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首页> 外文期刊>Review of Scientific Instruments >Time‐dependent and thermal history effects in low temperature glass–ceramic capacitance thermometers
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Time‐dependent and thermal history effects in low temperature glass–ceramic capacitance thermometers

机译:低温玻璃陶瓷电容温度计中随时间和热历史的影响

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摘要

The low temperature (4.2–45 K) calibrations of two commercial capacitance thermometers show drifts toward equilibrium values both when held at 4.2 K immediately after cooling from 77 K, and when subsequently warmed to higher temperatures. Irreproducibilities of up to 0.2 K in the equilibrium calibrations were traced to differences in the thermal history of the sensors.
机译:两个商用电容式温度计的低温校准(4.2–45 K)显示,从77 K冷却后立即保持在4.2 K时,以及随后升温至更高温度时,均朝平衡值漂移。平衡校准中高达0.2 K的不可重复性可追溯到传感器热历史的差异。

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