太赫兹科学与电子信息学报
太赫玆科學與電子信息學報
태혁자과학여전자신식학보
Information and Electronic Engineering
2014年
2期
295-298
,共4页
数字电压表%脉冲幅度%测量%不确定度
數字電壓錶%脈遲幅度%測量%不確定度
수자전압표%맥충폭도%측량%불학정도
digital multimeter%pulse amplitude%measurement%uncertainty
数字示波器测量单次脉冲幅度时，存在测量不确定度大的缺点。对高采样率数字电压表原理和脉冲幅度准确测量原理进行对比分析，提出了利用高采样率数字电压表进行精确测量单次脉冲幅度的方法，并对该方法进行了具体阐述，得出测量结果不确定度为3×10-4。该测量方法准确度高，测量范围宽，测量成本低，具有较好的应用前景。
數字示波器測量單次脈遲幅度時，存在測量不確定度大的缺點。對高採樣率數字電壓錶原理和脈遲幅度準確測量原理進行對比分析，提齣瞭利用高採樣率數字電壓錶進行精確測量單次脈遲幅度的方法，併對該方法進行瞭具體闡述，得齣測量結果不確定度為3×10-4。該測量方法準確度高，測量範圍寬，測量成本低，具有較好的應用前景。
수자시파기측량단차맥충폭도시，존재측량불학정도대적결점。대고채양솔수자전압표원리화맥충폭도준학측량원리진행대비분석，제출료이용고채양솔수자전압표진행정학측량단차맥충폭도적방법，병대해방법진행료구체천술，득출측량결과불학정도위3×10-4。해측량방법준학도고，측량범위관，측량성본저，구유교호적응용전경。
Digital oscilloscopes can measure single pulse amplitude, whereas their application is limited by their large uncertainty. The principles of high sample digital multimeter and method of exact single pulse amplitude measurement are analyzed. An optimized method of precise pulse amplitude measurement is proposed by using high sample digital multimeter. The method is depicted in detail, and the uncertainty components concerning the result of pulse amplitude measurement are analyzed. A relative low uncertainty of 3×10-4 is obtained. The proposed method bears the advantages like high accuracy, wide measurement range, and a low cost, therefore it has a good application prospective.
