238 results about "Incident wave" patented technology

The invention relates to a tide level obtaining method and system based on an OWC wave energy conversion device. The method comprises the following steps: constructing an energy loss prediction model in the air chamber; acquiring field incident wave energy, reflected wave energy, water potential energy increment, kinetic energy increment and pneumatic output energy at the current time period; inputting incident wave energy and reflected wave energy into the model to obtain predicted energy loss; and the tide level variation is solved based on the energy conservation relational expression, and the current tide level is calculated. The system comprises an energy loss prediction module, a wave energy acquisition module, a water body energy acquisition module, a pneumatic output acquisition module, an energy loss calculation module, a tide energy solving module and a tide level calculation module, which cooperatively realize the method. According to the scheme, an external tide gauge station is not needed, the local sea area tide level can be inversed in situ, at high frequency and with high precision, the method is suitable for an OWC-breakwater fusion scene, and cooperative operation of a port and ocean energy is supported.

This invention provides a split Hopkinson bar device for achieving single-pulse loading, comprising an incident bar, a transmission bar, an incident wave-catching unit, and a stress wave generating unit. The incident wave-catching unit includes an incident wave-catching sleeve and an absorbing bar. One end of the absorbing bar is spaced apart from the incident bar flange, and the other end is connected to the absorbing bar flange. The incident wave-catching sleeve is fitted around the absorbing bar, with its two ends respectively fitting against the absorbing bar flange and the incident bar flange. The compressive stress wave generated by the stress wave generating unit is reflected by the incident bar flange to form a tensile stress wave. After loading the sample, a portion of the stress wave is reflected back as a compressive wave and absorbed by the incident wave-catching unit. This solves the problem of multiple reflections and interference in traditional Hopkinson bars, achieving pure single-pulse tensile loading. The device is compact, has high energy utilization, and is suitable for testing the dynamic mechanical properties of materials.

The invention provides a composite material damage imaging method and system, and belongs to the technical field of material detection.The composite material damage imaging method comprises the steps that original signals are processed through a frequency domain analysis method, and environmental noise in the signal acquisition process is filtered out; establishing a full wave field data energy curve based on the original signal after the environmental noise in the signal acquisition process is filtered out, and analyzing the attenuation characteristic and the global distribution condition of wave field energy; compensating the original signal based on the attenuation characteristic, obtaining a compensation wave field based on the compensated original signal, and selecting a time window of damage imaging based on the global distribution condition of the energy of the compensation wave field; constructing a damage index based on a wave field gradient, and calculating a wave field damage matrix; and calculating a spatial distribution matrix of damage indexes by adopting an MS effective value based on a time window and a wave field damage matrix of damage imaging, and performing image fusion based on the spatial distribution matrix to create a final damage image. According to the method, the influence of strong incident wave components on damage identifiability is inhibited, and accurate identification of multiple damages is realized.

The application provides a kind of ice constant temperature dynamic mechanical property testing device, belongs to ice detection technical field, including launch subassembly, impact lever, incident support, incident lever, sample support, transmission support, transmission lever, data acquisition module and data processing module, the end face of impact lever towards incident lever is equipped with several spaced convex structures, the end face of incident lever towards impact lever is equipped with shaping piece, shaping piece is used to extend the rising time of incident stress wave that incident lever transmits to ice sample, the end face of incident lever towards ice sample is equipped with wave modulation module, wave modulation module is used to realize the wave impedance continuous gradient matching of incident stress wave from incident lever to ice sample, data processing module corrects the data collected by data acquisition module to obtain final incident wave strain and final transmission wave strain, and calculates the strain rate, stress and strain of ice sample.The application scheme improves the accuracy of ice constant temperature dynamic mechanical property test results.

The present application relates to the technical field of optical aspheric surface, especially points to a kind of free curved surface characterization method based on CGH lens zero position compensation detection optical path, with the detection of free curved surface as the guide, based on zero position compensation detection principle, according to ray tracing method, Snell's law, diffraction principle and equal optical path principle, using the parameters required by interferometer incident wave front as plane wave, compensator as single CGH lens zero position compensation detection system indirectly characterizes free curved surface shape, by using XY polynomial and Zernike standard phase polynomial, the mathematical description of free curved surface is realized in design stage can determine its measurement scheme, and according to the characterization method self-defined a kind of aspheric surface type, called zero position free curved surface.The free curved surface characterization method improves the degree of freedom of free curved surface shape and the feasibility of zero position compensation method, reduces the detection difficulty of free curved surface shape, realizes the function of zero position free curved surface design can be detected.

The invention provides a curved surface polarization torsion reflecting surface and an antenna using the same, and belongs to the technical field of antennas. The curved surface polarization torsion reflection surface comprises a curved surface dielectric plate, and a metal bottom plate and an electromagnetic metasurface which are respectively arranged on the outer side and the inner side of the curved surface dielectric plate; the electromagnetic metasurface is formed by periodically arranging a plurality of single-layer electromagnetic metasurface units. The single-layer metasurface unit with the polarization torsion function is conformal on the curved surface, so that the technical problems that a traditional multi-layer planar polarization torsion structure is complex to process, curved surface conformal is difficult, and the performance is deteriorated after conformal are solved. The reflecting surface is preferably a paraboloid, so that the incident wave polarization torsion is realized, and the spherical wave can be converted into the plane wave to improve the antenna gain. The metasurface unit keeps good cross polarization reflection performance within the wide incidence angle range of 0-40 degrees, is suitable for curved surface conformal design, can be integrally formed through 3D printing, and is easy and convenient to machine and stable in performance.

The invention discloses a broadband low-scattering reflection surface based on a back-loaded active microstrip network, which integrates an antenna unit with the back-loaded active microstrip network to control the response of the low-scattering reflection surface to incoming waves. Wherein the antenna unit sequentially comprises a top dielectric matching layer, a dipole patch, a first dielectric substrate, a coupling capacitor metal disc, a second dielectric substrate, a metal floor and a third dielectric substrate from top to bottom; the back-loaded active microstrip network is arranged below the third dielectric substrate; after receiving an incident wave, the antenna unit transmits the incident wave into the back-loaded active microstrip network, and after network processing, the incident wave is radiated to a free space through the antenna unit; the back-loaded active microstrip network realizes phase control of TE polarized reflected waves by adjusting the on-off state of the PIN tube, and realizes absorption of TM polarized incoming waves by loading a resistor in the middle of the short-circuit microstrip line. According to the invention, low profile and miniaturization are ensured, and wave absorbing and active scattering regulation and control functions are realized at the same time.

The invention provides a diffusion screen and a display device. The diffusion screen and the display device can be applied to a vehicle-mounted system and a vehicle. When the diffusion screen provided by the invention is applied to the display device, the quality of a display image can be improved, so that the user experience is improved. Specifically, the diffusion screen comprises a first surface, a plurality of first main areas are distributed on the first surface, and each first main area comprises N1 first secondary areas. Each first area in the N1 first areas is a micro-lens array, meanwhile, the period of each first area is one of M periods included in the diffusion screen, and the M periods are used for matching diffraction angles of red light, green light and blue light in incident wavelengths. Specifically, the period of each first area is the distance between the centers of any two adjacent microlenses in the corresponding microlens array. Wherein N1 is an integer greater than or equal to 3, M is an integer greater than or equal to 3, and M is less than or equal to N1.

The application provides a method for aligning a microchip sensing device and a waveguide by measuring the intensity of reflected waves. Electromagnetic waves with different reflectivity on the sensing device and the chip structure adjacent to the sensing device are selected, and the electromagnetic waves are incident on the surface of the microchip through the waveguide. The position, angle and distance of the output port of the waveguide relative to the surface of the microchip are adjusted, so that the electromagnetic waves are vertically incident on the surface of the microchip and are reflected, and then re-enter the output port of the waveguide and propagate reversely in the waveguide. The method uses a waveguide element to separate the reflected waves from the incident waves, and measures the intensity of the reflected waves relative to the incident waves. By adjusting the horizontal position of the output port of the waveguide relative to the sensing device, and observing the jump of the intensity of the reflected waves when the incident area of the electromagnetic waves transitions from the sensing device to the chip structure adjacent to the sensing device, the boundary of the sensing device can be determined, and the electromagnetic waves output by the waveguide can be incident on the sensing device. The application can reduce the alignment cost and improve the signal coupling efficiency.

The invention belongs to the technical field of wave energy power generation control, and provides a wave energy efficient conversion device based on dynamic fixed-point wave gathering and a control method, and the efficient conversion device comprises a first reflected wave adjusting structure, a second reflected wave adjusting structure and a rotation driving unit; the first reflected wave adjusting structure and the second reflected wave adjusting structure can independently rotate around respective rotating shafts, the radial distance between the rotating shafts and the fixed point position is kept unchanged, so that the orientation of the generated reflected wave is independently adjusted, and the fixed point position is located in a constructive interference area of the incident wave and the reflected wave; the rotation driving unit is used for driving the first reflected wave adjusting structure and the second reflected wave adjusting structure to rotate independently. According to the efficient conversion device and the control method, by dynamically adjusting the reflection angles of the two reflected waves, the fixed point position is always located in the constructive interference area of the waves, and efficient conversion of wave energy under various sea conditions is achieved.

The present application relates to the technical field of optical aspheric surface, especially refers to a kind of splicing aspheric surface characterization method based on CGH lens zero position compensation detection optical path, with the detection of aspheric surface as the guidance, based on zero position compensation detection principle, according to ray tracing method, Snell's law, diffraction principle and equal optical path principle, using the parameters required by the zero position compensation detection system of interferometer incident wave front as plane wave, compensator as single CGH lens and diffraction surface as binary optical surface 3 or binary optical surface 4 to characterize aspheric surface surface shape, and according to the aspheric surface type defined by the characterization method, it is called zero position splicing aspheric surface.According to the splicing aspheric surface characterization method, the measurement scheme can be determined in the design stage through the mathematical description of splicing aspheric surface, which avoids the influence of stray light and projection distortion of CGH detection, reduces the detection difficulty of splicing aspheric surface surface shape, and realizes the function of zero position splicing aspheric surface design.

The utility model provides a material measuring system with a multi-line scanning function. The material measuring system comprises a plurality of signal modules, a plurality of reflecting structures and a driving mechanism, the signal module is at least used for generating a transmitting wave beam and receiving an incident wave beam; the reflection structure is used for reflecting the transmitting wave beam generated by the signal module to form an emergent wave beam; the reflecting surface of the reflecting structure and the transmitting beam of the signal module form a plurality of first angles, and the reflecting surface of the reflecting structure and the emergent beam form a plurality of second angles; the reflection structures and the signal modules are arranged in a one-to-one correspondence mode. And the driving mechanism is used for driving the plurality of reflection structures and / or the plurality of signal modules to rotate so as to realize multi-line scanning of the surface profile of the material. According to the invention, the driving mechanism drives the signal modules and / or the reflection structures to rotate, so that the reflection surfaces of the reflection structures and the emission beams of the signal modules form a plurality of first angles, and the reflection surfaces of the reflection structures and the emission beams form a plurality of second angles, and three-dimensional scanning of the surface of the material is realized.

A plasma generator by means of a resonant waveguide is disclosed. The plasma generator comprises: an annular or elliptical central waveguide that includes a plurality of slots on the inner side surface thereof; a first incident waveguide that is tangentially connected to the central waveguide to enable electromagnetic wave communication; an electromagnetic wave supply unit that transmits electromagnetic waves to the incident waveguide; and a plasma chamber that has an electromagnetic wave incident window which is positioned on an outlet side of the slots to seal the inside of the central waveguide, and through which electromagnetic waves introduced through the slots may be radiated to the outside.

A radio apparatus that has a high heat dissipation performance and can be manufactured at a low cost is provided. A radio apparatus includes a heat dissipation part that dissipates heat generated by a heat generation source to the outside. The heat dissipation part is composed of a solid material, and includes a heat dissipation plate and a plurality of heat dissipation fins provided in the heat dissipation plate, the plurality of heat dissipation fins being disposed on a side of the heat dissipation plate where a radiating element or a reflective element is disposed. The heat dissipation fins form a periodic structure along at least one direction on the heat dissipation plate. Tips of the plurality of heat dissipation fins form a virtual reflective surface that reflects incident waves to the plurality of heat dissipation fins.

The invention discloses a method and system for calculating a seismic oscillation amplification coefficient of a river valley field under SV wave incidence, and belongs to the technical field of rock-soil seismic engineering, and the method comprises the steps: building a model; analyzing an infinitesimal body; establishing a free field; establishing a scattering field; substituting boundary conditions; solving a matrix equation; and calculating an amplification coefficient. According to the method, a wave field caused by an irregular terrain of the earth surface is constructed by an interval decomposition strategy taking a terrain cuspidal point as a demarcation point, a method for calculating the seismic oscillation amplification coefficient of the river valley field under SV wave incidence is provided, and the influence of factors such as river valley geometric parameters, material parameters, the frequency and incident angle of incident waves and the like on the river valley seismic oscillation amplification coefficient is revealed; a theoretical basis is provided for aseismic design of major projects of river valleys; the calculation method is a semi-analytical method, reveals the physical nature of irregular terrains on seismic wave propagation and scattering, improves the calculation precision and efficiency, and can be used as a reference for verification of a numerical method.

The application discloses a kind of through type radio frequency microwave vector analysis device and method, device includes radio frequency front end and down conversion module, digital acquisition and processing module and control and interactive module.Radio frequency front end and down conversion module are used for the transmission of radio frequency signal, two-way coupling sampling and coherent down conversion;Digital acquisition and processing module are used for collecting signal and processing, obtain pure incident wave signal and reflected wave signal;Control and interactive module are used for controlling each module, and carry out man-machine interaction.The application is realized by using through type measurement architecture, under the premise that the signal transmission of measured system is not interrupted, realizes the online vector analysis of radio frequency signal, and does not need built-in signal source, and then complete vector parameter such as reflection coefficient, impedance, standing wave ratio can be accurately calculated.

Three-dimensional reconfigurable vector holographic double-layer cascade super device, design method and equipment belong to the field of holographic technology, solve the problem that reconfiguration of incident wave front often involves changing light source or polarizer operation, which is not only inconvenient but also cannot realize fast switching. The device includes: a hybrid cascade of radiative super surface and birefringent super surface, the intensity and polarization response of hologram in three-dimensional space is reconfigurable and highly customized. The rotatable radiative super surface can be used as an incident wave front modulator to excite the non-rotatable birefringent super surface. By introducing a gradient descent optimization inverse design method, numerical analysis and experimental verification of three-dimensional reconfigurable vector holography are demonstrated in the microwave region. The present application is suitable for integrated encryption devices and holographic display super devices.

The application discloses a kind of track train cable fault location's travelling wave signal denoising method and system, it is related to track train cable fault detection technical field.Wherein, the method includes: the original travelling wave signal generated by track train cable fault is collected;Wherein, original travelling wave signal includes the incident wave and reflected wave generated by fault point;Original travelling wave signal is preprocessed, removes direct current component, low-frequency noise and irrelevant interference component in signal, obtains the travelling wave signal after preprocessing;The travelling wave signal after preprocessing is input into VMD algorithm of variation modal decomposition, and the intrinsic mode decomposition is carried out to travelling wave signal, obtains multiple intrinsic mode components;Improved particle swarm optimization algorithm IPSO is introduced, and the optimal signal decomposition effect is used as objective function, and the key parameters of VMD algorithm are iteratively optimized, and the optimal parameter combination is obtained.The application solves the problems of insufficient denoising effect, signal waveform distortion and limited noise resistance in the prior art.

A spherical designer electromagnetic surface plasmon open resonator is provided. The open resonator includes a resonator inner core and a resonator outer shell. The resonator inner core is located in an inner center of the resonator outer shell, and the resonator inner core and the resonator outer shell are coaxial. The disclosure provides a device that implements the superscattering function for incident waves in all incident directions and in all polarization directions, and a spherical open resonator is implemented. The scattering cross section of the disclosure can be more than five times greater than that of a metal sphere of the same size, and the operating frequency can be flexibly designed. By utilizing the characteristic that the scattering cross section of the spherical designer electromagnetic surface plasmon resonator is much greater than its own geometric cross section, the electromagnetic super-scattering device can be implemented.

A refrigerator according to the present invention is provided with: a storage chamber capable of heating stored objects; and a medium heating mechanism capable of generating high-frequency electric power and supplying the high-frequency electric power to the storage chamber to generate an electric field in the storage chamber. The medium heating mechanism includes: an electrode disposed in the storage chamber; an oscillation circuit for supplying high-frequency electric power to the electrode; a matching circuit for performing impedance matching; the detection part is connected between the oscillation circuit and the matching circuit and is used for measuring the electric power of the incident wave and the electric power of the reflected wave; and a control unit. The control unit controls the oscillation circuit and the matching circuit on the basis of the incident wave electric power and the reflected wave electric power, and detects an abnormality in the incident wave electric power or the reflected wave electric power.

The application discloses a compact cross orthogonal scanning multilayer millimeter wave multi-beam array antenna, which comprises a two-port common-cavity Roofman lens feeding network structure and a common-aperture antenna layer, the two-port common-cavity Roofman lens feeding network structure is located at the bottom layer, and the common-aperture antenna layer is located above the common-cavity Roofman lens feeding network structure; the common-aperture antenna layer comprises a slot antenna layer and a patch antenna layer, the slot antenna layer is located at the bottom layer, and the patch antenna layer is located above the slot antenna layer. The application reduces the echo loss of each port, reduces the reflection of incident waves at the edge port, increases the isolation between the ports and between the two sub-lenses, and improves the working efficiency.

The present application relates to the technical field of material dynamic mechanical property testing, and discloses a self-adaptive Hopkinson bar experimental parameter real-time regulation method and system, which comprises the following steps: obtaining incident wave signals, reflected wave signals and transmitted wave signals; denoising the incident wave signals to obtain denoised waveforms; loading the denoised waveforms into a finite element model to perform transient dynamics calculation to obtain a simulated response set, and combining a dispersion equation model analysis to obtain a geometric dispersion delay spectrum; reconstructing a simulated distorted waveform from the geometric dispersion delay spectrum and calculating a constitutive matrix; loading the constitutive matrix into the finite element model to obtain a time-domain response sequence, combining a regression model prediction to obtain a comprehensive distortion prediction, and predicting a preliminary compensation amount through a neural network model; calculating an initial strain rate, correcting the preliminary compensation amount to obtain a corrected compensation amount, using the corrected compensation amount to perform distortion compensation, calculating a feedback strain rate, combining a constant strain rate to verify a strain rate deviation, and realizing a constant sample strain rate. The present method can realize constant sample strain rate.

The invention discloses an automatic sample clamping and bullet shooting system and method for a Hopkinson bar, the system comprises a cylinder, the output end of the cylinder is connected with a sleeve, a bullet is arranged in the sleeve, and an impact bar, an incident bar and a transmission bar are sequentially arranged along the bullet shooting path; a clamping unit is arranged at the end, away from the sample, of the transmission rod, the clamping unit pushes the transmission rod to move towards the incidence rod to clamp the sample, and the clamping unit and the air cylinder are connected with a master controller through lines. During operation, the system is initialized firstly; then the sample is placed between the incident bar and the transmission bar, and the clamping unit is driven to push the transmission bar to clamp the sample; the shooting bullet impacts the incident rod to generate incident stress pulse, and the strain gauge captures incident wave, reflected wave and transmitted wave signals; and after the gravitational wave ends, the clamping unit is reset. The problem that in the prior art, manual clamping affects the accuracy of experimental data is solved.

The application relates to the field of laser radar detection, in particular to a space target laser radar scattering cross section simulation method, device, equipment and medium. The method comprises the following steps: projecting a triangular facet to a pixel plane perpendicular to an incident wave to obtain a projected facet with a depth attribute; regarding a pixel located in the projected facet in a circumscribed rectangle of the projected facet as an area pixel, and calculating a weighted average value of depth values of three vertex pixels according to the relative position of the area pixel in the projected facet to obtain a depth value of the area pixel; selecting an area pixel with the minimum depth value from at least one area pixel corresponding to any pixel in the pixel plane as a visible pixel, and regarding a projected facet with a proportion of the visible pixel to the area pixel exceeding a preset visible threshold as a visible facet; and calculating a laser radar scattering cross section based on the visible facet. The visible pixel is identified by performing pixel-level depth testing on the facet to determine the visible facet, so that an accurate laser radar scattering cross section is obtained.

The application discloses a high-frequency selective dual-polarization conversion metasurface based on a stripline filter, comprising a plurality of dual-polarization conversion metasurface units; the dual-polarization conversion metasurface unit comprises a dielectric plate, a resonant unit and a metal via; the dielectric plates are provided with a metal ground layer therebetween, the resonant unit is embedded in the second layer of dielectric plate, the surface of the dielectric plate is provided with an upper metal patch, and the back of the dielectric plate is provided with a lower metal patch; the metal via is connected with the metal patch, the dielectric plate and the resonant unit in sequence; the type of the resonant unit adopts a second-order resonant unit or a third-order resonant unit; for the transmission type dual-polarization conversion metasurface, the filter structure can overcome the problem that the frequency selectivity of the dual-polarization conversion metasurface in the prior art is not high, can realize the dual-polarization conversion function of the incident wave, and has high frequency selectivity.

The application discloses a kind of one-dimensional force electric characteristics of concrete test piece and system, it is related to the cross field of detection and intelligent sensing technology of civil engineering material dynamic mechanical property.Testing method includes the following steps: S1: using one-dimensional Hopkinson pressure rod experimental device to the concrete test piece pre-embedded piezoelectric sensor is axially impacted loading, obtains incident wave signal, reflection wave signal and transmission wave signal;The current and voltage corresponding to the resistance obtained in parallel to the two ends of piezoelectric sensor;S2: obtaining the one-dimensional stress-strain curve of concrete test piece;S3: based on current and voltage, the charge amount generated by piezoelectric sensor is obtained;S4: the impact velocity of impact rod is changed and the stress-charge amount variation curve is obtained by repeating steps S1-S3.Getting the axial stress of concrete test piece and the charge amount output by piezoelectric sensor simultaneously, constructs stress-charge amount relationship curve, realizes the quantitative calibration of dynamic sensitivity.

The application relates to a power transmission line fault maintenance method and system under severe weather. The method comprises the following steps: performing baseline correction on a traveling wave current signal to identify a wave peak interval corresponding to the traveling wave, determining the symmetry deviation of the wave peak interval according to the difference between the trend item components of two sequences, screening a plurality of suspected fault traveling waves according to the fitting goodness of each wave peak interval, the shape similarity between the two sequences and the symmetry deviation, determining the spatial similarity according to the similarity between each suspected fault traveling wave and a plurality of suspected fault traveling waves at the opposite end, determining the incident waves at both ends of the power transmission line according to the energy intensity of the wave peak interval and the spatial similarity, correcting the initial speed of the incident wave according to the preset corresponding relationship and the main frequency of each incident wave, and positioning the fault point according to the corrected speed and the arrival time of the corresponding incident wave. The method improves the fault positioning accuracy and reliability, and reduces the operation and maintenance difficulty of the power transmission line.

The present invention relates to a substrate processing equipment, and more particularly, to a substrate processing equipment equipped with a current / voltage / power measurement module for measuring the current / voltage applied for generating and maintaining plasma during substrate processing using plasma, and further for measuring the power of incident and reflected waves. The present invention discloses a substrate processing equipment comprising a process chamber forming a sealed processing space in which plasma is formed to perform substrate processing; a substrate support unit disposed in the processing space on which a substrate is seated; and a gas injection unit for injecting a process gas into the processing space, wherein the substrate support unit includes a heater for heating the seated substrate, and a current / voltage / power measurement module for measuring an RF voltage, current, and power of an incident wave and a reflected wave generated by plasma in the processing space is installed adjacent to a heater power line for supplying power to the heater.

The invention discloses a hybrid intelligent reflector system based on FPGA centralized control. The system comprises a reflective array layer, a control layer, a communication feedback layer and an energy management module. The reflective array layer reflects the incident wave signal to a target direction through active amplification and phase adjustment; the control layer adopts an FPGA centralized control structure, establishes a channel model based on channel state information, executes a beam forming algorithm and phase matrix calculation, generates a target phase control matrix and a power distribution scheme, and adjusts a gain coefficient of the reflective array layer; the communication feedback layer extracts channel estimation parameters and carries out channel data reconstruction; and the energy management module transmits a real-time load signal of the reflective array layer to the control layer, receives a control level signal of the control layer, and cooperatively adjusts the power and phase of the reflective array layer. According to the invention, on the basis of a centralized control architecture and an energy adaptive management mechanism of the FPGA, signal amplification compensation, intelligent beam direction regulation and control and dynamic power distribution are realized.

The invention relates to a terahertz transmission wave modulator based on multilayer microstructure heterogeneous integration. The terahertz transmission wave modulator comprises a metal radiation layer, a substrate material, a metal ground layer, an insulating material, a direct current wiring layer, a resin material and a metal receiving layer which are sequentially arranged from top to bottom, the metal radiation layer comprises two diodes; when a terahertz incident wave of which the electric field direction is parallel to the transverse central axis of the metal receiving layer enters the metal receiving layer, a direct current bias voltage signal generated by the direct current wiring layer is transmitted to the two diodes of the metal radiation layer so as to control the conduction state switching of the two diodes; and the amplitude and phase of the terahertz transmission wave emitted by the metal radiation layer are subjected to 1-bit modulation. The terahertz modulator is diversified in regulation and control mode and excellent in performance, can play an important role in terahertz application fields such as tracking and pointing communication, radar perception and object imaging, and has a wide application prospect.