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Автор Martti Heinonen
Дата выпуска 1999-12-01
dc.description A new method for comparing dew-point generators was developed at the Centre for Metrology and Accreditation. In this method, the generators participating in a comparison are compared with a transportable saturator unit using a dew-point comparator. The method was tested by constructing a test apparatus and by comparing it with the MIKES primary dew-point generator several times in the dew-point temperature range from -40 to +75 °C. The expanded uncertainty (k = 2) of the apparatus was estimated to be between 0.05 and 0.07 °C and the difference between the comparator system and the generator is well within these limits. In particular, all of the results obtained in the range below 0 °C are within ±0.03 °C. It is concluded that a new type of a transfer standard with characteristics most suitable for dew-point comparisons can be developed on the basis of the principles presented in this paper.
Формат application.pdf
Издатель Institute of Physics Publishing
Название A new comparison method for dew-point generators
Тип paper
DOI 10.1088/0957-0233/10/12/319
Electronic ISSN 1361-6501
Print ISSN 0957-0233
Журнал Measurement Science and Technology
Том 10
Первая страница 1261
Последняя страница 1265
Аффилиация Martti Heinonen; Centre for Metrology and Accreditation, PO Box 239, FIN-00181 Helsinki, Finland
Выпуск 12

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