IEC 62127-2:2025 超声波 水听器 第2部分:超声波场的校准

标准编号：IEC 62127-2:2025

中文名称：超声波 水听器 第2部分:超声波场的校准

英文名称：Ultrasonics - Hydrophones - Part 2: Calibration for ultrasonic fields

发布日期：2025-01-07

标准范围

IEC 62127-2:20 25规定:-绝对水听器校准方法；-相对(比较)水听器校准方法。对于本文件涵盖的频率范围内的各种相对和绝对校准方法，提出了建议并参考了公认的文献。本文件适用于-用于在水中和在50kHz至100MHz的超声波频率范围内进行测量的水听器；-采用压电传感器元件的水听器，设计用于测量由超声设备产生的脉冲波和连续波超声场；-具有或不具有水听器前置放大器的水听器。IEC 62127-2:20 25取消并取代了2007年发布的第一版、修正案1:20 13和修正案2:20 17。本版构成技术修订版。与上一版相比，此版本包括以下重大技术变更:a)取消了40 MHz的频率上限；b)水听器灵敏度定义已经改变，以将灵敏度识别为复值量；c)方向响应测量和有效尺寸确定程序已在12.5.1中更新，以符合IEC 62127-3的最新变化；d)对附件F进行了修正，纳入了高频复值校准的校准技术；e)附录K中的互易方法描述扩展到还包括聚焦换能器。

IEC 62127-2:2025 specifies:
- absolute hydrophone calibration methods;
- relative (comparative) hydrophone calibration methods.
Recommendations and references to accepted literature are made for the various relative and absolute calibration methods in the frequency range covered by this document.
This document is applicable to
- hydrophones used for measurements made in water and in the ultrasonic frequency range 50 kHz to 100 MHz;
- hydrophones employing piezoelectric sensor elements, designed to measure the pulsed wave and continuous wave ultrasonic fields generated by ultrasonic equipment;
- hydrophones with or without a hydrophone pre-amplifier.
IEC 62127-2:2025 cancels and replaces the first edition published in 2007, Amendment 1:2013 and Amendment 2:2017. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) the upper frequency limit of 40 MHz has been removed;
b) hydrophone sensitivity definitions have been changed to recognize sensitivities as complex-valued quantities;
c) directional response measurement and effective size determination procedures have been updated in 12.5.1 to align with recent changes in IEC 62127-3;
d) Annex F has been amended to comprise a calibration technique for high-frequency complex-valued calibration;
e) the reciprocity method description in Annex K was extended to also comprise focusing transducers.

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