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1. (WO2018165841) ULTRATHIN ELECTROCHEMICAL GAS SENSOR

Pub. No.:    WO/2018/165841    International Application No.:    PCT/CN2017/076567
Publication Date: Fri Sep 21 01:59:59 CEST 2018 International Filing Date: Wed Mar 15 00:59:59 CET 2017
IPC: G01N 27/407
Applicants: HONEYWELL INTERNATIONAL INC.
MU, Qinghui
LIU, Ling
Inventors: MU, Qinghui
LIU, Ling
Title: ULTRATHIN ELECTROCHEMICAL GAS SENSOR
Abstract:
An electrochemical sensor (100) is provided. The electrochemical senor (100) has a substrate (102), a plurality of electrodes (104, 105, 106) disposed on a first surface of the substrate (102), an electrolyte (103) disposed over at least a portion of each electrode of the plurality of electrodes (104, 105, 106), and one or more capillaries (113) disposed through the substrate (102), wherein the one or more capillaries (113) are configured to provide a diffusion pathway for a target gas to pass from an exterior of the sensor to one or more of the plurality of electrodes (104, 105, 106), and wherein the ratio of the length or width of the substrate (102) to the diameter of the one or more capillaries (113) is greater than approximately 30.