US 11,965,788 B2
Pressure sensor and electronic terminal
Hao Li, Guangdong (CN); and Tuoxia Huang, Guangdong (CN)
Assigned to SHENZHEN NEW DEGREE TECHNOLOGY CO., LTD., Shenzhen (CN)
Appl. No. 17/416,433
Filed by SHENZHEN NEW DEGREE TECHNOLOGY CO., LTD., Guangdong (CN)
PCT Filed Dec. 20, 2018, PCT No. PCT/CN2018/122313
§ 371(c)(1), (2) Date Jun. 18, 2021,
PCT Pub. No. WO2020/124476, PCT Pub. Date Jun. 25, 2020.
Prior Publication US 2022/0074799 A1, Mar. 10, 2022
Int. Cl. G01L 1/22 (2006.01); G01L 5/22 (2006.01)
CPC G01L 1/2262 (2013.01) [G01L 5/22 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A pressure sensor, comprising:
an upper substrate attached to an object being tested and a force transmission structure connected to the upper substrate, the force transmission structure comprising a first elastomer and a second elastomer arranged alternately in sequence, wherein the first elastomer and second elastomer are abutted against each other, and rigidity of the second elastomer is lower than rigidity of the first elastomer; and
a pressure measuring circuit provided with at least two resistors, at least one of the resistors provided at a position of the upper substrate corresponding to the second elastomer, and the at least one of the resistors is a strain sensing resistor configured to detect deformation of the second elastomer.