通过90度移相电路和两路相敏检波电路实现了对探头信号进行二维提取。
The sensor's signal is decomposed to two signals by circuit of 90 degree move-phase and two circuits of phase-sensitive detecting rectification.
电路(100)包括：倒相级(120)，连接在第一导体(101)与第二导体(102)之间。
The circuit (100) comprises an inverter stage (120), connected in between the first conductor (101) and the second conductor (102).
切换电路提供在至少两个偏移采样时刻 期间的第一相电流波形，且提供在参考采样时刻期间的第二相电流波 形。
The switching circuitry provides the first phase current waveform during at least two offset sampling instants, and provides the second phase current waveform during a reference sampling instant.
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