We designed a low-noise, high-precision I-V conversion circuit by use of AD8099 based on the method of weak signal testing.
基于微弱信号检测的方法，设计了应用AD8099实现的一种低噪声、高精度光电转换电路。
However, the signals of eddy current testing are so weak that it is difficult to identify the signals. So more effective signal processing method must be adopted to deal with the weak signals.
然而电涡流检测信号微弱，识别困难，必须采用比较有效的信号处理方法对信号进行处理。
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