US 12,265,052 B2
Electrochemical sensor with opening between solid elements
Søren Porsgaard, Aarhus N (DK); and Lars Hauer Larsen, Hinnerup (DK)
Assigned to SulfiLogger A/S, Risskov (DK)
Filed by SulfiLogger A/S, Risskov (DK)
Filed on Dec. 23, 2022, as Appl. No. 18/146,301.
Application 18/146,301 is a continuation of application No. 16/317,754, granted, now 11,592,416, previously published as PCT/DK2017/050241, filed on Jul. 14, 2017.
Claims priority of application No. 16179812 (EP), filed on Jul. 15, 2016; application No. 16179814 (EP), filed on Jul. 15, 2016; and application No. 16179815 (EP), filed on Jul. 15, 2016.
Prior Publication US 2023/0137889 A1, May 4, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G01N 27/404 (2006.01); G01N 27/40 (2006.01); G01N 27/407 (2006.01); G01N 27/413 (2006.01); G01N 33/00 (2006.01)
CPC G01N 27/4045 (2013.01) [G01N 27/40 (2013.01); G01N 27/4072 (2013.01); G01N 27/413 (2013.01); G01N 33/0044 (2013.01); G01N 27/404 (2013.01)] 32 Claims
OG exemplary drawing
 
1. An electrochemical sensor comprising:
a first solid element,
a second solid element being joined to the first solid element,
a chamber being placed at least partially between the first solid element and the second solid element,
a working electrode in the chamber,
a reference electrode, and
wherein one or more analyte permeable openings connect the chamber with an associated volume, and wherein the electrochemical sensor further comprises:
an analyte permeable membrane in said one or more analyte permeable openings, wherein the membrane is not permeable to ions,
wherein the one or more analyte permeable openings are placed at least partially between the first solid element and the second solid element,
wherein a ratio between a length of a path through at least one of the one or more analyte permeable openings and a cross-sectional area of the at least one analyte permeable opening, said cross-sectional area being orthogonal to the path through the at least one analyte permeable opening, is equal to or more than 0.1 1/micrometer and not more than 100 1/micrometer, and
wherein the electrochemical sensor is configured to detect hydrogen (H2).