This guard is driven by a unity-gain, low impedance amplifier.

该保护端由一个单位增益的低阻抗放大器驱动。

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Now this shield is driven by a unity-gain, low impedance amplifier (Guard).

这个屏蔽由一个单位增益的低阻抗放大器(保护)驱动。

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In such cases, the unused amplifier should be connected as a unity-gain follower (force and sense pins tied together) and the input should be connected to ground.

同样的原因，不用的放大器应当成单位增益跟随器(驱动端和感测端接到一起)，且其输入端应接地。

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