公开(公告)号：US20140202236A1

公开(公告)日：2014-07-24

申请号：US14238043

申请日：2012-08-03

Applicant: Nigel Doe ,  Peter Foster

Inventor： Nigel Doe ,  Peter Foster

IPC: G01N11/04

CPC classification number: G01N11/142 ,  G01N11/04 ,  G01N11/14 ,  G01N2011/0006 ,  G01N2011/0013

Abstract: A rheometer includes a drive shaft, a drag cup motor for rotating the drive shaft, a first measuring object supported by the drive shaft, a second measuring object, a linear position sensor, and processing and control electronics. The linear position sensor includes a target (e.g., an aluminum target) mounted to the drive shaft, and a pair of coils. The linear position sensor is configured to measure thermal expansion of the drive shaft based on a change in impedance of the coils resulting from a displacement of the target relative to the coils. The processing and control electronics are in communication with the coils and are configured to adjust a position of one of the measuring objects relative to the other based on a change in impedance of the coils resulting from a displacement of the target relative to the coils, thereby to maintain a substantially constant measurement gap therebetween.

Abstract translation: 流变仪包括驱动轴，用于旋转驱动轴的牵引杯马达，由驱动轴支撑的第一测量对象，第二测量对象，线性位置传感器和处理和控制电子装置。 线性位置传感器包括安装到驱动轴的目标（例如，铝靶）和一对线圈。 线性位置传感器被配置为基于由靶相对于线圈的位移导致的线圈阻抗的变化来测量驱动轴的热膨胀。 处理和控制电子设备与线圈连通，并且被配置为基于由目标物相对于线圈的位移导致的线圈的阻抗的变化来调整测量对象之一相对于彼此的位置，由此 以保持它们之间基本恒定的测量间隙。

公开(公告)号：US20070295055A1

公开(公告)日：2007-12-27

申请号：US11762375

申请日：2007-06-13

Applicant: Nigel Doe

Inventor： Nigel Doe

IPC: G01N11/14 ,  G01L5/00 ,  G01L25/00 ,  G01M1/10

CPC classification number: G01N11/14

Abstract: A method of calibrating the torque outputs of a rheometer by using a calibrating object with a certified moment of inertia, measuring the moment of inertia of the calibrating object using the rheometer, and calculating the torque adjustment factor by dividing the certified moment of inertia value by the measured moment of inertia value. The torque adjustment factor is applied to correct subsequent measurements of rheological properties conducted using the rheometer. The torque adjustment factor may be double-checked for reproducibility by measuring the moment of inertia of the calibrating object, correcting it with the torque adjustment factor, and comparing it with its certified moment of inertia value.

Abstract translation: 通过使用具有经认证的惯性矩的校准对象来校准流变仪的扭矩输出的方法，使用流变仪测量校准物体的惯性矩，并且通过将经过认证的惯性矩值除以来计算扭矩调节系数 测量的惯性矩值。 应用扭矩调节因子来校正使用流变仪进行的流变性能的后续测量。 通过测量校准物体的转动惯量，用扭矩调整系数进行校正，并将其与其经过认证的转动惯量值进行比较，可以对转矩调节系数进行双重检查。

公开(公告)号：US09534996B2

公开(公告)日：2017-01-03

申请号：US14238043

申请日：2012-08-03

Applicant: Nigel Doe ,  Peter Foster

Inventor： Nigel Doe ,  Peter Foster

IPC: G01N11/00 ,  G01N11/04 ,  G01N11/14

CPC classification number: G01N11/142 ,  G01N11/04 ,  G01N11/14 ,  G01N2011/0006 ,  G01N2011/0013

Abstract: A rheometer includes a drive shaft, a drag cup motor for rotating the drive shaft, a first measuring object supported by the drive shaft, a second measuring object, a linear position sensor, and processing and control electronics. The linear position sensor includes a target (e.g., an aluminum target) mounted to the drive shaft, and a pair of coils. The linear position sensor is configured to measure thermal expansion of the drive shaft based on a change in impedance of the coils resulting from a displacement of the target relative to the coils. The processing and control electronics are in communication with the coils and are configured to adjust a position of one of the measuring objects relative to the other based on a change in impedance of the coils resulting from a displacement of the target relative to the coils, thereby to maintain a substantially constant measurement gap therebetween.

Abstract translation: 流变仪包括驱动轴，用于旋转驱动轴的牵引杯马达，由驱动轴支撑的第一测量对象，第二测量对象，线性位置传感器和处理和控制电子装置。 线性位置传感器包括安装到驱动轴的目标（例如，铝靶）和一对线圈。 线性位置传感器被配置为基于由靶相对于线圈的位移导致的线圈阻抗的变化来测量驱动轴的热膨胀。 处理和控制电子设备与线圈连通，并且被配置为基于由目标物相对于线圈的位移导致的线圈的阻抗的变化来调整测量对象之一相对于彼此的位置，由此 以保持它们之间基本恒定的测量间隙。

公开(公告)号：US07594429B2

公开(公告)日：2009-09-29

申请号：US11603087

申请日：2006-11-22

Applicant: Matthew Liberatore ,  Norman Wagner ,  Nigel Doe

Inventor： Matthew Liberatore ,  Norman Wagner ,  Nigel Doe

IPC: G01N11/10

CPC classification number: G01N11/14 ,  G01N11/142

Abstract: A rheometric system includes an optical encoder coupled to a rotating shaft and configured to detect a rotational position of the shaft with respect to a reference. The rotational information is forwarded to a program or memory. An optical rotation plate is mechanically fastenable to the rotating shaft. A laser is provided to probe optical properties of a fluid sample proximate to the optical rotation plate. The system includes a detector system for measuring laser light scattered or transmitted through the sample chamber. The detector system is coupled to a memory that stores optical data collected after light impinges on the optical plate. Experimental fluid sample optical data and background optical data are each stored as a data structure that creates a point by point map of rotational position of the sample plate with the optical data collected thereat. A program or routine is provided that can correct point by point along the optical rotation plate the experimental sample optical data using the background optical data.

Abstract translation: 流变仪系统包括耦合到旋转轴并配置成检测轴相对于基准的旋转位置的光学编码器。 旋转信息被转发到程序或存储器。 光学旋转板可机械地固定在旋转轴上。 提供激光以探测靠近光学旋转板的流体样品的光学性质。 该系统包括用于测量散射或透过样品室的激光的检测器系统。 检测器系统耦合到存储器，其存储在光照射在光学板上之后收集的光学数据。 实验流体样本光学数据和背景光学数据各自存储为数据结构，其创建了样本板的旋转位置的点对映体，其中收集了该光学数据。 提供了可以使用背景光学数据沿光学旋转板逐点校正实验样品光学数据的程序或程序。

公开(公告)号：US07168299B2

公开(公告)日：2007-01-30

申请号：US11075338

申请日：2005-03-09

Applicant: Nigel Doe ,  Peter Foster

Inventor： Nigel Doe ,  Peter Foster

IPC: G01N11/00

CPC classification number: G01N11/14 ,  G01N2011/002

Abstract: A rotary rheometer having a an upper heating/cooling assembly and a lower heating/cooling assembly located opposite one another opposite a sample gap. The lower heating/cooling assembly may comprise a Peltier heater and the upper heating/cooling assembly preferably comprises a heating element that mates with a heat spreader for heating and cooling the area above the sample and providing more uniform heating and cooling across the sample gap while also minimizing any chimney effect within the rheometer and/or providing heating/cooling capability that is insensitive to changes in the gap between an upper geometry and the lower heating/cooling assembly. The upper heating/cooling assembly may further comprise a cooling channel for cooling the upper heating/cooling assembly.

Abstract translation: 具有上部加热/冷却组件和相对于样品间隙相对设置的下部加热/冷却组件的旋转流变仪。 下部加热/冷却组件可以包括珀尔帖加热器，并且上部加热/冷却组件优选地包括加热元件，其与散热器相配合，用于加热和冷却样品上方的区域，并且在样品间隙上提供更均匀的加热和冷却，同时 还使流变仪内的任何烟囱效应最小化和/或提供对上部几何形状和下部加热/冷却组件之间的间隙变化不敏感的加热/冷却能力。 上部加热/冷却组件还可以包括用于冷却上部加热/冷却组件的冷却通道。

公开(公告)号：US20060144128A1

公开(公告)日：2006-07-06

申请号：US11364342

申请日：2006-03-01

Applicant: Nigel Doe ,  Peter Foster

Inventor： Nigel Doe ,  Peter Foster

IPC: G01N11/14

CPC classification number: F16C32/044 ,  G01N11/14 ,  G01N11/142

Abstract: A rotary rheometer having a magnetic thrust bearing. The thrust disk of the magnetic thrust bearing being situated between a pair of magnetic actuator assemblies and extending beyond the circumference of the actuator assemblies so as to encompass the magnetic flux lines generated by the actuator assemblies, thus minimizing likelihood of an undesirable preferential position or side load.

Abstract translation: 具有磁力推力轴承的旋转流变仪。 磁力推力轴承的推力盘位于一对磁性致动器组件之间并且延伸超过致动器组件的圆周，以便包围由致动器组件产生的磁通线，从而最小化不期望的优先位置或侧面的可能性 加载。

公开(公告)号：US06952950B2

公开(公告)日：2005-10-11

申请号：US10382589

申请日：2003-03-07

Applicant: Nigel Doe ,  Peter Foster

Inventor： Nigel Doe ,  Peter Foster

IPC: G01D3/02 ,  G01N11/00 ,  G01N11/14 ,  G01N11/16

CPC classification number: G01D3/022 ,  G01N11/14 ,  G01N11/142 ,  G01N2011/0006 ,  G01N2011/002

Abstract: A system and method for automatic identification of a detachable component of an instrument is disclosed. The detachable component includes a machine-readable device that contains information associated with the detachable component. The machine-readable device can be a bar code, a variable depth pattern, a magnetic stripe, or the like. The information contained within the machine-readable device can include one or more of serial number, type, material, dimensions, and calibration data of the detachable component. The instrument includes a reader that is configured to obtain the information from the machine-readable device.

Abstract translation: 公开了一种用于自动识别仪器的可拆卸部件的系统和方法。 可拆卸组件包括包含与可拆卸组件相关联的信息的机器可读设备。 机器可读装置可以是条形码，可变深度图案，磁条等。 包含在机器可读设备中的信息可以包括可拆卸组件的序列号，类型，材料，尺寸和校准数据中的一个或多个。 该仪器包括被配置为从机器可读设备获取信息的读取器。

公开(公告)号：US06798099B1

公开(公告)日：2004-09-28

申请号：US10617712

申请日：2003-07-14

Applicant: Nigel Doe

Inventor： Nigel Doe

IPC: H02K1100

CPC classification number: G01N11/14 ,  G01K7/36 ,  G01K13/08 ,  G01N2011/002

Abstract: Devices, systems and methods are disclosed for sensing the temperature of a drag cup within a motor of a rheometer. Such a device includes a coil in communication with a source of current and in close enough proximity to a drag cup such that the coil senses the temperature of the drag cup through fluctuations in electrical activity across the coil.

Abstract translation: 公开了用于感测流变仪电动机内的拖杯的温度的装置，系统和方法。 这种装置包括与电流源连通并且足够靠近牵引杯的线圈，使得线圈通过绕线圈的电活动的波动来感测阻力杯的温度。

公开(公告)号：US10527535B2

公开(公告)日：2020-01-07

申请号：US14238044

申请日：2012-08-03

Applicant: Nigel Doe ,  Peter Foster

Inventor： Nigel Doe ,  Peter Foster

IPC: G01N11/14

Abstract: A rotary rheometer includes a drive shaft and a dual read head optical encoder that is configured to measure angular displacement or angular velocity of the drive shaft.

公开(公告)号：US20070193343A1

公开(公告)日：2007-08-23

申请号：US11603087

申请日：2006-11-22

Applicant: Matthew Liberatore ,  Norman Wagner ,  Nigel Doe

Inventor： Matthew Liberatore ,  Norman Wagner ,  Nigel Doe

IPC: G01N11/14 ,  G01N21/84

CPC classification number: G01N11/14 ,  G01N11/142

Abstract: A rheometric system includes an optical encoder coupled to a rotating shaft and configured to detect a rotational position of the shaft with respect to a reference. The rotational information is forwarded to a program or memory. An optical rotation plate is mechanically fastenable to the rotating shaft. A laser is provided to probe optical properties of a fluid sample proximate to the optical rotation plate. The system includes a detector system for measuring laser light scattered or transmitted through the sample chamber. The detector system is coupled to a memory that stores optical data collected after light impinges on the optical plate. Experimental fluid sample optical data and background optical data are each stored as a data structure that creates a point by point map of rotational position of the sample plate with the optical data collected thereat. A program or routine is provided that can correct point by point along the optical rotation plate the experimental sample optical data using the background optical data.

Abstract translation: 流变仪系统包括耦合到旋转轴并配置成检测轴相对于基准的旋转位置的光学编码器。 旋转信息被转发到程序或存储器。 光学旋转板可机械地固定在旋转轴上。 提供激光以探测靠近光学旋转板的流体样品的光学性质。 该系统包括用于测量散射或透过样品室的激光的检测器系统。 检测器系统耦合到存储器，其存储在光照射在光学板上之后收集的光学数据。 实验流体样本光学数据和背景光学数据各自存储为数据结构，其创建了样本板的旋转位置的点对映体，其中收集了该光学数据。 提供了可以使用背景光学数据沿光学旋转板逐点校正实验样品光学数据的程序或程序。