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11.发明授权公开(公告)号：US11571747B2
公开(公告)日：2023-02-07
申请号：US17655636
申请日：2022-03-21
Applicant: The Penn State Research Foundation
Inventor： Abdalla R. Nassar , Alexander J. Dunbar , Edward W. Reutzel
Abstract: Embodiments of the systems can be configured to receive electromagnetic emissions of a substrate (e.g., a build material of a part being made via additive manufacturing) by a detector (e.g., a multi-spectral sensor) and generate a ratio of the electromagnetic emissions to perform spectral analysis with a reduced dependence on location and orientation of a surface of the substrate relative to the multi-spectral sensor. The additive manufacturing process can involve use of a laser to generate a laser beam for fusion of the build material into the part. The system can be configured to set the multi-spectral sensor off-axis with respect to the laser (e.g., an optical path of the multi-spectral sensor is at an angle that is different than the angle of incidence of the laser beam). This can allow the multi-spectral sensor to collect spectral data simultaneously as the laser is used to build the part.
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12.发明授权公开(公告)号：US11311943B2
公开(公告)日：2022-04-26
申请号：US16540243
申请日：2019-08-14
Applicant: The Penn State Research Foundation
Inventor： Abdalla R. Nassar , Alexander J. Dunbar , Edward W. Reutzel
Abstract: Embodiments of the systems can be configured to receive electromagnetic emissions of a substrate (e.g., a build material of a part being made via additive manufacturing) by a detector (e.g., a multi-spectral sensor) and generate a ratio of the electromagnetic emissions to perform spectral analysis with a reduced dependence on location and orientation of a surface of the substrate relative to the multi-spectral sensor. The additive manufacturing process can involve use of a laser to generate a laser beam for fusion of the build material into the part. The system can be configured to set the multi-spectral sensor off-axis with respect to the laser (e.g., an optical path of the multi-spectral sensor is at an angle that is different than the angle of incidence of the laser beam). This can allow the multi-spectral sensor to collect spectral data simultaneously as the laser is used to build the part.
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公开(公告)号：US09976939B2
公开(公告)日：2018-05-22
申请号：US15223382
申请日：2016-07-29
Applicant: The Penn State Research Foundation
Inventor： Benjamin Hall , Jonathan Lynch , Edward W. Reutzel , Galen Lynch
CPC classification number: G01N1/06 , G01N21/27 , G01N2001/045 , G01N2001/2886 , G06T17/00 , G06T2200/08
Abstract: A laser ablation tomography system includes a specimen stage for supporting a specimen. A specimen axis is defined such that a specimen disposed generally on the axis may be imaged. A laser system is operable to produce a laser sheet in a plane intersecting the specimen axis and generally perpendicular thereto. An imaging system is operable to image the area where the laser sheet intersects the specimen axis.
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公开(公告)号：US20150323431A1
公开(公告)日：2015-11-12
申请号：US14646250
申请日：2013-10-30
Applicant: Benjamin HALL , Jonathan LYNCH , Edward W. REUTZEL , Galen LYNCH , Brian T. HARDT , The Penn State Research Foundation
Inventor： Benjamin Hall , Jonathan Lynch , Edward W. Reutzel , Galen Lynch , Brian T. Reinhardt
CPC classification number: G01N1/44 , G01J3/00 , G01J3/2823 , G01J3/44 , G01J3/443 , G01J2003/106 , G01N1/06 , G01N2001/045 , G01N2001/2886 , G01N2201/06113
Abstract: A laser ablation tomography system includes a specimen stage for supporting a specimen. A specimen axis is defined such that a specimen disposed generally on the axis may be imaged. A laser system is operable to produce a laser sheet in a plane intersecting the specimen axis and generally perpendicular thereto. An imaging system is operable to image the area where the laser sheet intersects the specimen axis.
Abstract translation: 激光烧蚀断层摄影系统包括用于支撑样本的样本台。 样本轴被定义为可以对通常设置在轴上的样本进行成像。 激光系统可操作以在与样本轴线相交并且与其垂直的平面中产生激光片。 成像系统可操作以对激光片与样本轴线相交的区域进行成像。
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