Patent ID: 11920987
Assignee: INSITU, INC.
Field: Measurement (Instruments)
Classification: CPC G  F | IPC F  G

Claim 0:
1. A temperature probe for measuring a fluid temperature, comprising:
a sonde base forming an interior volume and having a distal end;
a sonde sensor having a distal end and a proximal end, wherein said sonde sensor is connected to or passes through said sonde base distal end;
a first temperature sensor positioned at the distal end of the sonde base to sense the temperature of the fluid;
a second temperature sensor positioned in the interior volume of said sonde base;
a thermal barrier thermally positioned between said first temperature sensor and said sonde base to thermally isolate the first temperature sensor from the sonde base thermal mass; and
a processor operably connected to said first temperature sensor and to said second temperature sensor, wherein during use for the fluid that is a liquid, said processor receives a first temperature output from said first temperature sensor and a second temperature output from said second temperature sensor and determines a liquid temperature of the surrounding liquid environment;, wherein said processor determines the liquid temperature based on the formula:, T
   Fluid
  
  =
  
   
    
     
      R
      1
     
     
      R
      2
     
    
    *
    
     (
     
      
       T
       1
      
      -
      
       T
       2
      
     
     )
    
   
   +
   
    T
    1
   
  
 

wherein:
TFluid is the liquid temperature,
T1 is said first temperature output from said first temperature sensor,
T2 is said second temperature output from said second temperature sensor,
R1 is a thermal resistivity between said first temperature sensor and said fluid; and
R2 is a thermal resistivity between said first temperature sensor and said second temperature sensor; and
wherein said first temperature sensor is separated from said sonde base by a separation distance.