Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Analysis of nonstandard noise dosimeter microphone positions.

Authors
Byrne-DC; Reeves-ER
Source
J Occup Environ Hyg 2008 Mar; 5(3):197-209
NIOSHTIC No.
20033388
Abstract
This study was conducted as part of a project involving the evaluation of a new type of noise exposure monitoring paradigm. Laboratory tests were conducted to assess how "nonstandard" dosimeter microphones and microphone positions measured noise levels under different acoustical conditions (i.e., diffuse field and direct field). The data presented in this article reflect measurement differences due to microphone position and mounting/supporting structure only and are not an evaluation of any particular complete dosimeter system. To varying degrees, the results obtained with the dosimeter microphones used in this study differed from the reference results obtained in the unperturbed (subject absent) sound field with a precision (suitable for use in an ANSI Type 1 sound level meter) 1/2-inch (12.7 mm) measurement microphone. Effects of dosimeter microphone placement in a diffuse field were found to be minor for most of the test microphones/locations, while direct field microphone placement effects were found to be quite large depending on the microphone position and supporting structure, sound source location, and noise spectrum.
Keywords
Dosimetry; Noise; Noise-exposure; Noise-levels; Noise-measurement; Monitors
Contact
David C. Byrne, Robert A. Taft Laboratories, NIOSH, 4676 Columbia Parkway, Mail Stop C-27, Cincinnati, OH 45226
CODEN
JOEHA2
Publication Date
20080301
Document Type
Journal Article
Email Address
dbyrne@cdc.gov
Fiscal Year
2008
NTIS Accession No.
NTIS Price
Issue of Publication
3
ISSN
1545-9624
NIOSH Division
DART; PRL
Source Name
Journal of Occupational and Environmental Hygiene
State
OH; AL
TOP