A Free-Standing Laboratory Pressure System
Pender, MJ
Department of Civil and Environmental Engineering, University of Auckland, Auckland, New Zealand

(Received 15 August 2004; accepted 19 November 2004)

Abstract
This technical note describes a laboratory pressure system that is free standing, portable, and may be battery-powered so that it can be used in field locations if required. It has been found to be a satisfactory replacement for a laboratory pressure system based on constant bleed air pressure regulators. It has the facility for manual control of the set pressure from an onboard power supply system or remote control via d-c signal supplied from a signal generator or the digital to analog output from a data acquisition system.

Keywords:
laboratory pressure system, oedometer testing, permeability testing, pressure system, servo controlled pressure regulator , soil, triaxial testing

Paper ID: GTJ12703
DOI: 10.1520/GTJ12703

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Author Pender, MJ Affiliation Department of Civil and Environmental Engineering, University of Auckland, Auckland, New Zealand Author Pender MJ Title A Free-Standing Laboratory Pressure System Symposium , Committee on