公开(公告)号：US11085589B2

公开(公告)日：2021-08-10

申请号：US16985407

申请日：2020-08-05

Applicant: Rosemount Inc.

Inventor： Jason H. Rud ,  Steven R. Trimble

IPC: G01N25/00 ,  G01K1/00 ,  G01K13/00 ,  F17D5/06 ,  E03B7/07 ,  G01K1/16 ,  G01N25/18 ,  G01N17/00 ,  E03B7/00 ,  F16L101/12

Abstract: A pipe diagnostic system includes a sensor capsule, measurement circuitry and a controller. The sensor capsule is configured to be coupled to an exterior surface of a pipe and has at least one temperature sensitive element disposed therein. The measurement circuitry is coupled to the sensor capsule and is configured to measure an electrical characteristic of the at least one temperature sensitive element and provide an indication of the measurement. The controller is coupled to the measurement circuitry and is configured to obtain a transmitter reference measurement and employ a heat transfer calculation with the transmitter reference measurement and the indication to generate an estimated process fluid temperature. The controller is further configured to obtain an indication of process fluid temperature and provide a pipe diagnostic indication based on a comparison of the estimated process fluid temperature and the obtained indication of process fluid temperature.

公开(公告)号：US10760742B2

公开(公告)日：2020-09-01

申请号：US15934101

申请日：2018-03-23

Applicant: Rosemount Inc.

Inventor： Jason H. Rud ,  Steven R. Trimble

IPC: G01N17/00 ,  G01N25/00 ,  G01K7/16 ,  F17D5/06 ,  E03B7/07 ,  G01K1/16 ,  G01N25/18 ,  E03B7/00 ,  F16L101/12

Abstract: A pipe diagnostic system includes a sensor capsule, measurement circuitry and a controller. The sensor capsule is configured to be coupled to an exterior surface of a pipe and has at least one temperature sensitive element disposed therein. The measurement circuitry is coupled to the sensor capsule and is configured to measure an electrical characteristic of the at least one temperature sensitive element and provide an indication of the measurement. The controller is coupled to the measurement circuitry and is configured to obtain a transmitter reference measurement and employ a heat transfer calculation with the transmitter reference measurement and the indication to generate an estimated process fluid temperature. The controller is further configured to obtain an indication of process fluid temperature and provide a pipe diagnostic indication based on a comparison of the estimated process fluid temperature and the obtained indication of process fluid temperature.

公开(公告)号：US20190293241A1

公开(公告)日：2019-09-26

申请号：US15934101

申请日：2018-03-23

Applicant: Rosemount Inc.

Inventor： Jason H. Rud ,  Steven R. Trimble

IPC: F17D5/06 ,  E03B7/07 ,  G01K1/16 ,  G01N17/00 ,  G01N25/18

Abstract: A pipe diagnostic system includes a sensor capsule, measurement circuitry and a controller. The sensor capsule is configured to be coupled to an exterior surface of a pipe and has at least one temperature sensitive element disposed therein. The measurement circuitry is coupled to the sensor capsule and is configured to measure an electrical characteristic of the at least one temperature sensitive element and provide an indication of the measurement. The controller is coupled to the measurement circuitry and is configured to obtain a transmitter reference measurement and employ a heat transfer calculation with the transmitter reference measurement and the indication to generate an estimated process fluid temperature. The controller is further configured to obtain an indication of process fluid temperature and provide a pipe diagnostic indication based on a comparison of the estimated process fluid temperature and the obtained indication of process fluid temperature.

公开(公告)号：US20180003655A1

公开(公告)日：2018-01-04

申请号：US15196569

申请日：2016-06-29

Applicant: Rosemount Inc.

Inventor： Jason H. Rud ,  Steven R. Trimble

IPC: G01N25/18 ,  G01K1/08 ,  G01K1/02

CPC classification number: G01N25/18 ,  G01K1/024 ,  G01K1/08 ,  G01K13/02 ,  G01K17/00

Abstract: A process fluid temperature measurement system includes a thermowell configured to couple to a process fluid conduit and extend through a wall of the process fluid conduit. A temperature sensor assembly is disposed within the thermowell and includes a first temperature sensitive element and a second temperature sensitive element. The first temperature sensitive element is disposed within the thermowell adjacent a distal end of the thermowell. The second temperature sensitive element is spaced apart from the first temperature sensitive element along a spacer having a known thermal conductivity. Transmitter circuitry is coupled to the first and second temperature sensitive elements and is configured to perform a heat flux calculation to provide a process fluid temperature output.