First Advisor

Pah I. Chen

Date of Publication

1977

Document Type

Thesis

Degree Name

Master of Science (M.S.) in Applied Science

Department

Applied Science

Language

English

Subjects

Hydraulic servomechanisms

DOI

10.15760/etd.2908

Physical Description

1 online resource (79 p.)

Abstract

This thesis reviews the design and analysis of a fluidic pneumatic position servo. Rolling diaphragm piston actuators are used for the system drive, and a hydrostatic gas journal bearing is used as the position sensor. The servo has a 1 inch range which is monitored using an electrical capacitive position transducer that was built as an integral part of the system.

Open-loop frequency response testing provides the basis for a mathematical model of the system.

The servo response is linear at frequencies up to 3 Hertz.

The frequency response appeared to be limited by the design of the gas bearing sensor, and it is felt that an order of magnitude improvement could result from an improved design.

Rights

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Comments

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Persistent Identifier

http://archives.pdx.edu/ds/psu/17464

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