专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20230120241A1 Linkage device, transceiver module and plane stress field measuring device and method capable of achieving synchronous adjustment of distance and angle 有权
公开(公告)号：US20230120241A1
公开(公告)日：2023-04-20
申请号：US17552467
申请日：2021-12-16
申请人： Harbin Institute of Technology
发明人： Weijia Shi , Jiaxin Li , Bo Zhao , Jiubin Tan
IPC分类号： G01N29/26 , G01N29/07 , G01B17/00
摘要： Disclosed are a linkage device, a transceiver module and a plane stress field measuring device and method capable of achieving synchronous adjustment of distance and angle, and relates to the field of ultrasonic non-destructive testing. The existing technical means for measuring plane stress in the field of ultrasonic testing has the shortcomings that the same testing is only applicable for single materials and the deflection angles of transmitting and receiving transducers are inconsistent. In the application, the linkage device designed by comprising a distance adjusting screw, an angle adjusting screw, a left connecting rod, a right connecting rod, a shaft column and a column lock is adopted, and based on the linkage device, the transceiver module designed by comprising a receiving end wedge, a receiving probe, a transmitting end wedge and a transmitting probe is additionally arranged; based on the transceiver module, the measuring device designed by comprising a pulse transmitting device, an amplifying device and a data acquisition device is additionally arranged, and the stress measuring method applicable for the stress measuring device is provided; and the distance and deflection angle between the receiving probe and the transmitting probe of the detection are adjusted according to a tested part. The application applies to stress measurement in the manufacturing process of mechanical components.

2. 发明授权

US11539309B2 Zero-voltage zero-current soft switching type driving method for ultrasonic driving unit 有权
公开(公告)号：US11539309B2
公开(公告)日：2022-12-27
申请号：US17079432
申请日：2020-10-24
申请人： HARBIN INSTITUTE OF TECHNOLOGY
发明人： Weijia Shi , Xuyang Yu , Bo Zhao , Jiubin Tan
IPC分类号： H02N2/14 , H02N2/00
摘要： A zero-voltage zero-current soft switching type driving method for an ultrasonic motor is provided, relating to the technical field of driving of a two-phase actuator. The disclosure solves the problems of high loss, high heat amount and the like in a traditional ultrasonic motor driving circuit. The method provided realizes resonance between series inductors and buffer capacitors by means of an optimal design of the inductance of matching inductors, the capacitance of buffer capacitors, a dead time value and a delay time value, thereby causing a power tube to realize zero-voltage and zero-current switching. Two signal input ends of a two-phase pseudo full bridge inverter are connected to a power grid, and two signal output ends of the two-phase pseudo full bridge inverter are respectively connected to two signal input ends of a matching circuit; and the output ends of the matching circuit are respectively connected to a two-phase ultrasonic motor.

3. 发明授权

US10794790B2 Large-scale high-speed rotary equipment measuring and neural network learning regulation and control method and device based on rigidity vector space projection maximization 有权
公开(公告)号：US10794790B2
公开(公告)日：2020-10-06
申请号：US16375089
申请日：2019-04-04
申请人： Harbin Institute of Technology
发明人： Yongmeng Liu , Chuanzhi Sun , Jiubin Tan
IPC分类号： G01M1/24 , G01M1/20 , G06N3/08 , G06N3/04 , G06F17/16 , F01D25/28 , G06N3/00 , G06N3/02
摘要： The present invention provides a large-scale high-speed rotary equipment measuring and neural network learning regulation and control method and device based on rigidity vector space projection maximization, belonging to the technical field of mechanical assembly. The method utilizes an envelope filter principle, a two-dimensional point set S, a least square method and a learning neural network to realize large-scale high-speed rotary equipment measuring and regulation and control. The device comprises a base, an air flotation shaft system, an aligning and tilt regulating workbench, precise force sensors, a static balance measuring platform, a left upright column, a right upright column, a left lower transverse measuring rod, a left lower telescopic inductive sensor, a left upper transverse measuring rod, a left upper telescopic inductive sensor, a right lower transverse measuring rod, a right lower lever type inductive sensor, a right upper transverse measuring rod and a right upper lever type inductive sensor. The method and the device can perform effective measuring and accurate regulation and control on large-scale high-speed rotary equipment.

4. 发明授权

US09724791B2 Aircraft engine rotor assembly method and device 有权
公开(公告)号：US09724791B2
公开(公告)日：2017-08-08
申请号：US15118803
申请日：2014-12-26
申请人： HARBIN INSTITUTE OF TECHNOLOGY
发明人： Bo Zhao , Lei Wang , Jiubin Tan , Chuanzhi Sun
IPC分类号： B23P15/04 , G01B5/20 , F01D25/28 , F01D5/00 , G01B5/207 , F01D5/02
CPC分类号： B23P15/04 , F01D5/005 , F01D5/02 , F01D5/027 , F01D5/26 , F01D25/285 , F05D2220/323 , F05D2230/64 , F05D2250/31 , G01B5/205 , G01B5/207
摘要： Aircraft engine rotors traditionally have low coaxiality after assembly. This is solved by the methods and devices described herein, having advantages that the rotors have high coaxiality after assembly, reduced vibration, easy installation, high flexibility, and improved engine performance. A measurement method and device use an air flotation rotary shaft system determining a rotary reference. An induction synchronizer determines angular positioning of a turntable. Using a four probe measurement device, a radial error of a rotor radial assembly surface and an inclination error of an axial mounting surface are extracted and an influence weight value of the rotor on the coaxiality of assembled rotors is obtained. All rotors required for assembly are measured and an influence weight value of each on the coaxiality of the assembled rotors is obtained. Vector optimization is performed on the weight value of each rotor and an assembly angle of each rotor is obtained.

5. 发明授权

US09668391B2 Electromagnetic shielding optical window based on array of rings and sub-rings having triangular and orthogonal mixed distribution 有权
公开(公告)号：US09668391B2
公开(公告)日：2017-05-30
申请号：US15118815
申请日：2014-12-16
申请人： HARBIN INSTITUTE OF TECHNOLOGY
发明人： Zhengang Lu , Jiubin Tan
IPC分类号： H05K9/00 , G02B5/18
CPC分类号： H05K9/0094 , G02B5/18 , G02B5/1866 , G02B27/0018 , G02B27/46 , G02B2207/121 , H05K9/0086
摘要： An optical window based on an array of rings and sub-rings having a triangular and orthogonal mixed distribution is suited for electromagnetic shielding. The array has metal rings of the same diameter acting as basic rings closely arranged according to an equilateral triangular and two-dimensional orthogonal square mixed arrangement and is loaded on an optical window transparent substrate surface. Adjacent basic rings are connected externally tangentially. Metal sub-rings are arranged within each basic ring and connected thereto internally tangentially. Each basic ring and its sub-rings constitute a basic unit. At tangential connection locations of the rings, wires overlap or metal is provided to ensure reliable electrical connections between connected rings, thus all rings are conductive. The metal grid structure significantly reduces non-uniformity of grid high-order diffracted light intensity distribution, thereby causing stray light distribution caused by diffraction to be more uniform and imaging to be less affected.

6. 发明授权

US09423000B2 Magnetically suspended vibration isolator with zero stiffness whose angle degree of freedom is decoupled with a joint ball bearing 有权
标题翻译：具有零刚度的磁悬浮隔振器，其角度自由度用接头球轴承解耦
公开(公告)号：US09423000B2
公开(公告)日：2016-08-23
申请号：US14421610
申请日：2014-02-19
申请人： HARBIN INSTITUTE OF TECHNOLOGY
发明人： Jiubin Tan , Junning Cui , Lei Wang
IPC分类号： F16M13/00 , F16F15/03 , F16F15/023 , F16F15/00 , G01D5/20 , G01L19/00 , H02K41/035
CPC分类号： F16F15/03 , F16F15/002 , F16F15/0232 , G01D5/20 , G01L19/0061 , H02K41/0356
摘要： A magnetically suspended vibration isolator with zero stiffness whose angle degree of freedom is decoupled with a joint ball bearing has a main body, in which a sleeve and a lower mounting plate are supported with a magnetically suspended thrust bearing, a piston cylinder and the sleeve are lubricated and supported with a cylinder air bearing surface, and the angle degree of freedom between a upper mounting plate and the lower mounting plate is decoupled with a joint ball bearing; a position close-loop control system comprising voice coil motors, displacement sensors, limit switches, a controller and a driver is introduced, and the relative position between the upper mounting plate and the lower mounting plate is precisely controlled.
摘要翻译：具有零刚度的磁悬浮隔振器，其角度自由度用接头球轴承解耦具有主体，其中套筒和下安装板由磁悬浮推力轴承，活塞气缸和套筒支撑通过气缸空气轴承表面进行润滑和支撑，上安装板和下安装板之间的角度自由度用接头球轴承分离; 引入了包括音圈电机，位移传感器，限位开关，控制器和驱动器的位置闭环控制系统，并且精确地控制了上安装板和下安装板之间的相对位置。

7. 发明授权

US09383574B2 Translation mirror based beam steering mechanism with ultrahigh frequency response and high sensitivity 有权
标题翻译：具有超高频响应和高灵敏度的平移镜基光束转向机构
公开(公告)号：US09383574B2
公开(公告)日：2016-07-05
申请号：US13980036
申请日：2012-09-28
申请人： Harbin Institute of Technology
发明人： Jiubin Tan , Fan Zhu , Jiwen Cui
IPC分类号： G02B26/08 , G02B26/10 , G01S7/481 , H01S3/00 , G01S17/42
CPC分类号： G02B26/0816 , G01S7/4817 , G01S17/42 , G02B26/0858 , G02B26/101 , H01S3/0071
摘要： This invention relates to a beam steering mechanism with ultrahigh frequency response and high sensitivity, which is based on the translation of two mirrors. Beam steering is achieved by the translations of two mirrors in the X axial mirror group and Y axial mirror group. The two translation mirrors are located at the output ends of two PZT actuators, and are directly actuated by the two PZT actuators. The dynamic characteristics of the two translation mirrors are always exactly the same as the output characteristics of the PZT actuators. There is no mechanical translation loss in this beam steering mechanism, and so, the beam steering mechanism has an ultrahigh frequency response and high angular deflection sensitivity.
摘要翻译：本发明涉及一种具有超高频响应和高灵敏度的光束转向机构，其基于两个反射镜的平移。光束转向通过X轴反射镜组和Y轴反射镜组中的两个反射镜的平移来实现。两个平移反射镜位于两个PZT执行器的输出端，并由两个PZT执行器直接驱动。两个平移反射镜的动态特性总是与PZT执行器的输出特性完全相同。在该光束转向机构中没有机械平移损耗，因此，光束转向机构具有超高频响应和高角度偏转灵敏度。

8. 发明授权

US09145945B2 Active vibration isolation device based on electromagnetic and aerostatic floatation 有权
标题翻译：基于电磁和空气静力浮选的主动隔振装置
公开(公告)号：US09145945B2
公开(公告)日：2015-09-29
申请号：US14376412
申请日：2013-02-26
申请人： HARBIN INSTITUTE OF TECHNOLOGY
发明人： Jiubin Tan , Lei Wang , Rongwei Wen , Bo Zhao , Yuanyuan Yang
IPC分类号： F16M13/00 , F16F15/023 , F16F15/03
CPC分类号： F16F15/023 , F16F15/022 , F16F15/0232 , F16F15/03
摘要： This invention relates to an active vibration isolation installation based on electromagnetic and aerostatic floatation which is essential for the super-precision measurement and manufacture. It mainly consists of an isolation platform, an intermediate sleeve and a base. The isolation platform supports any object(s) placed on the platform and is supported by the intermediate sleeve. And the intermediate sleeve is supported on the base which is fixed on the ground. This invention uses the combination electromagnetic and aerostatic floatation to achieve large bearing capacity while excellent vibration isolation performance is maintained. This invention realizes automatic control of stiffness, using closed-loop speed control methods. It is therefore conclude that this invention can impose an excellent inhibitory action on the vibration originating from surroundings and the platform itself.
摘要翻译：本发明涉及一种基于电磁和空气静力浮选的主动隔振装置，这对于超精密测量和制造至关重要。它主要由隔离平台，中间套筒和底座组成。隔离平台支撑放置在平台上并由中间套筒支撑的任何物体。并且中间套筒支撑在固定在地面上的基座上。本发明使用电磁和空气静电浮选的组合来实现大的承载能力，同时保持优异的隔振性能。本发明使用闭环速度控制方法实现刚度的自动控制。因此，可以得出结论，本发明可以对来自周围环境的振动和平台本身施加优异的抑制作用。

9. 发明申请

US20230061816A1 Air-coupled Ultrasonic Detection Method and Device Based on Defect Probability Reconstruction Algorithm 有权
公开(公告)号：US20230061816A1
公开(公告)日：2023-03-02
申请号：US17552493
申请日：2021-12-16
申请人： Harbin Institute of Technology
发明人： Weijia Shi , Bingquan Wang , Bo Zhao , Jiubin Tan
IPC分类号： G01N29/44 , G01N29/06 , G01N29/22 , G01N29/34
摘要： The disclosure discloses an air-coupled ultrasonic detection method and device based on a defect probability reconstruction algorithm. The method includes the following steps: determining the excitation frequency of a transmitting air-coupled transducer according to a frequency dispersion curve of guided waves and the thickness of a to-be-detected piece; determining the group velocity of an antisymmetric mode according to the excitation frequency, and determining the inclination angle of the transmitting/receiving air-coupled transducer according to the Snell law; obtaining an initial waveform of a defect-free test piece as reference data by adopting a same-side penetration method, then rotating the transmitting/receiving transducer by 360 degrees by taking the Z direction as an axis at preset angle intervals by adopting a rotary scanning method, collecting N groups of signal data of the to-be-detected piece again, comparing the N groups of signal data with the reference data to determine whether the signal characteristics have great changes or not, calculating the defect distribution probability on the to-be-detected piece, and carrying out defect imaging on a rotating coverage area of the transmitting/receiving air-coupled transducer according to the defect distribution probability. According to the method, the precision of traditional air-coupled ultrasonic X and Y scanning detection is improved, and compared with a complex imaging technology, the air-coupled ultrasonic detection method consumes less time.

10. 发明授权

US10331044B2 Dynamic-magnetic steel magnet levitation double-workpiece-stage vector arc switching method and apparatus based on wireless energy transmission 有权
公开(公告)号：US10331044B2
公开(公告)日：2019-06-25
申请号：US16069198
申请日：2016-08-31
申请人： HARBIN INSTITUTE OF TECHNOLOGY
发明人： Yongmeng Liu , Jianwei Wu , Jiubin Tan
IPC分类号： G03F7/20 , H01L21/02
摘要： A dynamic-magnetic steel magnetic levitation double-workpiece-stage vector arc switching method and apparatus based on wireless energy transmission, falling within the semiconductor manufacturing equipment technology. The apparatus comprises a support frame (1), a balance mass block (2), magnetic levitation workpiece stages (4a, 4b), a workpiece stage measurement apparatus, wireless energy transmission apparatuses (5a, 5b) and a wireless energy receiving apparatus (406), wherein the two workpiece stages work between a measurement site (11) and an exposure site (12); a laser interferometer (6) is used to measure the positions of the workpiece stages; the wireless energy transmission apparatuses (5a, 5b) are used to provide energy for a sensor (407) in a micro-drive stage; the workpiece stages are driven using a magnetic levitation planar electrical motor; and during a double-workpiece-stage switching process, the planar electrical motor is used to drive the two workpiece stages so as to achieve single-beat arc quick switching. By using the method and apparatus, the problem that an existing stage switching scheme has many beats, a long track, many start-stop links and a long time for stabilization is solved, thereby reducing the stage switching links, shortening the stage switching time, and improving the productivity of a lithography machine.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式