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公开(公告)号：US20190265183A1
公开(公告)日：2019-08-29
申请号：US16276460
申请日：2019-02-14
Applicant: Apple Inc.
Inventor： Michael K. BROWN , Miaolei Yan , Roberto M. Ribeiro
Abstract: A portable communication device may include a gas sensor enclosed in an enclosure, a port to allow flow of air into and out of the enclosure, and a light source disposed on an internal surface of the enclosure. The light source is operable to facilitate generation of ozone gas within the enclosure. The enclosure may contain a heating element that allows baseline calibration of the gas sensor by thermally decomposing ozone gas molecules. The gas sensor includes a miniature gas sensor such as a metal-oxide (MOX) gas sensor.
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