Air-Coupled Reception of a Slow Ultrasonic A<sub>0</sub> Mode Wave Propagating in Thin Plastic Film
At low frequencies, in thin plates the phase velocity of the guided A<sub>0</sub> mode can become slower than that of the ultrasound velocity in air. Such waves do not excite leaky waves in the surrounding air, and therefore, it is impossible to excite and receive them by conventional ai...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-01-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/20/2/516 |