CN110514330A - A kind of passive two-dimensional code pressure sensor and preparation method thereof - Google Patents
A kind of passive two-dimensional code pressure sensor and preparation method thereof Download PDFInfo
- Publication number
- CN110514330A CN110514330A CN201910728380.3A CN201910728380A CN110514330A CN 110514330 A CN110514330 A CN 110514330A CN 201910728380 A CN201910728380 A CN 201910728380A CN 110514330 A CN110514330 A CN 110514330A
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- China
- Prior art keywords
- dimensional code
- elastomer
- pressure
- sensor
- measurement portion
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Classifications
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- 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
- G01L1/04—Measuring force or stress, in general by measuring elastic deformation of gauges, e.g. of springs
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
- G06K7/1404—Methods for optical code recognition
- G06K7/1408—Methods for optical code recognition the method being specifically adapted for the type of code
- G06K7/1417—2D bar codes
Abstract
The embodiment of the invention provides a kind of passive two-dimensional code pressure sensor, the sensor includes: measurement portion, and the measurement portion is springy elastomer, and has a groove below the measurement portion, and the groove can be connect with device pressure export to be measured；Two dimensional code, the two dimensional code etching is in the measurement portion top；Wherein, after the groove is under pressure, the elastomer is made to generate deformation, so that the two dimensional code be made to generate deformation.It solves pressure sensor in the prior art and needs external power supply, need to be powered preheating, leads to the technical problem that measurement efficiency is low, has reached the work of pressure sensor non-transformer, has improved the stability of pressure sensor, while reducing the technical effect of cost.
Description
Technical field
The present invention relates to sensor technical field more particularly to a kind of passive two-dimensional code pressure sensor and its preparation sides
Method.
Background technique
Conventional pressure sensor is generally made of four part such as elastomer, insulator, strain gauge, power supply.When work, pressure
Power acts on elastomer first, and making elastomer, deformation occurs, this deformation leads to insulator and passes to strain gauge, and strain gauge occurs
Deformation causes the variation of strain gauge Wheatstone bridge resistance value, adds suitable voltage to the Wheatstone bridge resistance of strain gauge, into
And a voltage difference (pressure output electric signal) is generated in output end, this voltage difference and the pressure acted on elastomer are at just
The relationship of ratio.
But present invention applicant during technical solution, has found the above-mentioned prior art extremely in realizing the embodiment of the present invention
It has the following technical problems less:
Sensor in the prior art needs external power supply, and need to be powered preheating, transmits pressure by insulator, causes to survey
The low technical problem of amount efficiency.
Summary of the invention
The embodiment of the invention provides a kind of passive two-dimensional code pressure sensors, to solve sensor in the prior art
External power supply is needed, need to be powered preheating, transmits pressure by insulator, leads to the technical problem that measurement efficiency is low.
On the one hand, to solve the above-mentioned problems, the embodiment of the invention provides a kind of passive two-dimensional code pressure sensor, institutes
Stating sensor includes: measurement portion, and the measurement portion is springy elastomer, and has a groove below the measurement portion,
The groove can be connect with device pressure export to be measured；Two dimensional code, the two dimensional code etching is in the measurement portion top；Its
In, after the groove is under pressure, the elastomer is made to generate deformation, so that the two dimensional code be made to generate deformation.
Preferably, the material of the elastomer is elastic material.
Preferably, the model of the elastic material include 17-4ph stainless steel, 15-15ph stainless steel, 2Cr13 stainless steel,
40CrNiMu elastic alloy.
Preferably, it is tightly connected at the pressure export of the groove and the device to be measured.
Second aspect, it is described the embodiment of the present application also provides a kind of preparation method of passive two-dimensional code pressure sensor
Method includes: to process elastomer portion according to transducer range；The elastomer is heat-treated, the elastomer is eliminated
Residual stress and retained austenite；Two dimensional code is etched on the elastomer；According to the deformation quantity after the two dimensional code stress, really
The fixed elastomer and the two dimensional code deformation quantity corresponding pressure value；The two dimensional code is scanned by two-dimensional code scanning instrument, is read
Pressure force value.
Preferably, the deformation quantity according to the two dimensional code after by pressure, determines the elastomer and the two dimensional code
Deformation quantity corresponding pressure value, comprising: the pressure value for applying different pressures to the measurement portion records the elastomer by not
With pressure pressure value when, the deformation quantity of the two dimensional code；By the different pressures value and the different pressures value corresponding two
Dimension code deformation quantity is brought into linear equation, and the measurement model of the sensor is established；According to the measurement model and the two dimension
The deformation quantity of code, determines the elastomer and the two dimensional code deformation quantity corresponding pressure value.
Said one or multiple technical solutions in the embodiment of the present invention at least have following one or more technology effects
Fruit:
The embodiment of the invention provides a kind of passive two-dimensional code pressure sensors, and the sensor includes: measurement portion, described
Measurement portion is springy elastomer, and has a groove below the measurement portion, and the groove can be with device pressure to be measured
Power outlet connection；Two dimensional code, the two dimensional code etching is in the measurement portion top；Wherein, after the groove is under pressure, make institute
It states elastomer and generates deformation, so that the two dimensional code be made to generate deformation.It is outer to solve pressure sensor needs in the prior art
Power supply is connect, need to be powered preheating, leads to the technical problem that measurement efficiency is low, has reached the work of pressure sensor non-transformer, has mentioned
The stability of high pressure force snesor, while reducing the technical effect of cost.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram of the passive two-dimensional code pressure sensor provided in the embodiment of the present invention；
Fig. 2 is a kind of top view of the passive two-dimensional code pressure sensor provided in the embodiment of the present invention；
Fig. 3 is a kind of flow chart of the preparation method of the passive two-dimensional code pressure sensor provided in the embodiment of the present invention.
Appended drawing reference: measurement portion 1, two dimensional code 2.
Specific embodiment
The embodiment of the invention provides a kind of passive two-dimensional code pressure sensors, solve pressure sensing in the prior art
Device needs external power supply, and need to be powered preheating, leads to the technical problem that measurement efficiency is low.
Technical solution in the embodiment of the present invention, overall structure are as follows: measurement portion, and the measurement portion is springy bullet
Property body, and there is a groove below the measurement portion, the groove can connect with device pressure export to be measured；Two dimensional code, institute
Two dimensional code etching is stated in the measurement portion top；Wherein, after the groove is under pressure, the elastomer is made to generate deformation, from
And the two dimensional code is made to generate deformation.Reach the work of pressure sensor non-transformer, improves the stability of pressure sensor, simultaneously
Reduce the technical effect of cost.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Embodiment one
The embodiment of the invention provides a kind of passive two-dimensional code pressure sensors, please refer to Fig. 1-2, the sensor packet
It includes:
Measurement portion 1, the measurement portion 1 is springy elastomer, and has a groove, institute below the measurement portion 1
Stating groove can connect with device pressure export to be measured；Two dimensional code 2, the etching of two dimensional code 2 is in 1 top of measurement portion；Its
In, after the groove is under pressure, the elastomer is made to generate deformation, so that the two dimensional code be made to generate deformation.Further,
It is tightly connected at the pressure export of the groove and the device to be measured.
Specifically, the material of the measurement portion 2 is a kind of elastomer material with certain elasticity, guarantee after by pressure
Deformation can be generated and restore deformation when not by pressure, measurement portion 1 be cap-like structure, below have a groove, for to
The pressure export of measurement equipment connects, i.e., measurement portion 1 is covered on Devices to test pressure export, and is sealed to outlet, prevents from pressing
Power leakage, shape and the cross-sectional shape at Devices to test pressure export of measurement portion 1 match, for example, Devices to test outlet is horizontal
Section is circle, then the interior cross section of 1 groove of measurement portion is also round, and the radius phase of radius and Devices to test exit cross-section
Together.It is also possible to other shapes, the application is not specifically limited this.When measurement portion 1 is mounted at Devices to test pressure export
When, pressure to be measured is exerted pressure from export direction to measurement portion 1, so that measurement portion 1 generates deformation, is carved on 1 top of measurement portion
Erosion has two dimensional code 4, i.e., identical as pressure direction is applied, since measurement portion 1 is generated deformation by external force, so that etching is being surveyed
Two dimensional code 4 in amount portion 1 generates deformation simultaneously, further, can be spiral connection between measurement portion 1 and Devices to test,
It can be sealed by a seal ring connection, and then it is good to reach sealing effect, the accurate effect of measurement result.
Further, the material of the elastomer is elastic material.The model of the elastic material includes 17-4ph stainless
Steel, 15-15ph stainless steel, 2Cr13 stainless steel, 40CrNiMu elastic alloy.
Specifically, the material of the elastomer of measurement portion 1 can be elastic material, common model includes 17-4ph stainless
Steel, 15-15ph stainless steel, 2Cr13 stainless steel, 40CrNiMu elastic alloy etc., the material of elastomer is also possible to other can
Reach the other materials of same or similar effect, equally includes other existing or following that will be apparent that with identical or phase
The new material of nearly attribute.The elastically-deformable range of the elastomer is, such as takes 1 meter of long elastomer, by certain external force
Effect after deformation be not more than 1000 microns, and external force releasing after resile.
Passive pressure measurement may be implemented in the pressure sensor that the embodiment of the present application passes through；Pressure measurement is eliminated to need to lead to
The problem of electric preheating, realizes measurement pressure immediately；Improve the response speed of pressure measurement；The sluggishness of the pressure that disappeared transmitting institute's band,
Creep equal error；The problems such as eliminating cable and electrical cnnector and sealing.Realize the work of pressure sensor non-transformer；Because
Unpowered power supply improves the stability of pressure sensor so just without being powered to pressure sensor bring thermal drift；
Cost is reduced than conventional pressure sensor very much, because such pressure sensor does not need power supply and transmission cable and electrical connection
Device；Simple production process is at low cost；It is highly suitable in the environment of long-term work and power supply inconvenience.
Embodiment two
The embodiment of the present application also provides a kind of preparation method of passive two-dimensional code pressure sensor as shown in figure 3, using
The sensor described in embodiment one, comprising:
Step 110: processing elastomer portion according to transducer range；
Step 120: the elastomer being heat-treated, residual stress and the retained austenite of the elastomer are eliminated；
Step 130: etching two dimensional code on the elastomer；
Step 140: according to the deformation quantity after the two dimensional code stress, determining the elastomer and the two dimensional code deformation quantity
Corresponding pressure value；
Step 150: the two dimensional code being scanned by two-dimensional code scanning instrument, reads pressure value.
Specifically, the elastomer for meeting range needs is processed first, in accordance with the needs of different ranges, according to range
It needs, determines the size and depth information of elastomer；Then the elastomer for determining size is heat-treated, to eliminate
Retained austenite in the residual stress and material structure of machining is finally reached the stability of material of requirement；And it is handling
Item end on elastomer afterwards far from fixed part etches original two-dimensional code；Then formulate the measurement standard of pressure sensor, load
Pressure (or normal pressure) F and when recording different pressures (or normal pressure) F value two dimensional code corresponding pattern --- calibration, finally
Matched two-dimensional code scanning instrument is selected, two dimensional code is scanned, reads pressure value.
Further, the deformation quantity according to the two dimensional code after by pressure, determines the elastomer and the two dimension
Code deformation quantity corresponding pressure value, comprising: to the measurement portion apply different pressures pressure value, record the elastomer by
When the pressure value of different pressures, the deformation quantity of the two dimensional code；The different calibration power are corresponding from the different calibration power
Two dimensional code deformation quantity is brought into linear equation, and the measurement model of the sensor is established；According to the measurement model and described two
The deformation quantity for tieing up code, determines the elastomer and the two dimensional code deformation quantity corresponding pressure value.
For example, the pressure value for applying different pressures to the measurement portion, records the elastomer by different pressures
When the pressure of power, two dimensional code is relative to the deformation quantity generated when not being under pressure and acting on, for example, two dimensional code is not being pressed
The masterpiece used time is original two-dimensional code figure, and at this moment deformation quantity is 0, and when being acted on by 1MPa pressure, two-dimension code pattern is due to bullet
Property body property occur become, to generate graphic change, by this time two-dimension code pattern and original two-dimensional code figure compare, obtain
Corresponding two dimensional code deformation quantity is acted on by 1MPa pressure.As described above, recording multiple stress condition respectively, by described in not
It is brought into linear equation y=kx+b with calibration power two dimensional code deformation quantity corresponding with the different calibration power, wherein x and y distinguishes
Represent the pressure being subject to and two dimensional code deformation quantity.The measurement model for determining sensor, when needing using the pressure sensor
When carrying out pressure measurement, the groove of measurement portion is similar to lid bottle cap and is equally covered at pressure export, is measured with load sensor
The dimensional code scanner of model is scanned the sensor two dimensional code, can read the size of pressure.
The technical solution provided in the embodiment of the present invention, has at least the following technical effects or advantages:
The embodiment of the invention provides a kind of passive two-dimensional code pressure sensors, and the sensor includes: measurement portion, described
Measurement portion is springy elastomer, and has a groove below the measurement portion, and the groove can be with device pressure to be measured
Power outlet connection；Two dimensional code, the two dimensional code etching is in the measurement portion top；Wherein, after the groove is under pressure, make institute
It states elastomer and generates deformation, so that the two dimensional code be made to generate deformation.It is outer to solve pressure sensor needs in the prior art
Power supply is connect, need to be powered preheating, leads to the technical problem that measurement efficiency is low, has reached the work of pressure sensor non-transformer, has mentioned
The stability of high pressure force snesor, while reducing the technical effect of cost.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications can be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, those skilled in the art can carry out various modification and variations without departing from this hair to the embodiment of the present invention
The spirit and scope of bright embodiment.In this way, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention
And its within the scope of equivalent technologies, then the present invention is also intended to include these modifications and variations.
Claims (6)
1. a kind of passive two-dimensional code pressure sensor, which is characterized in that the sensor includes:
Measurement portion, the measurement portion is springy elastomer, and has a groove below the measurement portion, and the groove can
It is connect with device pressure export to be measured；
Two dimensional code, the two dimensional code etching is in the measurement portion top；
Wherein, after the groove is under pressure, the elastomer is made to generate deformation, so that the two dimensional code be made to generate deformation.
2. sensor as described in claim 1, which is characterized in that the material of the elastomer is elastic material.
3. sensor as claimed in claim 2, which is characterized in that the model of the elastic material include 17-4ph stainless steel,
15-15ph stainless steel, 2Cr13 stainless steel, 40CrNiMu elastic alloy.
4. sensor as described in claim 1, which is characterized in that at the pressure export of the groove and the device to be measured
It is tightly connected.
5. a kind of preparation method of passive two-dimensional code pressure sensor, which is characterized in that the method is used to prepare right such as and wants
Any one power of 1-4 is asked to remove the sensor, which comprises
Elastomer portion is processed according to transducer range；
The elastomer is heat-treated, residual stress and the retained austenite of the elastomer are eliminated；
Two dimensional code is etched on the elastomer；
According to deformation quantity of the two dimensional code after by pressure, elastomer pressure corresponding with the two dimensional code deformation quantity is determined
Value；
The two dimensional code is scanned by two-dimensional code scanning instrument, reads pressure value.
6. method as claimed in claim 5, which is characterized in that the deformation quantity according to after the two dimensional code stress determines
The elastomer and the two dimensional code deformation quantity corresponding pressure value, comprising:
The pressure value for applying different pressures to the measurement portion, when recording pressure value of the elastomer by different pressures, institute
State the deformation quantity of two dimensional code；
Different pressures value two dimensional code deformation quantity corresponding with the different pressures value is brought into linear equation, described in foundation
The measurement model of sensor；
According to the deformation quantity of the measurement model and the two dimensional code, determine that the elastomer is corresponding with the two dimensional code deformation quantity
Pressure value.
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| CN201910728380.3A CN110514330A (en) | 2019-08-08 | 2019-08-08 | A kind of passive two-dimensional code pressure sensor and preparation method thereof |
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| CN201910728380.3A CN110514330A (en) | 2019-08-08 | 2019-08-08 | A kind of passive two-dimensional code pressure sensor and preparation method thereof |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2545589Y (en) * | 2002-05-21 | 2003-04-16 | 雷卫武 | High-performance strain alloy nanofilm pressure sensor |
| WO2004018965A1 (en) * | 2002-08-20 | 2004-03-04 | Reginald Vachon | Compressed symbology strain gauge |
| US20090225167A1 (en) * | 2008-03-10 | 2009-09-10 | Shimadzu Corporation | Gauge line position measuring device, program for measuring a gauge line position, and gauge line mark |
| US20090326836A1 (en) * | 2006-08-17 | 2009-12-31 | Gregory L Hovis | Two dimensional bar code having increased accuracy |
| CN103376065A (en) * | 2012-04-26 | 2013-10-30 | 北京隆盛泰科石油管科技有限公司 | Classified bar code extensometer system and method for measuring whole stress-strain curve |
| EP1782038B1 (en) * | 2004-07-15 | 2014-08-13 | General Electric Company | Finite element analysis fatigue gage |
| CN204154433U (en) * | 2014-09-10 | 2015-02-11 | 中国电子科技集团公司第四十八研究所 | A kind of compressive resilience body |
| CN204177522U (en) * | 2014-10-20 | 2015-02-25 | 中国电子科技集团公司第四十八研究所 | A kind of pressure transducer |
| CN205426389U (en) * | 2015-11-30 | 2016-08-03 | 华南理工大学 | Force measuring device based on image recognition |
| CN106248268A (en) * | 2016-08-31 | 2016-12-21 | 西安中星测控有限公司 | A kind of strain gauge transducer and preparation method thereof |
-
2019
- 2019-08-08 CN CN201910728380.3A patent/CN110514330A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2545589Y (en) * | 2002-05-21 | 2003-04-16 | 雷卫武 | High-performance strain alloy nanofilm pressure sensor |
| WO2004018965A1 (en) * | 2002-08-20 | 2004-03-04 | Reginald Vachon | Compressed symbology strain gauge |
| EP1782038B1 (en) * | 2004-07-15 | 2014-08-13 | General Electric Company | Finite element analysis fatigue gage |
| US20090326836A1 (en) * | 2006-08-17 | 2009-12-31 | Gregory L Hovis | Two dimensional bar code having increased accuracy |
| US20090225167A1 (en) * | 2008-03-10 | 2009-09-10 | Shimadzu Corporation | Gauge line position measuring device, program for measuring a gauge line position, and gauge line mark |
| CN103376065A (en) * | 2012-04-26 | 2013-10-30 | 北京隆盛泰科石油管科技有限公司 | Classified bar code extensometer system and method for measuring whole stress-strain curve |
| CN204154433U (en) * | 2014-09-10 | 2015-02-11 | 中国电子科技集团公司第四十八研究所 | A kind of compressive resilience body |
| CN204177522U (en) * | 2014-10-20 | 2015-02-25 | 中国电子科技集团公司第四十八研究所 | A kind of pressure transducer |
| CN205426389U (en) * | 2015-11-30 | 2016-08-03 | 华南理工大学 | Force measuring device based on image recognition |
| CN106248268A (en) * | 2016-08-31 | 2016-12-21 | 西安中星测控有限公司 | A kind of strain gauge transducer and preparation method thereof |
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Application publication date: 20191129 |