YY/T 0865.1-2024 Ultrasonics—Hydrophones—Part 1:Measurement and characterization of medical ultrasonic fields
YY/T 0865.1-2024 Ultrasonics—Hydrophones—Part 1:Measurement and characterization of medical ultrasonic fields
Basic Information
Scope
This document describes the method of measuring the acoustic field generated by medical ultrasound equipment in liquids using a calibrated hydrophone, including the requirements for the bandwidth standard and calibration frequency range depending on the spectral components of the acoustic field to be characterized.
This document:
——Provides a set of measurable acoustic parameters based on acoustic fundamentals;
——Provides a set of derived auxiliary acoustic parameters, called derived acoustic parameters, under certain assumptions of these measurements;
——Provides measurement steps that can be used to determine acoustic pressure parameters;
——Provides conditions for measuring acoustic parameters using a calibrated hydrophone;
——Provides steps to correct the limitations caused by using hydrophones with limited bandwidth and limited sensitive element sizes, and is used to estimate the corresponding uncertainties.
This document is applicable to the measurement and characterization of medical ultrasound fields using ultrasonic hydrophones.