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本文指出,在光纤传感器中,弱光电信号的检出与放大是重要的。作者采用运算放大器做光电信号放大器,并根据需要来改变其输入阻抗,还采取了一系列防干扰措施,从而有效地取出了弱光电信号,提高了灵敏度和稳定性。
This paper points out that in the optical fiber sensor, weak optical signal detection and amplification is important. The author uses an op amp as a photo-signal amplifier and changes its input impedance as needed. A series of anti-interference measures have also been taken to effectively remove the weak optical signals and improve the sensitivity and stability.