Measuring Day-Night Noise Levels (DNL) Using the Metrosonics db-310 Sound Level Analyzer (Dosimeter)

reportActive / Technical Report | Accession Number: ADA215757 | Open PDF

Abstract:

The Metrosonics db-310 Dosimeter does not provide automatic calculation of DNLs for environmental noise surveys. Previous environmental noise surveys using the db-310 Dosimeter required DNL values to be calculated manually from the paper printout of sound levels. Manual calculations proved to be both laborious and monotonous worse, one missed key stroke would require a restart of this whole calculation. In addition, the quality of the printouts are very poor if reproduction is required. The manual method of DNL calculating made long term environmental noise monitoring tedious and labor intensive with many opportunities for error. This report presents a program listing, setup requirements, procedures and operating instructions for DNL calculations using the Metrosonics db-310 Noise Dosimeter, a Z-248 or Z-184 Microcomputer, ENABLE software, and a BASIC program. Procedures and operating instructions describe 1 programming the Metrosonics db-310 Dosimeter parameters for environmental noise measurements, 2 down loading its data to a Zenith Z-248 or Z-184 Computer using ENABLE, and 3 running a BASIC program which calculates the DNL and provides a hard copy of the results. rrh

Author(s):
Ali, Ali Y.
Author Organization(s):
AIR FORCE OCCUPATIONAL AND ENVIRONMENTAL HEALTH LAB BROOKS AFB TX
Descriptive Note:
Final rept. 1 Jul-12 Sep 1989,
Supplementary Note:
DOI: 10.21236/ADA215757
Pagination:
0038

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AFOEHL-89-103EI0111JNA
Monitor Series:
AFOEHL
 Subject Terms
Joint Capability Areas:
JCA_6_Net Centric; JCA_6.1.1_Wired Transmission; JCA_6.1_Information Transport; JCA_4.7.2_Installation Services; JCA_4.7_Base and Installations Support; JCA_1_Force Support; JCA_1.2_Force Preparation; JCA_5_Command and Control; JCA_6.2.1_Information Sharing; JCA_6.2.2_Computing Services; JCA_6.4.1_Secure Information Exchange; JCA_1.2.3_Educating; JCA_5.3_Planning
Communities of Interest:
Biomedical
Descriptor(s):
*NOISE, COMPUTER PRINTOUTS, COMPUTATIONS, ENVIRONMENTS, MONITORING, QUALITY, SURVEYS, SOUND, LEVEL(QUANTITY), DAY, MANUAL OPERATION, NIGHT, AUTOMATIC, HARD COPY, DOSIMETERS, COMPUTER PROGRAMS, MEASUREMENT
Field(s)/Group(s):
Acoustics
Report Date:
1989 Sep 01