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公开(公告)号：US20040261897A1
公开(公告)日：2004-12-30
申请号：US10860113
申请日：2004-06-03
发明人： Eric Carlson , Li Song , Daniel M. Pinkas , Claus G. Lugmair
IPC分类号： B67C003/00
CPC分类号： B01F15/0445 , B01F3/188 , B01F13/0272 , B01F13/1055 , B01F15/0258 , B01F2015/0221 , B01F2215/0037 , B65B1/16 , B65B1/30 , G01G13/24
摘要： Method for preparing a mixed powder sample by mixing two or more different powders comprising transferring a quantity of a first powder to a mixing vessel and transferring a quantity of a second powder to the mixing vessel to form a powder bed in the mixing vessel comprising the first and second powders. The quantities of the powders are selected so the mixed sample has a predetermined ratio of first powder to second powder. The powder bed is fluidized to mix the powders and produce a mixed sample. The mixed sample weighs about 5 grams or less. The invention also includes apparatus for preparing mixed powder samples by mixing two or more different powders.
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2.发明申请Instrument for high throughput measurement of material physical properties and method of using same 失效用于材料物理性能高通量测量的仪器及其使用方法公开(公告)号：US20020029621A1
公开(公告)日：2002-03-14
申请号：US09779149
申请日：2001-02-08
发明人： Damian Hajduk , Eric Carlson , J. Christopher Freitag , Oleg Kolosov , James R. Engstrom , Adam Safir , Ravi Srinivasan , Leonid Matsiev
IPC分类号： G01N003/48
CPC分类号： B01L3/5085 , B01J2219/00707 , B01J2219/00718 , G01N5/00 , G01N11/00 , G01N19/00 , G01N29/02 , G01N29/222 , G01N2203/0286 , G01N2291/02466 , G01N2291/0255 , G01N2291/02818 , G01N2291/106 , Y10T436/12
摘要： An apparatus and method for screening combinatorial libraries of materials by measuring the response of individual library members to mechanical perturbations is described. The apparatus generally includes a sample holder for containing the library members, an array of probes for mechanically perturbing individual library members, and an array of sensors for measuring the response of each of the library members to the mechanical perturbations. Library members undergoing screening make up a sample array, and individual library members constitute elements of the sample array that are confined to specific locations on the sample holder. During screening, the apparatus mechanically perturbs individual library members by displacing the sample array (sample holder) and the array of probes. Typically, all of the elements of the sample array are perturbed simultaneously, but the apparatus also can also perturb individual or groups of sample array elements sequentially. The flexible apparatus and method can screen libraries of materials based on many different bulk physical properties, including Young's modulus (flexure, uniaxial extension, biaxial compression, and shear); hardness (indentation), failure (stress and strain at failure, toughness), adhesion (tack, loop tack), and flow (viscosity, melt flow indexing, and rheology), among others.
摘要翻译： 描述了通过测量单个文库成员对机械扰动的响应来筛选材料组合文库的装置和方法。 该装置通常包括用于容纳库构件的样本保持器，用于机械扰乱各个库构件的探针阵列，以及用于测量每个库构件对机械扰动的响应的传感器阵列。 正在进行筛选的图书馆成员组成一个样本数组，单独的图书馆成员构成了样本数组的元素，它们限于样本持有者的特定位置。 在筛选期间，设备通过移位样品阵列（样品架）和探针阵列来机械地干扰各个库成员。 通常，样本阵列的所有元素都被同时扰动，但是该装置也可以顺序扰乱单个或组的样本阵列元素。 灵活的装置和方法可以基于许多不同的体积物理性质（包括杨氏模量（挠曲，单轴延伸，双轴压缩和剪切））筛选材料库; 硬度（压痕），破坏（破坏时的应力和应变，韧性），粘附性（粘性，环粘性）和流动性（粘度，熔体流动指数和流变学）等。
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3.发明申请公开(公告)号：US20020023507A1
公开(公告)日：2002-02-28
申请号：US09779148
申请日：2001-02-08
IPC分类号： G01N003/48
CPC分类号： B01L3/5085 , B01J2219/00707 , B01J2219/00718 , G01N5/00 , G01N11/00 , G01N19/00 , G01N29/02 , G01N29/222 , G01N2203/0286 , G01N2291/02466 , G01N2291/0255 , G01N2291/02818 , G01N2291/106 , Y10T436/12
摘要： An apparatus and method for screening combinatorial libraries of materials by measuring the response of individual library members to mechanical perturbations is described. The apparatus generally includes a sample holder for containing the library members, an array of probes for mechanically perturbing individual library members, and an array of sensors for measuring the response of each of the library members to the mechanical perturbations. Library members undergoing screening make up a sample array, and individual library members constitute elements of the sample array that are confined to specific locations on the sample holder. During screening, the apparatus mechanically perturbs individual library members by displacing the sample array (sample holder) and the array of probes. Typically, all of the elements of the sample array are perturbed simultaneously, but the apparatus also can also perturb individual or groups of sample array elements sequentially. The flexible apparatus and method can screen libraries of materials based on many different bulk physical properties, including Young's modulus (flexure, uniaxial extension, biaxial compression, and shear); hardness (indentation), failure (stress and strain at failure, toughness), adhesion (tack, loop tack), and flow (viscosity, melt flow indexing, and rheology), among others.
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公开(公告)号：US20040093932A1
公开(公告)日：2004-05-20
申请号：US10712617
申请日：2003-11-12
发明人： Damian Hajduk , Eric Carlson , Ravi Srinivasan
IPC分类号： G01N011/10 , G01N011/14 , G01N003/24
CPC分类号： G01N3/24 , G01N11/16 , G01N2203/0051 , G01N2203/0286 , G01N2203/0623
摘要： The present invention relates to a miniature rheometer, a parallel rheometer, and improved force sensor elements which may advantageously be used in combination with the miniature rheometer and the parallel rheometer. The miniature rheometer is adapted to determine rheological characteristics of materials which are provided in the form of small quantity samples. The miniature rheometer comprises an actuating element, a sensing element and a feedback circuit to provide rebalance of the shear force applied by the sample to the sensing element, which insures an exceptional stiffness in determining the shear strain so as to allow measurements of high accuracy. The parallel rheometer of the present invention allows simultaneous measurements of a plurality of samples so as to allow of a plurality of samples within a short time period. The force sensor element according to the present invention allows simultaneous measurement of a shear force and a normal force applied to the sensor element. Moreover, a rheometer is provided which comprises a force sensor based on stress-optic material.
摘要翻译： 本发明涉及微型流变仪，平行流变仪和改进的力传感器元件，其可有利地与微型流变仪和平行流变仪组合使用。 微型流变仪适用于确定以少量样品形式提供的材料的流变特性。 微型流变仪包括致动元件，感测元件和反馈电路，以提供由样品施加到感测元件的剪切力的重新平衡，这确保了确定剪切应变的特殊刚度，从而允许高精度的测量。 本发明的并行流变仪允许多个样本的同时测量，以便在短时间内允许多个样本。 根据本发明的力传感器元件允许同时测量施加到传感器元件的剪切力和法向力。 此外，提供了一种流变仪，其包括基于应力光学材料的力传感器。
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公开(公告)号：US20030133113A1
公开(公告)日：2003-07-17
申请号：US10331215
申请日：2002-12-30
发明人： Damian Hajduk , Eric Carlson
IPC分类号： G01J004/00
CPC分类号： G01N21/21 , B01J2219/00286 , B01J2219/00315 , B01J2219/00585 , B01J2219/00659 , B01J2219/00707 , B01J2219/0072 , B01J2219/00745 , C40B40/18 , C40B60/14 , G01J4/04 , G01N2201/0813
摘要： A method and apparatus for characterizing and screening an array of material samples is disclosed. The apparatus includes a sample block having a plurality of regions for containing the material samples, a polarized light source to illuminate the materials, an analyzer having a polarization direction different than the polarization direction of the polarized light source, and a detector for analyzing changes in the intensity of the light beams. The light source, together with a polarizer, may include a plurality of light beams to simultaneously illuminate the entire array of materials with linearly polarized light so that characterization and screening can be performed in parallel. In addition, the materials in the sample block maybe subjected to different environmental conditions or mechanical stresses, and the detector analyzes the array as a function of the different environmental conditions or mechanical stresses.
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公开(公告)号：US20030029229A1
公开(公告)日：2003-02-13
申请号：US10262303
申请日：2002-10-01
发明人： Damian Hajduk , Eric Carlson , Ravi Srinivasan
IPC分类号： G01N011/10
CPC分类号： G01N3/24 , G01N11/16 , G01N2203/0051 , G01N2203/0286 , G01N2203/0623
摘要： The present invention relates to a miniature rheometer, a parallel rheometer, and improved force sensor elements which may advantageously be used in combination with the miniature rheometer and the parallel rheometer. The miniature rheometer is adapted to determine Theological characteristics of materials which are provided in the form of small quantity samples. The miniature rheometer comprises an actuating element, a sensing element and a feedback circuit to provide rebalance of the shear force applied by the sample to the sensing element, which insures an exceptional stiffness in determining the shear strain so as to allow measurements of high accuracy. The parallel rheometer of the present invention allows simultaneous measurements of a plurality of samples so as to allow of a plurality of samples within a short time period. The force sensor element according to the present invention allows simultaneous measurement of a shear force and a normal force applied to the sensor element. Moreover, a rheometer is provided which comprises a force sensor based on stress-optic material.
摘要翻译： 本发明涉及微型流变仪，平行流变仪和改进的力传感器元件，其可有利地与微型流变仪和平行流变仪组合使用。 微型流变仪适用于确定以少量样品形式提供的材料的神学特性。 微型流变仪包括致动元件，感测元件和反馈电路，以提供由样品施加到感测元件的剪切力的重新平衡，这确保了确定剪切应变的特殊刚度，从而允许高精度的测量。 本发明的并行流变仪允许多个样本的同时测量，以便在短时间内允许多个样本。 根据本发明的力传感器元件允许同时测量施加到传感器元件的剪切力和法向力。 此外，提供了一种流变仪，其包括基于应力光学材料的力传感器。
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公开(公告)号：US20030033860A1
公开(公告)日：2003-02-20
申请号：US10261945
申请日：2002-10-01
发明人： Damian Hajduk , Eric Carlson , Ravi Srinivasan
IPC分类号： G01N011/10
CPC分类号： G01N3/24 , G01N11/16 , G01N2203/0051 , G01N2203/0286 , G01N2203/0623
摘要： The present invention relates to a miniature rheometer, a parallel rheometer, and improved force sensor elements which may advantageously be used in combination with the miniature rheometer and the parallel rheometer. The miniature rheometer is adapted to determine rheological characteristics of materials which are provided in the form of small quantity samples. The miniature rheometer comprises an actuating element, a sensing element and a feedback circuit to provide rebalance of the shear force applied by the sample to the sensing element, which insures an exceptional stiffness in determining the shear strain so as to allow measurements of high accuracy. The parallel rheometer of the present invention allows simultaneous measurements of a plurality of samples so as to allow of a plurality of samples within a short time period. The force sensor element according to the present invention allows simultaneous measurement of a shear force and a normal force applied to the sensor element. Moreover, a rheometer is provided which comprises a force sensor based on stress-optic material.
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公开(公告)号：US20030024302A1
公开(公告)日：2003-02-06
申请号：US10262369
申请日：2002-10-01
发明人： Damian Hajduk , Eric Carlson , Ravi Srinivasan
IPC分类号： G01N011/10
CPC分类号： G01N3/24 , G01N11/16 , G01N2203/0051 , G01N2203/0286 , G01N2203/0623
摘要： The present invention relates to a miniature rheometer, a parallel rheometer, and improved force sensor elements which may advantageously be used in combination with the miniature rheometer and the parallel rheometer. The miniature rheometer is adapted to determine rheological characteristics of materials which are provided in the form of small quantity samples. The miniature rheometer comprises an actuating element, a sensing element and a feedback circuit to provide rebalance of the shear force applied by the sample to the sensing element, which insures an exceptional stiffness in determining the shear strain so as to allow measurements of high accuracy. The parallel rheometer of the present invention allows simultaneous measurements of a plurality of samples so as to allow of a plurality of samples within a short time period. The force sensor element according to the present invention allows simultaneous measurement of a shear force and a normal force applied to the sensor element. Moreover, a rheometer is provided which comprises a force sensor based on stress-optic material.
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公开(公告)号：US20020194900A1
公开(公告)日：2002-12-26
申请号：US10205060
申请日：2002-07-25
发明人： Damian Hajduk , Eric Carlson , Ravi Srinivasan
IPC分类号： G01N029/02
CPC分类号： G01N3/24 , G01N11/16 , G01N2203/0051 , G01N2203/0286 , G01N2203/0623
摘要： The present invention relates to a miniature rheometer, a parallel rheometer, and improved force sensor elements which may advantageously be used in combination with the miniature rheometer and the parallel rheometer. The miniature rheometer is adapted to determine rheological characteristics of materials which are provided in the form of small quantity samples. The miniature rheometer comprises an actuating element, a sensing element and a feedback circuit to provide rebalance of the shear force applied by the sample to the sensing element, which insures an exceptional stiffness in determining the shear strain so as to allow measurements of high accuracy. The parallel rheometer of the present invention allows simultaneous measurements of a plurality of samples so as to allow of a plurality of samples within a short time period. The force sensor element according to the present invention allows simultaneous measurement of a shear force and a normal force applied to the sensor element. Moreover, a rheometer is provided which comprises a force sensor based on stress-optic material.
摘要翻译： 本发明涉及微型流变仪，平行流变仪和改进的力传感器元件，其可有利地与微型流变仪和平行流变仪组合使用。 微型流变仪适用于确定以少量样品形式提供的材料的流变特性。 微型流变仪包括致动元件，感测元件和反馈电路，以提供由样品施加到感测元件的剪切力的重新平衡，这确保了确定剪切应变的特殊刚度，以便允许高精度的测量。 本发明的并行流变仪允许多个样本的同时测量，以便在短时间内允许多个样本。 根据本发明的力传感器元件允许同时测量施加到传感器元件的剪切力和法向力。 此外，提供了一种流变仪，其包括基于应力光学材料的力传感器。
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