| 1. | Acoustic resonance spectroscopy 声学共振谱学 |
| 2. | The acoustic resonance phenomenon in high intensity gaseous discharge lamps hinders the extension and application of electronic ballasts 摘要高强度气体放电灯中的声谐振现象阻碍了电子镇流器的推广应用。 |
| 3. | The 7 years ' applicable practices indicate that the frequency modulation technology with dc bus voltage ripples is very effective to suppress acoustic resonances 7年的使用实践表明,直流脉动电压频率调制技术对抑制声谐振现象十分有效。 |
| 4. | There are acoustic resonance phenomena in hid lamps when driven at high frequency , which prohibits the developments of electronic ballast of hid lamps 高强度气体放电灯在高频工作时特有的声谐振现象大大阻碍了高强度气体放电灯电子镇流器的发展。 |
| 5. | All kinds of circuit topologies sorted by methods which can eliminate acoustic resonance , are summarized and analyzed . a suitable method is chosen in the design 然后分析了hid灯产生声共振的原因及危害,根据避免声共振的方法对电路拓扑和控制方法进行了综述。 |
| 6. | Chapter iv investigates the mechanism of acoustic resonance , its effects and its characteristics . finally all kinds of methods to eliminate acoustic resonance are reviewed 论文第四章从物理机理出发讲述了声谐振产生的原因,声谐振的危害及表现特性,最后对目前用于解决声谐振现象的各种对策进行了总结。 |
| 7. | With an aim at this problem , this paper suggests the modulation scheme with dc bus voltage ripple by using the front - end active power factor correct circuit based on the analysis of necessary conditions of producing acoustic resonances 针对这一现象,在分析产生声谐振的必要条件的基础上,重点提出了利用前级有源功率因数校正电路的直流母线脉动电压的调制方案。 |
| 8. | Acoustic resonance is a serious problem of the hid lamps when operating under high frequency . chapter n investigates the mechanism of acoustic resonance , its effects and its characteristics . all kinds of methods to eliminate acoustic resonance are introduced and analyzed by theory and experiments 声谐振问题是高强度气体放电灯高频工作下必须面对的一个问题,论文第二章从物理机理出发讲述了声谐振产生的原因,声谐振的危害和表现特性,然后对各种消除声谐振的方法进行了综述,提出了各种方法的优缺点。 |