非侵襲的プロセス流体温度指示

Japanese Patent JP7343576

B2

A process fluid temperature estimation system includes a mounting assembly configured to mount the process fluid temperature estimation system to an external surface of a process fluid conduit. A sensor capsule has at least one temperature sensitive element disposed therein. Measurement circuitry is coupled to the sensor capsule and configured to detect an electrical characteristic of the at least one temperature sensitive element that varies with temperature and provide sensor capsule temperature information. A controller is coupled to the measurement circuitry and is configured to obtain a reference temperature and employ a heat transfer calculation with the reference temperature, the sensor capsule temperature information and the known thermal conductivity of the process fluid conduit to generate an estimated process fluid temperature output. The reference temperature is obtained from a reference temperature source selected from the group consisting of: a terminal temperature sensor, process communication, an electronics temperature sensor, an external ambient temperature sensor, and an estimation based on known thermal properties.

Rudd, Jason H
Stephen Earl, Trimble

JP2021517300A

September 12, 2023

September 25, 2019

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Rosemount Incorporated

G01K1/024; G01K13/02

JP4271229A
JP59103235U
JP61115203U
JP2011522261A
JP2009297829A
JP2018129995A
JP2007263636A
JP200239335A

WO2017131546A1
WO2017094349A1
WO2018138880A1

Patent Attorney Corporation Tsukuni

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