CN205482782U - Flexible tensile strain type sensor - Google Patents
Flexible tensile strain type sensor Download PDFInfo
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- CN205482782U CN205482782U CN201620077859.7U CN201620077859U CN205482782U CN 205482782 U CN205482782 U CN 205482782U CN 201620077859 U CN201620077859 U CN 201620077859U CN 205482782 U CN205482782 U CN 205482782U
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- type sensor
- extension section
- sensing unit
- soft stretch
- strain
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 19
- 239000002184 metal Substances 0.000 claims abstract description 19
- 230000001186 cumulative effect Effects 0.000 claims description 5
- 239000008188 pellet Substances 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 3
- 229910001092 metal group alloy Inorganic materials 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000013473 artificial intelligence Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001235 sensitizing effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model is suitable for a sensor field provides a flexible tensile strain type sensor. Flexible tensile strain type sensor, including sensing unit and metal electrode, sensing unit has a dumbbell shape structure, including drawing portion and respectively with a set of tip that drawing portion both ends link to each other, just the cross -sectional area of tip is deviating from increasing setting in the direction of drawing portion, metal electrode include with the cyclic annular target in a drawing middle section is established to tip fixed connection's a set of termination electrode and hoop.
Description
Technical field
This utility model belongs to sensor field, particularly relates to a kind of soft stretch strain ga(u)ge type sensor.
Background technology
Strain ga(u)ge type sensor is a kind of a kind of device that mechanical deformation information can be converted into the output of the signal of telecommunication such as resistance or electric capacity, according to stress types, can be divided into pressure transducer, pulling force sensor.Along with the fast development of science and technology, the field such as the such as biomechanics detection of some emerging fields, rehabilitation medical, intelligent robot, wearable device, flexible electronic etc. puts forward higher requirement to the flexible stretchable performance of elongation strain sensor (i.e. pulling force sensor).And wide variety of traditional strain transducer is based on metal, metal alloy and to have the semi-conducting material of piezoresistive effect and make in current techniques.But, due to the own springform quantitative limitation of metal, metal alloy and semi-conducting material, metal type or semiconductor-type resistance strain sensor have the disadvantage in that flexibility is poor, mechanical quantity amplitude of variation is less, structure is complicated, and manufacturing cost is high.So traditional metal type or the application in these fields of the semiconductor-type resistance elongation strain sensor are just restricted, it is impossible to meet the requirement of Present S & T Development.Therefore, be badly in need of developing that a kind of new pliability is excellent, simple in construction, flexible strain ga(u)ge type sensor easy for installation to be to meet an urgent demand of current techniques and application development.
Utility model content
The purpose of this utility model is to provide a kind of soft stretch strain ga(u)ge type sensor, it is intended to solve that traditional metal mold, metal alloy type or semi-conductor type strain transducer flexibility be poor, complex structure and other problems.
This utility model is realized in, a kind of soft stretch strain ga(u)ge type sensor, including sensing unit and metal electrode, described sensing unit has dumbbell shape structure, including extension section and the one group of end being connected with described extension section two ends respectively, and the cumulative setting on the direction deviating from described extension section of the cross-sectional area of described end；Described metal electrode includes fixing the one group of termination electrode being connected with described end and binding round the ring-type target being located at extension section stage casing.
Further, described extension section is the one in cylinder, cuboid, and the draw ratio of described extension section is more than 1.
Further, the one during described metal electrode is membranaceous, foil-like, pellet electrode.
Further, described termination electrode includes that described chuck portion gripping sleeve is located at side of described end week for fixedly mounting with outside extensional motion device and be connected the external connection portion of external circuit and for fixing the chuck portion of described sensing unit.
Further, described external connection portion is hollow ring structure.
Further, the one during described end is bucking ladder, terrace with edge, round platform.
Further, described sensing unit is made up of conductive rubber.
The elongation strain sensor that this utility model provides has good flexibility and elasticity, it is possible to produces higher mechanical stretching deformation quantity, has excellent strain-resistance effect.In addition, the elongation strain sensor that this utility model provides, the change of resistance can be produced under tensile force effect, by external circuits, resistance signal is changed into voltage signal, thus as tension type voltage sensor, carry out the measurement of power in fields such as biomechanics, rehabilitation medical, intelligence wearing and artificial intelligences.
Further, the elongation strain sensor that this utility model provides, including one group of termination electrode and a target, described sensing unit is divided into two parts by described target, a portion does not produce deformation, another part produces deformation and resistance variations under tensile force, and the change of resistance is exported by the change of the voltage signal at its two ends, thus reaches the conversion by tensile deformation signal to the signal of telecommunication of the tension strain sensor.Compared to directly measure sensor two ends under tensile deformation resistance signal, by mode measurement voltage signal of the present utility model, it is thus achieved that the relation of the signal of telecommunication and deformation signal there is the more preferable linearity so that it is can be used for the resistance measurement of complicated deformation.
Accompanying drawing explanation
Fig. 1 is the overall structure front elevation of the soft stretch strain ga(u)ge type sensor 10 that this utility model embodiment 1 provides；
The Facad structure figure of quick unit 11 is provided described in the offer of Fig. 2 this utility model embodiment 1；
The longitudinal section structure chart of quick unit 11 is provided described in the offer of Fig. 3 this utility model embodiment 1；
Fig. 4 is the described soft stretch strain ga(u)ge type sensor 10 signal measurement schematic diagram that this utility model embodiment 1 provides；
Fig. 5 is the tensile deformation-voltage curve of the described soft stretch strain ga(u)ge type sensor 10 that this utility model embodiment 1 provides.
Detailed description of the invention
In order to make the technical problems to be solved in the utility model, technical scheme and beneficial effect clearer, below in conjunction with embodiment, this utility model is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.
In conjunction with Fig. 1-5, this utility model provides a kind of soft stretch strain ga(u)ge type sensor 10, including sensing unit 11 and metal electrode 12, described sensing unit 11 has dumbbell shape structure, including extension section 111 and the one group of end 112 being connected with described extension section 111 two ends respectively, and the cumulative setting on the direction deviating from described extension section 111 of the cross-sectional area of described end 112；Described metal electrode 12 includes the ring-type target 122 being located at extension section 111 stage casing with the fixing one group of termination electrode 121 being connected in described end 112 and hoop.
In this utility model embodiment, hoop is located at the ring-type target 122 in extension section 111 stage casing, and described extension section 111 is divided into two parts；And described ring-type target 122 the most clearly limits in the position that arranges of described extension section 111, only need not contact with described tip electrodes 121.
Concrete, described sensing unit 11 is made up of conductive rubber, can produce and draw high deformation.Concrete, described conductive rubber is to fill a kind of composite that conductive particle is made in elastomeric material, it can produce the change of resistance under tensile force effect, thus can be used to make the sensing unit of flexible sensor, i.e. the extension section 111 of sensing unit 11 described in this utility model embodiment is the pulling force-resistance sensitizing range of sensing unit 11.Preferably, described extension section 111 is that cylinder, cuboid, prismatic one, and the draw ratio of described extension section 111 are more than 1.In this utility model, described draw ratio includes length and the ratio of diameter of section, the length of cuboid and the ratio of the ratio of its diagonal cross section, prismatic length and its cross section length of side of cylinder.
The end 112 of described sensing unit 11 cumulative setting on the direction deviating from described extension section 111 so that the size of described end 112 is gradually increased, seamlessly transits, it is achieved described end 112 each cross-sectional area shape is similar, area three-dimensional-structure not etc..Concrete, described end 112 is preferably the one in bucking ladder, terrace with edge, round platform.
Further, in this utility model embodiment, the material of described metal electrode 12 is unrestricted, including rustless steel, aluminum, copper, nickel etc..Preferably, described metal electrode 12 is the one in membranaceous, foil-like, pellet electrode, it is of course also possible to be other opposite sex hardwares.Concrete, this utility model embodiment is provided with two termination electrodes 121, its role is to: one is to be connected the input as voltage signal with external circuit, two is that one of them termination electrode is fixed, other end electrode, as movable terminal, the tensile force that the carrying external world applies, makes sensor telescopic shape change.Meanwhile, this utility model embodiment is additionally provided with a target 122, and its effect includes: one is as the fixing end of sensor one；Two is the outfan that the movable terminal electrode in termination electrode each with sensing unit two collectively forms voltage signal.The shape of described target 122 is the most annular, and it is with specific reference to the change of shape of described extension section 111, and when described extension section 111 is cylinder, described target 122 is circular；When described extension section 111 is cuboid, described target 122 side of being is ring-type, and the length of described target 122 the most clearly limits.
Preferably, described termination electrode 121 includes that described chuck portion 1212 gripping sleeve is located at 112 weeks sides, described end for fixedly mounting with outside extensional motion device and be connected the external connection portion 1211 of external circuit and for fixing the chuck portion 1212 of described sensing unit 11.Described termination electrode 121 can be set to symmetrical structure, it is possible to is arranged to unsymmetric structure.
The most concrete, described external connection portion 1211, except connecting, for external circuits, the signal of telecommunication that output deformation causes, it is also used for saying that sensor is fixed on outside extensional motion device simultaneously, sensor sensing unit is applied tensile force and causes its generation deformation.Realizing nut installation for the ease of described soft stretch strain ga(u)ge type sensor 10 with externally measured and dynamic structure to be connected, described external connection portion 1211 is set to hollow ring structure, and its hollow circular hole can be used for wearing of nut.Described chuck portion 122 is located at 112 weeks sides, described end for gripping sleeve, and therefore, its shape can be designed according to the shape of described end 112, and this utility model does not make considered critical.
As shown in Figure 4, the described flexible tensile strain ga(u)ge type sensor 10 that this utility model embodiment provides, two termination electrodes 121 are as voltage signal inputs, target 122 and one of them movable terminal electrode 121 constitute the outfan of voltage signal, and described target 122 maintains static end as sensor, movable terminal electrode as outfan may move under external force, makes described flexible tensile strain ga(u)ge type sensor 10 produce telescopic shape change.In this manner, the sensing unit 11 of described flexible tensile strain ga(u)ge type sensor 10 is divided into two parts by target 122, a portion does not produce deformation, another part produces deformation and resistance variations under tensile force, and the change of resistance is exported by the change of the voltage signal at its two ends, thus reach the conversion by tensile deformation signal to the signal of telecommunication of the tension strain sensor.
The elongation strain sensor that this utility model embodiment provides has good flexibility and elasticity, it is possible to produces higher mechanical stretching deformation quantity, has excellent strain-resistance effect.In addition, the elongation strain sensor that this utility model embodiment provides, the change of resistance can be produced under tensile force effect, by external circuits, resistance signal is changed into voltage signal, thus as tension type voltage sensor, carry out the measurement of power in fields such as biomechanics, rehabilitation medical, intelligence wearing and artificial intelligences.
Further, the elongation strain sensor that this utility model embodiment provides, including one group of termination electrode and a target, described sensing unit is divided into two parts by described target, a portion does not produce deformation, another part produces deformation and resistance variations under tensile force, and the change of resistance is exported by the change of the voltage signal at its two ends, thus reaches the conversion by tensile deformation signal to the signal of telecommunication of the tension strain sensor.Compared to directly measure sensor two ends under tensile deformation resistance signal, measurement voltage signal by the way of this utility model embodiment, the signal of telecommunication obtained has the more preferable linearity with the relation of deformation signal so that it is can be used for the resistance measurement of complicated deformation.
Illustrate below in conjunction with specific embodiment.
Embodiment 1
As Figure 1-5, a kind of soft stretch strain ga(u)ge type sensor 10, including sensing unit 11 and metal electrode 12, described sensing unit 11 has dumbbell shape structure, including extension section 111 and the one group of end 112 being connected with described extension section 111 two ends respectively, and the cumulative setting on the direction deviating from described extension section 111 of the cross-sectional area of described end 112；Described metal electrode 12 includes the ring-type target 122 being located at extension section 111 stage casing with the fixing one group of termination electrode 121 being connected in described end 112 and hoop.Wherein, described termination electrode 121 includes the external connection portion 1211 for gripping and for fixing the chuck portion 1212 of described sensing unit 11, and described chuck portion 1212 gripping sleeve is located at 112 weeks sides, described end, and described external connection portion 1211 is set to hollow ring structure.In this utility model embodiment 1, Fig. 1 is the overall structure front elevation of soft stretch strain ga(u)ge type sensor 10, Fig. 2 be described in draw the Facad structure figure of quick unit 11, Fig. 3 be described in draw the longitudinal section structure chart of quick unit 11；Fig. 4 is described soft stretch strain ga(u)ge type sensor 10 signal measurement schematic diagram, and wherein, A, B represent two termination electrodes 121 respectively, and C represents target 122；Fig. 5 is the tensile deformation-voltage curve of described soft stretch strain ga(u)ge type sensor 10.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, within should be included in protection domain of the present utility model.
Claims (7)
1. a soft stretch strain ga(u)ge type sensor, including sensing unit and metal electrode, it is characterized in that, described sensing unit has dumbbell shape structure, including extension section and the one group of end being connected with described extension section two ends respectively, and the cumulative setting on the direction deviating from described extension section of the cross-sectional area of described end；Described metal electrode includes fixing the one group of termination electrode being connected with described end and binding round the ring-type target being located at extension section stage casing.
2. soft stretch strain ga(u)ge type sensor as claimed in claim 1, it is characterised in that described extension section be cylinder, cuboid, prismatic in one, and the draw ratio of described extension section is more than 1.
3. soft stretch strain ga(u)ge type sensor as claimed in claim 1, it is characterised in that described metal electrode is the one in membranaceous, foil-like, pellet electrode.
4. soft stretch strain ga(u)ge type sensor as claimed in claim 3, it is characterized in that, described termination electrode includes that described chuck portion gripping sleeve is located at side of described end week for fixedly mounting with outside extensional motion device and be connected the external connection portion of external circuit and for fixing the chuck portion of described sensing unit.
5. soft stretch strain ga(u)ge type sensor as claimed in claim 4, it is characterised in that described external connection portion is hollow ring structure.
6. soft stretch strain ga(u)ge type sensor as claimed in claim 1, it is characterised in that described end is the one in bucking ladder, terrace with edge, round platform.
7. the soft stretch strain ga(u)ge type sensor as described in claim 1-6 is arbitrary, it is characterised in that described sensing unit is made up of conductive rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620077859.7U CN205482782U (en) | 2016-01-26 | 2016-01-26 | Flexible tensile strain type sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620077859.7U CN205482782U (en) | 2016-01-26 | 2016-01-26 | Flexible tensile strain type sensor |
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| Publication Number | Publication Date |
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| CN205482782U true CN205482782U (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620077859.7U Expired - Fee Related CN205482782U (en) | 2016-01-26 | 2016-01-26 | Flexible tensile strain type sensor |
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| CN (1) | CN205482782U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974572A (en) * | 2019-03-25 | 2019-07-05 | 绍兴文理学院 | A kind of graphene rubber strain detection testing device and rock strain measurement method |
-
2016
- 2016-01-26 CN CN201620077859.7U patent/CN205482782U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974572A (en) * | 2019-03-25 | 2019-07-05 | 绍兴文理学院 | A kind of graphene rubber strain detection testing device and rock strain measurement method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 |
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| CF01 | Termination of patent right due to non-payment of annual fee |