ISO 5305:2024
(Main)Noise measurements for UAS (unmanned aircraft systems)
Noise measurements for UAS (unmanned aircraft systems)
This document specifies methods for recording the time history of instantaneous sound pressure in several positions around rotor powered unmanned aircraft systems (UAS) with a maximum take-off mass (MTOM) of less than 150 kg in accordance with ISO 21895[9]. The UAS can be either electrically powered or fuel-powered. It is not applicable to the tilt-rotor or tilt-wing UAS. It does not account for the UAS noise certification or regulation This document can also be applied to measure the sound pressure from a UAS with either multiple rotors or a single rotor. This document specifies: a) recommendations and requirements for three different test facilities for the noise measurements of various categories of multirotor-powered UAS: — requirements and recommendations of UAS noise tests in anechoic chambers (Clause 7); — requirements and recommendations of UAS noise tests in anechoic wind tunnels (Clause 8); — requirements and recommendations of UAS noise tests in outdoor environments (Clause 9); b) requirements and recommendations for the configuration of noise measurement for multirotor-powered UAS in hover, vertical take-off and landing, and horizontal cruise; c) recommendations for the test configuration and procedures to minimize the influence of meteorological effects.
Mesures de bruit pour les UAS (aéronefs sans pilote)
General Information
Buy Standard
Standards Content (Sample)
FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 5305
ISO/TC 20/SC 16
Noise measurements for UAS
Secretariat: ANSI
(unmanned aircraft systems)
Voting begins on:
2023-10-06
Voting terminates on:
2023-12-01
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/FDIS 5305:2023(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. © ISO 2023
---------------------- Page: 1 ----------------------
ISO/FDIS 5305:2023(E)
FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 5305
ISO/TC 20/SC 16
Noise measurements for UAS
Secretariat: ANSI
(unmanned aircraft systems)
Voting begins on:
Voting terminates on:
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
RECIPIENTS OF THIS DRAFT ARE INVITED TO
ISO copyright office
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
CP 401 • Ch. de Blandonnet 8
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
CH-1214 Vernier, Geneva
DOCUMENTATION.
Phone: +41 22 749 01 11
IN ADDITION TO THEIR EVALUATION AS
Reference number
Email: copyright@iso.org
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO
ISO/FDIS 5305:2023(E)
Website: www.iso.org
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
Published in Switzerland
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN
DARDS TO WHICH REFERENCE MAY BE MADE IN
ii
© ISO 2023 – All rights reserved
NATIONAL REGULATIONS. © ISO 2023
---------------------- Page: 2 ----------------------
ISO/FDIS 5305:2023(E)
Contents Page
Foreword .v
Introduction . vi
1 Scope . 1
2 Normative reference documents .1
3 Terms and definitions . 1
4 Abbreviated terms . 5
5 Instrumentation . 5
5.1 General . 5
5.2 Calibration . 5
6 General requirements . 6
6.1 General . 6
6.2 Requirements of acoustic far-field condition . 6
6.3 Requirements of position of UAS to reduce aerodynamic flow effect .
...
ISO/DISFDIS 5305:2022(E)
ISO/TC 20/SC 16/JWG 7
Secretariat: ANSI
Date: 2023-04-0309-21
Noise measurements for UAS (unmanned aircraft systems)
FDIS stage
---------------------- Page: 1 ----------------------
ISO/DISFDIS 5305:20222023(E)
© ISO 20222023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this
publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical,
including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can
be requested from either ISO at the address below or ISO'sISO’s member body in the country of the requester.
ISO copyright office
Case postale 56 • CP 401 • Ch. de Blandonnet 8
CH-12111214 Vernier, Geneva 20
Tel.Phone: + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail: copyright@iso.org
WebWebsite: www.iso.org
Published in Switzerland.
ii
ii © ISO 2022 – All rights reserved
© ISO 2023 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/DISFDIS 5305:20222023(E)
Contents
Foreword . viii
Introduction . ix
1 Scope . 1
2 Normative reference documents . 1
3 Terms and definitions . 2
4 Abbreviated terms . 6
5 Instrumentation. 6
5.1 General . 6
5.2 Calibration . 6
6 General requirements . 7
6.1 General . 7
6.2 Requirements of acoustic far-field condition . 7
6.3 Requirements of position of UAS to reduce aerodynamic flow effect . 8
6.4 Requirements of position control . 8
6.4.1 General . 8
6.4.2 Requirement of position accuracy . 8
6.4.3 Requirement of velocity accuracy . 8
6.5 Requirements of background noise . 9
7 Anechoic chamber tests. 9
7.1 General . 9
7.2 Requirements of anechoic chamber . 9
7.2.1 Size .
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.