公开(公告)号：US20150276491A1

公开(公告)日：2015-10-01

申请号：US14224814

申请日：2014-03-25

Applicant: Rosemount Inc.

Inventor： Jason Harold Rud

IPC: G01J5/10

CPC classification number: G01J5/10 ,  G01J2005/0077 ,  G01N25/72

Abstract: A diagnostic field device for detecting a condition of a process conduit includes an infrared detector comprising a plurality of pixels configured to receive infrared radiation from the process conduit and responsively provide a plurality of pixel outputs. A first pixel of the plurality of pixels is configured to receive infrared radiation from a first location on the process conduit. A second pixel of the plurality of pixels is configured to receive infrared radiation from a second location on the process conduit. A memory contains thermal profile information which relates an output from the first pixel to a first temperature at the first location and relates an output from the second pixel to a second temperature at the second location. A microprocessor identifies a process anomaly based upon outputs from the first and second pixels. Output circuitry provides a diagnostic output indicative of the identified process anomaly.

Abstract translation: 用于检测过程管道的状况的诊断现场设备包括红外检测器，其包括多个像素，所述多个像素被配置为接收来自过程管道的红外辐射并且响应地提供多个像素输出。 多个像素中的第一像素被配置为从处理导管上的第一位置接收红外辐射。 多个像素中的第二像素被配置为从处理导管上的第二位置接收红外辐射。 存储器包含热分布信息，其将来自第一像素的输出与第一位置处的第一温度相关联，并将来自第二像素的输出与第二位置处的第二温度相关联。 微处理器基于来自第一和第二像素的输出识别过程异常。 输出电路提供指示识别过程异常的诊断输出。