Patent ID: 11964435
Assignee: NANYANG TECHNOLOGICAL UNIVERSITY
Field: Measurement (Instruments)
Classification: CPC B  G  Y | IPC B  G

Claim 9:
10. A system for monitoring a powder bed process in additive manufacturing, the system comprising:
a first contact sensor;
a memory; and
at least one processor communicatively coupled to the memory and the first contact sensor, and configured to:
obtain a first image of a powder bed layer from scanning the powder bed layer in a first scanning direction using the first contact image sensor, the powder bed layer being formed by a powder re-coater arm in the powder bed process and the first contact image sensor being attached to the powder re-coater arm;
determine a focus level property of the first image; and
detect non-uniformities in the powder bed layer based on the focus level property of the first image.