The term 'lie detector' is a common term but not really an accurate.

测谎仪这一术语非常常见不过却不太严谨。

youdao

Balanced detection provides better sensitivity over a single detector because it rejects common mode noise and is more efficient in light usage.

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。

youdao

Well, how is this different from a lie detector test... which is quite common now?

好的，这与现在相当普遍的测谎仪测试有什么不同呢？

youdao

If a detector has more than a certain number (currently 12) of contiguous bits in common with a passing packet, the detector is deleted, and a new detector is generated to replace it.

ECONOMIST: A thousand ills require a thousand cures