US 12,007,357 B2
Electrochemical sensor
Andreas Löbbert, Waldheim (DE); Michael Hanko, Dresden (DE); and Matthäus Speck, Göpfersdorf (DE)
Assigned to Endress+Hauser Conducta GmbH+Co. KG, Gerlingen (DE)
Filed by Endress+Hauser Conducta GmbH+Co. KG, Gerlingen (DE)
Filed on Oct. 5, 2022, as Appl. No. 17/938,157.
Application 17/938,157 is a division of application No. 16/695,761, filed on Nov. 26, 2019, granted, now 11,486,855.
Claims priority of application No. 10 2018 129 968.0 (DE), filed on Nov. 27, 2018.
Prior Publication US 2023/0026555 A1, Jan. 26, 2023
Int. Cl. G01N 27/416 (2006.01); G01N 27/333 (2006.01); G01N 27/36 (2006.01); G01N 27/40 (2006.01)
CPC G01N 27/4163 (2013.01) [G01N 27/3335 (2013.01); G01N 27/40 (2013.01); G01N 27/4161 (2013.01); G01N 27/36 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method for testing a sensor membrane of an electrochemical sensor or of a membrane cap for an electrochemical sensor, the method comprising:
testing whether the sensor membrane contains an optically detectable substance using an optical detection method, wherein the testing comprises:
exciting the optically detectable substance to emit electromagnetic radiation;
detecting a signal of a radiation receiver configured to receive the emitted radiation from the optically detectable substance contained in the sensor membrane and transducing the emitted radiation into an electrical signal; and
determining whether the sensor membrane contains the optically detectable substance based on the electrical signal; and
estimating a remaining service life of the sensor membrane based on the testing.