Developing Typical Pressure Measurement Uncertainty Specifications for Pressure Transfer Standard Products from Low Absolute to 280 MPa

摘要

Calculating uncertainties in pressure for a transfer standard can be considered relatively straight forward. Doing the same for a population of pressure transfer standards with state of the art precision presents an abundance of challenges previously not experienced by this author. This paper examines the efforts to develop these specifications for Q-RPTs (resonating quartz reference pressure transducer) that are installed in a number of types of pressure calibration devices. The uncertainties are identified, broken down, analyzed, and built back up to create a system of specifications that cover a wide range of applications and also meet a pre-determined reliability. Finally the specifications are used to define a calibration system in hope of meeting requirements set forth by ANSI/NCSLI Z540-3.