The Swedish Decence Research Agency, FOI is one of Europe’s leading research institutes for applied research in the areas of defence and security. FOI is a government agency in Sweden where the financing of most projects is assignment-based. The FOI under water technology department consist of approximately 50 staff members the majority being full time scientists. In parallel with theoretical studies there is a vast experience in measurement technology and instrumentation covering areas such as acoustics, particle motion and electro-magnetics. 


Peter Sigray started his academic research in experimental atomic and molecular physics, Stockholm University. In 1996 he changed focus and started at the FOI where he has since then been working with ocean electro-magnetic and acoustic phenomena measuring and developing methodologies and instruments. Peter Sigray has simultaneously been working with ocean electro-magnetic studies in co-operation with the Department of Meteorology at Stockholm University (MISU) where he has a professor-ship.

Per Davidsson is a researcher at FOI since 1997, He received a PhD, Physics from Chalmers University of Technology 2003. His academic work was in experimental low temperature physics. At FOI Per Davidsson has worked with both acoustic and electromagnetic sensor systems. 2004 – 2006 He was head of the department for applied marine research. 2008 – 2011 Davidsson was technical manager for the wind tunnel facilities in Bromma (former FFA).

Markus Linné has a PhD in physics from Stockholm University (2009) where his academic work was done in the field of experimental atomic physics. Markus has been working at FOI since 2010. His research interest covers areas such as design of measurement systems, instrumentation (with calibrations) and field trials for systems testing and measurement campaigns. He has experience from working with acoustic and electromagnetic sensor systems.