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公开(公告)号:US20040223718A1
公开(公告)日:2004-11-11
申请号:US10784107
申请日:2004-02-20
Applicant: Rosemount Inc.
Inventor: Mark G. Romo , Stanely E. Rud JR. , Charles R. Willcox , Robert J. Karschnia
IPC: G02B006/00
CPC classification number: G02B6/266 , G02B6/3502 , G02B6/3508 , G02B6/3552 , G02B6/3564 , G02B6/357 , G02B6/3572 , G02B6/3576 , G02B6/3582 , G02B6/3584 , G02B6/3586 , G02B6/3588 , G02B6/3594
Abstract: An electrically variable optical attenuator and associated methods are disclosed. In one aspect, the attenuator includes at least one sensor that provides a sensor output with respect to a variable that affects attenuation. Methods of characterizing the attenuator include obtaining a set of attenuation/sensed variable data, and generating a relationship (such as a look-up table or mathematical function) relating the sensed variable to the attenuation. Aspects of the invention also include characterizing the control input/attenuation output to be related by a selected mathematical function.
Abstract translation: 公开了一种电可变光衰减器及相关方法。 在一个方面,衰减器包括至少一个传感器,其相对于影响衰减的变量提供传感器输出。 表征衰减器的方法包括获得一组衰减/感测的可变数据,以及产生将感测的变量与衰减相关联的关系(诸如查找表或数学函数)。 本发明的方面还包括通过选择的数学函数来表征控制输入/衰减输出。