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    Coaxial microwave rotary applicator for material processing
    3.
    发明授权
    Coaxial microwave rotary applicator for material processing 有权

    公开(公告)号：US11559164B2

    公开(公告)日：2023-01-24

    申请号：US16676687

    申请日：2019-11-07

    申请人： National Tsing Hua University

    发明人： Hsein-Wen Chao ,  Tsun-Hsu Chang ,  Huan-Jun Guo ,  Cheng-Hsuan Chan ,  Po-Yen Chiu ,  Yu-Tzu Chang

    IPC分类号： A47J31/42 ,  H05B6/64 ,  H05B6/80 ,  A23N12/10

    摘要： Disclosures of the present invention describe a coaxial microwave rotary applicator for material processing, mainly comprising: a waveguide unit, a microwave generator connected to one end of the waveguide unit, a bearing unit, a chamber, a rotary shaft, a driver unit, a sampling unit. The bearing unit is connected to the waveguide unit through a non-rotary ring, and the chamber is connected to a rotary ring of the bearing unit, and the microwave generator is configured for supplying a microwave to the chamber. By such arrangements, it is able to uniformly heat a specific material disposed in the chamber by driving the chamber to rotate. It is worth noting that, a user is allowed to clearly observe the processing progress via the sampling unit during the heating process of the specific material.

    System and method for measuring permittivity
    4.
    发明授权
    System and method for measuring permittivity 有权

    公开(公告)号：US09810645B2

    公开(公告)日：2017-11-07

    申请号：US14664228

    申请日：2015-03-20

    申请人： National Tsing Hua University

    发明人： Tsun-Hsu Chang ,  Hsein-Wen Chao ,  Wei-Syuan Wong

    IPC分类号： G01R27/04 ,  G01N22/00 ,  G01N27/04

    CPC分类号： G01N22/00 ,  G01N27/04

    摘要： A system for measuring a permittivity includes a resonant chamber, a conductive probe, a platform, a pillar, a detector, and a computing module. The resonant chamber has a cavity. The conductive probe is configured for introducing a microwave into the cavity of the resonant chamber. The platform is configured for carrying a sample. The pillar is positioned between the platform and a chamber wall, so that the platform protrudes from the chamber wall. The detector is used to detect a resonant frequency of the microwave when resonance occurs within the cavity. The computing module is configured for calculating a permittivity corresponding to the measured resonant frequency according to a corresponding relationship between resonant frequency and permittivity. The above-mentioned system for measuring a permittivity is capable of measuring a broader range of permittivity with simplified measurement steps and higher accuracy. A method for measuring a permittivity is also disclosed.

    MATERIAL PROCESSING APPARATUS USING QUASI-TRAVELING MICROWAVE TO CONDUCT HEAT TREATMENT
    5.
    发明申请
    MATERIAL PROCESSING APPARATUS USING QUASI-TRAVELING MICROWAVE TO CONDUCT HEAT TREATMENT 有权

    公开(公告)号：US20230131336A1

    公开(公告)日：2023-04-27

    申请号：US17540401

    申请日：2021-12-02

    申请人： National Tsing Hua University

    发明人： Tsun-Hsu Chang ,  Hsein-Wen Chao ,  Hung-Chun Hsu ,  Yan-Ren Chen

    IPC分类号： F26B3/347 ,  H05B6/64 ,  H05B6/70

    摘要： A material processing apparatus is disclosed. This material processing apparatus is particularly developed to utilize a quasi-traveling microwave to conduct heat treatment for a thread-type article like fiber, silk, artificial fiber, and artificial silk. The material processing apparatus comprises a primary waveguide tube, a microwave blocking plate, a secondary waveguide tube, and at least one microwave absorbing member disposed of in the primary waveguide tube. By such design, a microwave source supplies a microwave to the secondary waveguide tube and the primary waveguide tube, such that the microwave travels in the two waveguide tubes so as to become a quasi-traveling microwave. Therefore, in the case of a thread-type article being be fed into the primary waveguide tube via the secondary waveguide tube by a thread-type article transferring mechanism, the thread-type article is steadily and evenly heated by the quasi-traveling microwave in the two waveguide tubes.