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    • 1. 发明授权
    • Crosslinked elastomer body for sensor, and production method therefor
    • 传感器用交联弹性体及其制造方法
    • US07563393B2
    • 2009-07-21
    • US11855601
    • 2007-09-14
    • Tomonori HayakawaYuuki SaitouKazunobu HashimotoRentaro Kato
    • Tomonori HayakawaYuuki SaitouKazunobu HashimotoRentaro Kato
    • H01B1/00H01B1/04H01B1/24
    • H01B1/24
    • A crosslinked elastomer body is composed of an electrically conductive composition comprising an electrically conductive filler and an insulative elastomer (matrix). The electrically conductive filler is in a spherical particulate form and has an average particle diameter of 0.05 to 100 μm. The electrically conductive filler has a critical volume fraction (φc) of not less than 30 vol % as determined at a first inflection point of a percolation curve at which an insulator-conductor transition occurs with an electrical resistance steeply reduced when the electrically conductive filler is gradually added to the elastomer. A resistance observed under compressive strain or bending strain increases according to the strain over a resistance observed under no strain when the electrically conductive filler is present in a volume fraction not less than the critical volume fraction (φc) in the composition.
    • 交联弹性体由包含导电填料和绝缘弹性体(基质)的导电组合物构成。 导电填料为球形颗粒形式,平均粒径为0.05-100μm。 导电填料具有不小于30vol%的临界体积分数(phic),如在渗透曲线的第一拐点处确定的,在该渗透曲线处发生绝缘体 - 导体转变,当导电填料为 逐渐加入弹性体。 当在不小于组合物中的临界体积分数(phic)的体积分数中存在导电填料时,在压应变或弯曲应变下观察到的电阻随着在无应变下观察到的电阻的应变而增加。
    • 3. 发明授权
    • Deformation sensor
    • 变形传感器
    • US07703333B2
    • 2010-04-27
    • US11896904
    • 2007-09-06
    • Tomonori HayakawaYuuki SaitouKazunobu HashimotoRentaro Kato
    • Tomonori HayakawaYuuki SaitouKazunobu HashimotoRentaro Kato
    • G01N3/20
    • G01L1/20
    • A deformation sensor, which has excellent workability and a high degree of freedom in shape design and which can detect deformation and load in a wide area of components and portions, has a main body of sensor, electrodes which are connected to the main body of sensor and can output electric resistances, and a restraining component which restrains elastic deformation of at least a part of the main body of sensor. The main body of sensor has an elastomer, and spherical conductive fillers which are blended into the elastomer at a high filling rate in an approximately single-particle state, and is elastically deformable. In the main body of sensor, as an elastic deformation increases, the electric resistance increases.
    • 变形传感器具有优异的可加工性和形状设计的高度自由度,并且可以检测广泛的部件和部分的变形和负载,具有传感器主体,连接到传感器主体的电极 并且可以输出电阻,以及限制传感器主体的至少一部分的弹性变形的限制部件。 传感器主体具有弹性体,球形导电填料以大约单粒子状态的高填充率共混到弹性体中,并且是可弹性变形的。 在传感器主体中,随着弹性变形的增加,电阻增加。
    • 4. 发明申请
    • Deformation sensor
    • 变形传感器
    • US20080066564A1
    • 2008-03-20
    • US11896904
    • 2007-09-06
    • Tomonori HayakawaYuuki SaitouKazunobu HashimotoRentaro Kato
    • Tomonori HayakawaYuuki SaitouKazunobu HashimotoRentaro Kato
    • G01L1/22
    • G01L1/20
    • A deformation sensor, which has excellent workability and a high degree of freedom in shape design and which can detect deformation and load in a wide area of components and portions, has a main body of sensor, electrodes which are connected to the main body of sensor and can output electric resistances, and a restraining component which restrains elastic deformation of at least a part of the main body of sensor. The main body of sensor has an elastomer, and spherical conductive fillers which are blended into the elastomer at a high filling rate in an approximately single-particle state, and is elastically deformable. In the main body of sensor, as an elastic deformation increases, the electric resistance increases.
    • 变形传感器具有优异的可加工性和形状设计的高度自由度,并且可以检测广泛的部件和部分的变形和负载,具有传感器主体,连接到传感器主体的电极 并且可以输出电阻,以及限制传感器主体的至少一部分的弹性变形的限制部件。 传感器主体具有弹性体,球形导电填料以大约单粒子状态的高填充率共混到弹性体中,并且是可弹性变形的。 在传感器主体中,随着弹性变形的增加,电阻增加。
    • 6. 发明授权
    • Deformable sensor system
    • 变形传感器系统
    • US08149211B2
    • 2012-04-03
    • US12115928
    • 2008-05-06
    • Tomonori HayakawaTetsuyoshi ShibataRentaro KatoKazunobu HashimotoYo KatoToshiharu Mukai
    • Tomonori HayakawaTetsuyoshi ShibataRentaro KatoKazunobu HashimotoYo KatoToshiharu Mukai
    • G06F3/045
    • G01L1/205G06F3/0414G06F3/045
    • A deformable sensor system that can be used for pressure-distribution sensors. The deformable sensor system makes it possible to obtain a pressure distribution with a much higher accuracy, while reducing the number of electrodes. The system utilizes a deformable sensor which can detect deformation as the electric resistivity of the surface increases monotonically as an elastic deformation variation in each of the elastic deformations increases. Based on a voltage being detected by means of a detecting unit, the deformable sensor electric-resistivity variation computing unit computes the variation of the electric resistivity based on the method of least squares with a restriction condition imposed thereon. The system uses such a technology as “EIT” that is based on an inverse-problem theory. At an external-force position computing unit, a position in a pressure-receiving surface, position which receives an external force, is computed based on the computed electric-resistivity variation.
    • 可用于压力分布传感器的可变形传感器系统。 可变形传感器系统使得可以以更高的精度获得压力分布,同时减少电极的数量。 该系统利用可变形的传感器,当每个弹性变形中的弹性变形变化增加时,随着表面的电阻率单调增加,可以检测变形。 基于通过检测单元检测到的电压,可变形传感器电阻率变化计算单元基于施加有限制条件的最小二乘法来计算电阻率的变化。 该系统采用基于逆问题理论的“EIT”技术。 在外力位置计算单元,基于所计算的电阻率变化来计算受压表面中接受外力的位置。
    • 8. 发明申请
    • DEFORMABLE SENSOR SYSTEM
    • 可变传感器系统
    • US20090120696A1
    • 2009-05-14
    • US12115928
    • 2008-05-06
    • Tomonori HayakawaTetsuyoshi ShibataRentaro KatoKazunobu HashimotoYo KatoToshiharu Mukai
    • Tomonori HayakawaTetsuyoshi ShibataRentaro KatoKazunobu HashimotoYo KatoToshiharu Mukai
    • G06F3/045
    • G01L1/205G06F3/0414G06F3/045
    • To provide a deformable sensor system, which makes it possible to obtain a pressure distribution with a much higher accuracy, while reducing the number of electrodes.A deformable sensor 12 comprises an elastic material whose electric resistivity, when all types of elastic deformations are caused therein respectively, increases monotonically as an elastic deformation variation in each of the elastic deformations increases. Based on a voltage being detected by means of a detecting unit 22, the deformable sensor 12's electric-resistivity variation δρ(x, y), which minimizes an evaluation Function J of Equation (1) while satisfying a condition of Equation (2), is computed at an electric-resistivity variation computing unit 25 using such a technology as “EIT” that is based on an inverse-problem theory. At an external-force position computing unit 26, a position in a pressure-receiving surface 12a, position which receives an external force, is computed based on the computed electric-resistivity variation δρ(x, y). J=∥δV(m,n)−Sm,n,x,y·δρ(x,y)∥2  (1) However, δρ(x,y)≧0  (2)
    • 为了提供可变形的传感器系统,这使得可以以更高的精度获得压力分布,同时减少电极的数量。 可变形传感器12包括弹性材料,当其中分别引起所有类型的弹性变形时,其电阻率随着每个弹性变形中的弹性变形变化增加而单调增加。 基于通过检测单元22检测到的电压,可变形传感器12的电阻率变化deltarho(x,y)在满足等式(2)的条件的同时使等式(1)的评估函数J最小化, 在电阻率变化计算单元25上使用基于逆问题理论的诸如“EIT”的技术来计算。 在外力位置计算单元26中,基于所计算的电阻率变化量deltarho(x,y)计算受压表面12a中承受外力的位置的位置。 J =∥deltaV(m,n)-Sm,n,x,y.deltarho(x,y)‖2(1) )<?in-line-formula description =“In-line Formulas”end =“tail”?> <?in-line-formula description =“In-line Formulas”end =“lead”?>然而,deltarho(x ,y)> = 0(2)<?in-line-formula description =“In-line Formulas”end =“tail”?>