US 12,000,737 B2
Temperature sensor and heater unit
Naoya Kida, Yokohama (JP); Arata Tatsumi, Yokohama (JP); Kenji Sekiya, Yokohama (JP); Naoya Aikawa, Yokohama (JP); and Masaya Takanashi, Yokohama (JP)
Assigned to NHK SPRING CO., LTD., Yokohama (JP)
Filed by NHK SPRING CO., LTD., Yokohama (JP)
Filed on Feb. 1, 2022, as Appl. No. 17/590,780.
Application 17/590,780 is a continuation of application No. PCT/JP2020/028750, filed on Jul. 27, 2020.
Claims priority of application No. 2019-142836 (JP), filed on Aug. 2, 2019.
Prior Publication US 2022/0155156 A1, May 19, 2022
Int. Cl. G01K 7/06 (2006.01); G01K 7/14 (2006.01); H10N 10/00 (2023.01); H10N 10/10 (2023.01); H10N 10/80 (2023.01); G05D 23/22 (2006.01)
CPC G01K 7/06 (2013.01) [H10N 10/00 (2023.02); H10N 10/10 (2023.02); H10N 10/80 (2023.02); G01K 7/14 (2013.01); G05D 23/22 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A temperature sensor comprising:
a block body;
a first thermocouple comprising:
a first strand;
a second strand;
a first insulator surrounding the first strand and the second strand; and
a first metal sheath surrounding the first insulator; and
a second thermocouple comprising:
a third strand;
a fourth strand;
a second insulator surrounding the third strand and the fourth strand; and
a second metal sheath surrounding the second insulator,
wherein an end portion of each of the first thermocouple and the second thermocouple is buried in the block body, and
wherein the second thermocouple has a different measurement temperature range from the first thermocouple.