TY - JOUR
TI - Performance of three hydrophone flow shields in a tidal channel
AU - Cotter, E
AU - McVey, J
AU - Weicht, L
AU - Haxel, J
T2 - JASA Express Letters
AB - Pseudosound caused by turbulent pressure fluctuations in fluid flow past a hydrophone, referred to as flow noise, can mask propagating sounds of interest. Flow shields can mitigate flow noise by reducing non-acoustic pressure fluctuations sensed by a hydrophone. We evaluate the performance of three hydrophone flow shields (two nylon fabrics and an oil-filled enclosure) in a tidal channel with peak current speed of 1.3 m s−1. All three flow shields reduced flow noise without attenuating propagating sound below 20 kHz. The oil-filled enclosure performed best, reducing flow noise by over 30 dB at frequencies below 40 Hz.
DA - 2024/01//
PY - 2024
VL - 4
IS - 1
UR - https://pubs.aip.org/asa/jel/article/4/1/016001/2932985/Performance-of-three-hydrophone-flow-shields-in-a?utm_campaign=Triton&utm_medium=email&_hsmi=291452798&_hsenc=p2ANqtz-8xjXlUyjh_kZfPhh_ys8XcLYJhX0u6T8IpT3q_8GCmE-G5vqJauvbEJlDcIDD0xAYQVZBjp69VmYIBzI3PnZI0FX5x7Q&utm_content=291452798&utm_source=hs_email
DO - https://doi.org/10.1121/10.0024333
LA - English
KW - Field Data
KW - Instrumentation
ER -