公开(公告)号：US20240151699A1

公开(公告)日：2024-05-09

申请号：US18486297

申请日：2023-10-13

Applicant: TDK Corporation

Inventor： Yoshio KAITA ,  Hiroshi KOBAYASHI ,  Yasuhiro INUI

IPC: G01N33/00 ,  G01K7/24 ,  G01N27/12 ,  G01N27/18

CPC classification number: G01N33/004 ,  G01K7/24 ,  G01N27/124 ,  G01N27/18

Abstract: Disclosed herein is a gas sensor that includes a gas sensor part including first and second thermistors connected in series, a temperature sensor part configured to generate a temperature detection signal, a variable resistor connected in parallel to the first thermistor, and a control circuit configured to change a resistance value of the variable resistor based on the temperature detection signal.

公开(公告)号：US20200100363A1

公开(公告)日：2020-03-26

申请号：US16494809

申请日：2018-03-16

Applicant: TDK Corporation

Inventor： Masafumi KAMI ,  Hiroshi KOBAYASHI ,  Tamon KASAJIMA

IPC: H05K1/18 ,  H01M2/02 ,  H05K1/11

Abstract: A state detecting device which can be applied even in a severe environment. The state detecting device includes a chargeable all-solid-state battery, a piezoelectric element which supplies charging power to the all-solid-state battery, and an integrated circuit including various sensors which operate with electric power supplied from the all-solid-state battery. The all-solid-state battery, the piezoelectric element, and the integrated circuit are mounted on one surface of a flexible substrate. The flexible substrate is attached to a flexible object which is either an object to be measured or constitutes at least part of an inner surface of a space to be measured.