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Results on the effective area of the FPG-type digital piston manometer of MIKES

2005; IOP Publishing; Volume: 42; Issue: 6 Linguagem: Inglês

10.1088/0026-1394/42/6/s03

1681-7575

Markku Rantanen, Sari Semenoja,

Sensor Technology and Measurement Systems

The Centre for Metrology and Accreditation (MIKES) has been using a new type of a digital piston manometer (force-balanced piston gauge (FPG)) since 2001. The instrument was developed by DH Instruments Inc., USA. Determination of the effective area was an essential part in validating the FPG in MIKES. One of the big advantages of the FPG is the fact that a conventional pressure balance can be used to determine the effective area. However, the measurement is not straightforward due to the lubrication gas flow in the FPG.