安捷伦博文,频率计如何工作
https://community.keysight.com/community/keysight-blogs/general-electronics-measurement/blog/2018/02/26/how-does-a-frequency-counter-work?sf183125262=1想看下全文竟然找不到了:Q https://edadocs.software.keysight.com/kkbopen/how-does-a-frequency-counter-work-583405490.html
找到了更新一下
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