Year: 1994
Type: article
Abstract: The FRS4 pressure balance, or piston gauge, extends the range of this type of instrument below the usual minimum of 1,5 kPa. It gives 0,001 Pa resolution from 0,000 Pa to 1 kPa and 0,01 Pa to 3,2 kPa. This is achieved using a piston with an effective area of 100 cm 2 . A novel mechanism holds the piston centrally in the cylinder without friction and without the necessity of rotation. The piston assembly is mounted on an electronic balance giving direct continuous readout in pascals. Calibration is by direct measurement to calculate effective area and by standard certified weights to characterize the electronic balance. The uncertainty is ± 0,002 Pa ± 0,003% of reading from 0,000 Pa to 1 009,999 Pa, and ± 0,01 Pa ± 0,003% of reading from 1 010,00 Pa to 3 200,00 Pa.
Source: Metrologia
Author: C G Rendle
Language: English
Subfield: Statistics, Probability and Uncertainty
Field: Decision Sciences
Domain: Social Sciences
Open Access status: bronze
OpenAlex ID: W1967060563