Author/Authors :
Felizardo، نويسنده , , M. and Martins، نويسنده , , R.C. and Ramos، نويسنده , , A.R. and Morlat، نويسنده , , T. and Girard، نويسنده , , T.A. and Giuliani، نويسنده , , F. and Marques، نويسنده , , J.G.، نويسنده ,
Abstract :
Previous acoustic instrumentation of the SIMPLE detector has relied on the use of a low-cost piezoelectric transducer, which was generally unable to provide discrimination between true bubble nucleation events and ambiental sources of acoustic noise. The use of a high-quality electret microphone and adaptive electronics is shown to provide this capacity through reduced noise levels and distinct fast Fourier transforms of the event registration.
Keywords :
Dark matter , instrumentation , Signal discrimination , Superheated liquids
