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Beijing Institute Of Technology patents


Recent patent applications related to Beijing Institute Of Technology. Beijing Institute Of Technology is listed as an Agent/Assignee. Note: Beijing Institute Of Technology may have other listings under different names/spellings. We're not affiliated with Beijing Institute Of Technology, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "B" | Beijing Institute Of Technology-related inventors


Fixed value residual stress test block and manufacturing and preservation method thereof

A fixed value residual stress test block, comprising a main body (1) and two welded blocks (2); the main body (1) and the welded blocks (2) are all rectangular metal blocks; the welded blocks (2) are welded onto the two opposite side surfaces of the main body (1); the main body (1) is deformed under the upper and lower pressures and generates residual stress. The fixed value residual stress test block has a simple structure.. ... Beijing Institute Of Technology

Mobility electrophoresis separation device, operating method thereof, and interface between liquid chromatography and mass spectrometry

The present invention provides a mobility electrophoresis separation device, its operating method, and an interface between liquid chromatography and mass spectrometry. The mobility electrophoresis separation device comprises a separation capillary, a syringe pump for injecting a buffer solution, a syringe for injecting a sample solution, and two electrodes disposed apart from each other on either side of the separation capillary. ... Beijing Institute Of Technology

Large-size bionic holographic three-dimensional dynamic display method with large field of view

The present invention relates to a large-size bionic holographic three-dimensional dynamic display method with large field of view. The method includes: a computer generated hologram (cgh) is loaded on a spatial light modulator; a large field angle is formed by changing the optical path through a microlens array or a diffractive optical element having same optical property with the microlens array disposed on a light-emitting surface of pixel structure of the spatial light modulator. ... Beijing Institute Of Technology

Physical parameter estimating method, physical parameter estimating device, and electronic apparatus

A physical parameter estimating method, a physical parameter estimating device, and electronic apparatus are disclosed. The method includes: reading a newton's rings fringe pattern of a unit to be measured; calculating a magnitude spectrum of an intensity distribution signal of at least one first-direction pixel set in the newton's rings fringe pattern under each fractional fourier transform (frft) order in a searching range of frft orders; determining a matched order of the intensity distribution signal according to the calculated magnitude spectrums; and estimating a physical parameter involved in the interferometric measurement according to at least the matched order. ... Beijing Institute Of Technology

Method and device for automatically routing multi-branch cable

The present disclosure provides a method and a device for automatically routing a multi-branch cable, so as to optimize branch points, thereby to acquire an optimal routing scheme and improve the routing efficiency. The method includes the steps of: acquiring position information about connection terminals of the multi-branch cable in a solution space in accordance with a cad model and a wiring table; determining position information about branch points of the multi-branch cable in the solution space in accordance with the position information about the connection terminals of the multi-branch cable and a first predetermined algorithm; generating a cable routing path map on the surface of obstacle in the solution space in accordance with the position information about the connection terminals of the multi-branch cable, the position information about the branch points and a second predetermined algorithm; and acquiring and outputting a cable model as a routing design result in accordance with the cable routing path map.. ... Beijing Institute Of Technology

Method and device for automatically routing multi-branch cable

The present disclosure provides a method and a device for automatically routing a multi-branch cable, so as to optimize branch points, thereby to acquire an optimal routing scheme and improve the routing efficiency. The method includes the steps of: acquiring position information about connection terminals of the multi-branch cable in a solution space in accordance with a cad model and a wiring table; determining position information about branch points of the multi-branch cable in the solution space in accordance with the position information about the connection terminals of the multi-branch cable and a first predetermined algorithm; generating a cable routing path map on the surface of obstacle in the solution space in accordance with the position information about the connection terminals of the multi-branch cable, the position information about the branch points and a second predetermined algorithm; and acquiring and outputting a cable model as a routing design result in accordance with the cable routing path map.. ... Beijing Institute Of Technology

System and method for reducing the space charge effect in a linear ion trap

The present invention provides a system and a method for reducing the space charge effect in a linear ion trap. The system includes a linear ion trap, a first ac power supply, a second ac power supply, and a rf power supply. ... Beijing Institute Of Technology

Low complexity method for reducing papr in frft-ofdm systems

The invention relates to a method for reducing the papr in frft-ofdm systems, which belongs to the field of broadband wireless digital communications technology. The method is based on fractional random phase sequence and fractional circular convolution theorem, which can effectively reduce the papr of the system. ... Beijing Institute Of Technology

Method and apparatus for simulating posture of flexible cable based on spring-mass model combining bending and torsion

A method for simulating a posture of a flexible cable based on a spring-mass model combining bending and torsion includes: establishing a physical property model of the cable, wherein a torsion property is represented by a torsion spring attached at each 55 cable segment; obtaining an initial position of each discrete mass point based on a total length of the cable and the number of the cable segments; identifying discrete mass points at both ends as fixed points, and obtaining their position information; calculating stress information of other discrete mass points whose position information is not determined based on the physical property model; sequentially calculating 10 10 equilibrium positions of the other discrete mass points by using the stress information and the initial positions to obtain their the position information; and simulating a stable posture of the cable based on the position information of the fixed points and the other discrete mass points.. . ... Beijing Institute Of Technology

Method of estimating the parameters and state of power system of electric vehicle

A method for estimating parameters and the state of a power system of an electric vehicle is disclosed. A multi-time scale model of the power system is set up; a parameter observer aekfθ based on a macroscopic time scale and a state observer aekf, based on a microcosmic time scale in the power system of the electric vehicle are initialized; time update is performed on the parameter observer aekfθ, the updating time span is one macroscopic time scale, and a priori estimation value {circumflex over (θ)}−l at the moment t1,0, of the parameter θ is obtained; time update and measurement update are performed on the state observer aekfx and circulated for l times, so that the time of the state observer aekfx is updated to the moment t0,1; and measurement update is performed on the parameter observer aekfθ, and the operation is circulated until the estimation is finished. ... Beijing Institute Of Technology

Electrospray ionization source and lc-ms interface

The present invention provides an electrospray ionization source, which includes: a capillary, including a spray tip; a first electrode which provides the spray tip with a spray voltage; and a second electrode. The electrical potential difference between the first electrode and the second electrode forms a separation electric field, which allows the electric field separation and electrospray ionization of the sample to be accomplished simultaneously, thereby improving the sensitivity of detection.. ... Beijing Institute Of Technology

Using fractional fourier transform nonlinear effects in optical fiber link monitoring methods

The present invention proposes a method for monitoring the nonlinear effect of an optical fiber link by fractional fourier transformation, frft, by calculating an optimal fractional order of the frft of the frequency-domain signal propagating through an optical fiber link, calculating the chromatic dispersion of an optical fiber link based on the optimal fractional order, compensating for chromatic dispersion to the signal, calculating an optimal fractional order of the frft for the time-domain signal following the compensation for chromatic dispersion, calculating the time-domain chirp caused by the nonlinear effect of an optical fiber link based on the optimal fractional order, and monitoring the nonlinear effect of an optical fiber link based on the absolute value of the calculated time-domain chirp. The method can be used for quantitatively monitoring the nonlinear effect of an optical fiber link in an optical fiber communication system consisting of different types of optical fibers.. ... Beijing Institute Of Technology

Divided-aperture laser differential confocal libs and raman spectrum-mass spectrum microscopic imaging method and device

The present disclosure relates to a divided-aperture laser differential confocal libs and raman spectrum-mass spectrum microscopic imaging method and device. In the present disclosure, the divided-aperture differential confocal imaging technology is combined with the spectrum technology and the mass spectrum detecting technology, high-spatial resolution form imaging is performed on a sample by utilizing a minute focusing spot of a divided-aperture differential confocal microscope processed by using the super-resolution technique, a mass spectrum detection is performed on charged molecules or atoms in a sample microzone by using a mass spectrum detecting system, a microzone spectrum detection is performed on spectrum excited by the focusing spot of a divided-aperture differential confocal microscope system by using a spectrum detecting system, and high-spatial resolution and high-sensitivity imaging and detection of complete composition information and form parameter of the sample microzone are implemented by using complementary advantages and structural fusion in laser multi-spectrum detection.. ... Beijing Institute Of Technology








ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009



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