期刊刊名：正修學報 　 卷期：29期

篇名出版日期：2016年10月1日

作者：蔡漢彰,陳瑞錡,Han-Chang Tsai,Ruey-Chyi Chen

語言：English

關鍵字：Noise, Harmonic wave, Astable multivibrator, Radiated power, EMI, SNR,雜訊,諧波,不穩態振盪器,輻射能,電磁干擾,訊號雜訊比

被點閱次數：2次

閱讀時間：93sec

摘要：
Theoretical formulae are derived to model the time-domain and frequency-domain characteristics of the noise induced in an astable multivibrator by electromagnetic interference (EMI). The theoretical results are then compared with the experimental measurements. The experimental and numerical results reveal that the magnitude of the EMI-induced noise is related to the pulse height, the output load, the parasitic capacitance, the interference frequency and the interference amplitude. Moreover, it is shown that the harmonic noise increases with an increasing interference amplitude or interference frequency and theresultsof EMI are good agreements to the laser beamsignal.

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