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BS EN IEC 62127-3:2023+A1:2026 Ultrasonics. Hydrophones - Properties of hydrophones for ultrasonic fields, 2026
- undefined [Go to Page]
- Annex A (normative)Normative references to international publicationswith their corresponding European publications
- Final version [Go to Page]
- CONTENTS
- FOREWORD
- INTRODUCTION
- INTRODUCTION to Amendment 1
- 1 Scope
- 2 Normative references
- 3 Terms, definitions and symbols
- 4 List of symbols
- 5 Hydrophone characteristics [Go to Page]
- 5.1 General
- 5.2 Basic information
- 5.3 Sensitivity
- 5.4 Frequency response [Go to Page]
- 5.4.1 Stated frequency band
- 5.4.2 Frequency dependence
- 5.5 Directional response [Go to Page]
- 5.5.1 General
- 5.5.2 Determination of the directional response
- 5.5.3 Symmetry of directional response
- 5.6 Effective hydrophone size [Go to Page]
- 5.6.1 General
- 5.6.2 Model of directional response
- 5.6.3 Fitting of experimental response to theoretical predictions
- 5.7 Dynamic range, linearity and electromagnetic interference
- 5.8 Electric output characteristics [Go to Page]
- 5.8.1 Hydrophone without pre-amplifier
- 5.8.2 Hydrophone assembly
- 5.8.3 Output lead configuration
- 5.9 Environmental aspects [Go to Page]
- 5.9.1 Temperature range
- 5.9.2 Water tightness
- 5.9.3 Water properties and incompatible materials
- 5.9.4 Exposed material
- 5.10 Guidance manual
- 5.11 List of hydrophone characteristics
- Annex A (informative) Examples of information on hydrophone properties [Go to Page]
- A.1 General
- A.2 Basic information
- A.3 Sensitivity and frequency response
- Tables [Go to Page]
- Table A.1 – Example of basic information for 0,2 mm needle hydrophone assembly
- Table A.2 – Frequency response of 0,2 mm needle hydrophone in the range 1 MHz to 40 MHz
- Figures [Go to Page]
- Figure A.1 – Frequency response of 0,2 mm needle hydrophone in the range 1 MHz to 40 MHz
- Table A.3 – Frequency response of 0,2 mm needle hydrophone in the range 100 kHz to 1 MHz
- Figure A.2 – Frequency response of 0,2 mm needle hydrophone in the range 100 kHz to 1 MHz
- A.4 Directional response
- A.5 Effective dimension
- Figure A.3 – Directional response of 0,2 mm needle hydrophone
- Figure A.4 – Effective radius of 0,2 mm needle hydrophone
- A.6 Dynamic range, linearity and electromagnetic interference [Go to Page]
- A.6.1 Lower dynamic limit
- A.6.2 Upper dynamic limit
- Figure A.5 – Comparison of modelled and experimentally derived directional response
- A.7 Electric output characteristics
- A.8 Environmental aspects
- Annex B (informative) Rationale [Go to Page]
- B.1 General
- B.2 Changes to the determination of directional response
- B.3 Changes to the determination of effective radius
- Annex C (informative) Membrane hydrophone directivity model [Go to Page]
- C.1 General
- C.2 Details of model
- Bibliography [Go to Page]
