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公开(公告)号：US5915283A
公开(公告)日：1999-06-22
申请号：US769540
申请日：1996-12-19
IPC分类号： G01N25/16 , F27B5/16 , F27B17/02 , F27D1/00 , F27D9/00 , G01N3/00 , G01N3/06 , G01N3/18 , G01N19/00 , G01N1/00
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 heat shield and insulation system comprised of multiple layers of metallic sheets separated by small protrusions or dimples in the metallic sheets. The multiple layers are formed by spirally winding a coil of the metallic sheet around the sample enclosure. The protrusions are formed by stamping the metallic sheets, preferably in a random patterns, such that one set of protrusions does not nest in the protrusions formed in a neighboring sheet. The spacing between the layers of metallic sheets is small, such that convection does not occur in the space between the layers. Accordingly, the heat transfer between the layers of the metallic sheets is primarily radiative or via thermal conduction through the gas. The two ends of the helically wound metallic sheet are insulated by multiple thin metallic disks.
摘要翻译： 隔热和绝缘系统由多层金属片组成，金属片由金属片中的小突起或凹坑分开。 通过将金属片的线圈螺旋地卷绕在样品外壳周围形成多个层。 通过冲压金属片，优选以无规图案形成突起，使得一组突起不嵌套在形成在相邻片中的突起中。 金属板之间的间隔很小，使得层之间的空间中不会发生对流。 因此，金属片层之间的热传递主要是辐射的或通过气体的热传导。 螺旋缠绕的金属片的两端由多个细金属盘绝缘。
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2.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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3.发明授权System and method for a thermogravimetric analyzer having improved dynamic weight baseline 有权具有改进的动态重量基线的热重分析仪的系统和方法公开(公告)号：US07416328B2
公开(公告)日：2008-08-26
申请号：US11317050
申请日：2005-12-27
申请人： Robert L. Danley , John W. Schaefer
发明人： Robert L. Danley , John W. Schaefer
CPC分类号： G01N5/04 , G01G19/52 , Y10S436/908
摘要： Systems and methods for minimizing extraneous forces and calculating corrected weights of samples based on buoyancy factors for a thermogravimetric analyzer (TGA). The TGA includes a balance chamber and a furnace configured to heat a sample. A null balance is provided in the balance chamber and is used to measure the sample weight change during heating. The furnace includes a cylinder open at the top to receive a sample. The bottom of the cylinder is closed except for a small hole that allows a thermocouple to pass through. An infrared heat source may be provided to heat the cylinder. The balance chamber can be thermally isolated from the furnace using an actively cooled plate and a system of heat shields disposed between the furnace and balance chamber. A thermocouple disk is further provided to limit gas flow in the furnace and increase reliability of sample weight measurements.
摘要翻译： 基于热重分析仪（TGA）的浮力因子，最小化外来力并计算样本的校正重量的系统和方法。 TGA包括配置成加热样品的平衡室和炉。 在平衡室中提供零平衡，用于在加热期间测量样品重量变化。 该炉包括在顶部开口以接收样品的圆筒。 气缸的底部是封闭的，除了允许热电偶通过的小孔。 可以提供红外热源来加热气缸。 平衡室可以使用主动冷却的板和设置在炉和平衡室之间的隔热系统与炉热隔离。 还提供热电偶盘以限制炉中的气体流动并增加样品重量测量的可靠性。
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4.发明授权System and method for a thermogravimetric analyzer having improved dynamic weight baseline 有权具有改进的动态重量基线的热重分析仪的系统和方法公开(公告)号：US07566167B2
公开(公告)日：2009-07-28
申请号：US12025279
申请日：2008-02-04
申请人： Robert L. Danley , John W. Schaefer
发明人： Robert L. Danley , John W. Schaefer
CPC分类号： G01N5/04 , G01G19/52 , Y10S436/908
摘要： Systems and methods for minimizing extraneous forces and calculating corrected weights of samples based on buoyancy factors for a thermogravimetric analyzer (TGA). The TGA includes a balance chamber and a furnace configured to heat a sample. A null balance is provided in the balance chamber and is used to measure the sample weight change during heating. The furnace includes a cylinder open at the top to receive a sample. The bottom of the cylinder is closed except for a small hole that allows a thermocouple to pass through. An infrared heat source may be provided to heat the cylinder. The balance chamber can be thermally isolated from the furnace using an actively cooled plate and a system of heat shields disposed between the furnace and balance chamber. A thermocouple disk is further provided to limit gas flow in the furnace and increase reliability of sample weight measurements.
摘要翻译： 基于热重分析仪（TGA）的浮力因子，最小化外来力并计算样本的校正重量的系统和方法。 TGA包括配置成加热样品的平衡室和炉。 在平衡室中提供零平衡，用于在加热期间测量样品重量变化。 该炉包括在顶部开口以接收样品的圆筒。 气缸的底部是封闭的，除了允许热电偶通过的小孔。 可以提供红外热源来加热气缸。 平衡室可以使用主动冷却的板和设置在炉和平衡室之间的隔热系统与炉热隔离。 还提供热电偶盘以限制炉中的气体流动并增加样品重量测量的可靠性。
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公开(公告)号：US5288147A
公开(公告)日：1994-02-22
申请号：US973416
申请日：1992-11-09
申请人： John W. Schaefer , Robert L. Danley
发明人： John W. Schaefer , Robert L. Danley
CPC分类号： G01N25/4866 , G01K17/00 , G01N25/482
摘要： A differential thermal analysis sensor consisting of two low-impedance differential thermopiles. Each thermopile consists of a series of thermocouples joined in series, with the measuring junctions of the thermocouples arranged around a uniform temperature measuring region, and the thermoelectric reference junctions of the thermocouples arranged around a uniform temperature thermoelectric reference region. The differential thermal analysis sensor can be used for single-sample heat flux differential thermal analysis measurements, dual-sample heat flux differential thermal analysis measurements, or power compensation differential thermal analysis measurements.
摘要翻译： 差分热分析传感器由两个低阻抗差分热电堆组成。 每个热电堆由一系列串联的热电偶组成，热电偶的测量接头布置在均匀的温度测量区域周围，热电偶的热电参考接合点布置在均匀温度的热电参考区域周围。 差分热分析传感器可用于单样本热通量差分热分析测量，双样本热通量差分热分析测量或功率补偿差分热分析测量。
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6.发明申请SYSTEM AND METHOD FOR A THERMOGRAVIMETRIC ANALYZER HAVING IMPROVED DYNAMIC WEIGHT BASELINE 有权具有改进动态重量基线的热分析仪的系统和方法公开(公告)号：US20080144694A1
公开(公告)日：2008-06-19
申请号：US12025279
申请日：2008-02-04
申请人： Robert L. Danley , John W. Schaefer
发明人： Robert L. Danley , John W. Schaefer
IPC分类号： G01N25/00
CPC分类号： G01N5/04 , G01G19/52 , Y10S436/908
摘要： Systems and methods for minimizing extraneous forces and calculating corrected weights of samples based on buoyancy factors for a thermogravimetric analyzer (TGA). The TGA includes a balance chamber and a furnace configured to heat a sample. A null balance is provided in the balance chamber and is used to measure the sample weight change during heating. The furnace includes a cylinder open at the top to receive a sample. The bottom of the cylinder is closed except for a small hole that allows a thermocouple to pass through. An infrared heat source may be provided to heat the cylinder. The balance chamber can be thermally isolated from the furnace using an actively cooled plate and a system of heat shields disposed between the furnace and balance chamber. A thermocouple disk is further provided to limit gas flow in the furnace and increase reliability of sample weight measurements.
摘要翻译： 基于热重分析仪（TGA）的浮力因子，最小化外来力并计算样本的校正重量的系统和方法。 TGA包括配置成加热样品的平衡室和炉。 在平衡室中提供零平衡，用于在加热期间测量样品重量变化。 该炉包括在顶部开口以接收样品的圆筒。 气缸的底部是封闭的，除了允许热电偶通过的小孔。 可以提供红外热源来加热气缸。 平衡室可以使用主动冷却的板和设置在炉和平衡室之间的隔热系统与炉热隔离。 还提供热电偶盘以限制炉中的气体流动并增加样品重量测量的可靠性。
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7.发明授权Thermal analysis assembly with distributed resistance and integral flange for mounting various cooling devices 有权具有分布电阻和整体法兰的热分析组件，用于安装各种冷却装置公开(公告)号：US06523998B1
公开(公告)日：2003-02-25
申请号：US09769320
申请日：2001-01-26
申请人： Robert L. Danley , John W. Schaefer
发明人： Robert L. Danley , John W. Schaefer
IPC分类号： G01N100
CPC分类号： G01N25/4826
摘要： An improved differential thermal analysis/differential scanning calorimetry (collectively, DSC) assembly with a furnace block assembly having a measurement chamber and a furnace heater. The measurement chamber has a sensor assembly for receiving a sample material and a reference material. The furnace block assembly is coupled to a generally cylindrical cooling flange through a distributed thermal resistor that allows a constrained heat flow between the furnace assembly and cooling flange. The thermal resistor can also withstand the mechanical stresses associated with the differential expansion and contraction of the furnace assembly and cooling flange without permanent deformation of the thermal resistor. The cooling flange can be coupled to various cooling devices, permitting operation of the overall DSC instrument in a variety of temperature regimes for a variety of applications.
摘要翻译： 改进的差示热分析/差示扫描量热法（统称为DSC）组件，其具有具有测量室和炉加热器的炉块组件。 测量室具有用于接收样品材料和参考材料的传感器组件。 炉膛组件通过分布式热电阻器连接到大致圆柱形的冷却法兰，其允许在炉组件和冷却法兰之间受到限制的热流。 热电阻器还可以承受与炉组件和冷却法兰的不同膨胀和收缩相关的机械应力，而不会导致热电阻器的永久变形。 冷却法兰可以连接到各种冷却装置，允许整个DSC仪器在各种温度条件下进行各种应用。
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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：US20130208759A1
公开(公告)日：2013-08-15
申请号：US13703043
申请日：2011-06-08
申请人： Robert L. Danley , Xiaoping Hu , Robert M. Krause
发明人： Robert L. Danley , Xiaoping Hu , Robert M. Krause
CPC分类号： G01K1/14 , G01K7/02 , G01K17/00 , G01K17/08 , G01N25/486 , Y10T29/49826
摘要： A sample holder for use in a scientific instrument requiring accurate and precise measurements of temperatures. The sample holder includes a ceramic sample cup diffusion bonded to a ceramic beam or to a ceramic adapter. A thermocouple is welded to the bottom of the sample cup.
摘要翻译： 用于需要精确和精确测量温度的科学仪器的样品架。 样品架包括陶瓷样品杯扩散结合到陶瓷束或陶瓷适配器。 将热电偶焊接到样品杯的底部。
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公开(公告)号：US20100278210A1
公开(公告)日：2010-11-04
申请号：US12766971
申请日：2010-04-26
申请人： Robert L. Danley , Xiaoping Hu
发明人： Robert L. Danley , Xiaoping Hu
摘要： A balance for a simultaneous differential thermal analysis instrument that combines gravimetric measurements with measurements that require propagation of electrical signals from the sample holder to an apparatus for recording the electrical signals. In one embodiment of the present invention, conductive cross-flexure pivots are used in a parallel guided balance to mechanically and electrically couple the components of the balance mechanism to the apparatus that records the electrical signals.
摘要翻译： 同时进行差分热分析仪器的平衡，其将重量测量与需要将电信号从样品架传播到用于记录电信号的装置的测量结合。 在本发明的一个实施例中，导电交叉挠曲枢轴以平行引导平衡使用，以将平衡机构的部件机械地和电气地耦合到记录电信号的装置。
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