The application of a pulse-compression technique for the ultrasonic inspection of forged steel structures with high attenuation and large dimensions is presented. The performance of such a technique is theoretically analysed and validated experimentally by exploiting linear chirp signals. Based on the preliminary results, it is found that the strategy achieves a significant enhancement of the signal-to-noise ratio and then of the inspection capability. A further increase in performance can be achieved by exploiting signal processing and by developing proper hardware.

Pulse-compression ultrasonic technique for the inspection of forged steel with high attenuation

RICCI, MARCO;
2012-01-01

Abstract

The application of a pulse-compression technique for the ultrasonic inspection of forged steel structures with high attenuation and large dimensions is presented. The performance of such a technique is theoretically analysed and validated experimentally by exploiting linear chirp signals. Based on the preliminary results, it is found that the strategy achieves a significant enhancement of the signal-to-noise ratio and then of the inspection capability. A further increase in performance can be achieved by exploiting signal processing and by developing proper hardware.
2012
non destructive testing; ultrasound; Pulse compression methods
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11770/153068
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