此类检测器的灵敏度可达几十到几百库仑/克，最小检测量可达10-11克。
The sensitivity of such detectors can reach tens to hundreds of coulombs / gram, the minimum detection of up to 10-11 grams.
与单检测器相比，平衡式检测具备更高的灵敏度，因为这种检测方式拒绝共模噪声，而且光能利用率更高。
Balanced detection provides better sensitivity over a single detector because it rejects common mode noise and is more efficient in light usage.
这种光电检测器采用了调制光和4脉冲同步解调技术，提高了光电检测的可靠性和灵敏度。
This detector has adopted modulated light and 4 pulse synchronous demodulating technique. So the detecting reliability and sensitivity are improved greatly.
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