Noise measurement method for luminaires with tubular fluorescent lamps

Raimo Eurasto

Research output: Book/ReportReport

Abstract

The aim of this project has been to propose a method to determine sound power level produced by luminaires with tubular fluorescent lamps. Because fluorescent lamps are very low-level noise sources the requirements for the measurement method concerning the measuring site, equipment and carrying out the measurements have to be defined more explicitly than has been done in present sound power level measuring methods. A new method complying with the above requirements is proposed. It is based on ISO 3741 and ISO 3742. In addition a simplified method for measuring only A-weighted sound power level is presented. The method has been tested by having four different laboratories carrying out measurements on two different luminaires with tubular fluorescent lamps. The results indicate that it is possible to make reliable and repeatable measurements using the proposed method if the background noise level can be kept low enough, and if the mounting conditions and the way of determining the sound power level are the same. In addition to the Round Robin measurements some preliminary measurements are accounted for. They include measurements to investigate how the mounting of the luminaire during the measurement affects its sound power level. It was also investigated if a simplified method could be used if only A-weighted sound power level is of interest.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages46
ISBN (Print)951-38-4799-3
Publication statusPublished - 1995
MoE publication typeNot Eligible

Publication series

SeriesVTT Publications
Number261
ISSN1235-0621

Fingerprint

noise measurement
luminaires
acoustics
mounting
requirements
background noise

Keywords

  • noise (sound)
  • measurement
  • measuring methods
  • acoustic measurement
  • luminaires
  • lamps
  • fluorescent lamps
  • standards
  • tests
  • sound level meters

Cite this

Eurasto, R. (1995). Noise measurement method for luminaires with tubular fluorescent lamps. Espoo: VTT Technical Research Centre of Finland. VTT Publications, No. 261
Eurasto, Raimo. / Noise measurement method for luminaires with tubular fluorescent lamps. Espoo : VTT Technical Research Centre of Finland, 1995. 46 p. (VTT Publications; No. 261).
@book{e567b86954b545f7b99464ae4993847d,
title = "Noise measurement method for luminaires with tubular fluorescent lamps",
abstract = "The aim of this project has been to propose a method to determine sound power level produced by luminaires with tubular fluorescent lamps. Because fluorescent lamps are very low-level noise sources the requirements for the measurement method concerning the measuring site, equipment and carrying out the measurements have to be defined more explicitly than has been done in present sound power level measuring methods. A new method complying with the above requirements is proposed. It is based on ISO 3741 and ISO 3742. In addition a simplified method for measuring only A-weighted sound power level is presented. The method has been tested by having four different laboratories carrying out measurements on two different luminaires with tubular fluorescent lamps. The results indicate that it is possible to make reliable and repeatable measurements using the proposed method if the background noise level can be kept low enough, and if the mounting conditions and the way of determining the sound power level are the same. In addition to the Round Robin measurements some preliminary measurements are accounted for. They include measurements to investigate how the mounting of the luminaire during the measurement affects its sound power level. It was also investigated if a simplified method could be used if only A-weighted sound power level is of interest.",
keywords = "noise (sound), measurement, measuring methods, acoustic measurement, luminaires, lamps, fluorescent lamps, standards, tests, sound level meters",
author = "Raimo Eurasto",
note = "Project code: R5SU01070",
year = "1995",
language = "English",
isbn = "951-38-4799-3",
series = "VTT Publications",
publisher = "VTT Technical Research Centre of Finland",
number = "261",
address = "Finland",

}

Eurasto, R 1995, Noise measurement method for luminaires with tubular fluorescent lamps. VTT Publications, no. 261, VTT Technical Research Centre of Finland, Espoo.

Noise measurement method for luminaires with tubular fluorescent lamps. / Eurasto, Raimo.

Espoo : VTT Technical Research Centre of Finland, 1995. 46 p. (VTT Publications; No. 261).

Research output: Book/ReportReport

TY - BOOK

T1 - Noise measurement method for luminaires with tubular fluorescent lamps

AU - Eurasto, Raimo

N1 - Project code: R5SU01070

PY - 1995

Y1 - 1995

N2 - The aim of this project has been to propose a method to determine sound power level produced by luminaires with tubular fluorescent lamps. Because fluorescent lamps are very low-level noise sources the requirements for the measurement method concerning the measuring site, equipment and carrying out the measurements have to be defined more explicitly than has been done in present sound power level measuring methods. A new method complying with the above requirements is proposed. It is based on ISO 3741 and ISO 3742. In addition a simplified method for measuring only A-weighted sound power level is presented. The method has been tested by having four different laboratories carrying out measurements on two different luminaires with tubular fluorescent lamps. The results indicate that it is possible to make reliable and repeatable measurements using the proposed method if the background noise level can be kept low enough, and if the mounting conditions and the way of determining the sound power level are the same. In addition to the Round Robin measurements some preliminary measurements are accounted for. They include measurements to investigate how the mounting of the luminaire during the measurement affects its sound power level. It was also investigated if a simplified method could be used if only A-weighted sound power level is of interest.

AB - The aim of this project has been to propose a method to determine sound power level produced by luminaires with tubular fluorescent lamps. Because fluorescent lamps are very low-level noise sources the requirements for the measurement method concerning the measuring site, equipment and carrying out the measurements have to be defined more explicitly than has been done in present sound power level measuring methods. A new method complying with the above requirements is proposed. It is based on ISO 3741 and ISO 3742. In addition a simplified method for measuring only A-weighted sound power level is presented. The method has been tested by having four different laboratories carrying out measurements on two different luminaires with tubular fluorescent lamps. The results indicate that it is possible to make reliable and repeatable measurements using the proposed method if the background noise level can be kept low enough, and if the mounting conditions and the way of determining the sound power level are the same. In addition to the Round Robin measurements some preliminary measurements are accounted for. They include measurements to investigate how the mounting of the luminaire during the measurement affects its sound power level. It was also investigated if a simplified method could be used if only A-weighted sound power level is of interest.

KW - noise (sound)

KW - measurement

KW - measuring methods

KW - acoustic measurement

KW - luminaires

KW - lamps

KW - fluorescent lamps

KW - standards

KW - tests

KW - sound level meters

M3 - Report

SN - 951-38-4799-3

T3 - VTT Publications

BT - Noise measurement method for luminaires with tubular fluorescent lamps

PB - VTT Technical Research Centre of Finland

CY - Espoo

ER -

Eurasto R. Noise measurement method for luminaires with tubular fluorescent lamps. Espoo: VTT Technical Research Centre of Finland, 1995. 46 p. (VTT Publications; No. 261).