Bollettino di Geofisica Teorica e Applicata
OGS Website BGTA homepage
About the Journal
Contacts
To Authors
On-line Submission
Subscriptions
Forthcoming
On-line First
The Historical First Issue
Issues

2020 Vol. 61
Suppl. 1 / 1 / 2 / 3 / 4

2019 Vol. 60
1 / 2 / 3 / 4 / Suppl. 1 / Suppl. 2 / Suppl. 3

2018 Vol. 59
1 / 2 / 3 / 4 / Suppl. 1

2017 Vol. 58
1 / 2 / 3 / 4

2016 Vol. 57
1 / 2 / 3 / 4 / Suppl. 1

2015 Vol. 56
1 / 2 / 3 / 4

2014 Vol. 55
1 / 2 / 3 / 4

2013 Vol. 54
1 / 2 / 3 / 4 / Suppl. 1 / Suppl. 2

2012 Vol. 53
1 / 2 / 3 / 4

2011 Vol. 52
1 / 2 / 3 / 4 / Suppl. 1

2010 Vol. 51
1 / 2-3 / 4 / Suppl. 1

2009 Vol. 50
1 / 2 / 3 / 4

2008 Vol. 49
1 / 2 / 3-4 / Suppl. 1

2007 Vol. 48
1 / 2 / 3 / 4

2006 Vol. 47
1-2 / 3 / 4

2005 Vol. 46
1 / 2-3 / 4

2004 Vol. 45
1-2 / 3 / 4 / Suppl. 1 / Suppl. 2

2003 Vol. 44
1 / 2 / 3-4

2002 Vol. 43
1-2 / 3-4

2001 Vol. 42
1-2 / 3-4

2000 Vol. 41
1 / 2 / 3-4

1999 Vol. 40
1 / 2 / 3-4

1998 Vol. 39
1 / 2 / 3 / 4

1997 Vol. 38
1-2 / 3-4

1995 Vol. 37
145 / 146 / 147 / 148 / Suppl. 1

1994 Vol. 36
141-144 / Suppl. 1

1993 Vol. 35
137-138 / 139 / 140

1992 Vol. 34
133 / 134-135 / 136

1991 Vol. 33
129 / 130-131 / 132

 
 

Vol. 61, n.4, December 2020
pp. 589-606

Design and implementation of a marine seismic source by electrical discharge

A. Giordano, L. De Luca and P. Giordano

Received: 23 October 2019; accepted: 6 April 2020

Abstract

Acoustic sources based on electrical discharge, commonly called sparker sources, are employed in surveys for high-resolution marine stratigraphy. In this work, a new seismic sparker-type transducer has been designed, built and tested to obtain specific characteristics: low cost, small size (50x50x15 cm3), high resolving power, perfect symmetry of the acoustic beam emitted, and high directivity. This source can, thus, also be used in shallow water, to delineate the first sedimentary layers. First, an analysis of the determined experimental radiation pattern, signal to noise, and wavelet shape is presented. The radiation pattern is subsequently compared to the theoretical one. Lastly, comparative tests with traditional sparker sources and with the boomer source showed the validity of the performance of the new source.

Download PDF complete



back to table of contents