Ultrasonics - Measurements of electroacoustical parameters and acoustic output power of spherically curved transducers using the self-reciprocity method
Ultrasonics - Measurements of electroacoustical parameters and acoustic output power of spherically curved transducers using the self-reciprocity method
IEC TS 62903:2018, which is a Technical Specification, a) establishes the free-field convergent spherical wave self-reciprocity method for ultrasonic transducer calibration, b) establishes the measurement conditions and experimental procedure required to determine the transducer's electroacoustic parameters and acoustic output power using the self-reciprocity method, c) establishes the criteria for checking the reciprocity of these transducers and the linear range of the focused field, and d) provides guiding information for the assessment of the overall measurement uncertainties for radiation conductance. This document is applicable to: i) circular spherically curved concave focusing transducers without a centric hole working in the linear amplitude range, ii) measurements in the frequency range 0,5 MHz to 15 MHz, and iii) acoustic pressure amplitudes in the focused field within the linear amplitude range.
IEC TS 62903:2018 is a Technical Specification from the IEC that defines the free‑field convergent spherical wave self‑reciprocity method for calibration and measurement of spherically curved ultrasonic transducers. It specifies the measurement conditions and experimental procedures to determine electroacoustical parameters and acoustic output power, sets criteria for reciprocity and linearity of the focused field, and gives guidance for assessing measurement uncertainty (radiation conductance). The document applies to circular, concave spherically curved focusing transducers (no centric hole), operating in the 0.5 MHz to 15 MHz frequency range and within the linear amplitude range of the focused field.
IEC TS 62903:2018 is aimed at practitioners requiring traceable, repeatable ultrasonic transducer calibration and output power measurement:
Другие стандарты IEC
Refer to other international standards and IEC publications on ultrasonics, hydrophone calibration, acoustic power measurement and measurement uncertainty for complementary requirements and normative references. These provide broader context for traceability and conformity in ultrasonic metrology.