ACOUSTIC CALIBRATION TESTS OF THE 219 PROJECTOR

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Authors
  1. Heard, G.
  2. Chapman, R.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
The report is intended to serve as an introduction to the 219 Moving Coil Projector and presents the measured response curves for the frequency range 50 - 200 Hz. Two different coil assemblies were tested and the measured response curves for both units are presented. Calibration of the projector's pressure sensor is also included to allow for accurate tow-depth deterination. The projector's harmonic distortion was measured and its effect on a broadband signal presented. Finally, typical towing characteristics (tow-angle, tow-depth, and cable scope) are summarized for a nominal tow-speed of 3.5 knots.
Keywords
Moving coil projectors;Low frequency moving coil projectors
Report Number
DREA-TM-96-219 — Technical Memorandum
Date of publication
15 Jun 1996
Number of Pages
15
DSTKIM No
96-02548
CANDIS No
499285
Format(s):
Document Image stored on Optical Disk;Hardcopy

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