干体炉校准方法及不确定度评定

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【摘要】干体炉的工作温度范围一般在-80～1300℃。干体炉具有无油烟、体积小、方便携带、能耗低等优点，且升温至预设温度比恒温槽快，作为标准热源被广泛应用于温度传感器的现场校准。本文简要介绍了干体炉的原理，着重研究了其校准方法，并对其温度偏差进行了不确定度评定。

【关键词】干体炉；不确定度分析；温度偏差

【DOI编码】10.3969/j.issn.1674-4977.2024.01.074

Calibration Method and Uncertainty Evaluation of Dry Body Furnace

LI Pengcheng

（Liaoning Institute of Measurement， Shenyang 110004， China）

Abstract： The working temperature range of a dry furnace is generally between -80℃and 1300℃. Dry body furnaces have the advantages of no oil fumes， small size， convenient portability， and low energy consumption. They also heat up to a preset temperature faster than a constant temperature bath， making them widely used as standard heat sources for on-site calibration of temperature sensors. This article briefly introduces the principle of dry body furnaces， focuses on studying their calibration methods， and evaluates the uncertainty of their temperature deviation.

Keywords： dry body furnace； uncertainty analysis； temperature deviation

对工业现场的温度变送器、工业铂热电阻、热电偶等温度传感器进行校准需要用到相适应的恒温源。（剩余3134字）