According to orthogonal experiment the synthesis conditions of wideband retarder are as following : the ratio of monomer ( AMPS and maleic ) is 3:1 ; initiator concentration is 0.5 % ; reaction temperature is 45 ℃; pH value is six .

根据正交试验确定 宽带缓凝剂的合成条件：单体（AMPS和顺丁烯二酸）之间的 配比为3：1，引发剂浓度为0.5%，反应温度为45℃，pH值为6。

In the monitoring procedure of optical coating with wideband spectrum based on CCD ( Charge Couple Device ) the signal-to-noise ratio of monitoring signal is too low to accurately monitoring because it is interfered by the factors of stray light background radiation in vacuum chamber etc.

使用CCD（电荷耦合器）进行光学镀膜 宽光谱监控过程中，监测信号受外界杂散光干扰、真空室内背景辐射等因数影响，信噪 比低难于准确监控。

The sharp edge filtered output of approximating wideband was realized by adding interference orders adjusting the interference length of the two pairs of interference arms and coupling ratio of the coupler .

通过增加干涉级数和调整2对干涉臂的干涉长度和耦合器的耦合 比，实现了逼近 宽带陡沿的滤波输出。