Nuctech Company Limited

Tsinghua University

Other

Boe Technology Group Co., Ltd.

Beijing Boe Optoelectronics Technology Co., Ltd.

Yumei Chen

Yaohong Liu

Wei Yin

Xinshui Yan

Zhiqiang Chen

Weiqiang Guan

Yinong Liu

Kejun Kang

Feng Gao

Dan Zhang

Guangquan Wang

Quanwei Song

Huaping Tang

Xuewu Wang

Wei Jia

Fang Zhang

Jinsheng Liu

Zijian Wang

Dongsheng Zhang

Jianjun Gao

Chong Gu

Qinghui Zhang

Huaqiang Zhong

Xiaotian Liang

De Wei

Zhanqing Cao

The present disclosure provides a ray calibration device and a working method thereof, and a radiation imaging system and a working method thereof, and belongs to the field of radiation imaging technology. The present disclosure can solve the problems that the existing calibration devices have low calibration efficiency and require relatively large spaces. The ray calibration device of the present disclosure includes a driving part, a cam part and a calibration part, wherein the calibration part is located below the cam part; the driving part is adapted to drive the cam part to rotate; and the cam part is adapted to exert a force on the calibration part to enable the calibration part to move into a ray area downwards.

Ray calibration device and operating method thereof, and radiation imaging system and operating method thereof

The disclosed technology relates to a ray energy calibration device and method, and a ray imaging system. In one aspect, the ray energy calibration device includes a plurality of wheels arranged to be rotatable about a common shaft and each provided with one or more protruding blocks at respective specific positions of an outer circumference thereof. The ray energy calibration device further includes a plurality of calibration members, with each of the calibration members being configured such that through rotation of a corresponding one of the wheels, the calibration member can be moved to a calibration position by the protruding block at a specific position on the outer circumference of the wheel.

Ray energy calibration device, ray energy calibration method and ray imaging system

A display device, comprising a display panel with a touch control unit, a glass cover plate being positioned at a light emitting side of the display panel, and a light guiding film for buttons being positioned on a side of the glass cover plate facing to the display panel, and further comprising a first flexible circuit board extended to be interposed between the light guiding film for buttons and the display panel, provided with a functional module electrically connected with the light guiding film for buttons and a functional module electrically connected with the touch control unit. A functional module for providing signals to the light guiding film for buttons and a functional module for providing signals to the touch control unit are integrated into one flexible circuit board, so that a thickness of one layer of flexible circuit board is reduced in the thickness direction of the display device.

Display device with flexible circuit board extended to be interposed between light guiding film buttons and display panel

Disclosed are an energy spectrum modulation apparatus, a material discrimination method and a device thereof, as well as an image processing method are disclosed, which can discriminate the material in large- and medium-sized objects such as cargo containers, air cargo containers, etc. by using X-rays having different energy levels. The energy spectrum modulation apparatus comprises a first energy spectrum modulation part for modulating a first ray having a first energy spectrum, and a second energy spectrum modulation part coupled to the first energy spectrum modulation part and for modulating a second ray having a second energy spectrum different from the first energy spectrum. The present invention can be used in the non-opening inspection for large-sized container cargo at places such as Customs, ports and airports.

Energy spectrum modulation apparatus, material discrimination method and device, image processing method

A high-voltage automatic changeover switch, includes a support and a control circuit board mounted on the support. In one embodiment, the support includes an insulating frame, four high-voltage contacts mounted on each of two opposite plates of the insulating frame, four high-voltage contacts on the same plate being pair-to-pair arranged, the high-voltage contacts at the corresponding positions on the two plates being pair-to-pair arranged. A motor is provided on the support, and when switching the high voltages, the control circuit board controls the rotation of the motor to automatically switch the connection relation between the high-voltage contact pairs. Embodiments of the switch have a voltage-resistance of above 50 KV, allowing a pulse current of not less than 500 A to pass through, and good contact performance and a high stability. In one aspect, the high-voltage automatic changeover switch performs automatic switching of power source high voltages in an accelerator system, so that the accelerator obtains electron beams with different energies, thus allowing an expanded scope of application of the accelerator, including updating and upgrading of non-destructive testing systems, custom container inspection systems, and high-energy CT systems.

High-voltage automatic changeover switch

Growing community of inventors

Beijing, China

Yumei Chen