Method and device for monitoring wall thickness

Details Method and device for monitoring wall thickness Method and device for monitoring wall thickness

2006-07-05

2010-12-28

Porta, David P (Department: 2884)

Radiant energy

Invisible radiant energy responsive electric signalling

With means to inspect passive solid objects

Reexamination Certificate

active

07858942

ABSTRACT:
A method for detecting the wall thickness of a container such as a bottle made of PET, for example, in which the absorption of radiation along a first and a second test path of the measurement radiation is ascertained, whereby the test paths intersect the container at two points of intersection such that the two test paths have at least one point of intersection approximately in common. Further, a method for detecting the wall thickness of a container such as a bottle made of PET, for example, such that the wall thickness is detected in the transitional area of a side wall of the container to a bottom area of the container.

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