This part of IEC 62127 specifies relevant hydrophone characteristics. This document is applicable to:
hydrophones employing piezoelectric sensor elements, designed to measure the pulsed and continuous wave ultrasonic fields generated by ultrasonic equipment;
hydrophones used for measurements made in water;
hydrophones with or without an associated pre-amplifier.
IEC 62127-3:2022/AMD1:2026
EN IEC 62127-3:2023/A1:2026