作者: Jana Becker , Thomas Rehfeldt , Rainer Meier
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摘要: In a method for the ultrasonic testing of workpiece (2) in curved area its surface, particular made fiber composite material, an test head (10) is acoustically coupled to this area, and includes transducer arrangement (12) comprising plurality (N) individually driveable elements (20 i) which are arranged next one another. chronologically successive cycles, number (n) respectively combined form group driven pulses within cycle time delayed manner with respect another such that transmitted ultrasound beam (30 a-d) swept predetermined angular range (α1, α2), so echo signals, corresponding pulses, each received from different directions (2).