Additionally some manufactures perform characterizations according to AWS, ESI, and many other industrial and military standards. As part of the documentation process, an extensive database containing records of the waveform and spectrum of each transducer is maintained and can be accessed for comparative or statistical studies of transducer characteristics.
Manufactures often provide time and frequency domain plots for each transducer.
The signals below were generated by a spiked pulser. Beam Alignment Measurements provide data on the degree of alignment between the sound beam axis and the transducer housing. This information is particularly useful in applications that require a high degree of certainty regarding beam positioning with respect to a mechanical reference surface. Beam Profiles provide valuable information about transducer sound field characteristics. Axial beam profiles are created by recording the pulse-echo amplitude of the sound field as a function of distance from the transducer face and provide data on depth of field and focal length.