System and method for hand-held NQR-based in-field screening of substances

    公开(公告)号:US11549897B2

    公开(公告)日:2023-01-10

    申请号:US17389601

    申请日:2021-07-30

    Abstract: An exemplary integrated nuclear quadrupole resonance-based detection system comprises a front-end device having a hand-held form factor, wherein the front-end device is configured to scan a sample in or near a sample coil using inbuild electronics and acquire a nuclear quadrupole resonance measurement. The system further includes a swappable sample coil that is attached to an opening at a face of the front-end device and is tuned to a resonant frequency of the sample; and a swappable impedance matching network that is attached to the opening at the face of the front-end device and is configured to tune the resonant frequency of the sample coil. The inbuild electronics comprises a wireless transfer module that is configured to communicate the acquired nuclear quadrupole resonance measurement with a back-end device of the integrated nuclear quadrupole resonance-based detection system. Other systems and methods are also provided.

    TAGGING OF MATERIALS AND OBJECTS AND ANALYSIS FOR AUTHENTICATION THEREOF

    公开(公告)号:US20200293730A1

    公开(公告)日:2020-09-17

    申请号:US16817282

    申请日:2020-03-12

    Abstract: This disclosure relates to tagging of materials and objects and analysis for authentication thereof. An example method includes analyzing separately a number of locations distributed across a given surface of a solid object according to one or more analysis technologies to determine feature data for each of the locations. The feature data are indicative of a respective chemical property and/or mechanical property of the solid object at each of the locations, corresponding to a feature tag, and the feature data depend on the one or more analysis technologies. The method also includes determining a tag signature for the solid object based on the feature data determined for each of the locations.

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