کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1691179 | 1011300 | 2008 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Leak calibration by comparison with reference standard leaks
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
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چکیده انگلیسی
A study of the calibration of leaks by comparison with reference standard leaks calibrated at a National Metrology Laboratory is presented. The simplicity and efficiency of the method make it suitable for calibrations of leaks carried out at the industrial level. A commercial leak tester equipped with a mass spectrometer tuned to helium is used for the comparison. The main origins of uncertainties and their contributions to the expanded uncertainty are presented. In particular, discussion is devoted to the long-term stability, shift, or depletion of the reference standard leaks and the resulting impact on the expanded uncertainty. Results of application of the procedure for calibration of a leak of similar metrological characteristics to the reference standard leaks are also presented.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vacuum - Volume 82, Issue 11, 19 June 2008, Pages 1151-1156
Journal: Vacuum - Volume 82, Issue 11, 19 June 2008, Pages 1151-1156
نویسندگان
J.M. Hidalgo, J.L. de Segovia,