现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2014年
7期
110-113,117
,共5页
模拟特征分析%自动灵敏度调整%参数优化%高斯-牛顿迭代
模擬特徵分析%自動靈敏度調整%參數優化%高斯-牛頓迭代
모의특정분석%자동령민도조정%삼수우화%고사-우돈질대
analog signature analysis%automatic adjustment of sensitivity%parameter optimization%Gauss-Newton iteration
普通的模拟特征分析测试方法直接根据采集的VI曲线进行故障判定，无法自动调整测试参数，测试人员需要手动调整测试参数，这样严重影响测试工作效率。以容性器件为例，根据模拟特征分析原理建立故障前后信号差异的目标函数，依据被测器件参数利用改进的高斯-牛顿迭代法对测试信号进行自动灵敏度调整，计算机仿真结果表明，该方法有效，且优化参数对电流信号差异的提升尤为明显。
普通的模擬特徵分析測試方法直接根據採集的VI麯線進行故障判定，無法自動調整測試參數，測試人員需要手動調整測試參數，這樣嚴重影響測試工作效率。以容性器件為例，根據模擬特徵分析原理建立故障前後信號差異的目標函數，依據被測器件參數利用改進的高斯-牛頓迭代法對測試信號進行自動靈敏度調整，計算機倣真結果錶明，該方法有效，且優化參數對電流信號差異的提升尤為明顯。
보통적모의특정분석측시방법직접근거채집적VI곡선진행고장판정，무법자동조정측시삼수，측시인원수요수동조정측시삼수，저양엄중영향측시공작효솔。이용성기건위례，근거모의특정분석원리건립고장전후신호차이적목표함수，의거피측기건삼수이용개진적고사-우돈질대법대측시신호진행자동령민도조정，계산궤방진결과표명，해방법유효，차우화삼수대전류신호차이적제승우위명현。
Regular analog signature analysis and testing methods judge failures directly accordiing to the acquired VI curves,but can not automatically adjust the testing parameters,that is,the testers have to adjust the parameters manually. Therefore,it affects the testing efficiency seriously. In this paper,taking the capacitive device as an example,the objective functions of signal difference before and after the fault were established according to the principle of simulation signature analy-sis,and the sensitivity automatical adjustment for the testing signal was conducted by using the improved Gauss-Newton iterative method based on the parameters of a device under test. The computer simulation results show that the method is effective,and the optimization parameter is obviously benefit to current signal difference′s ascension.
