臺灣博碩士論文加值系統

醫療設備不得被外來電磁雜訊所干擾，影響其正常運作功能，同時本身也不得成為電磁雜訊輻射干擾源，近年來已經成為醫療作業環境中所關切之安全性問題。本研究針對醫療級觸控平板電腦，於產品開發初期運用田口方法進行參數設計，選擇適當內外直交表並利用回應圖及變異數方法進行分析。考量電磁相容特性中的輻射干擾為回應值，決定實驗中PCB及機構設計相關參數等控制因子，並考量產品使用過程中搭配之周邊裝置為雜音因子，同時探討控制因子間之交互作用。提出最佳設計參數組合為轉接卡佈線層數6層、隔絕卡EMI濾波器600Ω、時脈並聯電容元件33p以及隔絕卡接地，並發現轉接卡佈線層數與隔絕卡EMI濾波器存在交互作用。驗證實驗結果顯示，該組合條件下信號雜訊比落於信賴區間，表示實驗的再現性良好。該參數設計有效改善產品電磁干擾特性，並可提供給業界作為設計規格之參考，且提升產業競爭力。

Amid technology advances and development increasing number of electronic devices are getting more frequent uses every day. Equipment exposed to their electromagnetic fields and waves may suffer malfunctions caused by undesired impacts which may lead to system failure or accidents and potential threat to major public safety events. This study employs Taguchi method in the parameter design at the initial development stage of medical-grade touch panel computer. Control factors of its PCB and mechanic design relevant parameters are determined by electromagnetic compatibility responses of radiated emission. The noise factors are peripherals used together with the tablet. The optimal design parameters are proposed by using the response graphs and the results of the variance analysis in Taguchi mothed. The results show the optimal design parameter isolated card grounding and riser card layout 6 layers and 33p capacitor and 600Ω filter located at source of noise. The optimal parameter matrix improves electromagnetic compatibility, complies with desired design specification, and qualifies the test specification.

摘　要 i
ABSTRACT ii
誌　謝 iv
目　錄 v
表目錄 vii
圖目錄 viii
第一章 緒論 1
1.1 研究背景與動機 1
1.2 研究目的 6
1.3 研究範圍與限制 6
1.4 研究流程 7
1.5 論文架構 8
第二章 文獻探討 10
2.1 電磁相容性 10
2.1.1 電磁干擾 10
2.1.2 傳導干擾 12
2.2 田口方法 13
第三章 研究方法 16
3.1 直交表 16
3.2 交互作用 17
3.3 點線圖 17
3.4 信號雜音比 18
3.5 參數分類 19
3.6 參數設計 19
3.7 田口品質工程之變異數分析 21
3.8 確認實驗 24
第四章 個案研究 26
4.1 實驗規劃 27
4.1.1 控制因子 27
4.1.2 雜音因子 28
4.1.3 二階交互作用 30
4.1.4 配置直交表 30
4.2 測試環境與資料蒐集 32
4.3 資料分析 35
4.3.1 因子效果分析 35
4.3.2 田口品質之變異數分析 36
4.3.3 驗證實驗 37
第五章 結論與建議 40
5.1 結果與討論 40
5.2 研究貢獻 40
5.3 未來研究建議 41
參考文獻 42

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