V.M. Borovkov Al’manac of Modern Metrology № 1 (17) 2019, pages 109–115 Piston pairs with an upper limit of reproducible pressures of 1.6 GPa, designed to work with glycerin glycol or silicone fluids are considered. The barometric dependences of the piston fall speed and effective clearance are given. Key words: cylinder channel profile, clearance, effective … Continue reading High pressure piston gauges: mathematical modeling and realization of piston pairs with back pressure