公开(公告)号：US20230304983A1

公开(公告)日：2023-09-28

申请号：US18187664

申请日：2023-03-22

Applicant: Asahi Kasei Microdevices Corporation

Inventor： Yuta TAKAGI ,  Naoya UGOMORI

IPC: G01N33/00 ,  H05K7/20

CPC classification number: G01N33/0073 ,  H05K7/20209 ,  G01N21/3504

Abstract: Provided are a gas sensor system, a gas sensor control device, and a control method that enable high-accuracy measurement without causing a user to wait. The gas sensor system (1) includes: a reception section (30) that receives a startup signal from externally to the gas sensor system; a gas sensor (10) that performs concentration measurement of a measurement target gas in air; an air intake port (11) and an air discharge port (12) that are connected to the gas sensor; at least one fan (13); and a control device (20) that starts up the gas sensor through reception of the startup signal, that acquires temperature information for the gas sensor, and that, based on the temperature information for the gas sensor, performs cooling control of operating the fan so as to cool the gas sensor from startup of the gas sensor, before initiation of the concentration measurement.

公开(公告)号：US20200309752A1

公开(公告)日：2020-10-01

申请号：US16828957

申请日：2020-03-25

Applicant: Asahi Kasei Microdevices Corporation

Inventor： Yuta TAKAGI

IPC: G01N33/00 ,  G01N21/3504

Abstract: A light emitting and receiving apparatus includes a controller and a calculator. The controller acquires a first detection current from a light-receiving element when supplying a first drive current to a light-emitting element and acquires a second detection current from the light-receiving element when supplying a second drive current to the light-emitting element. The calculator generates a signal indicating deterioration of the light-emitting element when a reference value and an aging value satisfy a deterioration judgment condition, the aging value being a ratio between the first detection current and the second detection current. The detection accuracy of the light emitting and receiving apparatus is thereby improved.