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Precision frequency control of a magnetic storage drum Fink, Hermann Josef

Abstract

In the development of a pulse position modulation analogue computer the requirement arose to control accurately the frequency of a magnetic drum. A control system was designed which compares the drum frequency to a 1000 cps tuning fork oscillator. Any deviation in phase produces a corresponding change in torque on the drum drive motor which then corrects the phase error. As part of the over-all project a precision power supply was developed. The requirements were met by modifying existing designs.

Item Metadata

Title
Precision frequency control of a magnetic storage drum
Creator
Fink, Hermann Josef
Publisher
University of British Columbia
Date Issued
1956
Description
In the development of a pulse position modulation analogue computer the requirement arose to control accurately the frequency of a magnetic drum. A control system was designed which compares the drum frequency to a 1000 cps tuning fork oscillator. Any deviation in phase produces a corresponding change in torque on the drum drive motor which then corrects the phase error. As part of the over-all project a precision power supply was developed. The requirements were met by modifying existing designs.
Genre
Thesis/Dissertation
Type
Text
Language
eng
Date Available
2012-01-27
Provider
Vancouver : University of British Columbia Library
Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
DOI
10.14288/1.0105043
URI
http://hdl.handle.net/2429/40348
Degree (Theses)
Master of Applied Science - MASc
Program (Theses)
Electrical and Computer Engineering
Affiliation
Applied Science, Faculty of; Electrical Engineering, Department of
Degree Grantor
University of British Columbia
Campus
UBCV
Scholarly Level
Graduate
Aggregated Source Repository
DSpace

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Rights

For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.