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雙折射材料的溫度修正

雙折射材料的溫度修正 Birefringent Material Temperature Modification

 

目前，F(xiàn)RED尚不支持“global”溫度設(shè)置，溫度敏感性評(píng)估一般用腳本編程來(lái)完成，該文檔演示雙折射材料的折射率隨溫度變化的問(wèn)題。附件案例文件包括兩個(gè)雙折射材料模，“KDP”和 “KDP Baseline”， KDP Baseline材料存儲(chǔ)在已知溫度下的折射率，KDP材料用于儲(chǔ)存在“current”溫度下的折射率值，定義為與baseline material之間的溫度差。一個(gè)嵌入的腳本名為“modifyBirefringentMaterialIndex” ，包含在FRED文件中，另外也單獨(dú)附加。其實(shí)現(xiàn)過(guò)程如下：

 

1.Retrieve the node numbers for the two materials, KDP and KDP Baseline 

 

2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline 

 

3.Loop over the baseline material samples and determine the number of wavelength entries 

 

4.Loop over each sampled wavelength entry in the baseline material 

 

a.Modify the ordinary and extraordinary refractive index values using (2) above 

 

b.Apply the modified values to the non-baseline material 

 

5.Set a description on the non-baseline material indicating the temperature change from baseline 

 

腳本編程及GUI例程請(qǐng)下載鏈接：

 

 http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs