公开(公告)号：US11668595B1

公开(公告)日：2023-06-06

申请号：US17471589

申请日：2021-09-10

申请人： Consolidated Nuclear Security, LLC

发明人： Justin M. Holland ,  Deandra J. Peoples ,  Stephen R. Bennett ,  Benjamin D. Green

IPC分类号： G01F23/24 ,  G01N27/07

CPC分类号： G01F23/241 ,  G01F23/242 ,  G01N27/07

摘要： A fluid level and conductivity sensor having a sensing probe with four electrodes disposed therein particularly suited for high temperature applications. A distal end of the second and third electrodes are positioned a distance from the sensing end that is greater than distal ends of the first and fourth electrodes. The sensor includes an electronics system having a signal relay system for receiving signals from each of the electrodes and switching between different measurement modes by determining a resistance between selected pairs of electrodes based on instructions from the microcontroller. The measurement modes include a conductivity measurement mode in which a resistance between the first and fourth electrodes is determined, and a fluid level measurement mode in which a resistance between the first and third electrodes is determined and compared to a resistance between the second and third electrodes.