US 12,152,948 B2
Pressure sensor comprising sensing thread passing through a through-hole
Won Hyo Kim, Yongin-si (KR); Woo Kyeong Seong, Seongnam-si (KR); Kook Nyung Lee, Seoul (KR); Su Mi Yoon, Anyang-si (KR); Dong Ki Hong, Pyeongtaek-si (KR); Young Joo Kim, Seoul (KR); and Hye Lim Kang, Chungcheongbuk-do (KR)
Assigned to Korea Electronics Technology Institute, Seongnam-si (KR)
Filed by KOREA ELECTRONICS TECHNOLOGY INSTITUTE, Seongnam-si (KR)
Filed on Mar. 1, 2022, as Appl. No. 17/684,156.
Application 17/684,156 is a continuation of application No. PCT/KR2020/008574, filed on Jul. 1, 2020.
Claims priority of application No. 10-2019-0109152 (KR), filed on Sep. 3, 2019.
Prior Publication US 2022/0187144 A1, Jun. 16, 2022
Int. Cl. G01L 1/20 (2006.01); G01L 9/02 (2006.01); G01L 9/12 (2006.01)
CPC G01L 1/20 (2013.01) [G01L 9/02 (2013.01); G01L 9/12 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A pressure sensor comprising:
a base material comprising an upper surface and a lower surface opposing the upper surface in a thickness direction of the base material;
a through-hole formed through the base material so as to extend from the upper surface to the lower surface in the thickness direction of the base material, the base material comprising a first portion and a second portion disposed on opposing sides of the through-hole; and
a sensing thread extending through the through-hole,
wherein the sensing thread comprises:
a first signal line extending along the lower surface of the first portion of the base material,
a second signal line extending along the upper surface of the second portion of the base material, and
two or more sensing portions disposed in the through-hole, each of the two or more sensing portions extending in the thickness direction of the base material in the through-hole, the two or more sensing portions being connected to the first signal line and the second signal line, and
wherein in response to the base material being deformed by a pressure applied thereto, the two or more sensing portions are configured to:
be deformed together with the base material, which causes a change in electrical resistance or capacitance of the sensing thread, and
measure the pressure based on the change in the electrical resistance or capacitance of the sensing thread.