ULTRASONICS - FIELD CHARACTERIZATION - SPECIFICATION AND MEASUREMENT OF FIELD PARAMETERS FOR HIGH INTENSITY THERAPEUTIC ULTRASOUND (HITU) TRANSDUCERS AND SYSTEMS
International Electrotechnical Committee
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 List of symbols
5 Independent measurement of total
acoustic output power
6 Acoustic field measurement: equipment
7 Measurement procedure
Annex A (informative) - Rationale
Annex B (informative) - Assessment of uncertainty
in the acoustic quantities obtained by
hydrophone measurements
Annex C (informative) - Transducer and hydrophone
positioning systems
Annex D (informative) - Rationale for I[sal]
Annex E (normative) - Propagation and back-propagation
methods for field reconstruction: basic
formulae and requirements
Annex F (informative) - Propagation and back-propagation
methods for field reconstruction: examples
and uses
Annex G (normative) - Planar scanning of a hydrophone
to determine acoustic output power
Annex H (informative) - Properties of water
Annex I (informative) - Propagation medium and
degassing
Bibliography
Pertains to high intensity therapeutic ultrasound (HITU) devices, specifying: - relevant parameters for quantifying the field; - measurement methods at relatively low output levels and methodology for extrapolating these to higher therapeutic level fields; - consideration of sidelobes and pre-focal maxima; - parameters relevant to HITU transducers of different construction and geometry, including non-focusing, focusing with or without lenses, collimated, diverging and convergent transducers, multi-element transducers, scanning transducers and multiple sources.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 87 |
