干體爐校準(zhǔn)方法及不確定度評(píng)定

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【摘要】干體爐的工作溫度范圍一般在-80～1300℃。干體爐具有無油煙、體積小、方便攜帶、能耗低等優(yōu)點(diǎn)，且升溫至預(yù)設(shè)溫度比恒溫槽快，作為標(biāo)準(zhǔn)熱源被廣泛應(yīng)用于溫度傳感器的現(xiàn)場(chǎng)校準(zhǔn)。本文簡(jiǎn)要介紹了干體爐的原理，著重研究了其校準(zhǔn)方法，并對(duì)其溫度偏差進(jìn)行了不確定度評(píng)定。

【關(guān)鍵詞】干體爐；不確定度分析；溫度偏差

【DOI編碼】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

對(duì)工業(yè)現(xiàn)場(chǎng)的溫度變送器、工業(yè)鉑熱電阻、熱電偶等溫度傳感器進(jìn)行校準(zhǔn)需要用到相適應(yīng)的恒溫源。（剩余3134字）