现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2014年
23期
72-74,79
,共4页
波形捕获%静默%触发输出%双脉冲法
波形捕穫%靜默%觸髮輸齣%雙脈遲法
파형포획%정묵%촉발수출%쌍맥충법
waveform capture%silence%trigger output%double-pulse method
由于器件和功能的增多导致电路的测试和调试越来越困难，要全真地捕获非周期的噪声、串扰和瞬时等信号几乎不可能。通过分析数字示波器的原理，探知示波器的静默和捕获过程，分析总结了三家著名示波器生产厂家对波形捕获所应用的各项新技术。通过随机概论理论对波形捕获率的分析，得到了捕获率的量化计算公式和影响因素。提出了触发输出法和双脉冲计数法二种测试示波器波形捕获率的方法，并对市场中常见示波器的捕获率进行了实测验证。
由于器件和功能的增多導緻電路的測試和調試越來越睏難，要全真地捕穫非週期的譟聲、串擾和瞬時等信號幾乎不可能。通過分析數字示波器的原理，探知示波器的靜默和捕穫過程，分析總結瞭三傢著名示波器生產廠傢對波形捕穫所應用的各項新技術。通過隨機概論理論對波形捕穫率的分析，得到瞭捕穫率的量化計算公式和影響因素。提齣瞭觸髮輸齣法和雙脈遲計數法二種測試示波器波形捕穫率的方法，併對市場中常見示波器的捕穫率進行瞭實測驗證。
유우기건화공능적증다도치전로적측시화조시월래월곤난，요전진지포획비주기적조성、천우화순시등신호궤호불가능。통과분석수자시파기적원리，탐지시파기적정묵화포획과정，분석총결료삼가저명시파기생산엄가대파형포획소응용적각항신기술。통과수궤개론이론대파형포획솔적분석，득도료포획솔적양화계산공식화영향인소。제출료촉발수출법화쌍맥충계수법이충측시시파기파형포획솔적방법，병대시장중상견시파기적포획솔진행료실측험증。
It is more difficult to test and debug circuits due to the increase of devices and their function. It is almost impos?sible to capture the non periodic noise,crosstalk and instantaneous signals entirely. According to the principle analysis of digital oscilloscope,the oscilloscope silence and capture process were ascertained. The various new technologies mastered by three well?known manufacturers to capture oscilloscope waveform are analyzed and summarized. Through the analysis of stochastic theory of waveform capture rate,the factors affecting capture rate formula and the quantification calculation formula were obtained. The trigger output method and double pulse counting method to test oscilloscope waveform capture rate are put forward. The methods were verified by testing the capture rate of the common oscilloscopes available in market.
