2aEA5. Flow-induced self-noise on a spherical acoustic velocity sensor.

Session: Tuesday Morning, June 17

Author: Gerald C. Lauchle
Location: Penn State Univ., Graduate Program in Acoust., P.O. Box 30, State College, PA 16804
Author: Andrew R. Jones
Location: General Electric Co., Louisville, KY 40225


An experimental effort to characterize the broadband flow-induced self-noise on a spherically shaped acoustic velocity sensor operating underwater is described. The transducer is a small geophone encased in a near-neutrally buoyant sphere, 76.2 mm in diameter. The research described in this paper quantifies the flow-induced self-noise signal as a function of the sphere diameter Reynolds number (2.15

ASA 133rd meeting - Penn State, June 1997