ULTRASONICS - HYDROPHONES - PART 1: MEASUREMENT AND CHARACTERIZATION OF MEDICAL ULTRASONIC FIELDS UP TO 40 MHZ
International Electrotechnical Committee
FOREWORD
INTRODUCTION
1 Scope and object
2 Normative references
3 Terms, definitions and symbols
4 List of symbols
5 Measurement requirements
6 Measurement procedure
7 Beam characterization
8 Requirements for specific ultrasonic fields
9 Compliance statement
Annex A (informative) - General rationale
Annex B (informative) - Hydrophones and positioning
Annex C (informative) - Acoustic pressure and intensity
Annex D (informative) - Voltage to pressure conversion
Annex E (informative) - Correction for spatial averaging
Annex F (informative) - Acoustic output parameters for
multi-mode medical ultrasonic fields
in the absence of scan-frame
synchronization
Annex G (informative) - Propagation medium and degassing
Annex H (informative) - Specific ultrasonic fields
Annex I (informative) - Assessment of uncertainty in the
acoustic quantities obtained by
hydrophone measurements
Annex J (informative) - Transducer and hydrophone positioning
systems
Annex K (informative) - Beamwidth midpoint method
Bibliography
Specifies methods of use of calibrated hydrophones for the measurement in liquids of acoustic fields generated by ultrasonic medical equipment operating in the frequency range up to 40 MHz.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 87 |
