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。