公开(公告)号：US20110280277A1

公开(公告)日：2011-11-17

申请号：US12735356

申请日：2009-01-17

申请人： Lee Chung ,  Kalar Kent ,  Mahesh Ajgaonkar ,  Michael Sanders

发明人： Lee Chung ,  Kalar Kent ,  Mahesh Ajgaonkar ,  Michael Sanders

IPC分类号： G01N21/47 ,  G01K3/00 ,  G01K11/32

CPC分类号： G01K11/32

摘要： Systems and methods for extending the range of a fiber optic DTS system are provided. In one respect, a method may provide steps for transmitting, in a first time period, an optical signal at a first energy level through an optical fiber, collecting backscatter signals as a result of the first transmission, adjusting the first energy level to a second energy level, transmitting, in an additional time period, the adjusted optical signal through the optical fiber, collecting backscatter signals as a result of the adjusted transmissions, and using a portion of the collected backscatter as a result of the first transmission and a portion of the collected backscatter as a result of the additional transmissions, determining one or more parameter profiles, such as a temperature profile.

摘要翻译： 提供了用于扩展光纤DTS系统范围的系统和方法。 在一个方面，一种方法可以提供在第一时间段内通过光纤在第一能级发射光信号的步骤，作为第一传输的结果收集反向散射信号，将第一能级调整到第二能级 能量水平，在额外的时间段内通过光纤传输经调整的光信号，作为经调整的传输的结果收集后向散射信号，并且作为第一次传输的结果使用收集的反向散射的一部分， 作为附加传输的结果的收集的反向散射，确定一个或多个参数分布，诸如温度分布。