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    • 3. 发明授权
    • Differential scanning calorimeter
    • 差示扫描量热仪
    • US06641300B1
    • 2003-11-04
    • US10058025
    • 2002-01-29
    • Andrew LaceyMichael Reading
    • Andrew LaceyMichael Reading
    • G01K1700
    • G01K19/00G01K17/00G01N25/4806G01N25/4833
    • A method for calibrating thermal resistance and thermal capacitance parameters characterizing a DSC cell, and then calculating the heat flow to the sample based upon the results of the calibration. The method is applied in a conventional heat flux calorimeter, to obtain thermal analysis data having improved baseline and resolution. A first embodiment is based upon a model of a calorimeter in which there is no cross-talk between the sample and reference sides of a DSC cell. The thermal resistance and thermal capacitance parameters are calculated by carrying out a sequential series of calibration measurements with an empty DSC cell, materials on the reference side and materials on both the sample and reference sides. Another embodiment takes the existence of cross-talk between the sample and reference sides of the calorimeter into account.
    • 用于校准表征DSC单元的热电阻和热电容参数,然后基于校准结果计算到样品的热流的方法。 该方法应用于常规热通量热计中,以获得具有改进的基线和分辨率的热分析数据。 第一实施例基于在DSC单元的样品和参考侧之间没有串扰的量热计的模型。 通过使用空的DSC电池,参考侧的材料和样品和参考侧的材料进行一系列校准测量来计算热电阻和热电容参数。 另一个实施例考虑到量热计的样品和参考侧之间的串扰存在。
    • 7. 发明授权
    • Method and apparatus for AC Differential thermal analysis
    • 交流差动热分析方法与装置
    • US5439291A
    • 1995-08-08
    • US171656
    • 1993-12-22
    • Michael Reading
    • Michael Reading
    • G01N25/48G01N25/00
    • G01N25/4833B82Y15/00G01N25/18G01N25/4866
    • The present invention is a modulated differential thermal analysis technique for determining the composition, phase, structure, identification, or other properties of a material that undergoes a transition as function of temperature or other driving variable. As applied to differential scanning calorimetric analysis (DSC), the preferred embodiment comprises (1) heating a sample of the material with a linear temperature ramp that is modulated with a sinusoidal heating rate oscillation; (2) simultaneously heating a reference at the same linear temperature ramp; (3) measuring the differential temperature of the sample and reference; and (4) deconvoluting the resultant heat flow signal into rapidly and non-rapidly reversible components.
    • 本发明是用于确定作为温度或其他驱动变量的函数的经历转变的材料的组成,相位,结构,识别或其它性质的调制差分热分析技术。 如应用于差示扫描量热分析(DSC),优选实施方案包括(1)用正弦加热速率振荡调制的线性温度斜坡加热材料样品; (2)在相同的线性温度斜坡同时加热参考; (3)测量样品和参考的温差; 和(4)将所得热流信号解卷积成快速且非快速可逆的分量。