摘 要:干井式溫度校驗(yàn)器被廣泛應(yīng)用于企業(yè)現(xiàn)場(chǎng)和計(jì)量實(shí)驗(yàn)室,為了評(píng)估其性能,就需要計(jì)量機(jī)構(gòu)對(duì)干井式溫度校驗(yàn)器進(jìn)行校準(zhǔn)。但目前我國(guó)還沒有制訂其校準(zhǔn)的相關(guān)標(biāo)準(zhǔn)和規(guī)范?,F(xiàn)根據(jù)干井式溫度校驗(yàn)器的性能特點(diǎn)、測(cè)溫原理和使用范圍,參考國(guó)際上采用的校準(zhǔn)指南對(duì)干井式溫度校驗(yàn)器的校準(zhǔn)方法進(jìn)行了研究,主要內(nèi)容包括溫度偏差、溫度穩(wěn)定性、溫度均勻性、散熱效應(yīng)和負(fù)載影響,并通過校準(zhǔn)實(shí)例說明該校準(zhǔn)方法是切實(shí)可行的。
關(guān)鍵詞:干井式溫度校驗(yàn)器;校準(zhǔn);校準(zhǔn)方法;溫度偏差;溫度穩(wěn)定性;溫度均勻性
中圖分類號(hào):TH811 文獻(xiàn)標(biāo)識(shí)碼:A 文章編號(hào):1672-4984(2007)04-0044-03
Study on calibration method of dry-well temperature calibrator
ZHAO Jing
(National Insistute of Measurement and Test Technology,Chengdu,610021,China)
Abstract: Dry-well temperature calibrator is extensive used on the scene of enterprise and the metrological laboratory, In order to evaluate its performance, metrological organization needs to carry on the calibration to dry-well temperature calibrator. However at present, our country has not worked out a relevant standards and norm to calibration of dry-well temperature calibrator. The paper based on the function characteristic, temperature measuring principle and range of dry-well temperature calibrator and adooted reference of the international guide in the research of calibration method. The main content included temperature deviation, temperature Stability, temperature Uniformity, stem conduction and loading effect. Experiment shows that the calibration method is practical and feasible
Key words: Dry-well temperature calibrator; Calibration; Calibration method; Temperature deviation; Temperature Stability; Temperature uniformity