ISO INTERNATIONAL STANDARD 4366 Secondedition 2007-05-15 Hydrometry Echo sounders for water depth measurements Hydrométrie - Sondeurs a écho pour le mesurage de la profondeur de I'eau Reference number ISO 4366:2007(E) ISO @ ISO 2007 ISO 4366:2007(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. . In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable foruse by IsO member bodies. In the COPYRIGHTPROTECTEDDOCUMENT @ISO2007 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either Iso at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56 · CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISO 2007 - All rights reserved ISO 4366:2007(E) Contents Page 1 Scope 2 Normative references 3 Terms and definitions 4 Units of measure 5 Principles of operation 5.1 General 5.2 Theory of operation .. 2 5.3 System components 2 5.4 Non-recording echo sounders 3 5.5 Analog recording echo sounders 3 5.6 Digital echo sounders .. 4 6 Selection of instrument 6 6.1 General 6.2 Effect of operating frequency 6 6.3Effect of beamwidth 6.4 Type of data display 8 6.5 Accuracy 8 6.6 Type of transducer system 8 7 Instruments performance criteria . 9 7.1 General 9 7.2 Information to be specified by the user 9 7.3 Information to be specified by the manufacturer 9 7.4 Housing 10 7.5 Additional features 10 8 Field use of echo sounders 11 8.1 Calibration 11 8.2 Interpretation of data 12 8.3 Precautions 12 9 Operations manual 12 Bibliography 13 @ ISO 2007 - All rights reserved ili ISO 4366:2007(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies (isO member bodies). The work of preparing International Standards is normally carried out through IsO non-governmental, in liaison with ISO, also take part in the work. IsO collaborates closely with the International adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent ISO 4366 was prepared by Technical Committee ISO/TC 113, Hydrometry, Subcommittee SC 5, Instruments, equipment and data management. This second edition cancels and replaces the first edition (IsO 4366:1979), which has been technically revised. iv ISO 2007 - Allrights reserved INTERNATIONAL STANDARD ISO4366:2007(E) Hydrometry Echo sounders for water depth measurements 1 Scope This International Standard provides information concerning the principles of operation, selection and measurements. The use of standard terminology is promoted. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IsO 772, Hydrometric determinations - Vocabulary and symbols 3 Terms and definitions For the