修正信号的输出可以用于驱动一个简单的自动聚焦伺服器。
The output of this correction signal can be used to drive a simple auto-focus servo.
在DVD聚焦伺服系统中，光盘翘曲会导致产生与光盘转动频率相同的周期性扰动。
In DVD focus servo system, the skew of the disc induces periodic disturbance whose frequency is the same with the rotation frequency of the disc.
但是，固体浸没透镜光存储系统必须解决精密聚焦伺服问题和动态飞行高度控制问题。
But to use SIL recording, the problems of the focusing servo and the dynamically flying height control of the SIL must be solved.
为了提高DVD聚焦伺服系统的控制精度和响应速度需要加入控制器，提出了一种新的校正算法。
We need to add the controller in order to enhance the control precision and response speed of DVD focus servo system, and then a new emendation arithmetic was put forward.
采用短波长激光光源是实现高密度光存储的一种有效途径，但是对聚焦伺服系统提出了更高的要求。
It is available to improve optical storage density by using short wavelength laser, but a harder focusing servo system is need.
研究光学拾取头的基本原理和光盘信号拾取原理，简要分析了实际的光学头聚焦伺服和循迹伺服的机械结构。
Studying the theory of optical pickup head unit (OPU) and how to pickup the signal on the disk. Based on these theories, it analyse the structure of the focusing and tracking device.
介绍了光电测微系统的基本原理及其构成，分析了该系统的关键环节即聚焦伺服系统，建立了音圈电机的数学模型。
The focus servo system of the OM is analyzed and the mathematical model of the voice-coil motor is presented.
介绍了光电测微系统的基本原理及其构成，分析了该系统的关键环节即聚焦伺服系统，建立了音圈电机的数学模型。
This paper deals with the open system of numerical control based on Windows98, mainly discussing the interface module , the manage module and the servo module.
分析了DVD聚焦伺服系统中音圈电机和光头拾取器的数学模型，通过实验测定其模型参数，完成了DVD聚焦伺服系统的建模，并进行了仿真。
The model of voice coil motor and optical pickup unit are analyzed, the model parameters are tested, the model of DVD focus servo system is built and the simulation is carried out.
本发明通过在摇臂的旋转轴结合部设置聚焦伺服用调节器，来上下调节凝聚在光盘记录面的焦点，从而能够准确补偿光盘旋转时产生的光盘记录面的位置变化。
With the focus serve fixed on the rotating shaft to adjust the focus point up and down, it is capable of accurately making up position change of the disk recording area at rotation.
分析了磁光盘驱动器聚焦与循轨数字伺服系统各组成部分的原理，并设计和实现了一套基于DSP的数字伺服控制系统。
The paper analyzes the principle of components of magneto optical disk driver focusing and tracking servo system, then designs and realizes a DSP based digital servo control system.
分析了磁光盘驱动器聚焦与循轨数字伺服系统各组成部分的原理，并设计和实现了一套基于DSP的数字伺服控制系统。
The paper analyzes the principle of components of magneto optical disk driver focusing and tracking servo system, then designs and realizes a DSP based digital servo control system.
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