The design of a preamplifier for use with a piezoelectric transducer is generally approached from the point of view that an extremely high input impedance is required to obtain low frequency response. However, piezoelectric transducers are essentially charge generators and this fact may be utilized in designing preamplifiers to be...
Methods for mathematically modeling digital networks and
for constructing a digital network simulator are presented in this
paper. Two simulator programs have been written in FORTRAN
for the CDC 3300 Computer system: one for analyzing the behavior
of a typical combinational network, and one for analyzing the
behavior of a...
This thesis is an investigation of the characteristics of transistor-coupled logic using both theoretic and experimental methods. The steady state and transient behavior of the transistor are first investigated, especially as applied to the common emitter configuration. A number of references giving further information are cited.
Next, the characteristics of...
The worst case analysis of rounding error of eleven numerical
quadrature formulas on a computer with floating-point arithmetic,
base b, and t digit mantissa is calculated. These results are
applied to five different integrands using the digital computer CDC
3300 located at Oregon State University. Central processing unit
computing time,...
The emergence of the three-input majority gate as a practical element for logical design has demanded a useful method of design using these elements. In order to facilitate the use of this gate, a digital computer program is presented to implement the design procedure. Utilizing the truth table of a...
This thesis describes the control circuitry for a
telemetry system developed to report hydrologic information
from remote locations. The multiparameter,
on-call system operates on a single frequency. Each
remote station responds to a predetermined number of
pulses from the master station. Data is transmitted by
pulse- duration modulation.
In the...
Direct digital control is becoming quite common in the control
of industrial processes. However, due to the relatively high accuracy
of both analog and conventional digital systems for controlling the
speed of a dc motor, there has been a reluctance to try DDC for
this purpose. This thesis describes a...
Airfoil flow simulation tests were carried out in a 20-inch
diameter double layer circular electrolytic tank. Results of the
tests indicate that the tank very closely approximates ideal conditions.
The double layer circular electrolytic tank is shown to
generate a very large rectangular tank. Formulas were derived to
show that...
A high speed adaptive signal processing concept and several high
speed adaptive logic circuit elements are presented.
The adaptive signal processing system operates in a "goal" oriented
mode; the system tries to optimize its characteristics to
achieve a given goal in spite of unforeseen variations in the inputs,
the system,...