公开(公告)号：WO2017003648A8

公开(公告)日：2017-02-16

申请号：PCT/US2016036140

申请日：2016-06-07

Applicant: ROSEMOUNT INC

Inventor： KITZMAN ANDREW JOHN ,  KIENITZ SASCHA ULRICH ,  RUD JASON HAROLD

IPC: G01J5/00 ,  G01J5/06

CPC classification number: G01J5/048 ,  G01J5/0037 ,  G01J5/061 ,  G01J5/0803 ,  G01J5/10 ,  G01J2005/065

Abstract: A thermowell assembly for measuring a process temperature includes an elongate thermowell (20) having a proximal end (70) and a distal end (72). A bore (74) extends between the two ends with the thermowell assembly configured to extend into a process fluid. An infrared sensor (24) detects infrared radiation from the distal end (70) through the bore (74) of the thermowell (20) and responsively provides a sensor output (26). A configuration is provided in which infrared radiation received by the infrared sensor (24) from a wall of the bore (76) is reduced and/or radiation received from the distal end (70) of the bore is increased.

Abstract translation: 用于测量工艺温度的热套管组件包括具有近端（70）和远端（72）的细长热电偶套管（20）。 孔（74）在两端之间延伸，热套管组件构造成延伸到工艺流体中。 红外传感器（24）通过热套管（20）的孔（74）检测来自远端（70）的红外辐射，并且响应地提供传感器输出（26）。 提供了一种配置，其中红外传感器（24）从孔（76）的壁接收的红外辐射被减少，并且/或从孔的远端（70）接收的辐射增加。