US 12,259,307 B2
Method and measuring apparatus for investigating the hydrogen permeability of a test object
Armin Manhard, Garching (DE); Malte Stienecker, Garching (DE); and Udo Von Toussaint, Garching (DE)
Assigned to Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V., Munich (DE)
Appl. No. 17/922,231
Filed by Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e. V., Munich (DE)
PCT Filed Apr. 30, 2021, PCT No. PCT/EP2021/061391
§ 371(c)(1), (2) Date Oct. 28, 2022,
PCT Pub. No. WO2021/224124, PCT Pub. Date Nov. 11, 2021.
Claims priority of application No. 102020111959.3 (DE), filed on May 4, 2020.
Prior Publication US 2023/0175946 A1, Jun. 8, 2023
Int. Cl. G01N 15/08 (2006.01); G01M 3/22 (2006.01); G01N 33/00 (2006.01)
CPC G01N 15/0806 (2013.01) [G01N 33/005 (2013.01); G01N 2015/0866 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method for testing a hydrogen permeability of a test object, comprising the following steps:
provision of a sensor device on a first side of the test object,
application of a test gas including hydrogen to a second side of the test object, and
detection of permeating hydrogen passing through the test object from the second side to the first side with the sensor device, wherein:
the sensor device comprises at least one hydrogen-absorbing sensor layer,
the detection of the permeating hydrogen comprises a detection of a change of state of the at least one sensor layer, and
the permeating hydrogen is detected with spatial resolution.