WO2005001406A1 - 可撓性素子 - Google Patents
可撓性素子 Download PDFInfo
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- WO2005001406A1 WO2005001406A1 PCT/JP2004/009008 JP2004009008W WO2005001406A1 WO 2005001406 A1 WO2005001406 A1 WO 2005001406A1 JP 2004009008 W JP2004009008 W JP 2004009008W WO 2005001406 A1 WO2005001406 A1 WO 2005001406A1
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- WIPO (PCT)
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- flexible element
- exchange resin
- ion exchange
- ion
- element according
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
- F03G7/005—Electro-chemical actuators; Actuators having a material for absorbing or desorbing gas, e.g. a metal hydride; Actuators using the difference in osmotic pressure between fluids; Actuators with elements stretchable when contacted with liquid rich in ions, with UV light, with a salt solution
Definitions
- the present invention relates to a flexible element that converts deformation into electric energy.
- a piezoelectric element using piezoelectric ceramics As a device for directly converting a force into an electric signal, a piezoelectric element using piezoelectric ceramics is widely used. Piezoelectric ceramics convert a stress or force into an electric signal by a piezoelectric effect that generates electric charges when the ceramic receives stress or force. According to such a principle, the piezoelectric element converts a force applied to the piezoelectric element into electric energy, and is used for a power generation unit, a detection unit of a sensor device, and the like. As the piezoelectric ceramics, barium titanate or lead dinoleconate titanate (PZT) is generally used.
- PZT lead dinoleconate titanate
- a piezoelectric element using piezoelectric ceramics a material in which metal electrodes are laminated on piezoelectric ceramics is generally used for applications that do not require flexibility.
- flexible piezoelectric elements are used for applications such as flexible cables.
- a piezoelectric element in which a metal electrode layer is formed on a resin layer made of a piezoelectric composite material containing PZT coated with a titanium coupling agent and chlorinated polyethylene. (See, for example, Patent Document 1).
- Patent Document 1 JP-A-2000-58940 (pages 2 to 3)
- piezoelectric ceramics have a high specific gravity.
- Barium titanate, a piezoelectric ceramic is about 5.7 (10 3 kg / m 3 )
- lead zirconate titanate (PZT) is about 7.5 (10 3 kg / m 3 ).
- the resin component 100 g includes a piezoelectric ceramic (PZT) 58 ⁇ 7 volume 0/0.
- the piezoelectric element having flexibility has a very high specific gravity because the resin component which is a binder contains a ceramic powder having a high specific gravity and further includes a metal electrode.
- the flexible piezoelectric element is used as a sensor at the distal end of a bending drive device such as a catheter, it is difficult to make a large motion such as bending.
- a drive unit for determining the traveling direction in addition to the piezoelectric element, in the vicinity of the distal end, which complicates the configuration of the device.
- an element that combines a sensor and a drive unit at the tip of the bend drive device if possible, in order to simplify the structure of the device and make it a bend drive device that can be easily inserted into a narrow tube. It is desirable to install
- An object of the present invention is to obtain a light-weight and flexible element that converts mechanical energy into electric energy.
- an element is an ion-exchange resin composite in which an electrode layer is formed on an ion-exchange resin layer, and the electrode layer is formed on the ion-exchange resin layer.
- the ion-exchange resin is flexible because it is in a water-containing state, and the force is in contact with the electrode layer. Since the resin layer is composed of the resin component and the aqueous liquid component, the specific gravity is 2 or less, and it has been found that a lightweight piezoelectric element can be easily obtained, and the present invention has been accomplished.
- the present inventor has concluded that the above-mentioned flexible element that converts element deformation into electric energy is a flexible element that converts element deformation into electric energy and is driven by applying a voltage. They found that they could be used as elements, and that they could be used in various applications, such as for use at the tip of a bending drive, as an element that has both a sensor function and a drive function. Heading, which has led to the present invention.
- FIG. 1 (a) is a cross-sectional view of one embodiment of a flexible element of the present invention.
- FIG. 1B is a cross-sectional view showing a state where the flexible element of FIG. 1A is deformed.
- FIG. 2 is a schematic view of another embodiment of the flexible element of the present invention.
- FIG. 3 is a schematic view of an embodiment of a flexible element that converts element deformation into electric energy and drives the element according to the present invention.
- FIG. 4 is an explanatory diagram of electromotive force measurement in the flexible element of the present invention.
- the present invention is an element, which is an ion-exchange resin composite in which an electrode layer is formed on an ion-exchange resin layer, wherein a plurality of the electrode layers are formed on the ion-exchange resin layer.
- a flexible element that converts the deformation of the element into electric energy.
- the flexible element functions as a flexible element that converts electric energy when the ion exchange resin layer in the ion exchange resin composite is swollen with water.
- FIG. 1 is a cross-sectional view of one embodiment of a flexible element that converts element deformation into electric energy when the electrode layers 2 and 2 ′ are provided so as to sandwich the ion-exchange resin layer 3. is there.
- the flexible element 1 changes from the stationary state of FIG. 1 (a) to a state of deformation as shown in FIG. 1 (b).
- the state of FIG. 1 (b) at least one of the two or more electrodes formed on the ion-exchange resin layer expands, and the other electrode layer 2 'contracts.
- the electrode layer 2 serves as a negative electrode, and the electrode layer 2 'serves as a positive electrode.
- the resin component of the ion exchange resin layer is an anion exchange resin, the positive and negative electrodes are reversed.
- the electrode layer 2 Due to the bias of the charges, the electrode layer 2 'becomes a positive electrode, the electrode layer 2 becomes a negative electrode, and the charges move from the negative electrode to the positive electrode.
- the current flows from the electrode layer 2 'to the electrode layer 2. That is, the flexible element is different from a normal piezoelectric element because it obtains electric energy by electrochemical ionic behavior.
- FIG. 2 is a schematic view of another embodiment of the flexible element of the present invention.
- a flexible element 11 that converts element deformation into electric energy has a configuration in which electrode layers 12 and 12 ′ are provided on both surfaces of an ion exchange resin layer 13.
- a known voltmeter is attached.
- pressure is applied to the electrode layer 12 using the pressing member 14. Due to this calo pressure, the electrode layer 12 which is one electrode layer of the flexible element 11 is extended, and an electromotive force is obtained.
- FIG. 2 shows an embodiment in which one electrode layer is elongated, but the electrode layer may be elongated not by pressing but by tension.
- the movement of such charges can be measured by a voltmeter, and the amount of movement of the charges changes depending on the magnitude of the displacement applied to the flexible element.
- the displacement amount can be specified.
- the elastic constant of the element is constant, the external force applied from the displacement can be calculated.
- the flexible element of the present invention is an element that is an ion-exchange resin composite in which an electrode layer is formed on an ion-exchange resin layer, and a plurality of the electrode layers are formed on the ion-exchange resin layer. ing.
- the ion-exchange resin composite only needs to have a plurality of electrode layers formed on the ion-exchange resin layer. Since the electrode layer is provided so that a counter electrode can be formed, the electrode layer becomes a negative electrode and a positive electrode by the deformation of the element as described above, and electric energy is obtained.
- the electrode layer is formed on one surface of the ion exchange resin layer as long as a plurality of electrodes are formed on the ion exchange resin layer and are insulated from each other so that an electrode pair can be formed. Electrodes may be formed on one surface and the other surface of the ion-exchange resin layer, respectively, where the electrodes may be formed. When electrode layers are formed on both surfaces of the ion-exchange resin layer, a plurality of electrode layers may be formed on only one surface of the ion-exchange resin layer while being insulated from each other. A plurality of electrode layers may be formed on both sides.
- the ion exchange resin composite can be obtained by a known method.
- the ion exchange resin composite can be obtained by forming a metal layer by performing electroless plating on the ion exchange resin and using the metal layer as an electrode layer.
- the electroless plating for example, a metal complex such as a platinum complex or a gold complex is added to the ion exchange resin in a state where the ion exchange resin is swollen by immersion in water after performing a surface roughening treatment.
- An electroless plating method in which an adsorption step for adsorbing the metal is carried out, a reduction step for reducing the metal complex adsorbed in the next step with a reducing agent to deposit a metal, and a washing step for washing and removing the reducing agent, if desired.
- adsorption step, the reduction step, and the cleaning step can be repeatedly performed in order to make the electrode layer, which is an electrode, thick enough to allow current to flow and bend.
- an electrode layer is formed by growing an electrode layer in the interior direction of the ion-exchange resin, and a cross section of the electrode layer is formed at an interface between the ion-exchange resin and the electrode layer.
- Has a fractal structure so that a large electric double layer can be provided at the interface between the electrode layer and the ion exchange resin layer.
- the electrode layer has a fractal structure in the direction of the inside of the ion-exchange resin layer, the ion-exchange resin composite has durability even when repeatedly bent since an anchor effect works.
- the ion exchange resin is not particularly limited.
- the ion exchange resin is not particularly limited, and any known ion exchange resin can be used, such as a resin obtained by introducing a hydrophilic functional group such as a sulfonic acid group or a carboxyl group into polyethylene, polystyrene, a fluororesin, or the like. Can be used.
- Such a resin examples include a perfluorosulfonic acid resin (trade name “Nafion”, manufactured by DuPont), a perfluorocarboxylic acid resin (trade name “Flemion”, manufactured by Asahi Glass Co., Ltd.), and ACIPLEX (manufactured by Asahi Kasei Corporation) , NEOSE PTA (made of Tokumane earth) can be used.
- a perfluorosulfonic acid resin trade name “Nafion”, manufactured by DuPont
- a perfluorocarboxylic acid resin trade name “Flemion”, manufactured by Asahi Glass Co., Ltd.
- ACIPLEX manufactured by Asahi Kasei Corporation
- NEOSE PTA made of Tokumane earth
- the metal complex solution used in the electroless plating adsorption step is not particularly limited as long as the metal layer formed by reduction contains a metal complex that can function as an electrode layer. Not something.
- a metal complex such as a gold complex, a platinum complex, a palladium complex, a rhodium complex, and a lutenium complex because a metal having a low ionization tendency is electrochemically stable. Since the metal is used in water as an electrode, a metal complex composed of a noble metal having good electrical conductivity and high electrochemical stability is preferred, and a gold complex containing gold, which is relatively unlikely to undergo electrolysis, is preferred.
- the solvent of the metal salt solution is not particularly limited, but dissolution of the metal salt is acceptable. It is preferable that the solvent contains water as a main component because the solvent is easy and the handling is easy, and the metal salt solution is preferably an aqueous metal salt solution. Therefore, the metal complex solution is preferably an aqueous solution of a metal complex, particularly preferably an aqueous solution of a gold complex or an aqueous solution of a platinum complex, and more preferably an aqueous solution of a gold complex.
- the type is appropriately selected and used according to the type of the metal complex used in the metal complex solution adsorbed on the ion exchange resin.
- sodium sulfite, hydrazine, sodium borohydride and the like can be used.
- an acid or an alkali may be added as necessary.
- the concentration of the reducing agent solution is not particularly limited as long as the reducing agent solution contains a sufficient amount of the reducing agent to obtain the amount of metal precipitated by reduction of the metal complex. It is also possible to use the same concentration as the metal salt solution used when forming an electrode by electrolysis.
- the reducing agent solution may contain a good solvent for the ion exchange resin.
- the method for forming a plurality of electrode layers on the ion-exchange resin layer obtained by the above-described electroless plating is not particularly limited.
- a method for forming an electrode layer on the ion-exchange resin layer may be used.
- the metal layer may be partially cut away using laser irradiation or a sharp blade to form metal layers that are insulated from each other.
- the flexible element of the present invention may be a membrane-shaped ion-exchange resin composite obtained by performing electroless plating on a membrane-shaped ion-exchange resin whose shape is not particularly limited.
- an electrode layer is formed on the inner surface and / or outer surface of the cylindrical ion exchange resin, and an insulating groove is provided by laser irradiation or the like to form a plurality of electrodes that can form mutually insulated electrode pairs.
- An ion exchange resin composite having a layer may be used as the flexible element.
- the flexible element has sufficient flexibility so that the membrane-like ion-exchange resin composite is formed into a cylindrical, box-like, short-diameter, flat-plate, column-shaped, prism-shaped, coil-shaped, or the like. It can be easily formed into a desired shape. Therefore, the flexible element of the present invention has excellent moldability.
- the flexible element When the flexible element has a cylindrical shape, two or more electrode layers are insulated from each other on the same surface of the cylindrical ion exchange resin layer. It can be a distributed flexible element. In the case of the cylindrical flexible element, each of the 360 ° It is more preferable that the flexible element be provided with three or more electrode layers in order to facilitate sensing from the direction. This flexible element has two or more electrode layers on the same surface of a cylindrical ion-exchange resin layer. Therefore, it is useful as a sensor because the force applied to the outer periphery of the cylindrical element can be easily detected.
- the thickness of the ion-exchange resin composite constituting the flexible element of the present invention is not particularly limited, but is 0.05 mm because the thickness is such that flexibility can be easily exhibited. It is preferable that the distance is 0.05 mm or more, more preferably 5 mm. In addition, since it can be sensed by a normal voltmeter without using an apparatus such as an amplifier, the diameter is preferably 0.5 mm or more.
- the flexible element of the present invention is an element that converts a deformation as shown in Fig. 1 (b) into electric energy. Therefore, it is preferable that the flexible element has a shape capable of facilitating deformation, and therefore, the ratio of the area of the ion exchange resin composite to the thickness of the ion exchange resin composite is reduced. It is more preferably 20 (mmVmm), more preferably 10 (mm 2 / mm).
- the flexible element of the present invention is a flexible element that is an ion-exchange resin composite in which an electrode layer is formed on an ion-exchange resin layer, and a plurality of the electrode layers are provided on the ion-exchange resin layer. It is also an element that converts element deformation into electric energy by extending at least one electrode layer and / or shrinking at least one electrode layer among a plurality of formed electrode layers.
- the flexible element is not particularly limited as long as it is formed of an ion-exchange resin composite in which an electrode layer is formed on an ion-exchange resin layer.
- the flexible element may be the ion exchange resin composite itself, or the outside of the ion exchange resin composite may be partially or entirely covered with a coating layer.
- the flexible element can be used by being immersed in water, so that it can be used in water. It is suitable as a mechanical sensor.
- the flexible element is an ion-exchange resin composite having a plurality of layers, the swelling state of the ion-exchange resin layer can be easily maintained even when not in water or under a high humidity environment. It is suitable as a sensor usually incorporated in a device.
- the flexible element of the present invention is in a state where the ion exchange resin is swollen by the solution containing ions.
- the ions function as charge carriers and are not particularly limited.
- the resin component of the ion exchange resin is a cation exchange resin, (CH 2) N + (CH 2) (CH 2) N + (C 2 )
- D Pumium ion, tetraalkylphosphonium ion such as (C H) P, H, Li N
- any divalent or trivalent ion such as Cu z Ni z Co z Fe z Fe a A1 ⁇ + , Zn Z ⁇ Pb Sn Mg Ca Z ⁇ Sr, Ba Cr it can.
- the cation is preferably a divalent cation because a larger electromotive force can be generated as compared with a valent cation. This is thought to be due to the high charge density due to the small divalent and trivalent ionic force S ionic radius.
- the same concentration (Na + When 0.5 mol / L) Li + is used, the electromotive force is 2.8 times that of Na +.
- the electromotive force is eight times that of Na + .
- the ions contained in the solution in the ion exchange resin are preferably divalent or trivalent ions, and more preferably divalent ions.
- the solution for swelling the ion exchange resin of the flexible element of the present invention is a solution containing an anion
- BF PF CIO Ts SO 2 NO Cl_ is used as the anion.
- the ions in the solution contained in the ion exchange resin are preferably ions having an ionic radius.
- the solvent used for the solution containing ions contained in the ion-exchange resin is a solvent that dissolves ions regardless of whether the ion-exchange resin is a cation-exchange resin or an anion-exchange resin. Polar solvent If so, there is no particular limitation.
- the present invention is also a flexible element that converts deformation into electrical energy and is driven by applying a voltage.
- an element having flexibility and converting element deformation into electric energy an element including piezoelectric ceramic particles in a resin component is known. However, the element is driven by applying a voltage to an electrode layer of the element. The element is unknown.
- a flexible element that is an ion-exchange resin composite having an electrode layer formed on an ion-exchange resin layer and having a plurality of electrode layers formed on the ion-exchange resin layer is used.
- a flexible element that converts the deformation of the element into electric energy and is driven by applying a voltage to the electrode layer of the element was obtained.
- the flexible element of the present invention which is driven by converting the deformation of the element into electric energy and applying a voltage to the electrode layer of the element, can be driven. Same as described above for the flexible element, except that the electrodes were provided.
- the flexible element preferably has an electric double layer capacity of 2000 / F / cm 2 or more. Since the flexible element can easily transmit mechanical energy to an external environment as an actuator element, the area of the ion exchange resin composite with respect to the thickness of the ion exchange resin composite is determined. Preferably, the ratio is 20 (mmVmm).
- the shape of the flexible element is preferably a film or a cylinder.
- the flexible element has a cylindrical shape
- the flexible element is an element having one electrode layer on each side, or a plurality of electrode layers formed on one or both sides of an ion exchange resin layer by laser irradiation or the like.
- the device may function as a driver after functioning as a sensing device by using the device.
- the sensing electrode layer and the driving electrode layer form an electrode pair, respectively, and the sensing electrode layer
- FIG. 3 is a schematic view showing one embodiment of the flexible element of the present invention when the sensing electrode layer and the driving electrode layer form an electrode pair.
- the sensing unit 27 When the sensing unit 27 receives a force due to contact with an obstacle or the like, electric energy is generated in the sensing unit and detected by the detection unit 25.
- the detection unit 25 sends a signal based on the occurrence of electric energy in the detection unit to the drive control unit 26 via the transmission line 29 to the drive control unit 26, and the drive control unit 26 applies a voltage to the drive electrode layers 24 and 24 '. I do.
- the driving section 28 is driven to bend and the flexible element is driven.
- the flexible element of the present invention can be suitably used as a driving element for remote operation. In the flexible element shown in FIG.
- the detection unit includes a conversion unit that converts the detected electric energy of the detection unit into a signal, and the detection unit can transmit the converted signal to the drive control unit.
- the drive control unit may directly detect the electric energy of the sensing unit and drive the drive unit without including the unit.
- the flexible element that converts deformation into electric energy and is driven by applying a voltage is used for a drive source as a bending drive device such as a catheter and an endoscope.
- a bending drive device such as a catheter and an endoscope.
- the bending when driven is preferably a deflection angle of 10 ° or more, and more preferably a deflection angle of 30 °.
- the deflection angle is determined by the maximum bending of the flexible element. It refers to the angle between the line connecting the central part of the thickness and the central part of the thickness of the fixed part and the perpendicular.
- a bending drive device using a flexible element that converts the deformation into electric energy and drives by applying a voltage converts the deformation into electric energy.
- a flexible element that is driven by applying a voltage is provided at a distal end portion, and a drive control section that drives the flexible element in accordance with a signal based on generation of electric energy of the flexible element is provided. Curved driving device.
- Japanese Patent Application Laid-Open Nos. H8-10336 and H11-196809 have two or more electrodes formed at a position where an ion-exchange resin membrane is sandwiched at the tip.
- a medical tube provided with an actuator and a microdevice for pipe adjustment or medical use are known.
- the bending drive device has good workability in performing operations such as surgery because the actuator provided at the distal end is driven by a low voltage, which has a fast response time to a curve.
- the bending drive device using the flexible element is not limited to these devices, and a known curved drive device can be used.
- the bending drive device includes the flexible element at the distal end portion, when used as a catheter, for example, it is inserted into a blood vessel or the like of a human body to strike an obstacle or a wall of the blood vessel. In such a case, the flexible element is deformed by contact with an obstacle or a wall of a blood vessel, thereby generating electric energy.
- the drive control section of the bending drive device drives the flexible element based on the electric energy
- the catheter can be efficiently guided to a target portion of the human body.
- the drive control unit may drive the flexible element by detecting the electric energy generated by the element as a signal of the electric energy via a wiring or the like, or the detection unit may convert the electric energy into a digital signal or the like. After conversion into a signal or the like, the flexible element may be driven in accordance with the signal via a wiring or the like.
- the bending driving device may include an amplification unit that amplifies electric energy generated by the flexible element.
- the flexible element is preferably provided at a distal end of the bending drive device in order to detect that the bending drive device has hit an obstacle.
- a member for protecting the flexible element may be provided at the tip.
- the bending drive device according to the present invention is a bending drive device that is used for inspection and repair in the industrial field and for an ophthalmic surgery or intraperitoneal cavity used for inspection and treatment in the medical field. Medical tubes including endoscopes and catheters for endoscopic surgery, tweezers, scissors, forceps, snares, laser scalpels in microsurgery technology
- a spatula and a clip A spatula and a clip.
- a flexible element that converts the deformation of the element into electric energy and that is driven by applying a voltage is provided at the tip, and the flexible element is provided.
- a bending drive device having a drive control unit for controlling the drive unit is inserted into an object, and the element collides with an obstacle to generate electric energy.
- the drive control unit drives the flexible element in response to a signal based on the occurrence of the bending element, and can be used as a driving method of a bending drive device.
- a flexible element that converts deformation into electric energy and is driven by applying a voltage is preferably used for a manipulator using the flexible element in a driving part such as a fingertip.
- the flexible element is used for the finger portion of the manipulator, the flexible element is deformed by contact with an object to generate electric energy, and responds to a signal based on the generation of the electric energy.
- the drive control unit drives the flexible element, the finger S of the manipulator can perform the operation of gripping the article.
- the flexible element performs both functions of the sensing unit and the driving unit, and that the manipulator has a simple device configuration.
- the flexible element is required to have flexibility because it has flexibility, durability, and durability in addition to being used as a bending driving device and a sensing unit of a manipulator.
- the present invention can also be suitably used for a known device using a sensing unit as a sensing device.
- typical examples of various devices incorporating the sensing device will be listed.
- the flexible element Since the flexible element has flexibility, the flexible element which starts heating when placed on a surface such as a power unit or the like when a person is present is preferably used as a sensing unit. Used as a pressure-sensitive cable using the electric heater and the flexible element as a sensing unit Let's do it.
- the anti-theft device using the flexible element as a sensing unit that detects the operation of a theft actor including opening and closing of the window and lifting of the article It can be suitably used.
- the flexible element Since the flexible element has flexibility and can easily follow the shape of the human body, it is suitable as a human body information detecting device obtained by minute body movement of the body propagated by the activity of the heart or respiration of the human body. Can be used.
- the present invention can be suitably used as a vacuum cleaner using the flexible element for sensing unevenness of the floor surface without damaging the floor surface as a sensing unit. It is suitable for use as a liquid flow velocity sensor or a wind pressure sensor that senses the flow velocity or wind pressure of a liquid or gas that can easily follow the internal shape of a tube such as a pipe.
- the present invention can be suitably used as a position detecting device using the flexible element such as a touch panel for detecting the position of a finger or an object in contact with the plate surface and detecting the position thereof as a sensing unit. Further, it can also be used for artificial skin for robots in which each electrode layer functions as a pain point.
- the flexible element is attached to a shoulder, a crotch, or the like, and the flexible element senses the movement of the muscle, and moves the prosthesis, leg, or limb as a driving unit.
- the flexible element can be suitably used as a prosthesis, a prosthesis or an auxiliary muscle used as a drive unit.
- the flexible element of the present invention can be freely deformed in shape because it has flexibility, it can be attached to devices other than the above devices regardless of the shape of the article. Since the flexible element can be freely deformed even when incorporated in the device, the configuration of the device is not limited, and thus it is suitable as a sensing unit. Examples of devices other than the above devices include an angular velocity sensor, a contact sensor for pachinko machines, an ultrasonic sensor, a device used for golf ball hitting practice, an impact sensor for shoes, and an acceleration sensor used for an acceleration device according to the present invention. It can be cited as a device that can suitably use the flexible element.
- Precipitation step The adsorbed phenanthrin gold complex was reduced in an aqueous solution containing sodium sulfite to form a gold electrode on the surface of the membrane ion exchange resin. At this time, the temperature of the aqueous solution was set at 60 to 80 ° C, and the phenanthrin gold complex was reduced for 6 hours while gradually adding sodium sulfite.
- (3) washing step the membrane ion-exchange resin having a gold electrode formed on the surface was taken out and washed with water at 70 ° C. for 1 hour. As a result, an ion-exchange resin composite of the ion-exchange resin on which the gold electrode was formed and the electrode layer was obtained.
- This ion-exchange resin composite was a bonded body of the ion-exchange resin and the electrode, and was a composite in which two outer layers on both sides were formed of an electrode layer via a film-like ion-exchange resin.
- the ion-exchange resin composite was cut into a length of 55 mm and a width of 10 mm.
- the cut ion-exchange resin complex is immersed in a 0.5 mol / L aqueous sodium chloride solution or a 0.5 M (CH) NCI aqueous solution for 24 hours.
- Example 1 a flexible element (thickness: 1.5 mm, length: 55 mm, width: 10 mm) of Example 1 was obtained.
- the ion forming a counter ion with the ion-exchange resin in the above-mentioned actuator is such that when the complex is immersed in a 0.5 mol / L aqueous sodium chloride solution, the ion species is sodium ion, and When immersed in 5M (CH) NCI aqueous solution, the ion species
- Example 2 was repeated in the same manner as in Example 1 except that the ion-exchange resin composite was cut into 55 mm in length and 15 mm in width, instead of being cut into 55 mm in length and 10 mm in width. A flexible element (1.5 mm thick, 55 mm long, 15 mm wide) was obtained.
- Example 4 a 2.5 mm thick ion exchange resin (trade name “Flemion”, manufactured by Asahi Glass Co., perfluorocarboxylic acid resin, ion exchange capacity 1.44meqZg ) was used in the same manner as in Example 1 to obtain a flexible element of Example 3 (2.5 mm in thickness, 55 mm in length, and 10 mm in width). (Example 4)
- the cut ion-exchange resin complex was mixed with 0.5 mol / L magnesium chloride (MgCl) water
- Example 2 Except that the flexible element of Example 1 (thickness: 1.5 mm, length: 55 mm, width: 10 mm) was obtained by immersion in the solution for 24 hours, the procedure was the same as in Example 1.
- the flexible device of Example 4 was obtained.
- the ion which forms a counter ion with the ion exchange resin in the above-mentioned actuator is Mg 2+ which is a divalent cation.
- each of the flexible elements of Examples 14 to 14 was horizontally fixed at one end by a fixing member 7, and a known voltmeter 8 was connected to lead wires 9 and 9 ′.
- a cantilever load is applied to each flexible element so that the deflection angle ⁇ (rad) becomes 0.70, 1.05, 1.57 by applying weight to the other end of each flexible element.
- the electromotive force was measured. The results are shown in Table 1.
- the flexible element of Example 1 had an electromotive force of 0.97 mV when the deflection angle was 0.70 rad (load 0.031 N), and the deflection angle was 0.70 rad (load 0.46 N).
- the electromotive force was 1.44 mV at the time of, and the electromotive force was 1.97 mV at the deflection angle of 0.70 rad (load: 0.069 N).
- the deflection angle and the electromotive force are linearly correlated, the degree of deformation of the flexible element can be obtained from the electromotive force, and the load can be obtained from the electromotive force. Therefore, it can be suitably used as a sensing unit of various devices.
- the flexible element of the second embodiment has the following relationship between the deflection angle and the electromotive force as in the case of the first embodiment. Since the area of the element in the plane direction is larger than that of the active element, it is possible to generate an electromotive force exceeding about lmV even with a deflection angle of 0.7 (rad), improving detection accuracy. be able to. As shown in Table 1, the flexible element of the third embodiment has the following correlation with the deflection angle and the electromotive force similarly to the first embodiment. The flexural force of the flexible element of Example 3 is 1.7 times the volume ratio at the deflection angle of 0.70 rad compared to the flexible element of Example 1, while the electromotive force is 3.
- a value of 1 or more is obtained, and a large electromotive force can be obtained by adjusting the thickness.
- the direction of increasing the thickness of the flexible element (the ratio of the thickness (d) to the area (LXW) of the element in the plane direction of 0.005 (mm- 1 ) or more) is determined by the direction of the plane of the flexible element. It is more advantageous to obtain a large electromotive force than to increase the area of the device. In other words, a larger thickness is advantageous for easily obtaining a large electromotive force.
- Example 4 showed an electromotive force eight times as large as that of Example 1 because the ions in the solution contained in the ion exchange resin were divalent ions. Was. This is thought to be due to the fact that ions having a small ionic radius were used as the ions serving as charge carriers.
- the flexible element of the present invention can easily convert deformation of the element into electric energy, and has flexibility and durability. It is suitable as. In addition, since it is composed of an electrode, an ion exchange resin and an aqueous solution without using a piezoelectric ceramic having a high specific gravity, it is suitable as a sensing unit because of its light weight, and also as a component for incorporation in a device.
- the present invention is a flexible element that converts element deformation into electric energy and is driven by applying a voltage. Therefore, the driving section and the driving section provided at the distal end of the bending drive device are provided. It can be suitably used as an element which is a sensing unit. Further, even when the flexible element is used for a driving part such as a fingertip of a manipulator, it can be suitably used as an element which is a driving part and a sensing part.
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- Analytical Chemistry (AREA)
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Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2003-182570 | 2003-06-26 | ||
JP2003182570 | 2003-06-26 |
Publications (1)
Publication Number | Publication Date |
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WO2005001406A1 true WO2005001406A1 (ja) | 2005-01-06 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2004/009008 WO2005001406A1 (ja) | 2003-06-26 | 2004-06-25 | 可撓性素子 |
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WO (1) | WO2005001406A1 (ja) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007093919A2 (en) * | 2006-02-14 | 2007-08-23 | Delphi Technologies, Inc. | Piezoelectric device |
WO2007093921A2 (en) * | 2006-02-14 | 2007-08-23 | Delphi Technologies, Inc. | Barrier coatings for a piezoelectric device |
JP2009232678A (ja) * | 2008-02-27 | 2009-10-08 | Nsk Ltd | 有機発電エラストマー積層体または有機発電エラストマー部材および誘電性エラストマーの伸張によって電力が発生する携帯情報端末 |
WO2010095581A1 (ja) * | 2009-02-18 | 2010-08-26 | 株式会社クラレ | マルチ積層変形センサ |
CN105058366A (zh) * | 2015-08-20 | 2015-11-18 | 宁波大学 | 一种四自由度压电微夹钳 |
CN107209070A (zh) * | 2015-01-29 | 2017-09-26 | 科睿Ta | 核心稳定性训练管理*** |
CN109940613A (zh) * | 2019-03-08 | 2019-06-28 | 南京理工大学 | 一种计算含压电材料机械臂动力学响应及控制的仿真方法 |
CN113176018A (zh) * | 2021-03-31 | 2021-07-27 | 西安交通大学 | 一种单侧电极离子聚合物压力感知阵列及其制备方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0810336A (ja) * | 1994-06-30 | 1996-01-16 | Agency Of Ind Science & Technol | 医療用チューブ |
JPH11132928A (ja) * | 1997-10-28 | 1999-05-21 | Olympus Optical Co Ltd | 触覚センサプローブ |
-
2004
- 2004-06-25 WO PCT/JP2004/009008 patent/WO2005001406A1/ja not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0810336A (ja) * | 1994-06-30 | 1996-01-16 | Agency Of Ind Science & Technol | 医療用チューブ |
JPH11132928A (ja) * | 1997-10-28 | 1999-05-21 | Olympus Optical Co Ltd | 触覚センサプローブ |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007093919A2 (en) * | 2006-02-14 | 2007-08-23 | Delphi Technologies, Inc. | Piezoelectric device |
WO2007093921A2 (en) * | 2006-02-14 | 2007-08-23 | Delphi Technologies, Inc. | Barrier coatings for a piezoelectric device |
WO2007093919A3 (en) * | 2006-02-14 | 2007-12-13 | Delphi Tech Inc | Piezoelectric device |
WO2007093921A3 (en) * | 2006-02-14 | 2007-12-27 | Delphi Tech Inc | Barrier coatings for a piezoelectric device |
JP2009232678A (ja) * | 2008-02-27 | 2009-10-08 | Nsk Ltd | 有機発電エラストマー積層体または有機発電エラストマー部材および誘電性エラストマーの伸張によって電力が発生する携帯情報端末 |
WO2010095581A1 (ja) * | 2009-02-18 | 2010-08-26 | 株式会社クラレ | マルチ積層変形センサ |
JPWO2010095581A1 (ja) * | 2009-02-18 | 2012-08-23 | 株式会社クラレ | マルチ積層変形センサ |
CN107209070A (zh) * | 2015-01-29 | 2017-09-26 | 科睿Ta | 核心稳定性训练管理*** |
CN105058366A (zh) * | 2015-08-20 | 2015-11-18 | 宁波大学 | 一种四自由度压电微夹钳 |
CN105058366B (zh) * | 2015-08-20 | 2017-03-22 | 宁波大学 | 一种四自由度压电微夹钳 |
CN109940613A (zh) * | 2019-03-08 | 2019-06-28 | 南京理工大学 | 一种计算含压电材料机械臂动力学响应及控制的仿真方法 |
CN113176018A (zh) * | 2021-03-31 | 2021-07-27 | 西安交通大学 | 一种单侧电极离子聚合物压力感知阵列及其制备方法 |
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