公开(公告)号：US20230081114A1

公开(公告)日：2023-03-16

申请号：US17897442

申请日：2022-08-29

Applicant: Futaba Corporation

Inventor： Satoshi IDE ,  Keisuke TAKATA ,  Fumitaka MIYAO ,  Kazuki IMAJO

IPC: G01L1/14 ,  G06F3/044

Abstract: A capacitive pressure sensor (1) using mutual capacitance type is provided. The capacitive pressure sensor (1) comprises a dielectric layer (2), a ground electrode (3), transmission electrodes (4), reception electrodes (5) and a controller (6). The transmission electrodes and reception electrodes have a matrix structure (FIG. 3). An electric field is generated between the transmission electrodes and the reception electrodes by the controller. When the dielectric layer is deformed by a pressure applied to the ground electrode, a capacitance of the dielectric layer changes. The controller detects the unit detection area (10) where the capacitance changes and the pressure corresponding to the change in the capacitance.