TEK3034示波器使用教程.ppt

Board Layout Aberration Effects Caused by a logic transition ringing with the signal line inductance and capacitance. Duration is damped by the signal line’s resistance. Shorter Data Valid Window Challenge Rambus 200ps setup/hold times DDR 250ps Firewire 1394b skew 100ps Faster Edge Speed Challenge Rambus 200ps rise/fall times DDR 250ps Firewire 1394b 80-300ps USB2 500ps Oscilloscope Bandwidth Specification How Fast is Fast Enough? Rise/Fall Time vs. Oscilloscope Bandwidth Rise Time(oscilloscope) ~= 0.35/BandWidth(oscilloscope) 2 GHz BW Oscilloscope has ~200ps Rise Time 4 GHz BW Oscilloscope has ~100ps Rise Time Measuring 100ps RT with 2GHz BW oscilloscope RT(measured) = SQRT[RT(oscilloscope)2 + RT(Signal)2] RT(measured) = SQRT[200ps2 + 100ps2] = 224ps! Measuring 200ps RT with 4GHz oscilloscope RT(measured) = SQRT[RT(oscilloscope)2 + RT(Signal)2] RT(measured) = SQRT[100ps2 + 100ps2] = 140ps! Thank you very much! 《Tek3034示波器使 用》教学 1.示波器基礎認識 ( BASIC )1-1.外觀 ( FEATURE ) 1-2.螢幕訊息 ( DISPLAY ) 1-3.面版說明 ( FRONT PANEL ) 2.簡易操作 ( BASIC )2-1.簡易操作步驟 2-2.如何打開通道 ? 2-3.如何切換控制多通道 ? 2-4.如何調整波形大小 ? 2-5.如何調整波形位移 ? 2-6.如何改變觀察波形的週期數 ? 2-7.自動設定電壓及時間檔位 3.阻抗匹配((COUPLING ) 4. 觸 發4.1. 觸發 模 式 ( TRIGGER MODE ) 4-2.觸發點 ( TRIGGER POINT )5.量測5.1 游標量測 ( CURSUR )5.2 參數量測 ( PARAMETER ) 1-1.外觀 ( FEATURE )1.DISPLAY 螢幕顯示及觀察波形之區域2.POWER ON/OFF 電源開關3.FRONT PANEL 示波器的操作及控制區域4.CHANNEL INPUT 連接測試棒信號輸入端5.USB DRIVE 儲存數據資料及圖形的周邊設備 1.示波器基礎認識 ( BASIC ) 1-2.螢幕訊息 ( DISPLAY )1.TRACE 顯示信號，顯示使用通道之區域。2.TRIGGER LEVEL 觸發參考位準。3. DISPLAY LEVEL 显示觸發參考位準4.CHANNEL 每個通道的設定狀態。5.TRIGGER SETUP 觸發設定顯示狀態。 6. MEASURE INFORMATION 测量信息7.WAVEFORM 顯示波形。 1 2 3 4 5 6 7 1-3.面版說明 ( FRONT PANEL )輸入通道设置区域 ( CHANNELS AREA)通道 1 / 2 / 3 / 4 的控制區，此控制區內主要是提供信號軌跡的開啟 關閉、垂直電壓檔位的控制、輸入 阻抗的匹配設定 … 等。 1.SELECT CHANNEL 1 / 2 / 3 / 4 2. CHANNEL ON / OFF 3. Vertical / horizontal Position 4. Vertical / hori