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公开(公告)号：US08087821B2
公开(公告)日：2012-01-03
申请号：US12129355
申请日：2008-05-29
申请人： Robert L. Danley
发明人： Robert L. Danley
CPC分类号： G01N25/4833 , G01K17/00
摘要： A heat flux differential scanning calorimeter (DSC) is disclosed. The DSC can be configured with a highly conductive sample assembly enclosure. The enclosure can include a high emissivity coating. In one embodiment, the enclosure extends along a longitudinal direction that is about the same as that of an infrared lamp assembly used to heat the enclosure, thereby increasing the efficiency of heating the sample enclosure. In one embodiment, a gas-filled thermal resistor is used to couple the measurement assembly to a heat sink, such that samples can be rapidly heated and rapidly cooled.
摘要翻译： 公开了一种热通量差示扫描量热计（DSC）。 DSC可以配置高度导电的样品组件外壳。 外壳可以包括高发射率涂层。 在一个实施例中，外壳沿着与用于加热外壳的红外灯组件大致相同的纵向方向延伸，从而提高加热样品外壳的效率。 在一个实施例中，气体填充的热电阻器用于将测量组件耦合到散热器，使得样品可以被快速加热并快速冷却。
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公开(公告)号：US20100278209A1
公开(公告)日：2010-11-04
申请号：US12766964
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 invention, conductive flat planar strip flexure pivots are used in a single-meter movement 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，导电平面平板条挠曲枢轴用于单米运动平衡中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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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：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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公开(公告)号：US07470057B2
公开(公告)日：2008-12-30
申请号：US11843225
申请日：2007-08-22
申请人： Robert L. Danley
发明人： Robert L. Danley
摘要： A sensor for a heat flux differential scanning calorimeter in which the differential temperatures are measured between locations external to the regions of heat exchange between the sensor and sample containers. The measured differential temperatures respond to the magnitude of the heat flow rate between the sensor and the sample and reference containers and are rendered insensitive to variations in the magnitude and distribution of thermal contact resistance between the sensor and the containers.
摘要翻译： 用于热通量差示扫描量热计的传感器，其中在传感器和样品容器之间的热交换区域之外的位置之间测量差温。 测量的差分温度响应传感器和样品和参考容器之间的热流速的大小，并且对传感器和容器之间的热接触电阻的大小和分布的变化不敏感。
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公开(公告)号：US06431747B1
公开(公告)日：2002-08-13
申请号：US09643870
申请日：2000-08-23
申请人： Robert L. Danley
发明人： Robert L. Danley
IPC分类号： G01K120
CPC分类号： G01K17/00 , G01K17/04 , G01N25/4833 , G01N25/4866
摘要： A sensor for a heat flux differential scanning calorimeter in which one absolute temperature measurement and two differential temperature measurements are used. The sensor is calibrated and used based on a four-term model heat flow equation. The calibration is carried out in two experiments which are used to calculate the sensor thermal resistance for the sample and reference positions, respectively, and the sensor heat capacity for the sample and reference positions, respectively. Differential scanning calorimeters using this sensor exhibit improved resolution, improved baseline performance and improved dynamic response.
摘要翻译： 用于热通量差示扫描量热计的传感器，其中使用一个绝对温度测量和两个差分温度测量。 传感器基于四项模型热流方程校准和使用。 在两个实验中进行校准，分别用于计算样品和参考位置的传感器热阻，以及样品和参考位置的传感器热容。 使用该传感器的差示扫描量热仪表现出改进的分辨率，改进的基线性能和改善的动态响应。
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公开(公告)号：US06428203B1
公开(公告)日：2002-08-06
申请号：US09643869
申请日：2000-08-23
申请人： Robert L. Danley
发明人： Robert L. Danley
IPC分类号： G01N100
CPC分类号： G01K17/04 , G01K17/00 , G01N25/4833 , G01N25/4866
摘要： A power compensation differential scanning calorimeter that uses one absolute temperature measurement, two differential temperature measurements, a differential power measurement, and a five-term heat flow equation to measure the sample heat flow. The calorimeter is calibrated by running two sequential calibration experiments. In a preferred embodiment, the first calibration experiment uses empty sample and reference pans, and the second calibration experiment uses sapphire specimens in the sample and reference holders. In an alternate embodiment, sapphire calibration specimens are used in both the first and second calibration experiments.
摘要翻译： 一种功率补偿差示扫描量热仪，其使用一个绝对温度测量，两个差分温度测量，差分功率测量和五项热流方程来测量样品热流。 通过运行两个连续校准实验校准量热计。 在优选实施例中，第一校准实验使用空样品和参考平板，第二校准实验使用样品和参考夹中的蓝宝石样品。 在替代实施例中，在第一和第二校准实验中都使用蓝宝石校准样本。
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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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公开(公告)号：US5509733A
公开(公告)日：1996-04-23
申请号：US171609
申请日：1993-12-21
申请人： Robert L. Danley
发明人： Robert L. Danley
CPC分类号： G01N25/4826
摘要： The present invention is an infrared-heated differential thermal analyzing instrument. The instrument uses an actively cooled heat sink, and a heat flow restricting element connecting the heat sink to a differential thermal analysis sensor. An IR heater directs IR radiation onto the lateral surfaces of the heat sink and the heat flow restricting element. These lateral surfaces are polished and coated with a high IR reflectance coating, so that heat absorption is minimized. The IR heater preferably uses either elliptical or parabolic mirrors to focus the IR radiation onto the heat sink and the heat flow restricting element. A second embodiment of the invention uses two heat sinks, and two heat flow restricting elements, with one heat sink and one heat flow restricting element mounted on either side of the differential analysis thermal sensor.
摘要翻译： 本发明是红外线加热差示热分析仪器。 仪器使用主动冷却的散热器和将散热器连接到差分热分析传感器的热流限制元件。 IR加热器将IR辐射引导到散热器和热流限制元件的侧表面上。 这些侧表面被抛光并涂覆有高红外反射涂层，使得吸热最小化。 IR加热器优选地使用椭圆形或抛物面镜将IR辐射聚焦到散热片和热流限制元件上。 本发明的第二实施例使用两个散热器和两个热流限制元件，其中一个散热器和一个热流限制元件安装在差分分析热传感器的两侧。
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公开(公告)号：US08926171B2
公开(公告)日：2015-01-06
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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