99 results about "Transverse magnetic" patented technology

Magnetic saturation detectors for power converters are presented herein. An energy transfer element has an input power winding wrapped around a center post. Single or multiple transverse windings are positioned perpendicular to the input power winding and coupled to receive a transverse current that provides a transverse magnetic flux density within the energy transfer element. The transverse magnetic flux density produces a transverse voltage waveform. A voltage detection circuit is configured to receive the transverse voltage waveform and detect a change in the sign of the slope of the transverse voltage waveform. The change in the sign of the slope indicates magnetic saturation. The voltage detection circuit is configured to detect an occurrence of an extremum in the transverse voltage waveform. The extremum indicates the change in the sign of the slope.

The invention relates to a transverse magnetic circuit module complementary magnetic flux reverse motor, comprising: a stator assembly comprising a plurality of U-shaped stator cores arranged circumferentially, a front module permanent magnet, a rear module permanent magnet, a front module armature winding and a rear module armature winding; and the rotor assembly comprises a front rotor module and a rear rotor module which are axially distributed and have the same structure, rotor salient pole teeth are respectively arranged on the inner side surfaces of the front rotor module and the rear rotor module along the circumferential direction, and the rotor salient pole teeth on the front rotor module and the rotor salient pole teeth on the rear rotor module are arranged in a staggered manner along the circumferential angle. The electromagnetic torque density is remarkably improved through magnetic circuit topology optimization, more excellent power output characteristics are achieved, meanwhile, armature winding turn chain magnetic flux directions of the front module and the rear module are opposite, the phase difference is 180 deg electrical angle, magnetic linkages of the two modules are complementary, even harmonics of the magnetic linkages are counteracted after synthesis, in addition, the unique stator structure improves the air gap magnetic density of the motor, and the motor efficiency is improved. And the motor power density is improved, and the application and popularization value is extremely high.

The invention relates to an optomechanical system for monitoring the mechanics of a sample, comprising: a photonic crystal (1, 2) with a substrate (1) and an array of transversally extending nanopillars (2) defining at least one row (3); a nanopillar cavity (4) for confining light and acting as a sensor for the sample; and a mirror region (5) formed in the array of nanopillars (2), the cavity (4) and the mirror region (5) being configured to prevent the propagation of light with Transverse-Magnetic (TM) polarization; the nanopillars (2) being spatially arranged to create a gradient of effective refractive index along the cavity (4), the maximum value of the effective refractive index inside the cavity (4) being lower than the effective refractive index of the mirror region (5).

The invention relates to the technical field of filtering, in particular to a multi-layer magnetic suction type filtering device for a modular linkage dust collection workstation, which comprises a shell, a hopper, an air inlet pipe, an air speed sensor, a longitudinal moving assembly, an air outlet pipe, a transverse moving assembly, a hydraulic cylinder, a longitudinal magnetic part and a transverse magnetic part, the air inlet pipe is connected to the lower end of the left side of the shell, the air speed sensor is connected to an inner cavity of the air inlet pipe, the longitudinal moving assembly is connected to the rear side of the shell, the air outlet pipe is connected to the upper side of the shell, the transverse moving assembly array is connected to the front side of the shell, and the hydraulic cylinder is connected to the rear side of the shell. The output end of the hydraulic cylinder is connected with the longitudinal moving assembly, the longitudinal magnetic piece array is connected to the front side of the longitudinal moving assembly, and the transverse magnetic piece array is connected to the rear side of the transverse moving assembly. The magnetic field intensity of the windward side of the magnetic bar is changed by changing the arrangement position of the magnetic bar, and the filtering effect of the magnetic bar on large scrap iron is effectively improved.

A device for measuring a property of a substrate comprises an enclosure, two resonators, and two probes. The substrate has a top surface, and the enclosure defines a cavity for placing the substrate. The resonators extend into the cavity of the enclosure. The probes extend into the cavity, and each of the probes comprises a loop that extends about an axis that is substantially parallel to the top surface of the substrate so that the probes are operable to excite a transverse magnetic mode signal in the cavity.

The present invention provides an on-chip photonic circuit for generation of a polarization-entangled photon-pair state by utilizing the optical nonlinearities in a novel configuration comprising dual micro-resonators, with nearly degenerate transverse-electric- and transverse-magnetic-polarized cavity resonances for the two resonators coupled in series to a common bus waveguide, wherein, the pump laser and the generated signal and idle photons can be coupled in and out the photonic circuit.

The present invention provides a chip detection method and device, which relate to the technical field of lasers. The chip detection method provided by the present invention includes the following steps: step S10. obtaining a near-field distribution image of transverse electric mode light and a near-field distribution image of transverse magnetic mode light emitted by the chip to be detected; step S20. calculating the value of the polarization ratio K of the chip to be detected based on the near-field distribution image of the transverse electric mode light and the near-field distribution image of the transverse magnetic mode light, wherein the polarization ratio K is the polarization ratio of the transverse electric mode light or the transverse magnetic mode light; step S30. comparing the calculated value of the polarization ratio K with a standard range; when the value of the polarization ratio K is within the standard range, determining that the stress of the chip to be detected is qualified; when the value of the polarization ratio K is not within the standard range, determining that the stress of the chip to be detected is unqualified; step S40. for the chip to be detected with unqualified stress, obtaining the defect position on the chip to be detected that causes the unqualified stress based on the near-field distribution image of its transverse magnetic mode light.

A polarization beam splitter includes an input port, first and second output ports, and a polarization splitting region coupled between the input port and the first and second output ports. The input port is adapted to receive guided optical signals that are polarization multiplexed, including a transverse electric (TE) optical signal and a transverse magnetic (TM) optical signal. The polarization splitting region includes a pattern of at least two materials having different refractive indexes. The pattern is shaped to demultiplex the TE and TM optical signals by directing a first power majority of the TE optical signal received at the input port to the second output port via asymmetrical power splitting while directing a second power majority of the TM optical signal received at the input port to the first output port via multipath interferometry.

Embodiments of the present disclosure relate to a method of optical device metrology and a device. The method includes introducing a light beam into an optical device during a first time period at an initial angle, the optical device including an anisotropic crystal optical substrate, the optical device including a first surface and a second surface, propagating the light beam through the optical device, the light beam including a transverse electric polarization light and a transverse magnetic polarization light, measuring a plurality of measurements, during the first time period, the plurality of measurements including a quantity of the transverse electric polarization light and the transverse magnetic polarization light transmitted from a plurality of locations on the first surface or the second surface during the first time period, wherein the measuring is performed by a detector, and using the measurements during the first time period to determine optical loss.

An aerosol-generating device for generating an aerosol by microwave heating of an aerosol-forming substrate contained in a substrate portion of a cylindrical aerosol-generating article is provided, the aerosol-generating device including: a microwave generator configured to generate a microwave signal; a cylindrical microwave cavity configured to removably receive at least the substrate portion of the cylindrical aerosol-generating article; and a coaxial feed exciter operatively connected to the microwave generator and coupled to the cylindrical microwave cavity such as to feed the microwave signal into the cylindrical microwave cavity and excite at least one specific transverse magnetic mode or transverse electric mode within the cylindrical microwave cavity when the substrate portion of the cylindrical aerosol-generating article is received in the cylindrical microwave cavity. An aerosol-generating system including the aerosol-generating device and a cylindrical aerosol-generating article including a distal substrate portion containing an aerosol-forming substrate is also provided.

The present application discloses a magnetic control coil, comprising: a coil support structure and N pairs of coil assemblies, wherein the coil assemblies are arranged in a planar manner along the surface of the coil support structure; N is an integer not less than 1. The present application employs a plurality of surface-type coils to replace conventional rectangular cross-section circular, racetrack-shaped, or saddle-shaped coils, which can enhance the generation efficiency of transverse magnetic fields, thereby effectively suppressing the introduction of impurities and the generation of defects during crystal manufacturing processes and improving the efficiency and quality of crystal manufacturing.

The present invention relates to a Mach-Zehnder interferometer cascade comb filter and a wavelength division multiplexer / demultiplexer to solve the technical problems of wavelength sensitivity introduced by the wavelength division multiplexer of the existing cascade Mach-Zehnder interferometer and its unsuitability for transverse magnetic waves. The filter comprises n-stage comb filter units connected in series, and the m-th stage comb filter unit comprises 2 m A comb filter is provided, each comb filter includes a Mach-Zehnder interferometer, and the Mach-Zehnder interferometer includes a first optical coupling component, a transmission waveguide, and a second optical coupling component arranged in sequence along the transmission direction of the light wave; the first transmission waveguide in the transmission waveguide is provided with a phase delay waveguide, and after TE polarized light and TM polarized light pass through the phase delay waveguide, the phase difference between the TE polarization and the TM polarization is 2πA, where A is a positive integer, and the group refractive index difference between the TE polarization and the TM polarization is within 15%.

The invention discloses an efficient transverse magnetic inductor with adjustable magnetic flux density for heating special-shaped edges of metal plates, which belongs to the technical field of induction heating of metal materials and comprises a first inductor main body and a second inductor main body which are symmetrically arranged up and down. The first inductor body comprises a first straight copper pipe and a first magnetic flux density adjustable magnetism gathering structural body, and the first magnetic flux density adjustable magnetism gathering structural body is arranged on the first straight copper pipe. The second inductor body comprises a second straight copper pipe and a second magnetic flux density adjustable magnetism gathering structural body, and the second magnetic flux density adjustable magnetism gathering structural body is arranged on the second straight copper pipe. According to the efficient transverse magnetic inductor with the adjustable magnetic flux density for heating the special-shaped edge of the metal plate, accurate local heating is conducted on the special-shaped edge, energy consumption can be reduced, the rate of finished products can be increased, and the product quality can be improved.

The application provides a polarization management device and a closed-loop control method thereof. The polarization management device comprises: a polarization separation unit configured to receive an input optical signal and split the input optical signal into a first transverse electric mode optical component and a first transverse magnetic mode optical component; a polarization conversion unit configured to receive the first transverse magnetic mode optical component and convert the polarization state of the first transverse magnetic mode optical component to obtain a second transverse electric mode optical component; a first phase adjustment unit configured to perform first phase adjustment on the second transverse electric mode optical component to obtain a third transverse electric mode optical component; a second phase adjustment unit configured to receive the first transverse electric mode optical component and the third transverse electric mode optical component, perform second phase adjustment, and combine the first transverse electric mode optical component and the third transverse electric mode optical component to obtain a coupled optical signal; a sampling monitoring unit configured to sample the coupled optical signal to obtain a monitoring optical signal, split the monitoring optical signal into a fourth transverse electric mode optical component and a second transverse magnetic mode optical component; and a controller configured to adjust the working state of the first phase adjustment unit and / or the second phase adjustment unit based on the fourth transverse electric mode optical component and the second transverse magnetic mode optical component.

This invention discloses a quasi-BIC optical filter and its chiral modulation method, relating to the field of optical metasurface technology. The method includes: an optical filter based on a metasurface structure, the metasurface comprising several square lattices, each square lattice having an interrupted annular groove etched on it; disrupting the in-plane inversion structural symmetry of the annular grooves in the square lattices of the metasurface to achieve a metasurface-supported quasi-BIC mode, specifically by extending one end of one of the interrupted annular grooves by a certain distance while simultaneously shortening the adjacent ends of adjacent grooves by the same distance, obtaining the transmittance at the quasi-BIC frequency point when switching the transverse magnetic wave in the x-direction of the metasurface to RCP and LCP, and chiral modulation of the circular dichroism of the metasurface based on the transmittance of RCP and LCP.

An optical integrated device may include a substrate, a first laser diode oscillating in a transverse magnetic mode (TM mode) on the substrate, and a second laser diode oscillating in a transverse electric mode (TE mode) on the substrate, wherein the first laser diode includes a first body in a shape of a disk, and through holes penetrating the first body.

An integrated electro-optical non-reciprocal mode converter based on birefringent crystal refractive index matching comprises a chip, the upper layer of the chip is an electro-optical material film with birefringent characteristics, a mode converter is prepared on the electro-optical material film, and the mode converter is a two-port device; the first port is used for receiving an input optical signal of a mode 1 and allowing the optical signal to enter the mode converter; and the second port is used for outputting the converted optical signal in the mode 2. The refractive index difference of a birefringent material to a transverse electric mode (TE) and a transverse magnetic mode (TM) is utilized to realize the pre-coarse matching of the refractive indexes of TE and TM modes, and then the fine matching of the refractive indexes and wave vectors is realized in combination with electro-optical modulation, so that the integrated electro-optical mode converter insensitive to the process is realized. The device is simple in structure and has a wide application prospect.

An integrated optical diversity receiving device addresses the high power consumption problem of correcting for phase distortion and beam pointing errors in existing free-space optical communications, belonging to the field of optical communications. The invention comprises: free-space light focused by a lens is received by a multimode / few-mode optical fiber; the multiple modes of light beams received by the multimode / few-mode optical fiber enter a photon lantern; the photon lantern performs mode demultiplexing and is then coupled into a single-mode optical fiber array; each light beam in the single-mode optical fiber array enters a polarization splitter / rotator / combiner through an edge coupler; the polarization splitter / rotator / combiner separates the incoming light beams into transverse electric (TE) and transverse magnetic (TM) modes, then rotates the separated TM polarization state light to a TE polarization state; the rotated TE polarization state light is combined with the separated TE polarization state light before entering an MZI network; the MZI network is used to achieve optical coherent beam combining; and a control circuit controls the combining of the light beams in the MZI network.

This invention discloses a transverse flux linear-rotary switched reluctance generator with an overall axisymmetric decoupled drive structure. The stator module is composed of upper, middle, and lower stators layered axially. Single-phase linear windings are evenly distributed on the outermost salient-pole stator teeth, while three-phase rotating windings are arranged on the innermost stator yoke. The moving parts include a centrally located double-sided segmented rotor and three external mover flux rings. The internal rotating stator is interlocked with the external linear stator, resulting in a compact structure. Based on the transverse flux principle, the rotor and mover movements are perpendicular to the air gap flux, and the linear and rotating magnetic circuits are relatively independent, resulting in minimal magnetic coupling and electromagnetic decoupling. The control circuit uses fewer power switching devices, supporting multi-mode drive including series, parallel, and hybrid series-parallel windings, thus widening the speed range. This motor features low-speed, high-torque characteristics, eliminating the need for a gearbox in hybrid power generation systems, and is suitable for low-speed direct-drive combined power generation applications such as wave energy and ocean current energy.

The present application relates to battery processing and manufacturing technology field, provide a kind of transverse magnetic flux radio frequency induction heating battery pole piece blank area wrinkle removal method, megahertz level radio frequency signal is output by radio frequency power supply, after impedance matching, lossless feed into transverse magnetic flux inductor, generate transverse magnetic force line to make eddy current closed in battery pole piece plane. Again with active water-cooling magnetic flux shield plate generates reverse magnetic field shielding magnetic flux, and through built-in water-cooling channel and timely heat dissipation. While by supporting support roller keeps inductor and pole piece gap constant, cooperate temperature sensor closed loop temperature control and heat to softening state, by production line winding mechanism drive plastic extension of softening zone, finally through frozen roll quenching, overall complete battery pole piece complete heat treatment process. The present application also provides a kind of device, the method and device realize ultra-thin battery pole piece effective induction heating and online annealing. Both can efficiently eliminate pole piece processing residual stress, smooth wrinkle defect, and whole process without damaging coating structure, no powder crack problem.

The invention relates to the technical field of geological radar detection, in particular to a multi-frequency polarization radar pipe-jacking soil body detection method, device and equipment and a storage medium. Comprising the steps of generating a multi-frequency electromagnetic detection signal and applying the signal to an underground medium; a multi-frequency electromagnetic detection signal acts on an underground medium in a transverse electric mode and a transverse magnetic mode to form a multi-polarization detection condition; collecting a four-channel reflection response signal generated by the underground medium under a multi-frequency and multi-polarization detection condition; processing the four-channel reflection response signals, namely aligning the acquired four-channel reflection response signals with time based on a unified hardware clock trigger signal, and analyzing difference characteristics among the reflection response signals under different frequencies and different polarization modes; and according to the difference characteristics, the distribution condition of irregular target bodies and layered interfaces in the underground medium is judged, and the dense state of the soil body in the pipe jacking construction area is obtained. According to the invention, accurate determination of the compaction state of the soil body in the pipe-jacking construction area is realized.

The utility model discloses a winding structure for eliminating transverse magnetic leakage, which comprises a primary side coil winding, a primary side coil upper end part insulator, a primary side coil lower end part insulator, a secondary side coil winding, a secondary side coil upper end part insulator, a secondary side coil lower end part insulator and a secondary side auxiliary winding, the primary side coil upper end insulator and the primary side coil lower end insulator are arranged at the upper end and the lower end of the primary side coil winding respectively, the secondary side coil upper end insulator and the secondary side coil lower end insulator are arranged at the upper end and the lower end of the secondary side coil winding respectively, and the secondary side auxiliary winding is located at the lower end of the secondary side coil winding. And the secondary side auxiliary winding is positioned on the insulating upper side of the lower end part of the secondary side coil. The utility model has the beneficial effects that the transverse magnetic leakage of the transformer can be effectively eliminated, the axial impact force during the closing of the transformer is effectively reduced, the transformer is not damaged during operation, and the product performance is more stable.

A passive light wave conversion module for converting an incoming light wave having an undefined polarization into a light wave having a defined polarization, being one of Transverse Electric, TE, polarization or Transverse Magnetic, TM, polarization, the passive light wave conversion module comprising an optical splitter for splitting incoming light, two 50% input polarization converters for converting power in the incoming polarization for 50%, wherein the input polarization converters are connected to the optical splitter, at least one 50% output polarization converter for converting power in the polarizations for 50%, a bimodal phase shifter for introducing phase shifts between the TE polarization and the TM polarization, wherein the bimodal phase shifter is connected to the two 50% input polarization converters and the least one 50% output polarization converter.

The invention discloses an asymmetric longitudinal and transverse magnetic composite contact structure and a vacuum arc-extinguishing chamber. The contact structure comprises a static contact and a moving contact. The static contact comprises a central conductive base, a spiral conductive structure and a first conductive contact part; the central conductive base is used for connecting a static conductive rod; the spiral conductive structure is connected between the central conductive base and the first conductive contact part and is configured to generate a longitudinal magnetic field at the first conductive contact part when current flows through the spiral conductive structure; the moving contact comprises a second conductive contact part and is electrically connected with the moving conductive rod; each of the first conductive contact part and the second conductive contact part comprises a central connecting part and a plurality of conductive arms extending outwards in the radial direction from the central connecting part; and the spiral conductive structure of the static contact is configured to generate a transverse magnetic field when current flows between the conductive arm of the first conductive contact part and the corresponding conductive arm of the second conductive contact part. According to the invention, a more suitable magnetic field can be generated according to the arc position during breaking, and the reliability and operation safety of breaking are improved.

The invention relates to the technical field of current transformers, in particular to a wide-range current transformer. The transformer comprises an iron core, a winding, a multi-layer electromagnetic shielding layer and a shell, the winding is wound on the iron core, the multi-layer electromagnetic shielding layer is arranged around the iron core and the winding, and all the parts are fixedly installed in the shell. The iron core is made of customized ultracrystalline alloy through winding, transverse magnetic treatment and vacuum annealing, the machining error is controlled within + / -5 microns, the magnetic performance is excellent, and the high-temperature stability is high; the winding is made of high-purity oxygen-free copper enameled wires and is wound in a layered, segmented and nanoscale precision mode, and polyimide films are arranged between layers for insulation. The multiple electromagnetic shielding layers are of a composite structure of permalloy on the inner layer and copper on the outer layer, and full-band interference resistance is achieved through collaborative optimization. According to the invention, high-precision measurement is realized in a rated current range of 10%-200%, and the device is suitable for electric energy metering, new energy power generation and other scenes, and has the characteristics of accurate measurement, good stability, strong interference resistance and excellent dynamic response.

An optical chip includes: an optical port, coupled to a fiber and configured to receive a first optical signal from the fiber, where the first optical signal includes a component in a transverse magnetic TM mode; a polarization splitter and rotator PSR, configured to perform first processing on the first optical signal to generate a second optical signal, where the second optical signal is in a transverse electric TE mode, and the second optical signal is a single-channel multi-wavelength optical signal; at least one wavelength demultiplexer DeMux, configured to perform second processing on the second optical signal to generate a third optical signal, where the third optical signal is a multi-channel single-wavelength optical signal; and a photodetector array, configured to convert the third optical signal into an electrical signal. The optical port, the PSR, and the at least one DeMux are made of silicon nitride SiN.

The bidirectional magnetic crushing device for the ferrite magnetic sheets comprises a rack, the rack has a magnetic sheet conveying function, and a longitudinal magnetic crushing mechanism and a transverse magnetic crushing mechanism are sequentially arranged on the rack in the moving direction of the magnetic sheets; the longitudinal magnetic crushing mechanism is perpendicular to the transverse magnetic crushing mechanism, the transverse magnetic crushing mechanism is provided with a sensor, and the sensor can identify magnetic material sheets entering the transverse magnetic crushing mechanism. According to the bidirectional magnetic crushing device for the ferrite magnetic material sheet, uniform magnetic crushing of the magnetic material sheet is realized through the arrangement of the transverse magnetic crushing mechanism and the longitudinal magnetic crushing mechanism, so that the crushed magnetic material sheet is uniform in particle shape, uniform and round in edge crack and high in product percent of pass, and the automation degree of the magnetic crushing device is improved through the arrangement of a sensor.

The application provides a nuclear magnetic resonance gyroscope magnetic field compensation method based on Xe atomic frequency harmonic signals. First, the phase-locked loop is used to measure the Xe atomic magnetic moment precession signals in the nuclear magnetic resonance gyroscope, and the measurement results are fed back to the magnetic field transverse coil to maintain the stable precession of the Xe atomic transverse magnetic moment. Then, the frequency components of the measured Xe atomic magnetic moment precession signals are analyzed, and the harmonic signal amplitude oscillating at the Xe atomic resonance frequency contained in the frequency components is obtained. The harmonic signal amplitude is directly caused by the transverse residual magnetism, and the existence and size of the harmonic signal amplitude can represent the transverse residual magnetism state. With the harmonic signal amplitude as a reference quantity, the output of the magnetic field transverse coil of the nuclear magnetic resonance gyroscope is adjusted to minimize the harmonic signal amplitude, and the online monitoring and closed-loop compensation of the transverse residual magnetism are realized. The application can effectively suppress the influence of the transverse residual magnetism on the accuracy of the nuclear magnetic resonance gyroscope, and improve the long-term stability and measurement accuracy of the nuclear magnetic resonance gyroscope.

A method for a compact mid-infrared polarization splitter and rotator (PSR) that may include receiving an input signal at a waveguide, the input signal having a transverse electric (TE) mode and a transverse magnetic (TM) mode such that the TE mode may be a zero order or higher mode. The method may further include conditioning, by a taper of the waveguide, the input signal to convert the TM mode to an additional TE mode and bifurcating, after the conditioning and by a bifurcation section of the waveguide positioned after the taper, the input signal may be split into a first branch and a second branch of the waveguide. The method may further include outputting, out of the first branch, a first output signal having the TE mode and outputting, out of the second branch, a second output signal.