公开(公告)号：US10782229B1

公开(公告)日：2020-09-22

申请号：US16353262

申请日：2019-03-14

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Tobias Nebel ,  Michael Kon Yew Hughes

IPC: G01N21/3586 ,  G01N21/3563

Abstract: A sheet material measurement system includes an optical system for identifying at least a first area of a moving sheet material suspected of including at least one defect. A terahertz (THz) system includes a THz generator for generating a THz beam and a THz detector and a scanner including a scanner head for positioning the THz system over the first area. A computing device is coupled to receive signals sensed by the THz detector after interacting with the first area. The computing device determines whether the first area is a metal-contaminated area including metal particles.

公开(公告)号：US20200292449A1

公开(公告)日：2020-09-17

申请号：US16353262

申请日：2019-03-14

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Tobias Nebel ,  Michael Kon Yew Hughes

IPC: G01N21/3586 ,  G01N21/3563

Abstract: A sheet material measurement system includes an optical system for identifying at least a first area of a moving sheet material suspected of including at least one defect. A terahertz (THz) system includes a THz generator for generating a THz beam and a THz detector and a scanner including a scanner head for positioning the THz system over the first area. A computing device is coupled to receive signals sensed by the THz detector after interacting with the first area. The computing device determines whether the first area is a metal-contaminated area including metal particles.