DIN EN 61391-1:2018-09
Ultrasonics - Pulse-echo scanners - Part 1: Techniques for calibrating spatial measurement systems and measurement of system point-spread function response (IEC 61391-1:2006 + A1:2017); German version EN 61391-1:2006 + A1:2017 / Note: DIN EN 61391-1 (2...