US 12,455,203 B2
Pressure sensor apparatus having a viscoelastic separation layer between a first pressure sensor and a second pressure sensor
Ken Kobayashi, Kanagawa (JP); Kei Tsukamoto, Kanagawa (JP); Yoshiaki Sakakura, Kanagawa (JP); Tetsuro Goto, Tokyo (JP); and Akira Ebisui, Kanagawa (JP)
Assigned to Sony Group Corporation, Tokyo (JP)
Appl. No. 18/252,402
Filed by SONY GROUP CORPORATION, Tokyo (JP)
PCT Filed Jun. 10, 2021, PCT No. PCT/JP2021/022097
§ 371(c)(1), (2) Date May 10, 2023,
PCT Pub. No. WO2022/107369, PCT Pub. Date May 27, 2022.
Claims priority of application No. 2020-190916 (JP), filed on Nov. 17, 2020.
Prior Publication US 2023/0408355 A1, Dec. 21, 2023
Int. Cl. G01L 5/165 (2020.01); B25J 19/02 (2006.01); G01L 5/22 (2006.01)
CPC G01L 5/165 (2013.01) [B25J 19/02 (2013.01); G01L 5/226 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A sensor apparatus, comprising:
a sensor section that includes a first pressure sensor situated on a front side of the sensor section, and a second pressure sensor situated on a rear side of the sensor section, the first pressure sensor and the second pressure sensor facing each other, the sensor section detecting a force applied in an in-plane direction, on a basis of a pressure detection position, in the in-plane direction, at which pressure is detected by the first pressure sensor, and on a basis of a pressure detection position, in the in-plane direction, at which pressure is detected by the second pressure sensor;
a separation layer that is arranged between the first pressure sensor and the second pressure sensor, the separation layer being made of a viscoelastic material that is deformed by a load applied to the first pressure sensor; and
a first viscoelastic body layer that is arranged on a front surface of the first pressure sensor, the first viscoelastic body layer being made of a viscoelastic material that is deformable on the first pressure sensor in the in-plane direction.