DESIGN OF A NEW SERIES OF PRESSURE BALANCE IN LIQUID MEDIUM

Marcello Caravaggio, Gianfranco Molinar Min Beciet, Paolo De Maria

Abstract

The design and development of a series of pressure balances, operating in liquid media up to 120 MPa, have been started during a recent collaboration between the Italian company SCANDURA & FEM and the I.N.Ri.M. (Italian National Research Institute of Metrology) in Italy.<br />The details of the project design for these pressure balances are here presented. Two different pressure balance’s lines have been develop: one, the RedLine, only mechanical, the other one, the BlueLine, with an on board electronic compensation system. The main chosen strategy has been decided in such a way to produce a compact pressure balance easy to move, but at the same time equipped with all the measuring sensors needed to compensate the errors due to the main influence quantities (for the BlueLine model).<br />The main metrological characteristics of some pistoncylinder units were experimentally analysed and some interesting results are here presented. To better characterise these pressure balances several investigations, by using the FEM Analysis, have been done in cooperation with the University of Cassino.

Keywords

pressure balance, piston-cylinder assembly, FEM Analysis

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IMEKO-WC-2009-TC16-213.pdf

DOI

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IMEKO TC

TC16 - Pressure and Vacuum Measurement

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