公开(公告)号：US20200292478A1

公开(公告)日：2020-09-17

申请号：US16811842

申请日：2020-03-06

申请人： Ecolab USA Inc.

发明人： Mita Chattoraj ,  Michael J. Murcia ,  Alexander P. Mantis ,  Craig W. Myers

IPC分类号： G01N25/00 ,  G01N17/00 ,  G01K13/00 ,  G01K7/18

摘要： A method for characterizing a process fluid comprising applying electrical power to a first resistance temperature detector (RTD) in contact with a fluid to increase the temperature of the first RTD; allowing the first RTD to cool toward a fluid equilibrium temperature; analyzing the temperature decay profile of the first RTD over time to determine thermal characteristics; applying electrical power to a second RTD in contact with the fluid to increase the temperature of the second RTD; allowing the second RTD to cool toward the fluid equilibrium temperature; analyzing the temperature decay profile of the second RTD over time to determine thermal characteristics; comparing the thermal characteristics of the first and second RTD to determining one or more characteristics of the fluid based; and performing a corrective action. The first RTD has a first coating and the second RTD has a second coating different than the first coating.

公开(公告)号：US11953458B2

公开(公告)日：2024-04-09

申请号：US16811842

申请日：2020-03-06

申请人： Ecolab USA Inc.

发明人： Mita Chattoraj ,  Michael J. Murcia ,  Alexander P. Mantis ,  Craig W. Myers

IPC分类号： G01K7/18 ,  G01K13/00 ,  G01N17/00 ,  G01N25/00 ,  G01K1/12

CPC分类号： G01N25/00 ,  G01K7/18 ,  G01K13/00 ,  G01N17/00 ,  G01K1/12

摘要： A method for characterizing a process fluid comprising applying electrical power to a first resistance temperature detector (RTD) in contact with a fluid to increase the temperature of the first RTD; allowing the first RTD to cool toward a fluid equilibrium temperature; analyzing the temperature decay profile of the first RTD over time to determine thermal characteristics; applying electrical power to a second RTD in contact with the fluid to increase the temperature of the second RTD; allowing the second RTD to cool toward the fluid equilibrium temperature; analyzing the temperature decay profile of the second RTD over time to determine thermal characteristics; comparing the thermal characteristics of the first and second RTD to determining one or more characteristics of the fluid based; and performing a corrective action. The first RTD has a first coating and the second RTD has a second coating different than the first coating.