Abstract
The acoustic test facilities of the Underwater Sound Reference Division (USRD) of the Naval Undersea Warfare Center will be described. The USRD serves as the U.S. standardizing activity in the area of under-water acoustic measurements, as the National Institute of Standards and Technology does in other areas. It is the Navy’s primary activity for underwater acoustic calibration, test, evaluation, and reference measurements on transducers and related devices and materials. In this role the USRD maintains specialized measurement facilities with the capacity to simulate real-world ocean environments. It also maintains transducer standards to help ensure the accuracy of measurements made both at USRD and elsewhere. This presentation will describe the Acoustic Pressure Tank Facility, the Low-Facility Facility (with its three test vessels), the Acoustic Open Tank Facility, the Long-Line Hydrophone Calibrator, the Conical Shock Tube Facility, the Leesburg Facility, and the Transducer Standards Loan Program.
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