Since the Industrial Revolution, automated systems have increasingly become a part of everyday life. Automated systems range in scale and scope from simple assists to complete robotic replacements. Inexpensive integrated circuits, sensors and microprocessors have allowed automated systems to become smaller, cheaper and more prevalent. Identifying appropriate opportunities for automation,...
In an attempt to satisfy an existing need for a small gas
sample pump, a proposed design was analyzed and determined to be
feasible and a design for a prototype model was produced. The
design is of a chemically inert, leak-proof, unlubricated, sliding-vane-
type pump. It is designed to pump...
A design style is presented for a self-synchronized,
multiple input change, asynchronous state machine which
processes input changes at a speed limited only by the
required machine behavior and implementation technology.
This state machine will operate at this ultimate speed
because of a new asynchronous delay element with unequal
rising...
Published August 1954. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
The electric motor has for an number of
years occupied an important position in the operation
of wood-working machinery, of moderate capacity, for
example the planing mills, sash and door factories
and many of the other similar wood working shops.
However its adoption in the more trying field of saw...
Brushless Doubly-Fed Machines have potential benefits in variable speed generation and adjustable speed drive applications by combining a robust machine structure with a reduced power converter rating. While recent work has demonstrated feasibility, steady-state performance has not been optimized. The nature of doubly-fed operation causes rotor currents of varying, relatively...
Design and preliminarily characterization of two thermally-actuated pumps is presented
in this thesis. The unique feature of both pumps is the presence of periodic asymmetrical
structures on the channel walls. Two heat transfer effects are used with surface
asymmetry to generate forces that drive the fluid in a preferential direction...
This thesis presents the development of a supervisory controller for a pre-commercial
Brushless Doubly-Fed Machine (BDFM) drive system. In addition,
characterizations of new diecast rotors for the BDFM are presented. Using the
characterization results from the new rotors, a control scheme was developed to allow a
BDFM to be packaged...