US 12,298,119 B2
Method for checking a wall thickness of a container made of an at least partially transparent material
Stefan Piana, Koefering (DE); and Andreas Stopfer, Regensburg (DE)
Assigned to KRONES AKTIENGESELLSCHAFT, Neutraubling (DE)
Appl. No. 17/756,699
Filed by KRONES AKTIENGESELLSCHAFT, Neutraubling (DE)
PCT Filed Oct. 14, 2020, PCT No. PCT/EP2020/078892
§ 371(c)(1), (2) Date May 31, 2022,
PCT Pub. No. WO2021/110308, PCT Pub. Date Jun. 10, 2021.
Claims priority of application No. 10 2019 132 655.9 (DE), filed on Dec. 2, 2019.
Prior Publication US 2023/0003508 A1, Jan. 5, 2023
Int. Cl. G01B 11/06 (2006.01); G01N 21/90 (2006.01)
CPC G01B 11/0691 (2013.01) [G01B 11/06 (2013.01); G01N 21/9045 (2013.01); G01N 21/9081 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method for checking a wall thickness of a container made of an at least partially transparent material, the method comprising: irradiating the container with a measuring beam of an irradiation device at a plurality of measurement points along a measurement direction, wherein the irradiation device transmits electromagnetic radiation into a wall of the container, wherein for each measurement point, a signal indicative of a wall thickness of the container at the measurement point is obtained by means of an optical detector, wherein by means of an evaluation device, the plurality of measurement points are compared with a reference curve that specifies a wall thickness of a reference container along the measurement direction, wherein if the comparison results in agreement between the plurality of measurement points and the reference curve it is determined that the wall thickness of the container corresponds to a predefined wall thickness and wherein if the comparison does not result in agreement between the plurality of measurement points and the reference curve it is determined that the wall thickness of the container does not correspond to the predefined wall thickness.