracts the deformation gap of itself, does not continue to
Deformation, plays and protects the sensor against the risk easy to damage more than range, improve the service life and measuring accuracy of device；
(2) pressure sensor of three different ranges is mutually connected in series by apparatus of the present invention, utilizes small-range pressure sensor
When deformation reaches ultimate attainment, overload protection is provided by wide range pressure sensor, and then realizes three different range pressure sensings
The beneficial effect that device is used in series；
(3) three concatenated sensor tests are more preferable compared to measuring accuracy for single sensor, and small accurate sensor
Without additional overload protection arrangement, the volume of product is virtually reduced, the scope of application is wider；
(4) apparatus of the present invention structure is simple, low in cost, and measuring accuracy is high, applied widely, before having a wide range of applications
Scape.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar element
Or part is generally identified by similar appended drawing reference.In attached drawing, each element or part might not be drawn according to actual ratio.
Fig. 1 is the schematic perspective view of multrirange of embodiment of the present invention pressure sensor；
Fig. 2 is the overlooking structure diagram of multrirange of embodiment of the present invention pressure sensor；
Fig. 3 is the schematic cross-sectional view of multrirange of embodiment of the present invention pressure sensor；
Fig. 4 is the electrical block diagram of multrirange of embodiment of the present invention pressure sensor；
Fig. 5 is the electrical block diagram of pressure controller of the embodiment of the present invention.
In attached drawing:
100- multrirange pressure sensor；
1- first pressure sensor, 11- first pressure sensor ontology, 12- first pressure foil gauge；
2- second pressure sensor, 21- second pressure sensor body, 22- second pressure foil gauge；
3- third pressure sensor, 31- third pressure sensor body, 32- third pressure-strain piece；
4- pressure transmission circuit, 5- pressure receive circuit, 6- connecting shaft, 7- bolt, 8- threaded hole；
200- pressure controller, 201- controller, 202- action drives circuit, 203- microswitch.
Specific embodiment
It is described in detail below in conjunction with embodiment of the attached drawing to technical solution of the present invention.Following embodiment is only used for
Clearly illustrate technical solution of the present invention, therefore be only used as example, and cannot be used as a limitation and limit protection model of the invention
It encloses.
It should be noted that unless otherwise indicated, technical term or scientific term used in this application should be this hair
The ordinary meaning that bright one of ordinary skill in the art are understood.
The bellows type pressure sensor of first aspect according to embodiments of the present invention is described below in conjunction with attached drawing.
Refering to shown in attached drawing 1- Fig. 4, a kind of multrirange pressure sensor 100 of the embodiment of the present invention, including be sequentially connected in series
First pressure sensor 1, second pressure sensor 2 and the third pressure sensor 3 of setting；The first pressure sensing 1 and institute
It states and is equipped with deformation seam between second pressure sensor 2 and the second pressure sensor 2 and the third pressure sensor 3
Gap；The pressure sensing result of the first pressure sensor 1, second pressure sensor 2 and third pressure sensor 3 respectively with pressure
Power transmission circuit 4 connects, and the pressure transmission circuit 4 receives circuit 5 with the pressure and connect；The first pressure sensor 1
Measuring range be less than the measuring range of second pressure sensor 2, the measuring range of the second pressure sensor 2 is less than third
The measuring range of pressure sensor 3；The first pressure sensor 1 includes that first pressure sensor ontology 11 and first pressure are answered
Become piece 12, the first pressure foil gauge 12 is arranged in the first pressure sensor ontology 11；The second pressure sensing
Device 2 includes second pressure sensor body 21 and second pressure foil gauge 22, and the second pressure foil gauge 22 is arranged described
In second pressure sensor body 21；The third pressure sensor 3 includes third pressure sensor body 31 and third pressure
Foil gauge 32, the second pressure foil gauge 32 are arranged in the third pressure sensor body 31；The first pressure is answered
Become piece 12, second pressure foil gauge 22 and third pressure-strain piece 32 to connect with the pressure transmission circuit 4；The first pressure
Sensor body 11 and second pressure sensor body 21 are interconnected by the bolt 7 being uniformly arranged and quantity is four；Institute
It states second pressure sensor body 21 and is connect with the third pressure sensor body 31 by connecting shaft 6；The connecting shaft 6
Prolong Shen after the third pressure sensor body 31 in 31 outside of third pressure sensor body；The connecting shaft 6
It is connected to the center of second pressure sensor body 21 Yu the third pressure sensor body 31；The first pressure passes
Sensor ontology 11 passes through several threaded holes 8 being arranged thereon and connect with the parts to be tested；The pressure transmission circuit 4 includes signal
Amplifying circuit and filter circuit.
When work, connecting shaft 6 is connect with support member first, by the threaded hole 8 on first pressure sensor ontology 11
It is connect with pressure the parts to be tested, first pressure sensor ontology 11 is mutually connected with second pressure sensor body 21 by bolt 7
It connects；Then first pressure foil gauge 12, second pressure foil gauge 22 and third pressure-strain piece 32 are passed through into pressure transmission respectively
Circuit 4 receives circuit 5 with pressure and connect；When the parts to be tested passes to the pressure of first pressure sensor ontology 11 less than the first pressure
When itself range of force snesor ontology 11, the pressure signal that first pressure sensor ontology 11 will test passes through pressure transmission
Circuit 4 is transferred to be received in circuit 5 with pressure, is reached using first pressure sensor 1 and is tested the beneficial effect of small-range power
Fruit effectively increases the precision of test；When the pressure that the parts to be tested passes to first pressure sensor ontology 11 is greater than the first pressure
When 1 range of force snesor, the deformation of first pressure sensor ontology 11 reaches maximum and offsets first pressure sensor ontology 11
Deformation gap between second pressure sensor body 21, does not continue to deform, and plays the mesh of protection first pressure sensor 1
's；Then the second pressure foil gauge 22 in second pressure sensor 2 starts to generate deformation, using pressure transmission circuit 4 to pressure
Power receives 5 output pressure test value of circuit, achievees the purpose that different range pressure sensors are used in series.Similarly, when measurement
When pressure is more than 2 range of second pressure sensor, its deformation gap is offset in the deformation of second pressure sensor 2, does not continue to become
Shape plays the purpose of protection second pressure sensor 2；Then the third pressure-strain piece 32 in third pressure sensor 3 starts
Deformation is generated, receives 5 output pressure test value of circuit, multrirange pressure sensing of the present invention to pressure using pressure transmission circuit 4
Device 100 gathers together multiple range pressure sensor, reduces volume, reduces costs, and 1 He of first pressure sensor
The deformation of second pressure sensor 2 counteracts the deformation gap of itself, does not continue to deform, and plays to protect the sensor against and is more than
Range risk easy to damage improves the service life and measuring accuracy of device.
Refering to shown in attached drawing 5, a kind of pressure controller 200 of the embodiment of the present invention comprising multrirange pressure sensor
100；Controller 201, the input terminal of the controller 201 receive circuit 5 with the pressure and connect；Action drives circuit 202,
The output end of the controller 201 is connect with the input terminal of the action drives circuit 202；Microswitch 203, it is described miniature
The input terminal of switch 203 is connect with the action drives circuit 202.In the embodiment of the present invention in multrirange pressure sensor 100
Pressure signal through pressure receive circuit 5 be transferred in controller 201, then controller 201 judges according to the signal of reading
The pressure value of multrirange pressure sensor 100 out, to judge whether need to take further movement according to preset value；
Finally, action message is transferred to action drives module 202 by controller 201, by action drives when needing to issue control action
Module 202 drives 203 disconnecting circuit of microswitch, achievees the purpose that automatic control.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme should all cover within the scope of the claims and the description of the invention.
Claims (10)
1. a kind of multrirange pressure sensor, which is characterized in that first pressure sensor, the second pressure including being sequentially connected in series setting
Force snesor and third pressure sensor；The first pressure sensing and the second pressure sensor and the second pressure
Deformation gap is equipped between sensor and the third pressure sensor；The first pressure sensor, second pressure sensor
With the pressure sensing result of third pressure sensor respectively with pressure transmission circuit connection, the pressure transmission circuit and the pressure
Power receives circuit connection；The measuring range of the first pressure sensor is less than the measuring range of second pressure sensor, described
The measuring range of second pressure sensor is less than the measuring range of third pressure sensor.
2. a kind of multrirange pressure sensor according to claim 1, which is characterized in that the first pressure sensor packet
First pressure sensor ontology and first pressure foil gauge are included, the first pressure foil gauge setting is sensed in the first pressure
In device ontology；
The second pressure sensor includes second pressure sensor body and second pressure foil gauge, the second pressure strain
Piece is arranged in the second pressure sensor body；
The third pressure sensor includes third pressure sensor body and third pressure-strain piece, the second pressure strain
Piece is arranged in the third pressure sensor body.
3. a kind of multrirange pressure sensor according to claim 2, which is characterized in that the first pressure foil gauge,
Second pressure foil gauge and third pressure-strain piece and the pressure transmission circuit connection.
4. a kind of multrirange pressure sensor according to claim 2 or 3, which is characterized in that the first pressure sensing
Device ontology and second pressure sensor body, which pass through, to be uniformly arranged and quantity is no less than four bolts and interconnects.
5. a kind of multrirange pressure sensor according to claim 2 or 3, which is characterized in that the second pressure sensing
Device ontology and the third pressure sensor body pass through connection axis connection.
6. a kind of multrirange pressure sensor according to claim 5, which is characterized in that the connecting shaft passes through described the
Prolong Shen after three pressure sensor bodies on the outside of the third pressure sensor body.
7. a kind of multrirange pressure sensor according to claim 5, which is characterized in that the connecting shaft is connected to second
The center of pressure sensor body and the third pressure sensor body.
8. a kind of multrirange pressure sensor according to claim 2, which is characterized in that the first pressure sensor sheet
Body passes through several threaded holes being arranged thereon and connect with the parts to be tested.
9. a kind of multrirange pressure sensor according to claim 1, which is characterized in that the pressure transmission circuit also wraps
Include signal amplification circuit and filter circuit.
10. a kind of pressure controller characterized by comprising
The described in any item multrirange pressure sensors of right 1-9；
Controller, the input terminal of the controller and the pressure receive circuit connection；
Action drives circuit, the output end of the controller are connect with the input terminal of the action drives circuit；
Microswitch, the input terminal of the microswitch and the action drives circuit connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910212184.0A CN110440962B (en) | 2019-03-20 | 2019-03-20 | Multi-range pressure sensor and pressure controller with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910212184.0A CN110440962B (en) | 2019-03-20 | 2019-03-20 | Multi-range pressure sensor and pressure controller with same |
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| Publication Number | Publication Date |
|---|---|
| CN110440962A true CN110440962A (en) | 2019-11-12 |
| CN110440962B CN110440962B (en) | 2024-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910212184.0A Active CN110440962B (en) | 2019-03-20 | 2019-03-20 | Multi-range pressure sensor and pressure controller with same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112710418A (en) * | 2020-12-10 | 2021-04-27 | 苏州汇才土水工程科技有限公司 | Series sensor and measuring method |
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| Publication number | Publication date |
|---|---|
| CN110440962B (en) | 2024-05-14 |
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Effective date of registration: 20221110 Address after: 213000 17-8, No. 180, Guanhe West Road, Zhonglou District, Changzhou City, Jiangsu Province Applicant after: CHANGZHOU TIANLI INTELLIGENT CONTROL CO.,LTD. Applicant after: CHINA NUCLEAR POWER ENGINEERING Co.,Ltd. Address before: 213000 17-8, No. 180, Guanhe West Road, Zhonglou District, Changzhou City, Jiangsu Province Applicant before: CHANGZHOU TIANLI INTELLIGENT CONTROL CO.,LTD. |
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