Open AccessA Digital System for the Acquisition and Processing of Geoacoustic Data
Author(s) -
Herrin Eugene,
McDonald John A.
Publication year - 1971
Publication title -
geophysical journal of the royal astronomical society
Language(s) - English
Resource type - Journals
eISSN - 1365-246X
pISSN - 0016-8009
DOI - 10.1111/j.1365-246x.1971.tb03379.x
Subject(s) - magnetic tape , ibm , ranging , computer science , data acquisition , reading (process) , range (aeronautics) , digital data , sampling (signal processing) , computer hardware , binary number , operating system , real time computing , computer graphics (images) , database , digital recording , telecommunications , engineering , data transmission , arithmetic , materials science , mathematics , aerospace engineering , detector , political science , law , nanotechnology
Summary In the autumn of 1969 we accepted delivery of three TC‐200 digital data acquisition systems from Teledyne Geotech. These systems can record up to 16 channels of long period, digital data with a specified sampling rate (currently 1 per second) on magnetic tape in an ‘IBM compatible’ format. Identifying headers are automatically written at the beginning of each file on tape and Universal Time is written each minute. The actual dynamic range of the receding system is about 66 dB, but an operating range of 120 dB is automatically assured by the use of binary, gain‐ranging amplifiers. The systems have been tested and are now operating satisfactorily at Blacknest Laboratory near Reading in England, at the University of Alaska and at a field site east of Dallas, Texas.