DocumentCode :
1600353
Title :
Measurement of electromagnetic fields produced by underwater equipment
Author :
Zachar, Hans G. ; Gibbon, George J.
Author_Institution :
Sch. of Electr. & Inf. Eng., Univ. of the Witwatersrand, Johannesburg, South Africa
fYear :
2002
fDate :
6/24/1905 12:00:00 AM
Firstpage :
149
Lastpage :
153
Abstract :
The elasmobranchii (sharks, rays and skates) possess sensory organs called the Ampullae of Lorentzini which enables them to detect electromagnetic (EM) fields at intensities as low as 1 μV/m at frequencies between 0.1 and 16 Hz. This paper describes the laboratory based measurement system used to measure the EM fields produced by commercial and recreational electronic scuba diving equipment. Using these measurements and software modelling, predictions can be made concerning the distance at which the elasmobranchii would be able to sense the presence of such equipment or the intensity of the fields at any given distance from the source.
Keywords :
bioelectric phenomena; biological techniques; electric field measurement; electromagnetic interference; electronic equipment testing; laboratory techniques; marine systems; test equipment; zoology; 0.1 to 16 Hz; Ampullae of Lorentzini; elasmobranchii; electromagnetic fields; electromagnetic intensities; electronic scuba diving equipment; laboratory based measurement system; rays; sensory organs; sharks; skates; underwater equipment; Africa; Electromagnetic fields; Electromagnetic measurements; Frequency measurement; Laboratories; Marine animals; Oceans; Probes; Sea measurements; Underwater equipment;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Underwater Technology, 2002. Proceedings of the 2002 International Symposium on
Print_ISBN :
0-7803-7397-9
Type :
conf
DOI :
10.1109/UT.2002.1002418
Filename :
1002418
Link To Document :
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