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公开(公告)号：US06840668B1
公开(公告)日：2005-01-11
申请号：US10626696
申请日：2003-07-25
IPC分类号： G01N25/20 , B65D17/30 , G01N5/04 , G01N35/02 , G01N35/04 , B25J15/00 , G01N35/10 , G05B19/04
CPC分类号： G01N35/04 , G01N2035/0403 , G01N2035/0465
摘要： The present invention relates to apparatus, systems, and methods for opening an autosampler sealed sample pan prior to TGA testing. The sealed sample pan comprises a pan, cover, and bail. A notch is formed in the seal sample pan cover. The cover can be opened by applying a concentrated force to the inside of the notch with a punch element integrated into the autosampler. This causes the center disk portion of the cover to be partially sheared and the sealed sample pan to be opened. It also prevents the punch element from touching the sample. A force sensor is used to determine if the cover has been opened. If the cover has been opened, then the sample pan is loaded to the TGA balance. If the cover has not been opened, the autosampler will not load the pan and will automatically move to the next sealed sample pan.
摘要翻译： 本发明涉及在TGA测试之前打开自动进样器密封样品盘的装置，系统和方法。 密封的样品盘包括锅，盖和保释。 在密封样品盘盖中形成切口。 通过将集中的力通过集成到自动进样器中的冲头元件向凹口的内部施加集中力来打开盖。 这使得盖的中心盘部分被部分地剪切并且密封的样品盘被打开。 也可以防止冲头元件接触样品。 力传感器用于确定盖子是否打开。 如果盖已经打开，则样品盘将被加载到TGA天平。 如果盖子尚未打开，则自动进样器将不会装入纸盘，并自动移动到下一个密封的样品盘中。
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2.发明授权System and method for heater control for evaporation of cryogenic fluids for cooling scientific instruments 失效用于冷却科学仪器的低温液体蒸发加热器控制系统和方法
公开(公告)号：US5973299A
公开(公告)日：1999-10-26
申请号：US927879
申请日：1997-09-11
申请人： John R. Reader, Jr.
发明人： John R. Reader, Jr.
CPC分类号： G05D23/1919
摘要： A heater controller for allocating heaters to cool a thermal chamber of a scientific instrument evaporates cryogenic liquid to produce a coolant gas. The gas is injected into a chamber to cool a sample disposal therein. The controller allocates low-capacity heaters in compliance with IEC guidelines to prevent problems generally associated with switching of large current loads, such as heaters. In one embodiment, heaters are activated so as to avoid jump discontinuities by effectively averaging the power delivered by the heaters. A second embodiment reduces complexity by essentially disregarding the problem of the jump discontinuity. A third embodiment groups the heaters according to a binary grouping scheme. The heater controller of the present invention can be used to control temperature according to a user supplied temperature profile.
摘要翻译： 用于分配加热器以冷却科学仪器的热室的加热器控制器蒸发低温液体以产生冷却剂气体。 将气体注入室以冷却其中的样品处理。 控制器根据IEC指南分配低容量加热器，以防止与大电流负载（如加热器）的切换大体相关的问题。 在一个实施例中，加热器被激活，以便通过有效平均由加热器传递的功率来避免跳跃不连续性。 第二实施例通过基本上忽略跳跃不连续性的问题来降低复杂性。 第三实施例根据二进制分组方案对加热器进行分组。 本发明的加热器控制器可用于根据用户提供的温度曲线控制温度。
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3.发明授权Dynamic and thermal mechanical analyzer having an optical encoder with diffraction grating and a linear permanent magnet motor 失效动态和热力机械分析仪具有带有衍射光栅的光学编码器和线性永磁电动机
公开(公告)号：US5710426A
公开(公告)日：1998-01-20
申请号：US609547
申请日：1996-03-01
IPC分类号： G01N25/16 , F27B5/16 , F27B17/02 , F27D1/00 , F27D9/00 , G01N3/00 , G01N3/06 , G01N3/18 , G01N19/00 , H01J3/14
CPC分类号： G01N3/18 , F27B17/02 , F27B5/16 , F27D1/0006 , G01N3/068 , F27B2005/164 , F27D1/0033 , F27D9/00 , G01N2203/0226
摘要： A dynamic and thermal mechanical analyzer incorporating a slide driven vertically in an air bearing guidance system with a large displacement capacity, very low friction and low mass. The position of the slide is measured by digitizing and interpolating two quadrature output signals generated by an optical encoder with very high spatial resolution and a long stroke. A force is applied to the slide using a linear permanent magnet motor with high force, high force linearity and low sensitivity to temperature variations. Position signals derived from the digitized and interpolated quadrature output signals are analyzed as a function of the applied force to calculate viscoelastic properties of a sample of material.
摘要翻译： 一种动态和热力机械分析仪，其包括在具有大排量容量，非常低摩擦和低质量的空气轴承引导系统中垂直驱动的滑块。 通过数字化和内插由具有非常高的空间分辨率和长行程的光学编码器产生的两个正交输出信号来测量幻灯片的位置。 使用具有高力，高力线性度和对温度变化的低灵敏度的线性永磁电动机将力施加到滑块。 根据所施加的力分析从数字化和内插正交输出信号得到的位置信号，以计算材料样品的粘弹性。
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公开(公告)号：US5842788A
公开(公告)日：1998-12-01
申请号：US962378
申请日：1997-10-31
CPC分类号： G01N25/482 , G01K17/00 , G01N25/4833 , G01N25/4866
摘要： A Differential Scanning Calorimeter (DSC) which has constant calorimetric sensitivity over its entire range of operating temperatures from -200.degree. C. to 540.degree. C. The DSC sensor consists of a pair of thin-film Resistance Temperature Detectors (RTDs) which are used to sense the temperature of a sample and the temperature difference between the sample and an inert reference. The RTDs are supplied with an excitation current which varies according to the temperature of the reference to achieve constant calorimetric sensitivity, independent of the operating temperature.
摘要翻译： 差示扫描量热计（DSC），其在-200℃至540℃的整个工作温度范围内具有恒定的测量灵敏度。DSC传感器由一对薄膜电阻温度检测器（RTD）组成，使用 以检测样品的温度和样品与惰性参比之间的温度差。 RTD提供的激励电流根据参考温度而变化，以实现恒定的量热灵敏度，与工作温度无关。
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公开(公告)号：US4899102A
公开(公告)日：1990-02-06
申请号：US337131
申请日：1989-04-12
CPC分类号： G01N27/226 , G01B7/14 , G01R27/2605
摘要： A parallel plate dielectric analyzer is disclosed including:(a) a distance sensor for accurately measuring the varying distance between the electrodes, such as a linear voltage differential transformer (LVDT), and means responsive to the distance sensor for positioning the electrodes;(b) a force transducer for measuring the applied force on the sample and means responsive to the force transducer to give a desired force by varying the electrode spacing;(c) disposable electrodes made using thick film technology composed of a ceramic substrate with a conductor adhered to its surface; and(d) a temperature sensor built into one of the electrodes such as a platinum ring adhered to the surface of one of the electrodes and means to measure the resistance across the platinum ring.
摘要翻译： 公开了一种平行平板介质分析仪，包括：（a）用于精确测量诸如线性电压差动变压器（LVDT）的电极之间的变化距离的距离传感器，以及响应于距离传感器定位电极的装置; （b）用于测量样品上施加的力的力传感器和响应于力传感器的装置，通过改变电极间距来产生所需的力; （c）使用厚膜技术制成的一次性电极，该陶瓷衬底具有粘附在其表面上的导体; 和（d）内置于一个电极中的温度传感器，例如附着在一个电极的表面上的铂环，以及测量铂环上的电阻的装置。
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公开(公告)号：US4855667A
公开(公告)日：1989-08-08
申请号：US206092
申请日：1988-06-13
CPC分类号： G01B7/14 , G01N27/226 , G01R27/2605
摘要： A parallel plate dielectric analyzer is disclosed including: a distance sensor for accurately measuring the varying distance between the electrodes, such as a linear voltage differential transformer (LVDT), and a motor responsive to the distance sensor for positioning the electrodes; a force transducer for measuring the applied force on the sample and where the motor responsive to the distance sensor is also responsive to the force transducer to give a desired force by varying the electrode spacing; disposable electrodes made using thick film technology composed of a ceramic substrate with a conductor adhered to its surface; and a temperature sensor built into one of the electrodes such as a platinum ring adhered to the surface of one of the electrodes and means to measure the resistance across the platinum ring.
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公开(公告)号：US07635092B2
公开(公告)日：2009-12-22
申请号：US11349338
申请日：2006-02-08
摘要： Embodiments of the present invention relate to apparatus, systems and methods for adding a humidity-controlled system to a thermogravimetric instrument. A humidity-controlled controlled chamber incorporates a housing, a humidifier, a sample chamber, a reference chamber, Peltier devices, humidity and temperature sensors, and gas transmission lines into a single unit. This single unit along with an electronic control unit and mass flow controllers provide a humidity-controlled system designed to control the atmosphere of TGA sample and reference chambers simultaneously. A system comprising an arm, motorized linear actuator an electric control unit, allows a humidity-controlled chamber to be automatically opened and closed, in turn, allowing reference and sample chambers to automatically be accessed.
摘要翻译： 本发明的实施例涉及将加湿控制系统添加到热重仪器的装置，系统和方法。 湿度控制的控制室将壳体，加湿器，样品室，参考室，珀耳帖装置，湿度和温度传感器以及气体传输线组合成单个单元。 该单一单元以及电子控制单元和质量流量控制器提供了一个湿度控制系统，旨在同时控制TGA样品和参考室的气氛。 包括臂，电动线性致动器和电控单元的系统允许自动打开和关闭湿度控制室，从而允许自动访问参考和样品室。
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公开(公告)号：US07048435B2
公开(公告)日：2006-05-23
申请号：US10910575
申请日：2004-08-04
摘要： Embodiments of the present invention relate to apparatus, systems and methods for adding a humidity-controlled system to a thermogravimetric instrument. A humidity-controlled chamber incorporates a housing, a humidifier, a sample chamber, a reference chamber, Peltier devices, humidity and temperature sensors, and gas transmission lines into a single unit. This single unit along with an electronic control unit and mass flow controllers provide a humidity-controlled system designed to control the atmosphere of TGA sample and reference chambers simultaneously. A system comprising an arm, motorized linear actuator and electronic control unit, allows a humidity-controlled chamber to be automatically opened and closed, in turn, allowing reference and sample chambers to automatically be accessed.
摘要翻译： 本发明的实施例涉及将加湿控制系统添加到热重仪器的装置，系统和方法。 湿度控制室将壳体，加湿器，样品室，参考室，珀耳帖装置，湿度和温度传感器以及气体传输线组合成单个单元。 该单一单元以及电子控制单元和质量流量控制器提供了一个湿度控制系统，旨在同时控制TGA样品和参考室的气氛。 包括臂，电动线性致动器和电子控制单元的系统允许自动打开和关闭湿度控制室，从而允许自动访问参考和样品室。
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9.发明授权Apparatus and method for analyzing dielectric properties using a single surface electrode and force monitoring and adjusting 失效使用单个表面电极分析介电特性的装置和方法以及力监测和调整
公开(公告)号：US5065106A
公开(公告)日：1991-11-12
申请号：US660169
申请日：1991-02-25
CPC分类号： G01B7/14 , G01N27/226 , G01R27/2605
摘要： A parallel plate or single surface dielectric analyzer is disclosed including: a distance sensor for accurately measuring the varying distance between the electrodes, such as a linear voltage differential transformer (LVDT), and apparatus responsive to the distance sensor for positioning the electrodes; a force transducer for measuring the applied force on the sample and apparatus responsive to the force transducer to give a desired force by varying the electrode spacing; disposable electrodes made using thick film technology composed of a ceramic substrate with a conductor adhered to its surface; and a temperature sensor built into one of the electrodes such as a platinum ring adhered to the surface of one of the electrodes and apparatus to measure the resistance across the platinum ring.
摘要翻译： 公开了一种平行板或单面介质分析仪，包括：用于精确测量诸如线性电压差动变压器（LVDT）的电极之间的变化距离的距离传感器以及响应于用于定位电极的距离传感器的装置; 力传感器，用于测量样品上的施加力并响应于力传感器设备，通过改变电极间距来产生期望的力; 使用厚膜技术制成的一次性电极，其中陶瓷基体与导体粘附在其表面上; 以及内置于一个电极中的温度传感器，例如附着在一个电极的表面上的铂环，以及用于测量穿过铂环的电阻的装置。
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公开(公告)号：US4816730A
公开(公告)日：1989-03-28
申请号：US944749
申请日：1986-12-22
申请人： Robert E. Wilhelm, Jr. , John R. Reader, Jr. , Kenneth W. Gormley, Sr. , Kendall B. Hendrick , Richard J. Celeste
发明人： Robert E. Wilhelm, Jr. , John R. Reader, Jr. , Kenneth W. Gormley, Sr. , Kendall B. Hendrick , Richard J. Celeste
CPC分类号： G05B19/40 , B25J9/161 , G05B2219/36395 , G05B2219/40006 , G05B2219/50042
摘要： An apparatus for handling and moving a plurality of objects such as containers each holding a sample to be analyzed by an analytical instrument contains the following:a. a robotic arm assembly capable of vertical, horizontal and rotational movement;b. gripper mechanism for holding objects attach to the arm of the assembly;c. stepper motors for driving the robotic arm assembly;d. a power source that drives the stepper motors electrically coupled to the motors;e. a sensing system with a feedback loop that monitors the movement of arm assembly, the objects being manipulated by the arm assembly and the force applied to the objects by the gripper mechanism;f. a computer electrically interfaced with the linear stepper motors, the power means and the sensing system with the feedback loop andg. a means for providing operating data input to the computer;operating data is provided to the computer for operation of the autosampler and the autosampler moves the object as directed.
摘要翻译： 用于处理和移动诸如容器的多个物体的装置，每个容器通过分析仪器保持待分析的样品包含以下内容：a。 能够进行垂直，水平和旋转运动的机器臂组件; b。 用于保持物体的夹持机构附着到组件的臂上; C。 用于驱动机器臂组件的步进电机; d。 电动机驱动步进电动机电耦合到电动机; e。 具有反馈回路的感测系统，其监测臂组件的运动，由臂组件操纵的物体和由夹持机构施加到物体的力; F。 与线性步进电机电连接的计算机，功率装置和具有反馈回路的传感系统和g。 用于向计算机提供输入的操作数据的装置; 操作数据被提供给计算机以用于自动进样器的操作，并且自动进样器按指示移动对象。
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