US 11,920,987 B2
Fast response temperature sensors
Benjamin Kimbell, Fort Collins, CO (US); Elijah Lyle Scott, Fort Collins, CO (US); and Nathan T. Baltz, Fort Collins, CO (US)
Assigned to In-Situ, Inc., Ft. Collins, CO (US)
Filed by In-Situ, Inc., Fort Collins, CO (US)
Filed on Nov. 2, 2021, as Appl. No. 17/517,532.
Application 17/517,532 is a continuation of application No. 16/251,651, filed on Jan. 18, 2019, granted, now 11,181,427.
Claims priority of provisional application 62/619,009, filed on Jan. 18, 2018.
Prior Publication US 2022/0163406 A1, May 26, 2022
Int. Cl. G01K 13/02 (2021.01); F01D 17/08 (2006.01); G01K 7/42 (2006.01)
CPC G01K 13/02 (2013.01) [F01D 17/085 (2013.01); G01K 7/42 (2013.01); G01K 13/026 (2021.01)] 17 Claims
OG exemplary drawing
 
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:

OG Complex Work Unit Math
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.