2010 Fiscal Year Final Research Report
A study of nondestructive testing with the tilted angle polarization type ultrasonic transducer
| Project/Area Number |
20560392
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Measurement engineering
|
|---|
| Research Institution | Akita University |
|---|
Principal Investigator |
IMANO Kazuhiko Akita University, 工学資源学研究科, 教授 (60125705)
|
|---|
| Project Period (FY) |
2008 – 2010
|
| Keywords | TAPP / 傾斜分極 / 探傷 / 有限振幅音波Lamb波 / 亀裂 / 高調波 / CAN |
|---|
| Research Abstract |
The tilted-angle polarization type piezoelectric (TAPP) transducer is used to generate finite-amplitude guided waves in an aluminum plate. The TAPP transducer is directly coupled to the sample without a wedge. The ultrasonic wave generated by the TAPP is analyzed in both time space and time?frequency space. These experiments clearly show that the 1MHz finite-amplitude wave from the TAPP transducer generates the higher harmonic component of a 2 MHz ultrasonic Lamb wave. The possible application of the harmonic wave of the TAPP transducer in nondestructive evaluation is described.
|
