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TitleThe accurate generation of small gauge pressures using twin pressure balances
Publication TypeJournal Article
Year of Publication1987
AuthorsSutton, C.M.
JournalMetrologia
Volume23
Issue4
Pagination187 - 195
Date Published1987
ISSN00261394 (ISSN)
KeywordsPISTON ROTATION, PRESSURE MEASUREMENT, PRESSURE TRANSDUCERS - Calibration, SMALL GAUGE PRESSURES, TWIN PRESSURE BALANCES
AbstractThe accurate generation of gauge pressures in the range from below 0.5 Pa to 2000 Pa using twin gas-operated pressure balances is described. Each gauge pressure is generated by changing the mass on one of the pressure balances while they are both operating. The performance of the twin-pressure-balance instrument was assessed by calibrating differential pressure transducers. The short-term stability of the average difference in pressure between the two pressure balances was about 0.5 mPa (standard deviation), or 5 parts in 10 9 of the line pressure, and the overall uncertainty (99% confidence limits) in the generated gauge pressure pe was ± (0.9 mPa + 2 × 10-5 pe).
URLhttp://www.scopus.com/inward/record.url?eid=2-s2.0-0023330734&partnerID=40&md5=e17f696cd5b7a1f033dae6d68825af0d
DOI10.1088/0026-1394/23/4/003

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