DRDC Atlantic Research Centre atmospheric acoustics measurement suite – Source directivity and recording system calibrations

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Authors
  1. Tollefsen, C.D.S.
Corporate Authors
Defence Research and Development Canada, Atlantic Research Centre, Halifax NS (CAN)
Abstract
As part of the Audibility of Naval Gunfire Exercises on Land (ANGEL) experiment, Defence Research and Development Canada’s (DRDC’s) Atlantic Research Centre acquired a suite of air acoustics measurement equipment that included microphones, recording systems, and a propane cannon that was used as an impulsive sound source. An overview of the acoustic experiments that comprised the ANGEL project is presented, along with a detailed summary of important instrument settings used for every experiment. Detailed measurements were made of the propane cannon source peak level and directivity. The recording channels were calibrated for each microphone and channel pairing that was possible with the equipment. Descriptions and explanations of some terminology are provided in order to assist in interpreting field notes. Tables of values are provided for all source directivity and microphone calibrations to allow for future use of the equipment.

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Keywords
ANGEL;atmospheric acoustics;microphone;calibration
Report Number
DRDC-RDDC-2015-R304 — Scientific Report
Date of publication
01 Dec 2015
Number of Pages
70
DSTKIM No
CA042023
CANDIS No
803321
Format(s):
Electronic Document(PDF)

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