US 11,788,905 B2
Capacitance sensor
Ryusuke Ishizaki, Wako (JP); Mirza Saquib Sarwar, Vancouver (CA); and John D. W. Madden, Vancouver (CA)
Assigned to Honda Motor Co., Ltd., Tokyo (JP); and The University of British Columbia, Vancouver (CA)
Filed by HONDA MOTOR CO., LTD., Tokyo (JP); and The University of British Columbia, Vancouver (CA)
Filed on Dec. 30, 2021, as Appl. No. 17/565,741.
Claims priority of application No. 2021-000621 (JP), filed on Jan. 5, 2021.
Prior Publication US 2022/0214232 A1, Jul. 7, 2022
Int. Cl. G01L 1/14 (2006.01); G01L 5/165 (2020.01); G06F 3/044 (2006.01)
CPC G01L 1/142 (2013.01) [G01L 1/146 (2013.01); G01L 5/165 (2013.01); G06F 3/0445 (2019.05); G06F 3/0447 (2019.05)] 5 Claims
OG exemplary drawing
 
1. A capacitance sensor comprising:
an elastically deformable base material formed of a dielectric;
at least one first electrode arranged in contact with the base material;
at least one second electrode that is in contact with the base material, is arranged to be separated from the first electrode in a thickness direction of the base material in a state where the base material is interposed between the first electrode and the second electrode, and is arranged to have a portion overlapping with the first electrode when viewed in a direction of spacing from the first electrode; and
a first electrode-side wiring line and a second electrode-side wiring line connected to the first electrode and the second electrode, respectively, wherein
a grounded electrostatic shielding member is arranged in at least one or more of a place between a first wiring portion of the first electrode-side wiring line that moves relative to the second electrode together with the first electrode as the base material elastically deforms and the second electrode, a place between a second wiring portion of the second electrode-side wiring line that moves relative to the first electrode together with the second electrode as the base material elastically deforms and the first wiring portion, and a place between the second wiring portion and the first electrode,
the grounded electrostatic shielding member is plate shaped,
the grounded electrostatic shielding member is provided inside the base material,
the grounded electrostatic shielding member is arranged between the first electrode and the second electrode in a thickness direction of the base material, and
the grounded electrostatic shielding member is arranged in at least one or more of a place between a first wiring portion of the first electrode-side wiring line that moves relative to the second electrode together with the first electrode as the base material elastically deforms and the second electrode, a place between a second wiring portion of the second electrode-side wiring line that moves relative to the first electrode together with the second electrode as the base material elastically deforms and the first wiring portion, and a place between the second wiring portion and the first electrode, and a place between the second wiring portion and the first wiring portion.