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Underwater acoustics - Hydrophones - Calibration of hydrophones - Part 1: Procedures for free-field calibration of hydrophones (IEC 60565-1:2020)
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Available format(s): Hardcopy, PDF
Language(s): English - French
Published date: 28-07-2020
Publisher: National Standards Authority of Ireland
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.Only cited Standards give presumption of conformance to New Approach Directives/Regulations.Dates of withdrawal of national standards are available from NSAI.
FOREWORD INTRODUCTION 1 Scope 2 Normative references 3 Terms and definitions 4 Symbols and abbreviated terms 5 General procedures for calibration 6 Electrical measurements7 Preparation and conditioning of transducers 8 Free-field three-transducer spherical-wave reciprocity calibration 9 Free-field calibration by comparison with an acoustic reference device10 Reporting of results 11 Recalibration periods Annex A (informative) Directional response of a hydrophone or projector Annex B (informative) Measurement of electrical impedance of hydrophones and projectors Annex C (informative) Calculation of electrical loading corrections Annex D (informative) Acoustic far-field criteria in underwater acoustic calibration Annex E (informative) Pulsed techniques in free-field calibrations Annex F (informative) Assessment of uncertainty in the calibration of hydrophones and projectors Annex G (informative) Derivation of the formulae for three-transducer spherical-wave reciprocity calibration Annex H (informative) Calibration using travelling-wave tubes Annex I (informative) Calibration of hydrophones using optical interferometry Annex J (informative) Calibration in a reverberant water tanks using continuous signals Bibliography
This part of IEC 60565 specifies methods and procedures for free-field calibration of hydrophones, as well as individual electroacoustic transducers that can be used as hydrophones (receivers) and/or projectors (source transducers).
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