公开(公告)号：US11690146B2

公开(公告)日：2023-06-27

申请号：US16808376

申请日：2020-03-04

Applicant: Sichuan University

Inventor： Kama Huang ,  Yi Zhang ,  Yang Yang ,  Huacheng Zhu ,  Li Wu ,  Bing Zhang

IPC: H05B6/70 ,  H05B6/80 ,  H05B6/68 ,  G01N22/00

CPC classification number: H05B6/686 ,  H05B6/707 ,  G01N22/00

Abstract: A microwave separated field reconstructed device includes: a microwave field reconstructed cavity, a first short circuit plane, a third waveguide flange and coupling windows, wherein connection ports are provided on four ends of the microwave field reconstructed cavity; the microwave field reconstructed cavity is provided with a first waveguide flange, and a second waveguide flange is provided one end of the microwave field reconstructed cavity perpendicular to the first waveguide flange; the first short circuit plane is connected to one end of the first waveguide flange away from the microwave field reconstructed cavity; a second short circuit plane is connected to one end of the second waveguide flange away from the microwave field reconstructed cavity. The input ports are distributed at two ends of the microwave field reconstructed cavity to introduce electric and magnetic fields.

公开(公告)号：US11646478B2

公开(公告)日：2023-05-09

申请号：US17356525

申请日：2021-06-24

Applicant: Sichuan University

Inventor： Huacheng Zhu ,  Yang Yang

IPC: H01P1/26 ,  H01P1/30 ,  H01P3/16

CPC classification number: H01P1/30 ,  H01P1/262 ,  H01P1/264 ,  H01P3/16

Abstract: A meta-surface water load includes a waveguide section, a water load section and two meta-surface plates; the water load section is arranged at a rear end of the waveguide section; the two meta-surface plates are arranged opposite on inner walls of two narrow sides of the waveguide section; the water load section includes a metal casing, a ceramic partition, a water inlet and a water outlet; the metal casing is mounted at the rear end of the waveguide section; cooling liquid flows in the metal casing, entering from the water inlet and leaving from the water outlet; the ceramic partition is for separating interior of the waveguide section and interior of the metal casing; a relative permittivity of materials from front to rear of each meta-surface plate is progressively increased, so that microwave in the waveguide section is propagated to the water load section in one direction.

公开(公告)号：US11150286B2

公开(公告)日：2021-10-19

申请号：US16699607

申请日：2019-11-30

Applicant: Sichuan University

Inventor： Kama Huang ,  Yang Yang ,  Huacheng Zhu ,  Xing Chen ,  Changjun Liu

IPC: G01R29/08

Abstract: A wireless passive probe solves problems such as the measurement accuracy of the field strength detecting device in the prior art is affected by the communication device and the system structure is complicated, which includes a probe for collecting data in the field to be measured; wherein the wireless passive probe further comprises: a wireless transmission module, an antenna module, sensors, and a microprocessor. The wireless passive probe of the present invention transmits position temperature, field strength, moisture, air pressure probe serial numbers and the coordinate signals of the probe in real time through the wireless transmission module, and provides the power supply to the communication module through detecting or receiving microwave signals through the antenna, thereby avoiding inaccurate wireless measurement of the probe field caused by the field to be tested which is not tightly sealed and the cable.

公开(公告)号：US09355808B2

公开(公告)日：2016-05-31

申请号：US14729300

申请日：2015-06-03

Applicant: Sichuan University

Inventor： Kama Huang ,  Changjun Liu ,  Yang Yang ,  Xing Chen ,  Huacheng Zhu

IPC: H01J25/50

CPC classification number: H01J25/50

Abstract: An injection locked magnetron microwave generator with a recycle of spurious energy, relating to a microwave power source, includes a frequency selective reflector for recycling the spurious energy of a magnetron and satisfies locking requirements of an output frequency of a high-output-power magnetron with a low-power injection signal. The microwave generator includes n magnetrons and n locking devices, n≧1. The locking devices inject locking signals into the corresponding magnetrons. The n locking devices are connected with a microwave source. Output terminals of the magnetrons are connected with corresponding frequency selective reflectors for reflecting the spurious microwave signals outputted by the magnetrons back to the magnetrons. The microwave generator, with a simple structure, effectively recycles the spurious energy outputted by the magnetrons, and reduces the power of the injection signal and costs of the microwave source and the overall microwave generator.

Abstract translation: 具有与微波功率源相关的杂散能量再循环的注入锁定磁控管微波发生器包括用于再现磁控管的杂散能量的频率选择性反射器，并且满足高输出功率磁控管的输出频率的锁定要求 低功率注入信号。 微波发生器包括n个磁控管和n个锁定装置，n≥1。 锁定装置将锁定信号注入到相应的磁控管中。 n个锁定装置与微波源连接。 磁控管的输出端子与相应的频率选择反射器连接，用于将由磁控管输出的杂散微波信号反射回磁控管。 具有简单结构的微波发生器有效地回收了磁控管输出的杂散能量，并降低了注入信号的功率和微波源和整个微波发生器的成本。

公开(公告)号：US12128512B2

公开(公告)日：2024-10-29

申请号：US18031357

申请日：2022-09-23

Applicant: SICHUAN UNIVERSITY

Inventor： Heping Xie ,  Ru Zhang ,  Zetian Zhang ,  Ling Chen ,  Mingzhong Gao ,  Zhilong Zhang ,  Yang Yang ,  Jianan Li ,  Wei Huang ,  Li Ren ,  Yihang Li ,  Kun Xiao ,  Weiqiang Ling ,  Chendi Lou ,  Heng Gao

IPC: B23P19/04 ,  B23P19/10 ,  E21B41/00 ,  G01M99/00 ,  E21B25/00

CPC classification number: B23P19/04 ,  B23P19/10 ,  E21B41/00 ,  G01M99/008 ,  E21B25/00 ,  Y10T29/49895

Abstract: An assembly method for a deep in-situ high-fidelity coring calibration platform includes the following steps: S1: fixing a core bin assembly subsystem on a preset ground foundation and fixing a simulator of a core bin on a mounting base plate of the core bin assembly subsystem; S2: driving a cylinder and driving the mounting base plate to move to a preset position; S3: driving a servo motor and controlling two clips to move close to each other; S4: fixing a drill pipe bin assembly subsystem on the ground foundation; S5: assembling multiple sections of a drill pipe bin in turn; aligning and connecting a bottom of the drill pipe bin to the simulator, and aligning and communicating the top of the drill pipe bin with the lower part of an adaptive drill pipe guide structure; and S6: driving the adaptive drill pipe guide structure to perform accurate positioning.

公开(公告)号：US11839705B2

公开(公告)日：2023-12-12

申请号：US17165914

申请日：2021-02-02

Applicant: SICHUAN UNIVERSITY

Inventor： Huacheng Zhu ,  Yang Yang ,  Kama Huang

IPC: A61L9/20

CPC classification number: A61L9/20 ,  A61L2209/14

Abstract: An air purification device able to kill bacteria and viruses is provided, including an air channel, an air pump, a filtering device, and an electrodeless ultraviolet sterilization device. The electrodeless ultraviolet sterilization device is arranged inside the air channel and includes a microwave generator, an electrodeless ultraviolet tube, and a uniform radiator. The uniform radiator is a coaxial cable with gaps provided thereon. The electrodeless ultraviolet tube is a hollow columnar quartz tube. The coaxial cable is arranged in a hollow portion of the quartz tube. The coaxial cable is connected to the to microwave generator. The air purification device has a compact structure. Through arranging the electrodeless ultraviolet sterilization device inside the air channel, large-granular dust in the air is filtered, and meanwhile, bacteria and viruses in the air are effectively killed. Moreover, the present invention is safe and effective and has high sterilization efficiency and a low production cost.

公开(公告)号：US20220136098A1

公开(公告)日：2022-05-05

申请号：US17576794

申请日：2022-01-14

Applicant: Sichuan University

Inventor： Kama Huang ,  Yang Yang ,  Changjun Liu ,  Huacheng Zhu

IPC: C23C14/35 ,  H01J37/34 ,  H01J37/32

Abstract: A method for improving service life of a magnetron, which belongs to the technical field of microwave applications, includes: taking anode working voltage range is taken as n voltage values U1 . . . Un constituting an arithmetic sequence; taking the voltage value as the anode voltage; in each voltage value, adjusting the magnet coil current between I min and Imax by the coil current control part , so that the output power P of the experimental magnetron is equal to the target power P0, and measuring the cathode filament temperature at this time by the temperature measuring part, which is denoted as Ti; measuring all the cathode filament temperatures Ti as the temperature data set corresponding to P0 by the temperature measuring part; taking out the minimum temperature value Tmin in the temperature data set, and using the anode voltage value and the magnet coil current value corresponding to Tmin as the working magnetron, wherein the output power is the anode voltage value and the magnet coil current value of P0. The present invention provides a method for improving the service life of a magnetron, which adjusts the electric field and the magnetic field, finds the synergy between the magnetic field and the electric field, and improves the service life of the magnetron.

公开(公告)号：US20220007472A1

公开(公告)日：2022-01-06

申请号：US17480354

申请日：2021-09-21

Applicant: Sichuan University

Inventor： Huacheng Zhu ,  Yang Yang

IPC: H05B6/70 ,  H01P1/38

Abstract: A microwave heating device with reflection protection belongs to a technical field of microwave applications. A first port of a circulator is connected to a microwave generator, and a second port of the circulator is connected to a microwave transmission device. A water load comprises a waveguide section, a metamaterial structure layer and the absorption tube. One end of the waveguide section is connected to a third port of the circulator, and the other end is sealed by a metal plate. The metamaterial structure layer is arranged in the waveguide section, and a center of the metamaterial structure layer has an accommodation space. The absorption tube is arranged along an internal wall of the accommodation space with a spiral extending form. Both ends of the absorption tube penetrate the waveguide section, and coolant flows in the absorption tube. Relative dielectric constants of the metamaterial structure layer gradually increase.

公开(公告)号：US20150270091A1

公开(公告)日：2015-09-24

申请号：US14729300

申请日：2015-06-03

Applicant: Sichuan University

Inventor： Kama Huang ,  Changjun Liu ,  Yang Yang ,  Xing Chen ,  Huacheng Zhu

IPC: H01J25/50

CPC classification number: H01J25/50

Abstract: An injection locked magnetron microwave generator with a recycle of spurious energy, relating to a microwave power source, includes a frequency selective reflector for recycling the spurious energy of a magnetron and satisfies locking requirements of an output frequency of a high-output-power magnetron with a low-power injection signal. The microwave generator includes n magnetrons and n locking devices. The locking devices inject locking signals into the corresponding magnetrons. The n locking devices are connected with a microwave source. Output terminals of the magnetrons are connected with corresponding frequency selective reflectors for reflecting the spurious microwave signals outputted by the magnetrons back to the magnetrons. N≧1. The microwave generator, with a simple structure, effectively recycles the spurious energy outputted by the magnetrons, and reduces the power of the injection signal and costs of the microwave source and the overall microwave generator.

Abstract translation: 具有与微波功率源相关的杂散能量再循环的注入锁定磁控管微波发生器包括用于再现磁控管的杂散能量的频率选择性反射器，并且满足高输出功率磁控管的输出频率的锁定要求 低功率注入信号。 微波发生器包括n个磁控管和n个锁定装置。 锁定装置将锁定信号注入到相应的磁控管中。 n个锁定装置与微波源连接。 磁控管的输出端子与相应的频率选择反射器连接，用于将由磁控管输出的杂散微波信号反射回磁控管。 N≥1。 具有简单结构的微波发生器有效地回收了磁控管输出的杂散能量，并降低了注入信号的功率和微波源和整个微波发生器的成本。

公开(公告)号：US20230156878A1

公开(公告)日：2023-05-18

申请号：US18098706

申请日：2023-01-19

Applicant: Sichuan University

Inventor： Huacheng Zhu ,  Fengming Yang ,  Yang Yang

IPC: H05B6/70 ,  H05B6/72

CPC classification number: H05B6/708 ,  H05B6/72

Abstract: The invention relates to the technical field of microwave heating, and more particularly to a high-efficiency heating device in a microwave chamber and a heating method thereof. A high-efficiency heating device in a microwave chamber, comprising: a heating chamber; a straight-walled waveguide with microwave asymmetric propagation function; wherein one end of the straight-walled waveguide is communicated with the heating chamber; and at least one group of unidirectional waveguide structures, which are attached to an inner sidewall of the straight-walled waveguide; wherein the unidirectional waveguide structures comprise a first medium section and a second medium section which are provided along the microwave transmission direction; wherein a dielectric constant of the first medium section gradually increases along the microwave transmission direction and has a maximum value of εmax, a dielectric constant of the second medium section is a constant value of εc, and εmax=εc.