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Tzero技术是如何提升DSC性能：简化冷却试验的温度校准
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| Because of thermal lag between DSC sample and temperature control sensors, most DSC’s require calibration at the heating rate to be used. Alternatively, calibration at multiple rates is required to correct for the heating rate dependence of thermal lag. Without this calibration there is considerable error in the temperature data in going from one heating rate to another. This problem is especially troublesome when performing a cooling experiment due to the thermal lag being in the opposite direct as that of heating doubling its effect. This problem is solved with a new DSC sensor employing TzeroTM technology. With the Q Series‰ DSC system an additional thermocouple on the DSC sensor allows complete calibration of the DSC cell and compensation for all thermal lags, including those caused by the encapsulated sample. The use of a liquid crystal sample is described to demonstrate that the calibration is independent of heating or cooling rate, even when using a non-ideal hermetic sample encapsulation. |
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2017-03-01 11:05:51, 315.26 K
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