光碟機之光路與控制器整合模擬系統設計

The Integrated Simulation of Optical Pick-up Head System and Controller Design

何佳航(Ja-Han Ho)

指導教授 ： 陳建祥

國立清華大學/工學院/動力機械工程學系/碩士(2006年)

摘要

本研究的目標在模擬包括光學元件影響之光碟機動態，並架構一控制器設計介面，讓使用者在為光碟機設計控制器時，除了音圈馬達讀寫頭的系統動態之外，還可以針對光學特性造成的影響而調變控制器。考量光學特性對光碟機的影響，將使控制器設計更全面性，讓工程師在設計製造碟機前，能夠預估光學特性及伺服控制的結果。
本文首先列舉四大光學理論，說明波動光學對光路模擬的重要性。再介紹光碟機光路系統、聚焦定軌光學原理與伺服控制原理。接著介紹光碟機光路系統與伺服控制系統的模擬架構，說明光路模型，解釋模擬的系統動態與控制器。最後，說明光學模擬如何與系統動態與控制器結合，解說程式傳值問題及流程設計，還有列舉模擬與實際之實驗成果，以證明此架構之可行性。

關鍵字

光路 ； 繞射 ； 使用者圖形介面 ； 光碟機

並列摘要

This research presents a simulation of optical Pick-up head system including effects of optical elements and builds a controller-design interface. When designing optical pick-up head controller, this interface allows users consider both system dynamics and optical characteristics, then they can modify controller to fit the situation precisely. Considering effects of optical elements will increase the comprehensiveness of controller design. For engineers, this creates the possibility of predicting optical performance and servo control results before manufacture .
We first introduce the four basic optical theory, show why wave optics is important to simulation of optical path, optical disc pick-up head system, the focusing and tracking optical principles, and servo control system. Then we explain the simulation construction of optical and servo system to show the model of optical path, system dynamic and controller. Finally, we illustrate how optical and servo control simulation are combined, explain parameter transformation and program flow. Then we show the simulation results and real responses to prove the feasibility of this platform.

並列關鍵字

optical path ； diffract ； GUI ； optical pick-up head

參考文獻

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