公开(公告)号：US20220357145A1

公开(公告)日：2022-11-10

申请号：US17869905

申请日：2022-07-21

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Keisuke NISHIMOTO ,  Hidekazu KANO ,  Shiori NAGAMORI

IPC: G01B7/30

Abstract: An electronic device is provided that includes a first body, a second body having a structure that rotates with respect to the first body about a central axis, a first sensor that outputs a first detection signal having a first output value indicating that an open angle formed by the first body and the second body is a reference angle, a second sensor that outputs a second detection signal having a second output value that changes under an influence of a change in the open angle, and a control unit that calculates the open angle based on the first detection signal and the second detection signal.

公开(公告)号：US20220244114A1

公开(公告)日：2022-08-04

申请号：US17660106

申请日：2022-04-21

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yuuki TACHIBANA ,  Shiori NAGAMORI

IPC: G01L1/16 ,  G01L25/00 ,  G09F9/30

Abstract: A bending sensor is provided that includes a piezoelectric element disposed on a bendable substrate; a voltage detection circuit that detects a voltage generated in the piezoelectric element; and an arithmetic unit that calculates an integrated value by integrating the voltage detected by the voltage detection circuit and associates the integrated value with a bent state of the substrate. Moreover, the arithmetic unit calculates in advance a corrected integrated value obtained by correcting a maximum value of the integrated value with a decrease value resulting from a stress relieving effect, associates the corrected integrated value with a first bent state of the substrate, and normalizes a calculated integrated value based on the corrected integrated value.