| Autor: |
Kapranov, Boris I, Sutorikhin, Vladimir A |
| Zdroj: |
IOP Conference Series: Materials Science and Engineering; October 2017, Vol. 253 Issue: 1 p012005-012005, 1p |
| Abstrakt: |
An unusual phenomenon was revealed in the metal-ultrasound interaction. Microwave sensor generates surface electric conductivity oscillations from exposure to elastic ultrasonic vibrations on regions of defects embracing micro-defects termed as "crack mouth." They are known as the region of "acoustic activity," method of Acoustic Emission (AE) method. It was established that the high phase-modulation coefficient of reflected field generates intentional Doppler radar signal with the following parameters: amplitude-1-5 nm, 6-30 dB adjusted to 70- 180 mm. This phenomenon is termed as "Gorbunov effect," which is applied as a remote non-destructive testing method replacing ultrasonic flaw detection and acoustic emission methods. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
