17 results about "Weak field" patented technology

The invention discloses a wide-dynamic-range diamond NV color center magnetic sensing method and system, and the method comprises the steps: (1) calibrating the initial resonant frequency and magnetic sensing coefficient of a diamond NV color center in an initial magnetic field environment; (2) in a to-be-measured magnetic field environment, a microwave generator applies frequency-modulated microwaves to the diamond NV color center with the current resonant frequency as the center frequency; demodulating the fluorescence signal in real time by using a phase-locked detection technology to obtain an error signal; calculating the detuning amount of the center frequency in real time according to the error signal and the magnetic sensing coefficient, and further calculating the variable quantity of the magnetic field intensity; meanwhile, the detuning amount is fed back to a microwave generator to track the resonance frequency of the diamond NV color center; and (3) continuously and repeatedly executing the step (2) to realize wide-dynamic-range magnetic field measurement. The method has the advantages of wide dynamic range, high detection capability on strong and weak field mixed signals in a complex application scene and the like while giving consideration to the magnetic sensing sensitivity.

The invention discloses a dielectric mutual-decoupling antenna based on a strip dielectric resonator, and belongs to the technical field of microwave communication. The invention provides a low-profile decoupling antenna scheme without additional components to solve the problems that mutual coupling of an existing closely-arranged dielectric antenna array is deteriorated, and an additional structure needs to be additionally arranged in a traditional decoupling mode, so that an antenna is complex or the profile is increased. The antenna is of a laminated structure and comprises a top-layer double-radiation dielectric patch, a middle strip-shaped dielectric resonator, a slotted metal ground and a centrosymmetric L-shaped microstrip feeder. During working, the top layer excites a half-wavelength electric field, the middle resonator excites a full-wavelength electric field, a weak field region is formed by equal-amplitude and reverse-phase offset, and the feed slot is arranged in the weak field region to realize port decoupling.

The application discloses a kind of wide dynamic range diamond NV color center magnetic sensing method and system, wherein, method includes: (1) in initial magnetic field environment, the initial resonance frequency and magnetic sensing coefficient of diamond NV color center are calibrated;(2) in the magnetic field environment to be measured, microwave generator is with current resonance frequency as center frequency to diamond NV color center and is applied frequency-modulated microwave;Real-time demodulation is carried out to fluorescence signal using phase-locked detection technology, and an error signal is obtained;According to error signal and magnetic sensing coefficient, the detuning of center frequency is calculated in real time, and the change amount of magnetic field intensity is further calculated;While, detuning is fed back to microwave generator to track the resonance frequency of diamond NV color center;(3) by continuously repeating step (2), the magnetic field measurement of wide dynamic range is realized.The application has the advantages of wide dynamic range, strong and weak field mixed signal detection ability in complex application scene while considering magnetic sensing sensitivity.

According to the dual-band port and directional diagram self-mutual-decoupling patch antenna, a top metal layer is of a left-right symmetrical structure and comprises two rectangular metal patches which are arranged side by side in the left-right direction and serve as a radiation unit; each metal patch is provided with a flat-bottom inverted-U-shaped groove. The adjacent edges of the two metal patches are respectively provided with four grounding columns at intervals. The inner conductors of the two coaxial feed probes pass through the bottom metal layer and the dielectric substrate and then are respectively connected with the two rectangular metal patches. Wherein the flat-bottom inverted U-shaped groove is used for regulating and controlling a current path and a resonant mode to realize dual-frequency radiation; every two eudipleural grounding columns on the two metal patches form a pair, the four pairs of grounding columns are used for restraining high and low frequency coupling, a coupling path is blocked by forming a weak field area, and double-frequency decoupling is achieved. According to the invention, based on the structure of the grounding pole, decoupling is realized under the condition that the profile is reduced and the size of an additional patch is not increased, and a directional diagram is corrected.

The invention discloses a patch mutual-coupling-removing antenna based on a full-wave-band resonator. The patch mutual-coupling-removing antenna comprises two upper-layer metal patches, a middle-layer metal patch, two layers of dielectric substrates, a bottom-layer metal grounding surface and two metal probes. The two upper-layer metal patches are of rectangular structures with the same size and are arranged on the upper surface of the upper-layer dielectric substrate side by side left and right; the middle-layer metal patch is positioned between the two layers of dielectric substrates; the bottom-layer metal ground plane is located on the lower surface of the lower-layer dielectric substrate, and the two metal probes are connected with the middle-layer metal patch; wherein the middle-layer metal patch forms a strip-shaped resonator. A constant-amplitude and anti-phase electric field exists between the upper-layer metal patch and the middle-layer band-shaped resonator, and the position of a feed port is regulated and controlled to enable the feed port to fall at a weak field region, so that port decoupling can be realized. And meanwhile, the band-shaped resonator only prolongs the propagation path in the vertical direction, so that the beam width of the antenna can be expanded without adding an additional parasitic unit, and the directional diagram of the antenna is not influenced.

A system and method for implementing artificial intelligence using deterministic wave interference and collapse logic derived from the Total Wave Modified Schrödinger Equation (TWMSE). An artificial agent is modeled as a system wavefunction interacting with one or more observer wavefunctions representing electromagnetic, gravitational, weak, or strong fields. A collapse function determines when interference exceeds a threshold, producing deterministic action or comprehension. Field parameters adapt through feedback to enable learning, residual interference forms resonant memory, and computation is performed directly on optical, electromagnetic, or neuromorphic hardware. The invention provides a unified framework—Total Wave Artificial Intelligence (TWAI)—that integrates action, understanding, learning, memory, and physical embodiment through field-based collapse rather than probabilistic inference.

This invention provides a calibration-free path reconstruction method for buried cables based on Topo-NeRF and active sensing. Addressing the issues of traditional magnetic field inversion relying on calibration and being prone to mismatch in environments with strong interference such as reinforced concrete, the method preprocesses raw data to obtain a spatiotemporal feature matrix. This matrix undergoes feature extraction, spatial alignment, and drift compensation to eliminate extrinsic parameter calibration, resulting in multi-source fused data. This multi-source fused data is combined to characterize the cable's magnetic field using a continuous three-dimensional topological manifold. An implicit neural radiation field is constructed and coupled with differentiable electromagnetic rendering. The cable body and branch nodes are separated within a persistently cohomologically constrained topological bottleneck layer. The initial reconstruction results are combined with conditional diffusion and ground-penetrating radar dielectric priors to enhance low signal-to-noise ratio weak fields, ensuring consistency between the reconstruction results and the underground physical structure. Based on reconstruction uncertainties, topological entropy is calculated, and online acquisition trajectories are planned to form a closed-loop active sensing system. Finally, a three-dimensional path model is output, enabling rapid detection of underground cables.

The application discloses a differential decoupling antenna of a comprehensive step and uniform impedance resonator, which is characterized in that step resonators and uniform impedance resonators are arranged on the upper and lower sides of two patch units respectively and parallel to the patch units, and the step resonators and the uniform impedance resonators are arranged in the same direction as the differential ports, so that a weak field is generated near the feeding ports of the coupled patch units, and the decoupling of the differential antenna is realized. The width of the left and right widened parts of the step impedance resonator is twice that of the middle part, the left end of the step impedance resonator is located between the differential ports one, and the right end is located between the differential ports two. The left end of the uniform impedance resonator is located between the left edge of the left patch unit and the left feeding port, and the right end is located between the right edge of the right patch unit and the right feeding port. In this arrangement, the radiation pattern can be corrected, the radiation efficiency can be improved, and the 3dB beam width can be widened.

The application discloses a minimum energy step-based electrostatic field micro-step jump detection method, which comprises the following steps: preparing an experimental device, wherein the experimental device comprises a scanning tunneling microscope, a piezoelectric ceramic displacement table and a Kelvin probe force microscope; the probe needle tip curvature radius of the scanning tunneling microscope is less than 2 nm; the extreme short-range ranging of the scanning tunneling microscope probe is 0.5 nm-5 nm; and the displacement precision of the piezoelectric ceramic displacement table is 0.0001 nm; preparing a single-charge quantum dot as a point charge to simulate a proton electric field; and fixing the single-charge quantum dot on a substrate. The purpose of the application is to provide the minimum energy step-based electrostatic field micro-step jump detection method, which can measure the field strength change of an electrostatic field under an extremely short range and extremely weak field strength, can observe whether the electric field can only jump and cannot slide, can verify that the point charge electric field is a minimum energy integer step, the field strength cannot continuously change, can further determine the hydrogen atom energy level and the existence of the step of the proton electric field.

The application discloses a differential decoupling antenna based on misaligned double strips, in the top metal layer, two rectangular metal patches are arranged side by side, two metal strips are arranged horizontally above and below the rectangular metal patches respectively, and are misaligned in parallel to form a decoupling structure. The inner cores of four coaxial feeding probes are respectively inserted vertically upward from below the bottom metal layer and are connected with one rectangular metal patch in pairs correspondingly, and the two feeding probes connected with the same rectangular metal patch form a pair of differential ports. The application misaligns the strips parallel to the two patch units above and below the two patch units, and the arrangement direction of the strips is consistent with the arrangement direction of the differential ports, so that a weak field is generated on the coupled patch, and the decoupling of the differential antenna is realized. The misaligned arrangement obtains relatively high isolation in a relatively compact case. Meanwhile, the size of the antenna is relatively small, and the horizontal ECC is also reduced.

A strong / weak-field-based foreign object detection method for a metal detector, the method comprising the following steps: acquiring a weak-field detection signal and a strong-field detection signal of a product to be subjected to detection (S1); on the basis of the weak-field detection signal, the strong-field detection signal, and a qualified product coefficient and a metallic foreign object coefficient that are measured in advance, calculating a metallic foreign object signal value, wherein the qualified product coefficient is different from the metallic foreign object coefficient (S2); and determining whether the metallic foreign object signal value is greater than a preset threshold value, and if the metallic foreign object signal value is greater than the preset threshold value, determining that a metallic foreign object is detected, otherwise, determining that no metallic foreign object is detected (S3). Therefore, when a small metallic foreign object cannot be detected by means of a threshold-value-based determination method, the detection precision of a metal detector is improved. The present application further relates to a strong / weak-field-based foreign object detection apparatus for a metal detector, and a storage medium.

Embodiments of the present specification provide a method and device for generating a check script for a target application, wherein the method for generating the check script comprises: obtaining TM metadata configured by a user. Identifying strong fields and weak fields from a target data table. Calling a parsing engine to parse field values of the weak fields to obtain extended fields corresponding to sub-fields in the weak fields, the field name of the extended field being used to identify the complete hierarchical path of the corresponding sub-field. Determining the strong fields and the extended fields as each target field in the target data table. Extracting code symbols and their annotation information from the business code of the target application. Inputting the code symbols and their annotation information into an intelligent agent, and letting the intelligent agent perform semantic parsing on the code symbols based on the annotation information to obtain corresponding business meanings. Matching the business meanings with each target field to establish an association relationship between the code symbols and each target field. Generating a check script by using a code generation platform based on the association relationship.

This invention discloses a non-invasive voltage measurement method based on near-end integration inversion, comprising: selecting a reference point around the device under test (DUT); using the vertical line between the DUT and the reference point as the integration interval [0, H] of the measured electric field; normalizing the upper limit H and lower limit 0 of the integration interval [0, H] to obtain normalized integration node positions; based on the normalized integration node positions, dividing the integration interval [0, H] into a weak field region [0, kH] and a strong field region [kH, H]; selecting the strong field region and discarding the weak field region, and using the strong field region as the effective integration interval; arranging an electric field sensor array on the effective integration interval; acquiring the electric field intensity of the sensor array on the effective integration interval; and determining the voltage of the DUT using the electric field integration method. This invention improves the validity of the data during the measurement process, significantly reduces the influence of other adverse factors, and thus enables accurate measurement of the voltage value of the DUT.

The invention relates to a metasurface dual-parameter sensor design for exciting a high-Q-value quasi-BIC through a weak field disturbance mode, and belongs to the technical field of metasurface sensors. According to a traditional mode that quasi-BIC is triggered by changing metasurface structure parameters, when asymmetric parameters are increased, the Q value is suddenly reduced, in order to maintain the high Q value, the asymmetric parameters need to be maintained at a low value, and therefore the requirement for manufacturing precision is improved. According to the invention, the defect hole is introduced into the specific area with relatively weak eigenfield intensity in the metasurface lattice, so that energy leakage of a radiation channel is less while the quasi-BIC is triggered, and a relatively high Q value can be maintained under the condition of relatively low requirement on manufacturing precision. And the quasi-BIC formant triggered in the mode is used for sensing relative humidity and temperature for the first time.

This invention discloses a first wall structure for a tokamak vacuum chamber, used in the weak-field side region. The first wall structure includes a first wall module body and a transition support. The first wall module body includes a detachable graphite layer, a graphite foil, and a back plate fixed together, with the graphite foil fixed between the graphite layer and the back plate. The back plate is fixedly connected to the transition support, which is installed on the inner wall of the vacuum chamber. Internal components within the vacuum chamber are installed in the space between the transition support and the inner wall. This invention integrates the modular graphite design with the back plate as a whole on the transition support, eliminating the need for installation within the confined vacuum chamber space, reducing installation difficulty, and simplifying the positioning of the graphite. This facilitates the installation, disassembly, and subsequent maintenance of the first wall module body. Other internal components are not installed within the graphite, reducing manufacturing costs. The internal components are highly adjustable, meeting the flexible adjustment needs of many internal diagnostic systems.

The invention discloses a temperature scanning absolute calibration method based on a strong field side electron cyclotron radiometric calibration rate, and relates to the technical field of absolute temperature calibration, and the method comprises the steps: carrying out the relative calibration of an electron cyclotron radiometer at a weak field side through a magnetic field difference calibration method, and obtaining a relative electron temperature distribution structure at the weak field side; on the basis of the obtained signals and the assumed core electron temperature, calculating to obtain relativistic offsets of all diagnosis channels of the electron cyclotron radiometer on the strong field side; a relative electron temperature distribution structure measured by the electron cyclotron radiometer on the strong field side is obtained through relativistic offset on the electron cyclotron radiometer on the strong field side; increasing the electron temperature of the discharge plasma in the magnetic field based on the assumed electron temperature of the core until the electron temperature distribution structures measured on the scanned strong field side and weak field side are consistent, and determining the assumed electron temperature of the core as an absolute temperature; and more accurate and reliable electronic temperature data support is provided for operation and research of the Tokamak device.