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View Paper |
Session Topic: 2C, Pressure Session |
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Paper Title: New Breakthroughs in Digital Piston Gauge Technology |
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Date & Time: MONDAY, August 5, 2002 |
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2:30pm - 4:00pm
PARALLEL SESSIONS - SESSION 2 |
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Speaker: Frederic Poirier
DH Budenberg SA |
Email: dhonline@desgranges.com |
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A new digital piston gauge technology covers absolute and gauge pressure ranges from a few Pa up to 25 MPa. Based on the dead-weight tester principle, the instrument uses a mass comparator to measure the force resulting from the pressure applied to a rotating piston/cylinder assembly. A special design of the measuring head allows an easy and quick change of the pressure range. The instrument has on-board environment monitoring facilities and is self-calibrating for long-term measurement stability. It offers highest level uncertainties to ± (0.5 Pa + 1.2 10-5 of reading) with resolution to 0.1 Pa. This system can be totally automated by addition of an automatic pressure controller and calibration software for full automatic data acquisition. Used as reference or working standard this pressure standard is dedicated to the calibration of portable calibrators, pressure controllers, barometers or industrial level pressure balances. |
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