TY - GEN
T1 - Variability of SCUBA diver's acoustic emission
AU - Donskoy, Dimitri M.
AU - Sedunov, Nikolay A.
AU - Sedunov, Alexander N.
AU - Tsionskiy, Michael A.
PY - 2008
Y1 - 2008
N2 - Knowledge of the variability of the acoustic emission characteristics from SCUBA divers is critically important for designing and operating a passive acoustic SCUBA characterization system. Using modeling and experimental measurements in a controlled environment, we identified key source factors influencing the variability of the acoustic emission parameters including Source Band Level (SBL), Spectral Power Density (SPD), and breathing periodicity or emission modulation frequency. The key factors are: equipment, specifically, the design of the first stage (high pressure) regulator and its service life; diver's experience and training; and, finally, operating conditions of the equipment and diver, i.e. tank air pressure and the diver's motion activity. We found, for example, that the SBL could vary as much as 16 dB depending on the equipment used and up to 15 dB depending on the diver's intensity of motion.
AB - Knowledge of the variability of the acoustic emission characteristics from SCUBA divers is critically important for designing and operating a passive acoustic SCUBA characterization system. Using modeling and experimental measurements in a controlled environment, we identified key source factors influencing the variability of the acoustic emission parameters including Source Band Level (SBL), Spectral Power Density (SPD), and breathing periodicity or emission modulation frequency. The key factors are: equipment, specifically, the design of the first stage (high pressure) regulator and its service life; diver's experience and training; and, finally, operating conditions of the equipment and diver, i.e. tank air pressure and the diver's motion activity. We found, for example, that the SBL could vary as much as 16 dB depending on the equipment used and up to 15 dB depending on the diver's intensity of motion.
KW - Acoustic emission
KW - Breathing periodicity
KW - Divers
KW - SCUBA
KW - Source level
KW - Variability
UR - http://www.scopus.com/inward/record.url?scp=44949190682&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=44949190682&partnerID=8YFLogxK
U2 - 10.1117/12.783500
DO - 10.1117/12.783500
M3 - Conference contribution
AN - SCOPUS:44949190682
SN - 9780819471369
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Optics and Photonics in Global Homeland Security IV
T2 - Optics and Photonics in Global Homeland Security IV
Y2 - 17 March 2008 through 20 March 2008
ER -