Title :
Calibration system for high gas pressure measuring devices
Author :
Kobata, Tokihiko ; Kojima, Momoko ; Kajikawa, Hiroaki ; Kimura, Sakae
Author_Institution :
Nat. Metrol. Inst. of Japan, AIST, Tsukuba, Japan
Abstract :
The National Metrology Institute of Japan, AIST has developed a high gas pressure standard and a calibration system for pressure measuring devices. The maximum pressure is currently 20 MPa and will be extended to 100 MPa. The calibration system is mainly composed of a liquid-lubricated gas pressure balance, an automatic weight handler, a gas pressure controller, and a gas booster. The effective area of the piston-cylinder assembly installed in the liquid-lubricated gas pressure balance is determined beforehand from the comparison against the hydraulic pressure standard, which is maintained by the hydraulic pressure balances. In this article, the details of the high gas pressure standard and the configuration of the calibration system developed are described. The method for calibrating a pressure measuring device using the system and its result are also presented.
Keywords :
calibration; pressure measurement; AIST; National Metrology Institute of Japan; automatic weight handler; calibration system; gas booster; gas pressure controller; high gas pressure measuring devices; high gas pressure standard; liquid-lubricated gas pressure balance; piston-cylinder assembly; Assembly; Atmospheric measurements; Calibration; Pistons; Pressure measurement; Temperature measurement; Uncertainty; calibration; high gas pressure; pressure balance; pressure standard; pressure transducer;
Conference_Titel :
SICE Annual Conference (SICE), 2011 Proceedings of
Conference_Location :
Tokyo
Print_ISBN :
978-1-4577-0714-8
