公开(公告)号：US11293860B2

公开(公告)日：2022-04-05

申请号：US17121672

申请日：2020-12-14

Applicant: TSINGHUA UNIVERSITY

Inventor： Xiao-Ping Zheng ,  Bin Cao ,  Hua Geng

IPC: G01N21/3586 ,  G01J3/28

Abstract: The present application provides a terahertz spectral imaging data reconstruction method, an apparatus, a device, and a storage medium. The method includes: scanning a target object according to the first spatial interval and the first time domain sampling period to acquire the first terahertz spectral data; scanning the target object according to the second spatial interval and the second time domain sampling period to acquire the second terahertz spectral data, the first spatial interval is larger than the second spatial interval, and the first time domain sampling period is larger than the second time domain sampling period; and reconstructing the second terahertz spectral data on basis of the first terahertz spectral data by using the preset reconstruction method to obtain the third terahertz spectral data.

公开(公告)号：US10571393B2

公开(公告)日：2020-02-25

申请号：US16445219

申请日：2019-06-19

Applicant: Tsinghua University

Inventor： Xiao-Ping Zheng ,  Xiao-Jiao Deng ,  Hua Geng

IPC: G01N21/3581 ,  G01J3/42

Abstract: The present disclosure relates to a terahertz-based high-risk chemical detecting device, which includes a terahertz wave generating unit, a terahertz wave transmitting and receiving unit and an echo analysis unit. The terahertz wave generating unit is configured for generating a terahertz detection signal, a terahertz reference signal and a terahertz local oscillation signal. The terahertz wave transceiver unit is configured to transmit the terahertz detection signal and the terahertz reference signal to a high-risk chemical to be tested, and receive information about carrying a high-risk chemical to be tested. The terahertz echo signal is configured to analyze the terahertz echo signal and the terahertz local oscillation signal to obtain information about a high-risk chemical to be tested. The present disclosure also relates to a terahertz-based high-risk chemical detecting method.