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公开(公告)号：US10967475B2
公开(公告)日：2021-04-06
申请号：US16261582
申请日：2019-01-30
申请人： XI'AN JIAOTONG UNIVERSITY , RESEARCH INSTITUTE OF XI'AN JIAOTONG UNIVERSITY IN SUZHOU , Yaolong Chen , Chuan Zhang , Xiaoyan Chen , Jun Zha
发明人： Yaolong Chen , Chuan Zhang , Xiaoyan Chen , Jun Zha
摘要： A polishing device for optical elements includes: a tool shank (1), and a polishing disc base; wherein the tool shank (1) is connected to the polishing disc base and is mounted on a tool shaft of a numerical-controlled processing device; wherein a polishing film (3) is stuck on the polishing disc base; the polishing disc base is a profiling polishing disc base (7), a cylinder polishing disc base (2), a profiling polishing disc base (12) or a spherical polishing disc base (8); wherein the tool shank (1) is independent and universal, thereby reducing the processing cost of the polishing device. A polishing method for optical elements is based on the shapes mentioned above of the polishing disc base, including steps of: fixing a polishing disc connecting rod (11); sticking a polishing film (3); trimming the polishing film (3); and polishing an unprocessed work piece (6).
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公开(公告)号：US20190152013A1
公开(公告)日：2019-05-23
申请号：US16261582
申请日：2019-01-30
申请人： Yaolong Chen , Chuan Zhang , Xiaoyan Chen , Jun Zha , XI'AN JIAOTONG UNIVERSITY , RESEARCH INSTITUTE OF XI'AN JIAOTONG UNIVERSITY IN SUZHOU
发明人： Yaolong Chen , Chuan Zhang , Xiaoyan Chen , Jun Zha
摘要： A polishing device for optical elements includes: a tool shank (1), and a polishing disc base; wherein the tool shank (1) is connected to the polishing disc base and is mounted on a tool shaft of a numerical-controlled processing device; wherein a polishing film (3) is stuck on the polishing disc base; the polishing disc base is a profiling polishing disc base (7), a cylinder polishing disc base (2), a profiling polishing disc base (12) or a spherical polishing disc base (8); wherein the tool shank (1) is independent and universal, thereby reducing the processing cost of the polishing device. A polishing method for optical elements is based on the shapes mentioned above of the polishing disc base, including steps of: fixing a polishing disc connecting rod (11); sticking a polishing film (3); trimming the polishing film (3); and polishing an unprocessed work piece (6).
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公开(公告)号：US12117208B2
公开(公告)日：2024-10-15
申请号：US17869967
申请日：2022-07-21
发明人： Shifeng Deng , Qinxin Zhao , Huaishuang Shao , Yungang Wang , Zhiyuan Liang
CPC分类号： F24H8/006 , F24H1/43 , F24H9/0026
摘要： A gas-fired steam boiler, including multiple heat exchange tubes, an upper steam header, a lower steam header, a casing, a burner, a condenser, a chimney, and a controller. The heat exchange tubes are vertically arranged to form an annular tube row. A space enclosed by the annular tube row is configured as a furnace. Adjacent two heat exchange tubes are combined to form a gap channel evenly distributed along a circumferential direction. A width of the gap channel is 0.1-4 mm, and a circumferential length of the gap channel is 50-300 mm. A length of the gap channel along an axial direction of the heat exchange tube is the same as a length of the heat exchange tube.
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公开(公告)号：US20240335161A1
公开(公告)日：2024-10-10
申请号：US18749762
申请日：2024-06-21
发明人： Huicong Du
IPC分类号： A61B5/00
CPC分类号： A61B5/445 , A61B5/742 , A61B2560/0204 , A61B2560/045 , A61B2562/043 , A61B2562/125 , A61B2562/164 , A61B2562/166
摘要： The present disclosure provides a wireless sensor, a manufacturing method thereof and a wound flatness detection system. The wireless sensor includes a sensing element, two elastomer-made encapsulation layers and a breathable fiber-made encapsulation layer; wherein the sensing element is manufactured by the following steps: step 1: preparing a thin film using a carbon-based polymer solution; step 2: using a low-energy laser to induce molecular reconstruction of carbon-based groups on surfaces of the thin film to form a resistance-sensitive layer; step 3: using a high-energy laser to modify, carbonize and cut the resistance-sensitive layer to form a patterned sensing element. The present disclosure solves the problems that existing pressure or tension sensors are extremely susceptible to static interference from the external environment and the human body, and the mechanical mismatch between the sensing layer and the substrate, as well as the impermeability problem.
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公开(公告)号：US20240235181A1
公开(公告)日：2024-07-11
申请号：US18543735
申请日：2023-12-18
发明人： Mingzhe Rong , Fei Yang , Yifei Wu , Jinru Sun , Yi Wu , Chunping Niu
CPC分类号： H02H7/06 , H02H1/0007
摘要： A generator circuit breaker includes a main current branch, a current-limiting transfer branch, a freewheeling branch and a fast switch. The main current branch includes a high-speed mechanical switch S1 and a high-speed mechanical switch S2 in parallel, wherein two ends of each of breaks of the high-speed mechanical switch S1 and the high-speed mechanical switch S2 are directly connected with wire outlet ends of the circuit breaker respectively. One end of the current-limiting transfer branch is connected in parallel to one end of the main current branch and the other end of the current-limiting transfer branch is connected with the other end of the main current branch via a fast switch S3, wherein the current-limiting transfer branch includes a transfer capacitor C, an inductor L, thyristor components T1 and T2, and a current-limiting resistor R.
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6.发明公开公开(公告)号：US20240235180A1
公开(公告)日：2024-07-11
申请号：US18543530
申请日：2023-12-18
发明人： Fei Yang , Mingzhe Rong , Jinru Sun , Yifei Wu , Chunping Niu , Yi Wu , Jun Wang
CPC分类号： H02H7/06 , H02H1/0007
摘要： The disclosure discloses a generator circuit breaker control method based on short-circuit fault current symmetry. The method includes: collecting, by a control device, current on an outlet side of a generator in real time; calculating a transferring current feeding moment based on a current symmetry method when fault current rises to a peak value after a short-circuit fault occurs; correcting the transferring current feeding moment by a correction coefficient; and then calculating a breaker switching moment, thereby realizing precise control on a generator circuit breaker. The method mainly addresses the situation that the existing control method cannot effectively cope with the complexity of the short-circuit fault current on the outlet side of the generator, and fills the blank of the effective method for short-circuit control of the generator circuit breaker.
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公开(公告)号：US20240216984A1
公开(公告)日：2024-07-04
申请号：US18342843
申请日：2023-06-28
发明人： Shengdun ZHAO , Baiyang LIU , Shuqin FAN , Ming CHANG , Haotian ZHANG
摘要： Disclosed is a lightweight two-crossbeam high-speed free forging hydraulic press. The hydraulic press includes a fixed crossbeam, a movable crossbeam, a column, and a return oil cylinder. By integrating a hydraulic cylinder with a through hole for the column to slide, an annular hydraulic cylinder is formed between the movable crossbeam and the column, and no hole is required to be specially provided on the movable crossbeam for mounting the hydraulic cylinder. Therefore, the rigidity, strength and bending resistance of the movable crossbeam serving as an upper crossbeam or a lower crossbeam can be effectively guaranteed, the crossbeam structure is simplified, and the manufacturing difficulty is reduced. Meanwhile, compared with the existing hydraulic press of a three-crossbeam structure, the two-crossbeam hydraulic press can greatly reduce the overall dimension and mass of the high-speed forging hydraulic press, reduce the overall height of the hydraulic press.
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公开(公告)号：US20240133845A1
公开(公告)日：2024-04-25
申请号：US17971429
申请日：2022-10-20
发明人： Zhibo YANG , Jiahui CAO , Haoqi LI , Shaohua TIAN , Laihao YANG , Zengkun WANG , Xuefeng CHEN , Shuming WU
摘要： The present disclosure discloses a method for detecting a natural frequency of a blade by a single blade tip timing sensor. In the method, two segments of displacement data vectors are subjected to dot product to obtain a product data vector after multiplication of corresponding serial numbers, the product data vector is subjected to low-frequency filtering, the filtered product vector is subjected to Hilbert transform to obtain an instantaneous phase, the instantaneous phase is subjected to discrete Fourier transform, an absolute value of a natural frequency difference between blades is extracted from amplitude frequency data, blades on a bladed disk are subjected to permutation and combination to obtain absolute values of the natural frequency differences between all the blades, a sum of the absolute values of the natural frequency differences between each blade and other blades is calculated.
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9.发明公开公开(公告)号：US20240116327A1
公开(公告)日：2024-04-11
申请号：US18520468
申请日：2023-11-27
发明人： Xiongwen ZHANG , Qiang ZHANG , Ganglin CAO
IPC分类号： B60H1/00
CPC分类号： B60H1/00392 , B60H1/00278 , B60H1/00885 , B60H1/00899
摘要： An electric vehicle thermal management system and method based on a self-circulating gas-liquid phase change cold plate are disclosed. A top cover, a first heat exchanger, a battery case partition and a battery case bottom plate are arranged in sequence from top to bottom, a top heat exchanging chamber is formed between an upper heat exchanging surface of the first heat exchanger and the top cover; the battery case partition is of a square wave-like structure, a working medium chamber is formed between a top of the battery case partition and a lower heat exchanging surface of the first heat exchanger, the working medium chamber is filled with a gas-liquid phase change working medium, and a plurality of battery chambers are formed between the bottom of the battery case partition and the battery case bottom plate.
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公开(公告)号：US20240102955A1
公开(公告)日：2024-03-28
申请号：US18360912
申请日：2023-07-28
申请人： China Jikan Research Institute Of Engineering Investigations And Design, Co.,Ltd , Xi'an Jiaotong University
发明人： Jie CAO , Yonglin YANG , Zaixin WAN , Peng GAO , Qingyi MU , Dongjing WANG , Yuanqiang ZHOU , Zhi LIU , Long ZHANG , Hui LI , Jian CHEN , Teng YANG , Lei RAN , Jiao LIN , Xiao DONG , Shuai LIU , Weiwei ZHAO
CPC分类号： G01N27/048 , G01N33/24
摘要： A non-invasive time domain reflection probe calibration method includes: using different volume ratio of ethanol and deionized water mixed solution to calculate a test target's medium weight coefficient and waveguide length of the non-invasive time domain reflection probes; using different concentrations of NaCl solutions to calibrate a waveguide geometric dimensioning of the non-invasive time domain reflection probes; preparing compacted soil samples with known different moisture contents and densities, and calibrating a correlation parameter of compacted soil samples' dielectric constant and conductivity with moisture content and density. The method not only determines the sensitivity of the test target medium of the non-invasive time domain reflection probes, but also obtains the waveguide length and geometric dimensioning of the probe, and realizes an accurate test of moisture content and density of the soil. The calibration method has an accurate calibration result, a wide application range, a convenient operation and a strong practicability.
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