2023 Fiscal Year Annual Research Report
Dynamic resonant frequency ratio control for high-power piezoelectric devices
| Project/Area Number |
22KJ0822
|
|---|
| Allocation Type | Multi-year Fund |
|---|
| Research Institution | The University of Tokyo |
|---|
Principal Investigator |
王 方一 東京大学, 工学系研究科, 特別研究員(DC2)
|
|---|
| Project Period (FY) |
2023-03-08 – 2024-03-31
|
| Keywords | Piezoelectric transducer / Resonance / Vibration control |
|---|
| Outline of Annual Research Achievements |
This study introduces a dynamic resonance frequency control method based on passive devices to address the issue of resonance frequency drift in high-power piezoelectric transducers, including: 1.Investigation of the dynamic resonance frequency control method for multimodal piezoelectric transducers under high driving voltages. 2.Static frequency matching and dynamic frequency control in multimodal piezoelectric actuators were achieved, significantly improving the actuators' long-term stability. 3.Stable dual-frequency ultrasound output was realized. The enhancement effect of dual-frequency ultrasound on near field acoustic levitation was explored and verified for the first time. Further development is expected to significantly enhance the performance of multimodal ultrasonic transducers.
|
Research Products
(5 results)
