| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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An Experimental Approach for Detection of the Acoustic Radiation Induced Static Component in Solids |
| Ming-Xi Deng* |
| College of Aerospace Engineering, Chongqing University, Chongqing 400044, China |
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| Cite this article: |
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Ming-Xi Deng 2020 Chin. Phys. Lett. 37 074301 |
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Abstract We propose an experimental approach to directly detect the acoustic radiation induced static component (SC) of primary longitudinal (L) wave propagation in solids using an ultrasonic pitch-catch technique, where a low-frequency ultrasonic transducer is used to detect the SC generated by the co-propagating primary L-wave tone burst that is excited by a high-frequency ultrasonic transducer. Essentially, the experimental approach proposed uses a dynamic method to detect the SC generated. The basic requirement is that the central frequency of the low-frequency ultrasonic transducer needs to be near the center of the main lobe frequency range of the time-domain envelope of the primary L-wave tone burst. Under this condition, the main lobe of the frequency spectrum of the SC pulse generated adequately overlaps with that of the low-frequency ultrasonic transducer. This will enable the generated SC pulse to be directly detected by the low-frequency ultrasonic transducer. The performed experimental examination validates the feasibility and effectiveness of the proposed approach for direct detection of the acoustic radiation induced SC generated by L-wave propagation in solids.
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Received: 14 April 2020
Published: 21 June 2020
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| PACS: |
43.25.Cb
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(Macrosonic propagation, finite amplitude sound; shock waves)
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43.25.Dc
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(Nonlinear acoustics of solids)
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43.25.Zx
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(Measurement methods and instrumentation for nonlinear acoustics)
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| Fund: Supported by the National Natural Science Foundation of China (Grant No. 11834008). |
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