Development of a Speech Amplifier System for Use With the Navy A4 Oxygen Breathing Apparatus and a Proposed Firefighting Instructor's Breathing Device.

Abstract

Navy damage control personnel (especially firefighters) are often required to work in areas of possible or actual oxygen deficiency and areas where the concentration of smoke or other toxic gases is high. In these situations, the investigator or firefighter normally wears an Oxygen Breathing Apparatus (OBA) for respiratory protection. Presently, the Naval Ship Engineering Center is considering the use of two new breathing devices. Neither breathing device was originally equipped with an amplified speech communication system. In order to make possible good face-to-face communication in the high noise environments anticipated, it was deemed desirable that some of these devices be provided with suitable voice amplifiers. (Author)

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1976
Accession Number
ADA025184

Entities

People

  • Thomas A. Giordano

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Amplifiers
  • Biological Sciences
  • Breathing Apparatus
  • Communication Systems
  • Deficiencies
  • Engineering
  • Engineers
  • Environment
  • Firefighters
  • Respiration
  • Safety Engineering

Readers

  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Materials Science
  • STEM Education