Alternatively, calibration may be checked using a Polarization Reference Standard, which consists of a plate of quartz mounted in a holder perpendicular to the light path.

或者，校准可以通过使用一个偏振标准品来进行，该标准品由一片装在垂直于右侧通道的架子上的石英构成。

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Using the feedback control technology for reference, a light path of close-loop feedback is done with the pulse laser as control signal.

借鉴反馈控制技术，由脉冲激光控制信号实现光路的闭环反馈。

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