Real-Ear Sound Attenuation Characteristics of the Sierra P/N 791 AVC Helmet

Abstract

The DH-132 was tested and approved as a standard helmet for the protection of the U. S. Army tank crewmen. In addition to this helmet, the Sierra P/N 791 AVC was submitted for test and evaluation for consideration as a second standard helmet. The real-ear attenuation test results show that the Sierra helmet significantly failed the attenuation specifications and therefore did not meet the attenuation requirements established by The Surgeon General. The Sierra helmet in its present configuration is not acceptable as a hearing protector for U. S. Army tank personnel.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1973
Accession Number
AD0762565

Entities

People

  • Alan L. Croshaw
  • Ben T. Mozo
  • Gordon A. Schott
  • Robert T. Camp Jr.
  • Rohinton N. Guzdar
  • Timothy M. Hinkel

Organizations

  • United States Army Aeromedical Research Lab

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Acoustics
  • Amplifiers
  • Armored Vehicles
  • Attenuation
  • Attenuators
  • Biomedical Research
  • Frequency
  • Instrumentation
  • Loudspeakers
  • Measurement
  • Oscillators
  • Power Amplifiers
  • Preventive Medicine
  • Sound Pressure
  • Specifications
  • Standards
  • Test And Evaluation

Readers

  • Auditory Neuroscience/Auditory Physiology.
  • Hydraulic Engineering.
  • Software Engineering