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FS-4型锁定分析器能迅速、方便地同时测量微弱信号的同相与正交分量或振幅与相位分量,测量频率范围为1Hz到100kHz,满刻度灵敏度范围为100mV到10nV。而且,它有在宽带噪声或其他干扰中检测信号频率的能力,即使信号频率作缓慢变化也能进行检测。本文介绍了它的原理与特点。
The FS-4 Lock Analyzer quickly and easily measures in-phase and quadrature components or amplitude and phase components of weak signals simultaneously at 1Hz to 100kHz with full-scale sensitivity ranging from 100mV to 10nV. Moreover, it has the ability to detect signal frequencies in broadband noise or other disturbances, allowing detection even at slow changes in signal frequency. This article describes its principles and features.