83 results about "SQUID" patented technology

A device for implementing a non-reciprocal bandpass filter is provided. The device includes a plurality of capacitively-coupled shunt resonators. Each capacitively-coupled shunt resonators includes a plurality of superconducting quantum interference devices (SQUIDs) connected to each other, a flux line inductively coupled to the plurality of SQUIDs, and a capacitor connected in parallel to the plurality of SQUIDs.

The invention discloses a special compound feed for mottled bamboo shark parents and a preparation method of the special compound feed. The special compound feed comprises imported fish meal, domestic chicken meal, squid paste and the like. The preparation method comprises the following steps: crushing and mixing the raw materials, adding water, carrying out steam tempering and curing, granulating, and naturally cooling to obtain the special compound feed for the matta striata shark parents. The prepared special compound feed for the mottled bamboo shark parents is excellent in food calling performance, the problem that artificially domesticated sharks are anorexia and refusal to eat artificial compound feed can be successfully solved, chilled baits are effectively replaced, the breeding cost is reduced, and the pathogen invasion risk caused by unstable quality of the chilled baits is fundamentally avoided. The special compound feed for the parents can also optimize the water environment and realize ecological and healthy breeding of the sharks, the high stability of the special compound feed remarkably reduces the organic matter load of the water caused by bait dissolution loss, the concentration of ammonia nitrogen and nitrite in the water is controlled from the source, the water change frequency and the use of drugs are reduced, and a stable and clean breeding environment is provided for the parents.

The technology described herein is directed towards a cryogenic magnet-less circulator device, in which the circulator device is based on the spatiotemporal modulation of angular momentum for microwave photons, controlled using a modulated control signal. The circulator device is configured for integration with a quantum computer, e.g., to facilitate qubit measurements. The circulator topology and design are based on tank circuits, e.g., arranged in a star topology with different sets of radio frequency superconducting quantum interference devices (rf-SQUIDS) per tank circuit, that resonate out-of-phase based on the modulated control signal. A single control line can be used to operate the circulator. The circulator can be fabricated using standard semiconductor processes, allowing one or more circulators to be integrated on the same superconducting chip as the qubits. A classical computer can be used to output the modulated control signal, and adapt the modulated control signal as needed under varying conditions.

The invention provides a high-temperature superconducting weak magnetic detection device and system, and the device comprises a Dewar which is internally provided with a refrigerant; the reading circuit module comprises a reading circuit board and a shielding shell; an annular cavity is formed in the shielding shell, and the reading circuit board is arranged in the shielding shell; the embedded structure is inserted into the Dewar, an installation position of an SQUID chip is arranged on the embedded structure, and a lead channel is arranged on the side wall of the embedded structure; and the heat insulation structure is fixed and filled in the upper end opening of the embedded structure. According to the high-temperature superconducting weak magnetic detection device and system, connectors and fasteners do not need to be disassembled and assembled frequently in the refrigerant filling process, and operation is convenient; electrostatic point discharge is not easy to generate, and the electrostatic damage rate of the high-temperature SQUID is reduced; the high-temperature SQUID does not need to be exposed in the air in the refrigerant filling process, performance degradation of the SQUID is avoided, and the service life and the performance stability of the SQUID are further ensured; the fault rate of the system is reduced in practical application, and the reliability and stability of the system are improved.

One example includes a superconducting analog-to-digital converter (ADC) system. The system includes a control line configured to propagate an interrogation pulse and a superconducting quantum interference device (SQUID) comprising a first Josephson junction and a second Josephson junction. The SQUID can be configured to receive an input current. The first Josephson junction can be configured to trigger to provide a first pulse in response to the interrogation pulse and a first polarity of the input current and the second Josephson junction can be configured to trigger to generate a second pulse in response to the interrogation pulse and a second polarity of the input current. The system further includes an output stage configured to propagate the first pulse to an output to indicate the first polarity of the input current.

This invention relates to the field of squid slice moisture control technology, and more particularly to a standard squid slice moisture control processing device, comprising a main plate, a first groove at the upper end of the main plate, a uniform kneading mechanism for uniformly kneading the squid slices at the upper end of the main plate, the uniform kneading mechanism comprising two seventh electric telescopic rods symmetrically arranged at the lower end of the main plate, the telescopic ends of the two seventh electric telescopic rods being respectively fixedly connected to limit blocks, the upper ends of the two limit blocks being respectively provided with second grooves, and a vacuum spraying mechanism for vacuuming and spraying conditioning agents inside the main plate at the upper end of the main plate; a first fixed body and the telescopic ends of the fifth electric telescopic rods are connected by a pressure sensor, the thickness of the squid slices can be detected by the telescopic amount of several fifth electric telescopic rods, and then the fifth electric telescopic rods are controlled by the pressure sensor to achieve kneading with corresponding force according to the thickness of the squid slices.

To provide a squid-like food that reproduces the texture of natural squids.SOLUTION: A squid-like food contains water of 40 wt.% or more relative to the total weight and comprises a protein sheet composed of textured soybean protein material, both ends of which are bonded together, forming a cylindrical body. The textured soybean protein material comprises protein fibers. The protein fibers are oriented in a fixed direction. The direction in which the protein fibers are oriented generally matches the circumferential direction of the cylindrical body.SELECTED DRAWING: Figure 1

The present disclosure relates to a second-order gradient independent input feedback superconducting quantum interference device and a preparation method thereof, comprising: eight superconducting pads, the eight superconducting pads comprising four input superconducting pads and four negative feedback superconducting pads, one input superconducting pad and one negative feedback superconducting pad forming one superconducting loop, the four superconducting loops being in parallel and arranged in a central symmetry; an input coil, the input coil being coupled with the four input superconducting pads; and a negative feedback coil, the negative feedback coil being coupled with the four negative feedback superconducting pads. The present disclosure can effectively reduce the crosstalk phenomenon between the input coil and the feedback coil, and improve the coupling coefficient and the transfer efficiency of the input coil and the feedback coil.

The application relates to the technical field of magnetic detection, in particular to a method and a test system for coupling a magnetic gradiometer and a SQUID to improve sensitivity, which comprises the following steps: deploying at least one set of magnetic gradiometer probe arrays in a superconducting shielding environment to obtain original magnetic gradiometer tensor data streams of a target area; feeding a multi-channel SQUID front-end input coil through a superconducting transmission line; completing magnetic flux locking and amplification to generate a preliminary signal by the SQUID; suppressing environmental and SQUID background noise by using an adaptive digital noise reduction processor to obtain a high-fidelity magnetic gradiometer signal; and generating a high-resolution magnetic gradiometer distribution map through gradient reconstruction and spatial resolution enhancement. The superconducting shielding environment combines array acquisition to suppress external interference and retain complete tensor characteristics, and the superconducting transmission line combines a multi-channel SQUID to reduce transmission noise and cumulative error, so that the signal is closer to the original state, and the SQUID locking sensitivity and amplification fidelity are improved. The application improves the sensitivity of magnetic gradiometer detection and the accuracy of target identification.

The invention relates to a frequency-adjustable superconducting quantum coupler capable of naturally resisting magnetic flux noise, which comprises a DC-SQUIDs (Direct Current-Superconducting Quantum IDs), namely a superconducting ring consisting of two Josephson junctions, a bias control line for adjusting the critical current of the SQUIDs, and a capacitor or inductance circuit component adapted to adjust coupling parameters, the DC-SQUIDs are of a planar inner loop structure, the loop comprises two Josephson junctions, two arms of the SQUIDs are mutually crossed to form 2N identical superconducting loops, namely sub-loops, and N is a positive integer; the bias control line changes the magnetic flux in the loop by applying a bias magnetic field, so that the critical current of the SQUIDs is changed, and then the frequency of the superconducting quantum coupler can be regulated and controlled. In the process of actively adjusting the frequency of the coupler, the induced current of the N sub-loops in the SQUIDs flows clockwise, and the induced current of the other N sub-loops flows anticlockwise, so that a loop is integrally formed.

The utility model belongs to the technical field of cuttlefish hatching devices, and particularly relates to a sepiella maindroni seaborne hatching device which comprises a net cage incubator, the net cage incubator is composed of a frame and a net bag, an inverted-L-shaped connecting base is fixedly installed at the top of the net cage incubator, and an electric push rod is fixedly installed on one face of the connecting base. A hollow fixed cylinder is fixedly mounted on one side of the mesh cage incubator, and liquid is stored in the fixed cylinder; when the sepiella maindroni fertilized eggs are hatched, the sepiella maindroni fertilized eggs are quickly sprayed to the mesh cage incubator through the through holes in the fixing frame, so that the fish schools are driven, the sepiella maindroni fertilized eggs are prevented from being ingested by the peripheral fish schools, normal hatching of the sepiella maindroni fertilized eggs is guaranteed, and hatching efficiency is improved.

The present application relates to the technical field of marine product processing equipment, and particularly discloses a squid yellow removing device, which comprises a yellow removing rack, a squid yellow clamping mechanism and a yellow removing mechanism arranged on the yellow removing rack, wherein the squid yellow clamping mechanism comprises a yellow removing moving frame, a yellow removing guide rod, a yellow removing guide seat, a yellow removing first clamping plate, a yellow removing second clamping plate, a yellow removing clamping plate moving cylinder and a yellow removing connecting rod, and the yellow removing mechanism comprises a yellow removing driving cylinder; the yellow removing moving frame is driven by the yellow removing driving cylinder; the front of the yellow removing moving frame is provided with the yellow removing first clamping plate; the yellow removing moving frame is provided with the yellow removing second clamping plate; the yellow removing second clamping plate is driven by the yellow removing clamping plate moving cylinder; the upper end of the yellow removing second clamping plate extends forward horizontally to form a clamping plate; the front end of the clamping plate cooperates with the upper end of the yellow removing first clamping plate to form a clamping end; a clamping space is formed between the yellow removing first clamping plate, the clamping plate and the yellow removing second clamping plate; and the yellow removing moving frame is provided with a yellow removing shaking mechanism.

A power amplifier based reciprocal quantum logic (RQL) bias level sensor is used to measure and / or calibrate bias parameters of an AC bias signal and / or a DC bias signal supplied to an RQL circuit. The bias signal may include an output amplifier output bias current. The bias level sensor includes a stack of DC SQUIDs, with inputs supplied from the outputs of respective Josephson transmission lines (JTLs) that transformer-couple the SQUIDs. By stepping the relative strengths of the bias taps of the JTLs or the critical currents of the Josephson junctions in the DC SQUIDs, the output voltage signal of the bias level sensor can indicate whether the supplied bias value is an improved or optimized bias value when varied over a range. The outputs of two such bias level sensors driven by I and Q clocks can be compared to adjust the AC bias amplitude of the clocks. The relative clock phases can be adjusted as well.

This application discloses an autonomously controlled low-temperature superconducting magnetic gradient readout system and parameter setting method, belonging to the field of geophysical exploration. Before magnetic gradient measurement, the method autonomously sets the SQUID to the optimal operating point based on an adaptive successive optimization algorithm. During measurement, a differential mutation detection algorithm is used to determine in real time whether the system has lost lock and autonomously resets it. If continuous loss of lock occurs, the method autonomously selects the parameter combination of the integrating capacitor and feedback resistor to reduce system sensitivity and relock the measurement. This application solves the problems of tediousness, time consumption, and insufficient accuracy in manually adjusting the optimal operating point of multi-channel readout systems. Simultaneously, by autonomously reducing system sensitivity, it solves the problem of continuous system loss of lock caused by bumps or large magnetic field change rates during dynamic measurements on mobile platforms such as vehicle-mounted, marine, and aerial vehicles. This enables autonomously controlled magnetic gradient measurement under unattended conditions, improving work efficiency and the reliability of magnetic gradient measurement.

This invention belongs to the field of seafood processing technology, specifically relating to a method for preparing a low-fat squid paste, comprising the following steps: (1) homogenizing and sterilizing squid viscera with physiological saline; (2) inoculating the treated squid viscera raw material with Bacillus subtilis inoculum for fermentation; (3) treating the fermented squid viscera raw material at 115-125℃ and 0.4-0.5MPa for 15-30 minutes; (4) allowing it to settle, removing the uppermost oil layer, and concentrating the remaining material under vacuum to obtain the squid paste product. Although the squid paste product prepared by this invention has a low fat content, it contains a high amount of DHA and EPA, thus retaining a high nutritional value.

The technology described herein is directed towards real-time monitoring of qubit states in quantum computers using a system based on rf-SQUIDs (radio-frequency superconducting quantum interference devices) and a direct current signal that is sourced to a superconducting quantum circuit wire, and measured by, a classical computing device. In one implementation, the rf-SQUIDs are positioned at strategic locations, between superconducting quantum circuit wires, in a quantum computer, such as before and after attenuators, and before parametric amplifiers. The direct current control signal facilitates the detection of magnetic flux and inductance without adding load or noise to the superconducting quantum circuit wires, which enhances the detection of qubit state changes. The monitoring and detection system dynamically and precisely monitors qubit state changes and provides real-time feedback to the quantum processing unit to adjust the qubit states, and thereby maintain the integrity of quantum computations.

We offer a new tai rubber head that closely resembles the true form of fish, octopus, and squid by fully attaching and integrating the bait. [Solution] The lead body 2 is shaped like a fish, squid, or octopus, and eyes 3, which mimic the eyes of the fish, are integrally formed on the front of the body. Fins 4, which correspond to the dorsal and pectoral fins, are integrally formed on the outer circumference of the body. A thread-through hole 5 for passing bait through the body is positioned above the center of gravity of the body and runs from the front to the back of the body.

The application relates to a chip signal coupling system for a metal magnetic calorimeter, belonging to the technical field of nuclear radiation detection, which comprises an MMC detector chip and a SQUID amplifier chip, and signal coupling is realized between the MMC detector chip and the SQUID amplifier chip through a superconducting transformer structure; the MMC detector chip comprises two series-connected pickup coils, each pickup coil is covered with a flat plate type paramagnetic temperature sensor, an absorber is arranged on each paramagnetic temperature sensor, and the MMC detector chip adopts a differential connection mode to read the magnetic communication signal generated by the paramagnetic temperature sensor; the SQUID amplifier chip comprises a primary SQUID amplifier, the primary SQUID amplifier comprises a SQUID signal input coil and a SQUID superconducting ring, and the pickup coil of the MMC detector chip is superconductively connected with the SQUID signal input coil. The coupling system provided by the application can realize the transmission of the output signal of the magnetic calorimeter between different chips, so that the processing is convenient, and the transmission process is accurate and reliable.

The technology described herein is directed towards a cryogenic magnet-less circulator device, in which the circulator device is based on the spatiotemporal modulation of angular momentum for microwave photons, controlled using a modulated control signal. The circulator device is configured for integration with a quantum computer, e.g., to facilitate qubit measurements. The circulator topology and design are based on tank circuits, e.g., arranged in a star topology with different sets of radio frequency superconducting quantum interference devices (rf-SQUIDS) per tank circuit, that resonate out-of-phase based on the modulated control signal. The circulator can be fabricated on a layered superconducting chip using standard semiconductor processes, allowing one or more circulators to be integrated on the same superconducting chip as the qubits. A classical computer can be used to output the modulated control signal, and adapt the modulated control signal as needed under varying conditions.

This invention relates to the field of food processing equipment technology, specifically to a drying device and research method for reducing the water activity of squid. The device includes a housing, a first heating unit, a supporting unit, a cross-blade unit, a second heating unit, a transition chamber, an air inlet pipe and an air outlet pipe, a lifting mechanism, and a controller. The method includes the steps of cutting open the squid's skin with the cross-blade unit and bringing the blade into contact with the subcutaneous muscle, and controlling the outward drainage of water from the subcutaneous muscle through a siphon effect. This invention overcomes the technical problem that the water activity of the subcutaneous tissue cannot be optimally achieved due to the shrinkage of the squid's skin during the drying process. It allows for the selection of the optimal squid drying process through parameter screening, maximizing the reduction of the squid carcass's water activity while ensuring good taste, thereby improving processing efficiency, extending shelf life, and enhancing product quality.

The utility model relates to the technical field of squid processing, and discloses a squid quick-freezing device which comprises a supporting frame, a conveying belt is arranged in the supporting frame, a box body is fixedly connected to the top of the supporting frame, a liquid nitrogen box is fixedly connected to the top of the box body, a pump body is arranged on the left side of the liquid nitrogen box, and a flow dividing pipe is fixedly connected to the upper portion in the box body. The bottom of the flow dividing pipe is fixedly connected with evenly-distributed nozzles, the left side and the right side of the pump body are fixedly connected with conveying pipes, clamping grooves are formed in the front portion and the rear portion of the inner wall of the right side of the supporting frame, guide plates are slidably connected into the clamping grooves, and inserting holes are formed in the two sides of each guide plate. According to the device, impurities outside the conveying belt can be cleaned and moisture can be absorbed through the brush plate and the water absorption roller, the two groove plates can be detached by pulling the pull rod with hands to drive the limiting clamping block to move and release limitation on the limiting insertion block, and the water absorption roller and the brush plate can be replaced and cleaned conveniently.

A tunable coupler circuit is provided that includes a coupling superconductor quantum interference device (SQUID) having a first end configured to be coupled to a first resonator device and a second end configured to be coupled to a second resonator device. A first shunt SQUID coupled between the first coupling node and ground, and a second shunt SQUID coupled between the second coupling node and ground, wherein the tunable coupler circuit is configured to switch between a coupled state by the setting of the coupling SQUID to a low impedance state while concurrently setting the first shunt SQUID and the second shunt SQUID to a high impedance state and a decoupled state by setting the coupling SQUID to a high impedance state to decouple the first resonator device and the second resonator device while concurrently setting the first shunt SQUID and the second shunt SQUID to a low impedance state.

This invention relates to a method for predicting the abundance of squid resources in the Northwest Pacific based on a time series model, belonging to the field of marine fisheries analysis and processing technology. The method includes the following steps: dividing historical catch data of Northwest Pacific squid into training and test sets; using catch per unit catch effort to characterize resource abundance; calculating the average catch per unit catch effort for each fishing location and the monthly average catch per unit catch effort; performing a unit root test on the training set data to meet stationarity requirements; establishing a seasonal single autoregressive moving average model using the training set data; establishing a seasonal multivariate autoregressive moving average model by combining data from squid spawning grounds and feeding grounds; using the test set to perform white noise testing on the residuals, goodness of fit, and prediction accuracy evaluation to obtain the optimal model; and using the optimal model to predict the abundance of Northwest Pacific squid resources. This invention establishes a more accurate resource abundance prediction model, enabling more precise prediction of Northwest Pacific squid resource abundance.

The invention discloses an autonomous control type low-temperature superconducting magnetic gradient read-out system and a parameter setting method, and belongs to the field of geophysical exploration. According to the method, before magnetic gradient measurement, based on an adaptive successive optimization algorithm, an SQUID is autonomously set to be at an optimal working point; in the measuring process, whether the system loses lock or not is judged in real time based on a differential mutation detection algorithm, automatic resetting is conducted, if continuous lock losing occurs, parameter combination of an integrating capacitor and a feedback resistor is automatically selected, the sensitivity of the system is reduced, and relocking measurement is achieved. The problems that manual adjustment of the optimal working point of a multi-channel reading system is tedious, time-consuming and insufficient in precision are solved, meanwhile, the system sensitivity is autonomously reduced, the problem of continuous lock losing of the system caused by bumping or large magnetic field change rate during dynamic measurement of vehicle-mounted, ocean, aviation and other mobile platforms is solved, and the dynamic measurement accuracy of the multi-channel reading system is improved. The magnetic gradient measurement of autonomous regulation and control under the unattended condition is realized, and the working efficiency and the reliability of the magnetic gradient measurement are improved.

The present application provides a device, system and method for detecting weak electromagnetic signals of a sample, comprising a driving module, N Helmholtz coils, a low-temperature container, two SQUID modules, a first signal processing module and a second signal processing module; N is a natural number greater than 1; the driving module provides driving signals for each Helmholtz coil, each SQUID module includes a SQUID galvanometer and a gradiometer; the input end of each SQUID galvanometer is connected to each gradiometer; the input end of the first signal processing module is connected to the output end of each SQUID galvanometer, and outputs a first processing signal to the second signal processing module; the second signal processing module determines whether the processing signal produces random resonance. The present application can realize synchronous detection, that is, the sample of the substance to be tested dissolved in the solvent and the sample containing pure solvent are tested synchronously at the same time, further avoiding the error caused by the time difference caused by separate testing.

The application provides a high-temperature superconducting weak magnetic detection device and system, comprising: a Dewar, which is internally provided with a refrigerant; a readout circuit module, which comprises a readout circuit board and a shielding shell; a ring-shaped cavity is formed in the shielding shell, and the readout circuit board is arranged in the shielding shell; an embedded structure is inserted into the interior of the Dewar, the embedded structure is provided with a mounting position of a SQUID chip, and a lead channel is arranged on the side wall of the embedded structure; and a heat insulation structure is fixed and filled in the upper end opening of the embedded structure. The high-temperature superconducting weak magnetic detection device and system do not need to frequently disassemble and assemble connectors and fasteners in the process of filling the refrigerant, are convenient to operate, are not prone to static tip discharge, reduce the static damage rate of the high-temperature SQUID, do not need to expose the high-temperature SQUID to air in the process of filling the refrigerant, avoid the performance degradation of the SQUID, further ensure the service life and performance stability of the SQUID, and are favorable for reducing the system failure rate, improving the system reliability and stability in actual application.

The invention discloses an SQUID-based inner centering superconductive gravity measurement device and method, and belongs to the technical field of gravity measurement, the device comprises an SQUID, an input coil, a detection cavity, a superconductive suspension body, a torquer cavity, a suspension coil and a coil support base which are arranged from top to bottom; the input coil and the detection coil are in superconducting connection to form a detection loop; the detection coil induces the vertical displacement of the superconducting suspension body and converts the vertical displacement into a current signal, and the current signal is coupled to the input coil in magnetic flux coupling with the SQUID through the detection loop; the SQUID converts the magnetic flux change into a voltage signal and outputs the voltage signal, so that high-precision detection of displacement is realized; a detection coil is arranged in the detection cavity, and a torquer is arranged in the torquer cavity; different currents are introduced into the first torque superconducting loop and the second torque superconducting loop of the torquer, so that the inclination state of the superconducting suspension body is adjusted. According to the invention, the problem of poor stability of high-precision dynamic gravity measurement is effectively solved.

The embodiment of the application discloses a data compensation method, device, equipment and storage medium, and the method comprises the steps of establishing a target interference compensation model of a towed superconducting full-tensor magnetic gradient measurement system for a pod platform, wherein the target interference compensation model comprises a SQUID magnetic gradiometer measurement item, an interference compensation item and a sensor self-interference correction item; wherein the interference compensation item excludes residual magnetic interference items of the pod platform, and the interference compensation item comprises a magnetosensitive interference item represented by a first-order derivative of an earth magnetic field component and an eddy current interference item represented by a second-order derivative of the earth magnetic field component; the sensor self-interference correction item is used for representing the imbalance degree and unknown offset of the SQUID magnetic gradiometer; a target function is constructed based on the target interference compensation model; the SQUID magnetic gradiometer measurement value and the SQUID magnetometer measurement value are input into the target function, and a compensation coefficient is obtained by using a symmetric overrelaxation iteration method; and the towed superconducting full-tensor magnetic gradient measurement system is compensated based on the compensation coefficient.

The invention relates to a two-stage SQUID on-chip filter and a preparation method thereof. The two-stage SQUID on-chip filter comprises a first superconducting thin film layer, an insulating layer, a second superconducting thin film layer and a resistance layer which are sequentially stacked in the direction perpendicular to a substrate. Wherein the first superconducting thin film layer, the insulating layer, the second superconducting thin film layer and the resistive layer are used for forming a capacitor, a plurality of resistors and a plurality of inductors, and the capacitor, the plurality of resistors and the plurality of inductors form an on-chip filter; wherein the on-chip filter is provided with a first control interface, a second control interface, a third control interface, a fourth control interface, a first connecting interface, a second connecting interface and a third connecting interface, the first connecting interface is connected with the input stage SQUID, the second connecting interface is connected with the amplification stage SQUID, and the third connecting interface is connected with the SQUID input coil. And at least high-frequency noise can be suppressed, so that the intrinsic noise of the secondary SQUID device is reduced.