Accession Number : ADD011339

Title :   Apparatus and Method for Determining the Phase Sensitivity of Hydrophones.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Van Buren,A L

Report Date : 05 Jun 1984

Pagination or Media Count : 14

Abstract : A method and apparatus for determining the phase angle of the sensitivity of a hydrophone H to be calibrated. The method comprises positioning in a straight line a transducer T that can be used both as a hydrophone and a projector; determining the phase angles of a set of voltages and currents; and finding the phase angle of the sensitivity from the former phase angles. The apparatus includes a framework for positioning P, H and T in a straight line, an electronic system for monitoring the voltages and currents, and a programmed computer for performing a single-point DFT. (Author)

Descriptors :   *Patents, *Phase detectors, *Hydrophones, *Transducers, Electronic equipment, Phase, Computer programming, Voltage, Linear systems, Angles, Computers, Sensitivity

Subject Categories : Electrical and Electronic Equipment
      Test Facilities, Equipment and Methods
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE