Pulse Compression for improved Signal-to-noise Ratio in Ultrasonic Testing

  • Pulse Compression for improved Signal-to-noise Ratio in Ultrasonic Testing

    Posted by william on 27/11/2021 at 4:14 pm

    You were talking about the advantages of Pulse Compression. What are the drawbacks of the Pulse compression in comparison to normal excitation?

    jaden replied 7 months, 1 week ago 2 Members · 1 Reply
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  • Ultrasonic Testing (UT)

    jaden

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    28/11/2021 at 1:29 pm
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    There are two main disadvantages;

    1) It requires much more flexibility in the excitation hardware, ideally the signal source and/or amplifier needs to be able to generate arbitrary waveforms. This is not typically possible with conventional UT hardware (basic pulsers).

    2) The received signal must also be post-processed (digitally) before it can be viewed. Although this is not such as huge disadvantage since this is also the case for many modern NDT methods (e.g. FMC TFM).

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