CN102062652A - Pressure sensor device using flexible inducting material mixed with micro construction bodies and pressure signal inducting method - Google Patents
Pressure sensor device using flexible inducting material mixed with micro construction bodies and pressure signal inducting method Download PDFInfo
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- CN102062652A CN102062652A CN2009102124934A CN200910212493A CN102062652A CN 102062652 A CN102062652 A CN 102062652A CN 2009102124934 A CN2009102124934 A CN 2009102124934A CN 200910212493 A CN200910212493 A CN 200910212493A CN 102062652 A CN102062652 A CN 102062652A
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Abstract
The invention relates to a device and a method which are used for detecting related electric signal variation caused by the speed variation of deformation of a flexible material due to the influence from the outside and the internal stress variation of the flexible material when the flexible sensing material mixed with micro construction bodies deforms under the influence from the outside and the electrical properties of the flexible sensing material vary and using the variation of the related electrical signal as a pressure signal causing the deformation and internal stress variation of the flexible material. The invention adopt a scheme of providing a novel pressure sensor device which uses the flexible material as the inducting material of a pressure sensor and an inducting detection method for the pressure signal, namely a pressure sensor device using the flexible inducting material mixed with micro construction bodies and a pressure inducting method.
Description
Technical field
The present invention relates to utilize the soft inductive material of having sneaked into fine structure body under it is subjected to situation that ectocine deforms, reach electrical specification and change, distortion and internal stress that flexible material is taken place under ectocine change the device and method that caused relevant electric signal change-detection goes out to be used as to cause the pressure signal that flexible material distortion and internal stress change.
Background technology
Existing pressure transducer has the strain transducer that detects strain behind the deformation of thin membrane, is widely used in various industry and civil area.Above sensor, its material or mechanism as the induction rate signal substantially all is the material of hard.Also not as the soft macromolecular material of rubber as the simultaneously simply constructed pressure transducer of pressure signal inductive material.
Summary of the invention
Aforesaid traditional pressure transducer all is inductive material or the mechanism that uses hard.Soft pressure sensitive material of the present invention provides a kind of novel pressure transducer and pressure detection method as the application of velocity response material.And this soft feeling is answered material speed pickup simple structure, helps reducing the pressure transducer production cost and according to using widely.
Purpose of the present invention has provided the induction detection method of novel flexible material as the pressure sensor apparatus and the pressure signal of pressure transducer inductive material.Just use the soft feeling of sneaking into fine structure body and answered material pressure transducer device and pressure sensitive method.
First summary of the invention of present patent application is to have invented to use and sneaked into the detection method of the flexible material of fine structure body as the rate signal of pressure transducer inductive material.When having provided the flexible material of having sneaked into fine structure body its shape having changed under pressure, the detection method that the electrical specification of this flexible material that the speed of its change of shape causes changes, and will use the detection method of the detected change in electric of this detection method as pressure signal.
In addition, second summary of the invention of the present patent application is that this pressure sensor apparatus consists of the following components: a, soft polymer rubber material; B sneaks into the electric conductivity milli machine building material in the softness; C, the mechanism that causes the flexible material distortion; D, soft tectosome electrical specification detects and the electric signal of the pressure correlation of will detected and soft tectosome being out of shape is isolated and pressure signal is exported the electric signal check-out module.
The explanation of effect about invention
According to the invention of the present patent application, can be with sneaking into of softness the material of microscopic structure come material as the induction pressure signal of pressure transducer, make the novel pressure sensor.This novel pressure sensor arrangement is simple, will help being extensive use of of pressure transducer more.
The explanation of preferred plan during the invention process
One, the electromechanical properties variation characteristic and the utilization thereof of flexible material its inner fine structure body when being subjected to ambient pressure influence generation change of shape of fine structure body have been sneaked into: the flexible material of sneaking into small electricity conductive construction, as the fine structure body in the elastomeric material with conductive characteristic, owing to be small mechanical realization, when the shape of flexible material changes, the influence of the pressure in the small scope of the flexible material around the milli machine structure is subjected to, and owing in the short space scope, occur in the unbalanced stress weighing apparatus of the flexible material around the fine structure body, to be that fine structure body deforms, its conductive characteristic is changed.The variation of the conductive characteristic of the micromachine structure in flexible material, on macroscopic view, the electrical specification that has caused sneaking into the flexible material of milli machine structure changes.By the detection of electrons loop, the electrical specification change-detection that causes with its internal stress variation of having sneaked into the flexible material of fine structure body is gone out, and change the separating treatment that is caused by external speed during the caused internal stress of dimensional deformation changed, as detecting pressure signal output.
Fig. 1, Fig. 2 are the illustratons of model of sneaking into the milli machine structure in the flexible material in the present patent application.
Fig. 3 is the electrical model figure that has sneaked into the flexible material with conductive characteristic.On electrical specification, sneaked into the flexible material of milli machine structure and can regard by resistance (R) electric capacity (C), the network that inductance (L) is formed as with conductive characteristic.
Fig. 1, the folding of the pointed part among Fig. 2 and the following formula of the variation relation of stress are represented.
L’＝L+ΔL
R’＝R+ΔR
C’＝C+ΔC
L, C, R: the inductance value before the small electricity conductive construction distortion of the spiral fashion in the flexible material, capacitance, resistance value.
L ', C ', R ': the inductance value before the small electricity conductive construction distortion of the spiral fashion in the flexible material, capacitance, resistance value.
The variation of the micromachine structure with electric conductivity of sneaking in the flexible material will cause the variation of electrical specification of the integral body of whole flexible material of sneaking into small electricity conductive construction.That is the variation of the impedance of flexible material.
Two, utilize the present invention to make the application examples of pressure transducer:
The illustraton of model that above-mentioned small building material is sneaked into the type speed pickup is represented by Fig. 4.About in the of 20, two pressure transferred structures 10 have up and down been placed at the flexible material of having sneaked into fine structure body among Fig. 4.When above-below direction generation relative pressure changes, two two pressure transferred structures 10 will push the soft inductive material between two electrodes 40.Make the flexible material in the soft inductive material be subjected to displacement variation with respect to its inner fine structure body, this change in displacement will cause that the shape of its inner small mechanism changes, and then make the electrical specification between two electrodes change.Speed detects loop 30 the electrical specification change-detection between two electrodes is come out, and will carry out filtering and corresponding compensation to it, exports as rate signal.
[lime light in the design]
In design during two pressure transferred structures 10, should add to make its range of movement can be limited in device within the pressure range to be determined, avoid the pressure sensitive material to be extruded destruction.
[application examples 1]
All formation explanations:
Fig. 4 be the soft inductive material of the application of first application examples of the present invention pressure transducer sketch map.
The pressure sensor apparatus of using the soft inductive material of application of the present invention is by, two pressure transferred structures 10, soft inductive material 20, and speed detects loop 30, and electrode 40 and lead 50 are formed.
(1) pressure transferred structure 10:
Relative velocity generating mechanism 10 is to be placed on soft inductive material both sides, is used for transmitting pressure and limits the parts of pressure size.
(2) soft inductive material 20:
Soft inductive material 20 is used for responding to the parts of loading change of shape thereon.Wherein sneaked into small electric conductivity tectosome.Small tectosome can be the conductive material of small carbon element coil shape, also can be other can be out of shape and the variation of shape will cause the small electricity conductive construction body that its electrical specification changes.
(3) leaning device speed detects loop 30:
Leaning device pressure detection loop 30 just refers to the electronic loop system that two impedance between electrodes are detected.
(4) electrode 40:
Electrode 30 is to be used for loading the parts of electric signal to being clipped in therebetween soft inductive material.Can be the metal of hard, also can be soft conductive material.
(5) detection method of pressure signal:
The detection method of rate signal, can be carried between two electrodes with high frequency or direct current signal, when the shape that adds the soft inductive material that ambient pressure causes changes, the size that high-frequency current between two electrodes of soft inductive material or DC current change is flow through in detection, it is carried out detection, filtering, processing such as amplification obtain pressure change signal.
[application examples 2]
The 2nd application examples explanation of the present invention.
The present invention can be designed to the pressure transducer of simple more structure.
Fig. 5 is the pressure transducer of the simple structure of the soft inductive material of the application of the 2nd application examples of the present invention.
In this application examples, make electrode with soft conductive material.Like this, whole pressure transducer is removed and is detected the loop and draw conductor part, and remainder all is made up of flexible material.
[simple declaration of figure]
Synoptic diagram in the short space scope of the gentle helix structure of sneaking in [Fig. 1] flexible material.
Synoptic diagram when the fine motion of the gentle helix structure of sneaking in [Fig. 2] flexible material partly deforms.
[Fig. 3] soft inductive material electrical model figure.
[Fig. 4] uses the pressure sensor application illustration intention of the inductive material making of having sneaked into small electricity conductive construction body.
[Fig. 5] uses the pressure transducer simple structure application examples synoptic diagram of the inductive material making of having sneaked into small electricity conductive construction body.
[symbol description]
10: pressure transferred structure 10
20: soft inductive material
30: the acceleration detection loop
40: electrode
50: lead
Claims (2)
1. use and sneaked into the detection method of the flexible material of fine structure body as the rate signal of pressure transducer inductive material.When having provided the flexible material of having sneaked into fine structure body its shape having changed under pressure, the detection method that the electrical specification of this flexible material that the speed of its change of shape causes changes, and will use the detection method of the detected change in electric of this detection method as pressure signal.
2. this pressure sensor apparatus consists of the following components: a, soft polymer rubber material; B sneaks into the electric conductivity milli machine building material in the softness; C, the mechanism that causes the flexible material distortion; D, soft tectosome electrical specification detects and the electric signal of the pressure correlation of will detected and soft tectosome being out of shape is isolated and pressure signal is exported the electric signal check-out module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102124934A CN102062652A (en) | 2009-11-12 | 2009-11-12 | Pressure sensor device using flexible inducting material mixed with micro construction bodies and pressure signal inducting method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009102124934A CN102062652A (en) | 2009-11-12 | 2009-11-12 | Pressure sensor device using flexible inducting material mixed with micro construction bodies and pressure signal inducting method |
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| CN102062652A true CN102062652A (en) | 2011-05-18 |
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| CN2009102124934A Pending CN102062652A (en) | 2009-11-12 | 2009-11-12 | Pressure sensor device using flexible inducting material mixed with micro construction bodies and pressure signal inducting method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114964570A (en) * | 2022-04-27 | 2022-08-30 | 西安交通大学 | Deformable immersion type pressure sensor based on particle material electric conduction characteristics |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6280534A (en) * | 1985-10-03 | 1987-04-14 | Mitsubishi Electric Corp | Pressure measuring instrument |
| CN1139202A (en) * | 1995-11-08 | 1997-01-01 | 重庆大学 | Piezoelectric oscillation type array sensor capable of being distributed randomly |
| CN1321243A (en) * | 1999-07-09 | 2001-11-07 | 株式会社东金 | Capacitive deformation sensor and method of using the same |
| JP2005069705A (en) * | 2003-08-26 | 2005-03-17 | Fuji Electric Systems Co Ltd | Differential pressure and pressure detector |
| CN101180526A (en) * | 2005-05-26 | 2008-05-14 | 罗斯蒙德公司 | Pressure sensor using compressible sensor body |
| CN101427113A (en) * | 2006-04-28 | 2009-05-06 | Asf-基斯通公司 | Sensor interface |
-
2009
- 2009-11-12 CN CN2009102124934A patent/CN102062652A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6280534A (en) * | 1985-10-03 | 1987-04-14 | Mitsubishi Electric Corp | Pressure measuring instrument |
| CN1139202A (en) * | 1995-11-08 | 1997-01-01 | 重庆大学 | Piezoelectric oscillation type array sensor capable of being distributed randomly |
| CN1321243A (en) * | 1999-07-09 | 2001-11-07 | 株式会社东金 | Capacitive deformation sensor and method of using the same |
| JP2005069705A (en) * | 2003-08-26 | 2005-03-17 | Fuji Electric Systems Co Ltd | Differential pressure and pressure detector |
| CN101180526A (en) * | 2005-05-26 | 2008-05-14 | 罗斯蒙德公司 | Pressure sensor using compressible sensor body |
| CN101427113A (en) * | 2006-04-28 | 2009-05-06 | Asf-基斯通公司 | Sensor interface |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114964570A (en) * | 2022-04-27 | 2022-08-30 | 西安交通大学 | Deformable immersion type pressure sensor based on particle material electric conduction characteristics |
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Application publication date: 20110518 |