CN103063873A - Design method of soft sensing materials for soft material accelerated sensor - Google Patents
Design method of soft sensing materials for soft material accelerated sensor Download PDFInfo
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- CN103063873A CN103063873A CN 201110333200 CN201110333200A CN103063873A CN 103063873 A CN103063873 A CN 103063873A CN 201110333200 CN201110333200 CN 201110333200 CN 201110333200 A CN201110333200 A CN 201110333200A CN 103063873 A CN103063873 A CN 103063873A
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Abstract
The invention relates to a design method of soft materials for a soft material accelerated sensor. According to the design method of the soft materials for the soft material accelerated sensor, soft sensing materials mixed with tiny structure bodies are deformed when being affected by the outside, the electrical characteristics are changed, the relevant electric signal variation caused by variation of accelerated speed of the deformation of the soft materials caused by being affected by the outside is detected out to be used as pressure signals which cause the deformation of the soft materials. According to the design method of the soft materials, the soft materials mixed with the tiny structure bodies are used as the sensing materials of the speed sensor. Conductive spiral-shaped structures are mixed in the soft rubber materials, or the soft rubber materials with structure bodies of an elastic opening-closing structure are manufactured to be the soft sensing materials. When the mixing materials are in displacement changes in the range of a tiny space inside the mixing materials, the difference of the displacement moving speed in different space area ranges inside the range of the tiny space causes the electric characteristics of the soft materials to change. The variation of the detected electric signals by a detecting method is used as the application method of the materials of acceleration signals.
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, and electrical specification changes, and the caused relevant electric signal of acceleration change of the distortion that flexible material is occured under ectocine changes the method for designing that detects the employed soft inductive material of acceleration transducer that is used as the acceleration signal that causes the flexible material distortion.
Background technology
Existing acceleration transducer has the acceleration transducer of the piezoelectric effect utilized, and uses the acceleration transducer of change in displacement active compensation principle, and the capacitance acceleration transducer of using milli machine is also arranged.
Above sensor, its material or mechanism as the induction acceleration signal all is the material of hard.Also not the soft macromolecular material as rubber as the acceleration transducer of acceleration signal inductive material.
Summary of the invention
Aforesaid traditional acceleration transducer all is inductive material or the mechanism that uses hard.The present invention has invented the new material that can be used as the inductive material of soft accelerometer, and a kind of novel acceleration transducer and acceleration detection method are provided simultaneously.And this soft feeling is answered material acceleration transducer simple structure, is conducive to reduce the acceleration transducer production cost and according to using widely.
Purpose of the present invention has provided the soft feeling that is used for novel soft acceleration transducer and has answered the design of material method.
First summary of the invention of present patent application is to have invented to use and sneaked into the flexible material of fine structure body as the method for designing of this flexible material of acceleration transducer inductive material.Provided the gentle helix shape of in the rubber financial resources of softness, having sneaked into electric conductivity, or the soft rubber material of the tectosome of flexible opening-closing tectonics is made soft inductive material.When this composite material changed in its shape, the electrical specification of this flexible material that the acceleration of its change of shape causes changed.The application process of the detected change in electric of this detection method as this material of acceleration signal will be used.
In addition, second summary of the invention of the present patent application is that this softness acceleration induction material composition mainly consists of the following components: a, and soft polymer rubber material is such as silica gel; B sneak into the electric conductivity gentle helix shape in the softness, or the soft rubber material of the tectosome of flexible opening-closing tectonics is made soft inductive material.
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 acceleration signal of acceleration transducer, make New Acceleration Transducers.This New Acceleration Transducers simple structure will be conducive to being widely used of acceleration transducer more.
The explanation of preferred plan during the invention process
One, electromechanical properties variation characteristic and the utilization thereof of flexible material its inner fine structure body when being subject to the variation of ectocine generation internal stress of fine structure body have been sneaked into: the flexible material of sneaking into small electricity conductive construction, such as the fine structure body with conductive characteristic in the elastomeric material, owing to be small mechanical realization, when the internal stress of flexible material changes, the impact of the STRESS VARIATION of the flexible material around the milli machine structure is subjected to, to deform, 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 variation that causes with its internal stress variation of having sneaked into the flexible material of fine structure body is detected, and change the separating treatment that causes by external acceleration during the caused internal stress of dimensional deformation changed, as detecting acceleration 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 the milli machine structure with conductive characteristic and can regard by resistance (R) electric capacity (C), the network that inductance (L) forms as.
Fig. 4 is the stress of flexible material and the graph of a relation of its distortion.
The folding of the pointed part among Fig. 1 and the following formula of the variation relation of stress are calculated.
Δ Δ a: the folding angle variation of the pointed part that the elasticity coefficient variation of flexible material causes [°]
Δ a: the pre-angle changing of pointed part [°]
K: the elasticity coefficient [m/N] of the flexible material before the distortion
K ': the elasticity coefficient of the flexible material after the distortion [m/N]
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 that acceleration transducer is used the acceleration signal inductive material:
Above-mentioned acceleration transducer can use silica gel as flexible material with the simple composition of soft inductive material, and the tectosome that has simultaneously the small folding distortion of having of electric conductivity can use gentle helix structure carbon materials.The internal structure synoptic diagram of this softness inductive material is represented by Fig. 5.
Owing to be subjected to ectocine, when the stress in the soft inductive material changes, the variation of this stress will cause that the shape of its inner small mechanism changes, and then so that the electrical specification between two electrodes change.Acceleration detection loop 30 detects the variation of the electrical specification between two electrodes, and will carry out filtering and corresponding compensation to it, exports as acceleration signal.
[lime light in the design]
[application examples 1]
All formation explanations:
Fig. 5 be the soft inductive material of the application of the first application examples of the present invention acceleration transducer sketch map.
Use its inner primary structure of the soft inductive material of application of the present invention by, carbon element spiral structure body 10, mass 20, soft electrode 30, silica gel 40.
(1) carbon element spiral structure body 10:
Carbon element spiral structure body 10 is to sneak in the silica gel having the gentle helix shape carbon element tectosome of electric conductivity.This gentle helix shape carbon element tectosome can be upheld and this compression deformation.It can be micron order and nano level fine structure body that this gentle helix shape carbon element tectosome gets big or small.
(2) mass 20:
Mass 20 be adjust the adjuvant of sneaking in the silica gel can material, its function is to regulate the elastic damping coefficient of last soft inductive material, elasticity coefficient also can be used for degree of will speed up to change simultaneously, produce to around the stress of stoking material.Its size can design according to the acceleration range that will detect.With respect to carbon element spiral structure body 10, the adjustable range of the size of mass 20 is larger.
(3) soft electrode 30:
Electrode 30 is to the parts that are clipped in soft inductive material loading electric signal therebetween.Can be consisted of by the conducting rubber of softness.
(4) silica gel 40:
Silica gel 40 is the fertile materials of answering elastomeric material as soft feeling.
[symbol description]
10: carbon element spiral structure body 10
20: mass
30: soft electrode
40: silica gel.
Claims (2)
1. use and sneaked into the flexible material of fine structure body as the method for designing of this flexible material of acceleration transducer inductive material.Provided the gentle helix shape of in the rubber financial resources of softness, having sneaked into electric conductivity, or the soft rubber material of the tectosome of flexible opening-closing tectonics is made soft inductive material.When this composite material changed in its shape, the electrical specification of this flexible material that the acceleration of its change of shape causes changed.The application process of the detected change in electric of this detection method as this material of acceleration signal will be used.
2. should mainly consist of the following components by softness acceleration induction material composition: a, soft polymer rubber material is such as silica gel; B sneak into the electric conductivity gentle helix shape in the softness, or the soft rubber material of the tectosome of flexible opening-closing tectonics is made soft inductive material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110333200 CN103063873A (en) | 2011-10-19 | 2011-10-19 | Design method of soft sensing materials for soft material accelerated sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110333200 CN103063873A (en) | 2011-10-19 | 2011-10-19 | Design method of soft sensing materials for soft material accelerated sensor |
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| Publication Number | Publication Date |
|---|---|
| CN103063873A true CN103063873A (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 201110333200 Pending CN103063873A (en) | 2011-10-19 | 2011-10-19 | Design method of soft sensing materials for soft material accelerated sensor |
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| CN (1) | CN103063873A (en) |
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2011
- 2011-10-19 CN CN 201110333200 patent/CN103063873A/en active Pending
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Addressee: Guo Song Document name: Notification of before Expiration of Request of Examination as to Substance |
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| DD01 | Delivery of document by public notice |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20130424 |