| 钱梦騄,胡文祥,高文.功率超声换能器辐射声功率的激光干涉测量[J].,2000,19(2):6-8,34 |
| 功率超声换能器辐射声功率的激光干涉测量 |
| Measurement of ultrasonic power radiated by a high power transducer with a laser interferometer |
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| 中文摘要: |
| 利用激光干涉仪，绝对测定超声换能器表面的振动位移（振速）并由此而确定超声换能器的辐 射声功率．对一增幅杆型的超声换能器辐射声功率测量的实验结果表明，在本文的声功率测量范围 内，空化对换能器表面的振动位移测量影响不大，而且该换能器的电声功率转换效率经实验测定可 达到０．４０． |
| 英文摘要: |
| The ultrasonic power radiated by a high power transducer can be determined when the vibration displacement (velocity) on its surface is measured by a laser interferometer. The experimental results for a ultrasonic power transducer show that its nominal electroacoustic power transformation efficiency can be higher than 0.40, when the cavitation exists in water. |
| DOI：10.11684/j.issn.1000-310X.2000.02.002 |
| 中文关键词: 激光干涉 位移振幅 辐射声功率 |
| 英文关键词: Laser interference Displacement amplitude Radiated acoustic power |
| 基金项目:国家自然科学基金!59738150 |
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