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資料整理：南臺科技大學電子系 楊峻泓

Lab 1：電子儀器設備操作

教學目標：
電子儀器設備在科技領域是非常重要的，尤以示波器更是實驗過程不可或缺一部分，主要運用於量測訊號、頻率、週期、電壓、電流、占空比等，學會示波器的使用，能夠提升電路的除錯能力，經由示波器所量測的電壓、電流、頻率等值，可以快速地掌握電路整體狀態。本次課程將經由老師的教導，學習正確使用儀器、設定與量測手法，並導入電子模組的實作量測練習，循序漸進的教學方式，能夠加深學生對儀器的操作與提升問題處理的能力。

教學方法：

  • 以2人為一組之共學方式，讓同學互相學習儀器操作
  • 以目標導向方式，要求同學依據給定之規格，設定信號產生器、電源供應器與三用電錶
  • 搭配示波器獲取訊號電壓、頻率等值，並比對給定之題目目標與實際量測結果
  • 輔以小考方式，不斷檢驗同學學習狀況
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認識儀器廠商與量測儀器種類

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老師引進門，修行在個人！
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【延伸閱讀】14歲靠Google自組無人機　周延俊：國中只夢想考上建北很可悲

示波器介紹 (OWON XDS3102A)

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資料來源：良興購物網
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功能介紹

  • 使用者手冊 (User manual)
  • 主要特點
    • 100MHz頻寬雙通道
    • 12-bit 高解析ADC
    • 1GS/s即時取樣率
    • 8" 800 x 600 高解析度顯示(觸控螢幕)

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什麼是ADC？什麼是頻寬？

量測探棒介紹

  • 被動探棒和主動探棒
  • 電壓探棒和電流探棒
  • 探棒的原理與種類 (Tektronix)
  • 探棒上面有電容嗎？試著調整測試探棒的補償電容
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    圖片來源：全華圖書，電子學實驗 (作者：蔡朝洋)

量測時域波型的相關參數

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示波器耦合設定

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實習驗收項目

  • 熟習示波器操作按鈕
    • 顯示區域與示波器畫面的刻度表示意義
    • 輸入接頭
    • 校準電壓輸出端子
    • 垂直控制
    • 水平控制
    • 觸發控制
    • 數學運算
    • 功能控制鈕
    • 多功能旋鈕
  • 熟習示波器的基本量測
    • 測量電壓/電流
    • 測量頻率/週期
    • 測量相位關係
    • 測量峰對峰值、有效值 (方均根值)、平均值…等
  • 熟習直流耦合(DC coupling)/交流耦合(AC coupling)/GND的差異
  • 熟習示波器視窗觸發控制
    • 觸發模式：Auto、Normal、Single/Force
    • 觸發方式：準位觸發/邊緣觸發
  • 儲存示波器量測波形
  • 觸發準位對波型的影響
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    圖片來源：全華圖書，電子學實驗 (作者：蔡朝洋)

參考資料

任意波形產生器 (OWON AG-2062F Waveform Generator)

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功能介紹

  • 使用者手冊 (User manual)
  • 主要特點
    • 採用先進的DDS技術，20MHz最高輸出頻率 (DDS是直接數位式頻率合成器(Direct Digital Synthesizer)的英文縮寫)
    • 125MS/s最高取樣速率，頻率解析度1μHz
    • 14 bits垂直解析度，1 M點任意波形長度
    • 豐富的波形輸出：5種基本波形，內置48種任意波形

操作介面說明

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  • To Display/Edit Both Channels
    • Press Both button to display the parameters of both channels.
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  • 輸出弦波訊號
    • 設置頻率／週期
    • 設置振幅
    • 設置高準位
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  • 輸出方波訊號
    • 設置工作週期

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什麼是Duty cycle？ 什麼是Pulse width？

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  • 輸出斜坡信號
    • 設置對稱性
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  • 輸出脈波訊號
    • 設置脈波寬度/工作週期
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實習驗收項目

  • 設定輸出波型種類、週期、頻率、振幅大小、振幅偏移量、工作週期
    • 方波/脈波
    • 三角波
    • 弦波

電源供應器介紹 (OWON ODP3033)

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資料來源：良興購物網
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功能介紹

  • 使用者手冊 (User manual)
  • 主要特點
    • 三通道單獨可調輸出
    • 1mV / 1mA 最大輸出分辨率
    • 可實現獨立、並聯、串聯、正負四種工作模式
    • 過壓/過流保護功能

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在還沒解說之前，看文字先猜猜看！！

所有通道模式

雙通道模式

輸出模式圖標

  • 獨立模式：各通道的參數可獨立設置。
  • 通道跟蹤 (Parallel track)：在獨立模式下分別設置CH1和CH2的輸出參數後，進入通道跟蹤模式後，若改變其中一個通道的參數，另一個通道的對應參數也會自動按比例同步改變。

    並聯通道跟蹤 (Parallel track)：在獨立模式下分別設置CH1和CH2的輸出參數後，進入通道跟蹤模式後，若改變其中一個通道的參數，另一個通道的對應參數也會自動按比例同步改變。

    串聯通道跟蹤 (Serial track)：輸入電壓的額定值為獨立模式下兩個通道之和。輸入電流的額定值與獨立模式下單個通道相同。

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實習驗收項目

  • 設置輸出電壓
  • 設置限流功能
  • 設置輸出電壓與限流功能
  • 在獨立模式，設置CH1的電壓為2V，電流為1A；CH2的電壓為4V，電流為2A。
  • 在通道跟蹤模式，設置CH1的電壓為6V，則CH2的電壓會自動按比例同步到12V。
  • 在通道跟蹤模式，若設置CH1的電流為2A，則CH2的電流會自動按比例同步到4A。（如果設置值超過最大輸出值時，則設置為最大值)

數位電表介紹 (OWON XDM3051)

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功能介紹

操作介面說明 (練習看英文規格書)

量測限制

測量方法

  • 電壓測量

  • 二極體測量

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混合實習驗收項目

參考資料

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