Quick
Search: 		  
advanced search
 GSW Home   GeoRef Home   My GSW Alerts   Contact GSW   About GSW   Journals List   Help 
Bulletin of the Seismological Society of America Email Content Delivery
JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
Bulletin of the Seismological Society of America; February 1975; v. 65; no. 1; p. 227-233
© 1975 Seismological Society of America
This Article
Right arrow Full Text (PDF)
Right arrow References
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by BLAKELY, R. F.
Right arrow Articles by MARTIN, H. J.
Right arrow Search for Related Content
GeoRef
Right arrow GeoRef Citation

The measurement of seismographic records using a computer-controlled film scanner

R. F. BLAKELY, C. R. ELLIS and H. J. MARTIN

GEOLOGY DEPARTMENT INDIANA UNIVERSITY, BLOOMINGTON, INDIANA 47401
PHYSICS DEPARTMENT INDIANA UNIVERSITY, BLOOMINGTON, INDIANA 47401

Abstract

A semi-automatic system to digitize seismographic records is described. Photographic images of the records are digitized using a cathode-ray-tube film scanner that is controlled by a computer. An operator, interacting with the computer through a display console, supervises the overall data collection and can intervene in the search for traces and in the digitization of the data whenever he feels that it is necessary.






JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2009 by Seismological Society of America