公开(公告)号：EP3857189A1

公开(公告)日：2021-08-04

申请号：EP18935211.5

申请日：2018-09-28

申请人： Rosemount Inc.

发明人： RUD, Jason H. ,  KRIVONOGOV, Aleksey Aleksandrovich ,  KUZNETSOV, Yuri Nikolaevich ,  GARIPOV, Sait Saitovich ,  FOMCHENKO, Sergey Andreyevich ,  KASSEN, Allen J. ,  WARREN, Kyle S.

IPC分类号： G01K1/14 ,  G01K13/02 ,  G01N25/18

公开(公告)号：EP3408632A1

公开(公告)日：2018-12-05

申请号：EP16888329.6

申请日：2016-01-25

申请人： Rosemount Inc.

发明人： KUZNETSOV, Yuri Nickolayevich ,  RUD, Jason H. ,  GARIPOV, Sait Saitovich ,  KRIVONOGOV, Aleksey Aleksandrovich ,  FOMCHENKO, Sergey Andreyevich ,  REPYEVSKY, Vladimir Victorovich

IPC分类号： G01K1/14 ,  G01K13/02 ,  G01K17/06

CPC分类号： G01N25/18 ,  G01K7/427 ,  G01K13/02

摘要： A process fluid temperature calculation system includes a first temperature sensor disposed to measure an external temperature of a process fluid conduit. The process fluid temperature calculation system has a stem portion having a known thermal impedance. A second temperature sensor is spaced from the first temperature sensor by the stem portion. Measurement circuitry is coupled to the first and second temperature sensors. A microprocessor is coupled to the measurement circuitry to receive temperature information from the measurement circuitry and to provide an estimate of temperature of process fluid within the process fluid conduit using a heat flux calculation.