DocumentCode
3023656
Title
A meteor infrasound recording system
Author
Watson, M.D. ; McIntosh, B.A. ; ReVelle, D.O.
Author_Institution
Herzberg Institute of Astrophysics, Ottawa, Canada
Volume
1
fYear
1976
fDate
27851
Firstpage
786
Lastpage
789
Abstract
The National Research Council of Canada has established an infrasonic microphone array near Saskatoon, Saskatchewan, to detect acoustic waves generated by large meteors during their entry into the atmosphere. The system consists of four ceramic microphones modified for an extended low-frequency response and fitted with noise-reducing pipes, and involves the sending of FM signals over telephone lines to a local telemetry station, followed by digital data transmission to a recording centre. A microprocessor is used for data-handling and magnetic tape control. The system has a peak sensitivity at 0.1 Hz, a full-scale range ± 15 microbar, and a resolution of 0.125 microbar.
Keywords
Acoustic arrays; Acoustic noise; Acoustic signal detection; Acoustic waves; Atmosphere; Ceramics; Councils; Low-frequency noise; Magnetic noise; Microphone arrays;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '76.
Type
conf
DOI
10.1109/ICASSP.1976.1170020
Filename
1170020
Link To Document