回复gaoshanliuyun发表于:2020/10/19 22:11:37悬赏金额:
100积分 状态:
未解决
最近在按照JJG700-2016做瓦里安GC450的期间核查,其中包括计算ECD、FID的基线噪声、漂移,但是对于具体计算步骤和方法不太确定。之前看了其他网友讨论类似问题的帖子,但是回复中理论居多,实际操作不足,因此今天把仪器走的30min内ECD、FID基线截图发上来,请大家给实际计算下这两个的基线噪声、漂移。
1、这是ECD、FID检定标准
[img=""标准"style='background:url(https://yibanbianji.com/libs/ueditor/themes/default/images/word.gif)"style='background:url(https://yibanbianji.com/libs/ueditor/themes/default/images/word.gif)]https://ng1.17img.cn/bbsfiles/images/2020/10/202010192158337252_3545_2358757_3.png!w528x331.jpg[/img]
2、这是JJG中的计算方法。各种检测器方法基本一样
[img=""方法"style='background:url(https://yibanbianji.com/libs/ueditor/themes/default/images/word.gif)"style='background:url(https://yibanbianji.com/libs/ueditor/themes/default/images/word.gif)]https://ng1.17img.cn/bbsfiles/images/2020/10/202010192158462261_9297_2358757_3.png!w690x548.jpg[/img]
3、这是ECD的30min基线截图,横坐标是时间(min),纵坐标是信号(μv)
[img=""ECD"style='background:url(https://yibanbianji.com/libs/ueditor/themes/default/images/word.gif)"style='background:url(https://yibanbianji.com/libs/ueditor/themes/default/images/word.gif)]https://ng1.17img.cn/bbsfiles/images/2020/10/202010192158568665_5415_2358757_3.jpg!w690x231.jpg[/img]
4、这是FID的30min基线截图,横坐标是时间(min),纵坐标是信号(μv)。
[img=""fid"style='background:url(https://yibanbianji.com/libs/ueditor/themes/default/images/word.gif)"style='background:url(https://yibanbianji.com/libs/ueditor/themes/default/images/word.gif)]https://ng1.17img.cn/bbsfiles/images/2020/10/202010192202457465_6311_2358757_3.png!w690x296.jpg[/img]
5、请问ECD基线噪声是______mV?漂移是_____mV? FID基线噪声_____pA?漂移是_____pA?