| 1. | Methods of structural damage detection based on frequency change
基于频率变化的结构损伤识别方法 |
| 2. | Transient state frequency variation
动态频率变化率 |
| 3. | Frequency variation rate
频率变化速率 |
| 4. | The wrap - up ratio is the ratio of the sine of the maximum scan angle to the percentage change in frequency required to scan
综合比率是最大扫描角的正弦与所需的频率变化百分率之比。 |
| 5. | Having the excellent electrical performances , low losses and a capacitance of a slight variation with both temperature and frequency
电性能优良，损耗小，电容量随温度和频率变化小。 |
| 6. | According to the laser gain change is linear related to the frequency shift , the doppler frequency is extracted by the signal processing
根据激光的增益变化和频率变化成线性关系，可以对信号进行处理求出多普勒频移。 |
| 7. | It not only inherits and develops stft localize , but also overcomes shortcomings , such as window size not changing with the frequency
它既继承和发展了stft的局部化思想，同时又克服了窗口大小不能随频率变化等缺点。 |
| 8. | Pll has the excellent narrow - band - tracking - filtering characteristic . in this scheme , we combine the merits of dds and pll
该方案是将dds的高分辨率、高精确度、频率变化易于控制的优点与pll良好的窄带跟踪性能相结合。 |
| 9. | The effects of observing scale on the measurements of acoustical velocity were studied by ray theory and equivalent medium theory
分析了声波频率影响传播速度的机理，给出了不同温度不同压力条件下声波速度随频率变化关系的实例。 |
| 10. | Then the pulse is modulated by pwm . after the modulated signal through a low pass filter , we can get the change of the frequency that related to the capacitor
对频率变化的脉冲进行宽度调制,通过低通滤波就可以输出频率变化量,也就可以得到相应的加速度值。 |
