公开(公告)号：US10054685B2

公开(公告)日：2018-08-21

申请号：US14408392

申请日：2013-06-14

Applicant: NIPRO CORPORATION

Inventor： Ryoichi Fukasawa ,  Shigenori Tominaga

IPC: G01S17/02

CPC classification number: G01S17/026 ,  G01N21/3581 ,  G01N21/3586 ,  G01N21/85

Abstract: A foreign matter detecting apparatus includes an oscillating unit, an optical system, a receiving unit, a scanning mechanism, and an operator. The oscillating unit generates a terahertz pulse wave and emits the terahertz pulse wave as irradiation light. The optical system guides the irradiation light to the first part of the container and condenses reflected light from the container. The receiving unit outputs a signal corresponding to the condensed reflected light and also measures an echo. The scanning mechanism scans a position of the irradiation light guided on the first part in a two-dimensional manner. The operator detects foreign matter in powder in a container based on at least one of a time waveform signal, a reflection image, a power spectrum, a tomographic image, and a frequency image. The time waveform signal is output from the receiving unit in chronological order.

公开(公告)号：US20150234047A1

公开(公告)日：2015-08-20

申请号：US14408392

申请日：2013-06-14

Applicant: NIPRO CORPORATION

Inventor： Ryoichi Fukasawa ,  Shigenori Tominaga

IPC: G01S17/02

CPC classification number: G01S17/026 ,  G01N21/3581 ,  G01N21/3586 ,  G01N21/85

Abstract: A foreign matter detecting apparatus includes an oscillating unit, an optical system, a receiving unit, a scanning mechanism, and an operator. The oscillating unit generates a terahertz pulse wave and emits the terahertz pulse wave as irradiation light. The optical system guides the irradiation light to the first part of the container and condenses reflected light from the container. The receiving unit outputs a signal corresponding to the condensed reflected light and also measures an echo. The scanning mechanism scans a position of the irradiation light guided on the first part in a two-dimensional manner. The operator detects foreign matter in powder in a container based on at least one of a time waveform signal, a reflection image, a power spectrum, a tomographic image, and a frequency image. The time waveform signal is output from the receiving unit in chronological order.

Abstract translation: 异物检测装置包括振荡单元，光学系统，接收单元，扫描机构和操作者。 振荡单元产生太赫兹脉冲波并发射太赫兹脉冲波作为照射光。 光学系统将照射光引导到容器的第一部分并且冷凝来自容器的反射光。 接收单元输出与聚光反射光相对应的信号，并测量回波。 扫描机构以二维方式扫描在第一部分上引导的照射光的位置。 基于时间波形信号，反射图像，功率谱，断层图像和频率图像中的至少一个，操作者在容器中检测粉末中的异物。 时间波形信号从接收单元按时间顺序输出。