NF ISO 17208-2

NF ISO 17208-2

May 2020
Standard Current

Underwater acoustics - Quantities and procedures for description and measurement of underwater sound from ships - Part 2 : determination of source levels from deep water measurements

This document specifies methods for calculating an equivalent monopole source level by converting radiated noise level values obtained in deep water according to ISO 17208-1. Procedures are also given for direct calculation from measurements made in deep water with specific hydrophone geometry. The source level calculated by the procedure in this document is that of an equivalent monopole source at a specified nominal source depth, and for broadside aspect only. The nominal source depth is intended to be reported with the equivalent monopole broadside source level value.

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Main informations

Collections

National standards and national normative documents

Publication date

May 2020

Number of pages

19 p.

Reference

NF ISO 17208-2

ICS Codes

17.140.30   Noise emitted by means of transport

Classification index

S31-051-2

Print number

1

International kinship

Sumary
Underwater acoustics - Quantities and procedures for description and measurement of underwater sound from ships - Part 2 : determination of source levels from deep water measurements

This document specifies methods for calculating an equivalent monopole source level by converting radiated noise level values obtained in deep water according to ISO 17208-1. Procedures are also given for direct calculation from measurements made in deep water with specific hydrophone geometry. The source level calculated by the procedure in this document is that of an equivalent monopole source at a specified nominal source depth, and for broadside aspect only. The nominal source depth is intended to be reported with the equivalent monopole broadside source level value.

Table of contents
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  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Conversion du niveau de source acoustique à partir du niveau de bruit rayonné mesuré par grands fonds
  • 5 Incertitude de mesure
  • 6 Exigences spéciales pour rapporter le niveau de source sonore par le travers
  • Annexe A Formules de correction du niveau de bruit rayonné d'un navire en considérant l'effet miroir de Lloyd
  • Annexe B Formules de correction du niveau de bruit rayonné d'un navire pour des mesures qui s'écartent de l'ISO 17208-1
  • Bibliographie
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