查询词典 frequency bandwidth

Objective: To observe the treatment effect on port-wine stains with double frequency 532nm wavelength Nd:YAG Laser with variable bandwidth.

目的：观察倍频Nd：YAG532nm波长激光治疗鲜红斑痣效果。

This paper aims at the design, implementation and evaluation of an industrial brushless servomotor drive. The proportional-plus-integral speed control with gains tuned by an extension of the frequency-zone method and anti-windup PI speed control based on self-conditioning techniques are studied. The parameters of speed performance criteria, control loop bandwidth, per normal inertia, and noise sensitivity are employed to evaluate the performance of the drive.

本文针对工业用无刷伺服马达驱动器进行设计与制作，延伸频率区域法分别设计比例积分控制之增益值，以自我条件技术完成比例积分速度控制之反卷起设计，并依据速度性能准则之参数，如控制回路频宽、惯量标么值、杂讯灵敏度等，进行驱动器之性能评估。

It is indicated that only a single resonance peak appears in the amplitude versus frequency curve without spurious resonance peaks during the procedure. The direct actuation enables to improve the tuning accuracy, weaken the possible sample damage by the tip, and enhance the atomic force microscope bandwidth and imaging rate.

研究表明，采用压电探针的直接激振方法在探针振动的幅频曲线中仅有单一谐振峰，可以避免在压电陶瓷管激振方法下由液体振动造成的寄生谐振峰，因此使用压电探针不仅提高了探针振动频率的控制精度，而且减小了针尖对样品的损坏，还提高了仪器的带宽和成像速度。

Using its 3 Hz resolution bandwidth, power line sidebands below -95 dBc can typically be measured at frequency offsets of only 50 or 60 Hz.

利用其第3赫兹的带宽，电力线边低于-95 dBc的通常可以测量频率偏移只有50或60赫兹。

This provides the theoretical basis for that using the lower frequency update data-rate device synthesises wideband LFM signal with bandwidth near to the phase update data-rate of the devices.

数字方式形成的LFM信号具有线性度高、相干性好、控制灵活等优点，这是模拟方式无法比拟的。但是，由模拟方式合成的LFM信号的相位是连

Since the glint noise is a low-frequency noise and its bandwidth is usually lower than that of flight control system, therefore low pass noise filtering is not practical for guidance command and noise are not distinguishable.

闪烁杂讯属低频杂讯，通常比飞控制系统频宽还要低，无法与导引命区分，所以能只用低通波器将其除。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。