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High-power high-resolution pulser for air-coupled ultrasonic NDE applications

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5 Author(s)
J. Salazar ; Dept. of Electron. Eng., Univ. Politecnica de Catalunya, Barcelona, Spain ; A. Turo ; J. A. Chavez ; J. A. Ortega
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This paper describes the design and development of a high-power high-resolution pulser designed especially for air-coupled ultrasonic NDE applications requiring high material penetration capability. The pulser can deliver up to 800 V in a spike excitation type pulse to appropriate low/medium frequency transducers. Moreover, the pulser operates in three different modes: single pulse, double pulse (pulse cancellation technique) and external reference signal, where the last two operating modes are intended to enhance the resolution of ultrasonic inspections

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Instrumentation and Measurement Technology Conference, 2001. IMTC 2001. Proceedings of the 18th IEEE  (Volume:3 )

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