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Mining Publication: Analysis of Nonstandard Noise Dosimeter Microphone Positions
Keywords: Acoustics Dosimeters Noise Sound level meters
Original creation date: March 2008
Authors: DC Byrne, ER Reeves
Peer Reviewed Journal Article - March 2008
Download PDF Document (0.60 MB)
NIOSHTIC2 Number: 20033388
J Occup Environ Hyg 2008 Mar; 5(3):197-209
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.
Image of publication Analysis of Nonstandard Noise Dosimeter Microphone PositionsPeer Reviewed Journal Article - March 2008
Download PDF Document (0.60 MB)
NIOSHTIC2 Number: 20033388
J Occup Environ Hyg 2008 Mar; 5(3):197-209
See Also
A Comparison of Beamforming Processing Techniques for Low Frequency Noise Source Identification in Mining Equipment
Determination of Sound Exposures (DOSES): Software Manual and Implementation Guide
Development of the NIOSH Determination of Sound Exposures (DOSES) Mining Noise Exposure Management Software
DOSES - Determination of Sound Exposures - 1.1
Engineering Noise Controls for Longwall Mining Systems
Heavy Construction Equipment Noise Study Using Dosimetry and Time-Motion Studies
Heavy Construction Equipment Noise Study Using Dosimetry and Time-Motion Studies
Noise Source Identification on a Horizontal Vibrating Screen
Passive Fiber Optic System for Locating, Tracking, and Communicating with Personnel in Coal Mines
Results of Noise Measurements from Underground Testing of a Roof Bolting Machine Duty Cycle
Page last reviewed: September 21, 2012
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
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