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43results about How to "Adapt to testing requirements" patented technology

Electric vehicle wireless charging system with metal foreign substance detection

The invention discloses an electric vehicle wireless charging system with metal foreign substance detection. The system comprises a wireless electric energy emitting device, a wireless electric energy receiving device, and a metal detection device, wherein the input end of the wireless electric energy emitting device is connected with a power supply component, the output end of the wireless electric energy emitting device is connected with a wireless electric energy emitting coil, and the wireless electric energy emitting coil is capable of producing a high frequency resonant magnetic field with fixed frequency; the input end of the wireless electric energy receiving device is connected with a wireless electric energy receiving coil, and the wireless electric energy receiving coil is coupled with the wireless electric energy emitting coil; when the resonant frequency of the wireless electric energy receiving coil is the same as the fixed frequency produced by the wireless electric energy emitting coil, the wireless electric energy receiving coil end produces induced electromotive force and is used for charging an accumulator of the electric vehicle connected with the output end of the wireless electric energy receiving device; the metal detection device comprises a balance structure metal detection coil laid on the surface of the wireless electric energy emitting coil; the metal detection coil and a metal detection circuit form a loop to detect whether a metal foreign substance is existent in the magnetic field.
Owner:SHANDONG UNIV

Wireless charging, alignment and metal foreign body detection system of electric automobile and method thereof

The invention discloses a wireless charging, alignment and metal foreign body detection system of an electric automobile and a method thereof. The detection system comprises a transmitting coil, a receiving coil, a probe, a signal conditioning module and a control module connected with the signal conditioning module, wherein the transmitting coil is connected with the output end of a wireless charging and transmitting device on the ground surface of a parking lot, the receiving coil is connected with the input end of a wireless electric energy receiving device of an electric automobile chassis and is mutually coupled with the transmitting coil, and the probe is laid on the surface of the transmitting coil and is mutually coupled with the transmitting coil and the receiving coil. The probe is of an axis-symmetric structure and is composed of two coils equal in size and turn number and opposite in winding direction. The probe is consistent with the boundary of the transmitting coil in size. The signal conditioning module is used for receiving voltage signals output by two output ends of the probe and conducting amplification, filtration and peak-holding processing on the two signals output by the two output ends. The control module is used for obtaining the difference of the two received voltage signals and comparing the obtained voltage signal difference value with a preset voltage threshold value.
Owner:深圳赫兹创新技术有限公司

Scale type micro-fluidic chip for quantitative immediate diagnosis and preparation method of scale type micro-fluidic chip

ActiveCN103934049AEasy Quantitative ReadoutRealize multi-target detectionLaboratory glasswaresMaterial analysisFood safetyEngineering
The invention provides a scale type micro-fluidic chip for quantitative immediate diagnosis and a preparation method of the scale type micro-fluidic chip. The scale type micro-fluidic chip comprises micro-reaction chambers and micro-channels, wherein the micro-reaction chambers have sample feeding holes and sample discharging holes, openings at one ends of the micro-channels are communicated to external environments, and indicating liquid is locally encapsulated in the micro-channels; scale marks and corresponding numerical values are arranged outside the micro-channels to facilitate the quantitative reading of a detection result, the other ends of the micro-channels are communicated with the micro-reaction chambers through buffer tanks to form complete independent working units, and meanwhile, multiple working units can be arrayed on a chip to realize multichannel detection. The scale type micro-fluidic chip has the advantages of no complex instruments, convenience in carrying, low cost, simplicity and convenience in operation, easiness in reading, multi-target detection, little use amount of sample, sensitivity and the like and can be widely applied to biochemical analysis fields including medical diagnosis, food security, environmental pollution and the like.
Owner:SUZHOU DIYINAN BIOTECHNOLOGY CO LTD

Fiber grating-based spectrum detecting device

The invention discloses a fiber grating-based spectrum detecting device. The spectrum detecting device comprises a grating group, a light source to be tested, a fiber circulator, a 1 x N optical switch, a photodetector, and a data acquisition module. An output light signal of the light source to be tested enters terminal 1 of the fiber circulator. Terminal 2 of the fiber circulator is connected toan input end of the optical switch. N output ends of the optical switch are connected to one ends of the N gratings. Signals reflected by the gratings enter terminal 3 of the fiber circulator throughthe optical switch. The terminal 3 of the fiber circulator is connected to an input end of the photodetector. An output end of the photodetector is connected with an input end of the data acquisitionmodule. An control end of the data acquisition module is connected to an switching control end of the optical switch. Switching the optical switch to process the signals collected on each grating anddisplay a signal of a spectrum of the light source to be tested. The fiber grating-based spectrum detecting device can meet different requirements and has the advantages that measurement errors caused by conveyance or vibration are avoided, the resolution of a spectrograph is improved by cooperation of coarse adjustment and fine adjustment.
Owner:MINNAN NORMAL UNIV

Mixed P2P flow monitoring system based on BP neural network

The invention discloses a mixed P2P flow monitoring system based on a BP neural network. The mixed P2P flow monitoring system comprises a BP network model training module, a classifying module, a matching module, an analyzing module and an updating module. The updating module is used for adjusting a BP trainer irregularly to achieve the design requirement, and for receiving unknown P2P flow data found through the analyzing module based on the method of combining the flow statistic characteristics and the deep layer data package detecting technology to improve the effect of the trainer to enable the classifying module produced by the trainer to be more suitable for a classifier. A management module serves as a main center of a whole management platform, and is used for coordinating the relationship among the matching module, the analyzing module and the updating module and organizing the normal operation of the modules to generate a flow log. By means of the mixed P2P flow monitoring system based on the BP neural network, the precision can be effectively improved, the rate of rejecting the fault and the rate of rejecting the truth are reduced, and the mixed P2P flow monitoring system is suitable for monitoring flow under the situation that the current P2P technology develops rapidly.
Owner:INST OF DONGGUAN SUN YAT SEN UNIV +1

Brillouin distributed optical fiber sensing based structural joint monitoring device

A Brillouin distributed optical fiber sensing based structural joint monitoring device is characterized by comprising steel plate bases (9), a linear steel sheet (5) and an L-shaped steel sheet (8) are mounted on each steel plate base (9), a pulley (6) is mounted at each of a suspension arm end of each linear steel sheet (5) and a corner end of each L-shaped steel sheet (8), an optical fiber (1) for stretching detection is wound on the two corresponding pulleys (6) at the suspension arm ends of the linear steel sheets (5) on two sides of a structural joint, an optical fiber (2) for contracting detection is wound on the two corresponding pulleys (6) at the corner ends of the L-shaped steel sheets (8) on two sides of the structural joint, an optical fiber (3) for temperature compensation detection is connected between the optical fiber (1) for stretching detection and the optical fiber (2) for contracting detection, and each of the optical fiber (1) for stretching detection and the optical fiber (2) for contracting detection is connected with a Brillouin distributed optical fiber demodulating system through a respective connecting optical fiber (4). The Brillouin distributed optical fiber sensing based structural joint monitoring device is capable of monitoring the stretching quantity and the closing quantity of the structural joint, achieves temperature self compensation and effectively overcomes the shortcomings when the optical fibers are simply laid.
Owner:无锡苏积传感科技有限公司

Low-cost bicycle rider collision test device and test method for AEB system

The invention discloses a low-cost bicycle rider collision test device for an AEB system. The low-cost bicycle rider collision test device for the AEB system comprises a bicycle rider model, a speed control module, a wireless stopwatch module, trigger signal sensors, a wireless transmitting module and a wireless receiving module; the bicycle rider model comprises a dummy model, a modified bicycleand an electric slide plate; the speed control module is used for controlling the speed of the electric slide plate; the wireless stopwatch module is used for recording the speed of the modified bicycle in real time; the trigger signal sensors are arranged at preset triggering positions on the two sides of a running route of a test vehicle; the wireless transmitting module is used for receiving induction signals of the trigger signal sensors and sending a starting signal to the wireless receiving module; and the wireless receiving module is used for receiving the starting signal and controlling the starting of the electric slide plate. The invention further discloses a bicycle rider collision test method for the AEB system. The bicycle rider collision test device for the AEB system is lowin cost, easy to assemble, firm in structure and easy to be popularized; and the bicycle rider collision test method for the AEB system is simple and convenient, multiple tests can be carried out, andtesting results are reliable.
Owner:CHANGAN UNIV

Steel pipe longitudinal defect magnetic leakage detection device based on rotary magnetizing field

The invention discloses a steel pipe longitudinal defect magnetic leakage detection device based on a rotary magnetizing field. The device comprises a rotary magnetizer, an excitation power supply, an area array sensor array, an area array sensor array support, a filter, an amplifier and an A/D (analog-to-digital) converter. The excitation power supply provides three-phase asynchronous alternating current for the rotary magnetizer, and the rotary magnetizing field is generated inside the rotary magnetizer. The annular area array sensor array is fixed into the rotary magnetizer through the support and fully circumferentially covers a steel pipe. When the steel pipe passes the detection device, the rotary magnetizing field fully, circumferentially and uniformly magnetizes the steel pipe. If the steel pipe has a longitudinal defect, a defect magnetic flux leakage field is generated, picked by a sensor at a position corresponding to the defect and converted into an electric signal, the electric signal is transmitted to a computer sequentially through the filter, the amplifier and the A/D converter, and the longitudinal defect is detected. The steel pipe is fully, circumferentially and uniformly magnetized by the device, longitudinal defect detection efficiency is improved, and cost is reduced.
Owner:SICHUAN UNIV

Scanning device for pulsed eddy current testing of non-ferromagnetic pipeline

The invention belongs to the technical field of pipeline nondestructive testing equipment, and specifically discloses a scanning device for pulsed eddy current testing of a non-ferromagnetic pipeline.The scanning device comprises a bottom plate, and is characterized by comprising a pulsed eddy current testing probe mechanism, several clamping mechanisms and a driving unit for driving the scanningdevice to move on a pipeline; the pulsed eddy current testing probe mechanism is arranged below the bottom plate and comprises a probe, screws and springs; several clamping mechanisms are symmetrically arranged on both sides of the bottom plate; one end of a claw is connected to the torsion spring through a claw rotary shaft and a protrusion portion of the torsion spring is pressed on the claw for pressing the claw to provide a clamping force of the claw to the pipeline; and a pulley is further arranged at the other end of the claw. According to the scanning device for pulsed eddy current testing of the non-ferromagnetic pipeline, the device can realize the testing of the wall thickness reduction type defects of non-ferromagnetic large-diameter metal pipelines, and can adapt to the pipelines of various specifications; and the multi-path testing of the pipelines is realized by combining the two scanning paths above the pipeline and below the pipeline.
Owner:HUAZHONG UNIV OF SCI & TECH

A scaled quantitative real-time diagnosis microfluidic chip and its preparation method

ActiveCN103934049BEasy Quantitative ReadoutRealize multi-target detectionLaboratory glasswaresMaterial analysisEngineeringWork unit
The invention provides a scale type micro-fluidic chip for quantitative immediate diagnosis and a preparation method of the scale type micro-fluidic chip. The scale type micro-fluidic chip comprises micro-reaction chambers and micro-channels, wherein the micro-reaction chambers have sample feeding holes and sample discharging holes, openings at one ends of the micro-channels are communicated to external environments, and indicating liquid is locally encapsulated in the micro-channels; scale marks and corresponding numerical values are arranged outside the micro-channels to facilitate the quantitative reading of a detection result, the other ends of the micro-channels are communicated with the micro-reaction chambers through buffer tanks to form complete independent working units, and meanwhile, multiple working units can be arrayed on a chip to realize multichannel detection. The scale type micro-fluidic chip has the advantages of no complex instruments, convenience in carrying, low cost, simplicity and convenience in operation, easiness in reading, multi-target detection, little use amount of sample, sensitivity and the like and can be widely applied to biochemical analysis fields including medical diagnosis, food security, environmental pollution and the like.
Owner:SUZHOU DIYINAN BIOTECHNOLOGY CO LTD

Brillouin distributed optical fiber sensing based structural joint monitoring device

InactiveCN102914271BMonitor openingMonitor closureUsing optical meansSheet steelSelf compensation
A Brillouin distributed optical fiber sensing based structural joint monitoring device is characterized by comprising steel plate bases (9), a linear steel sheet (5) and an L-shaped steel sheet (8) are mounted on each steel plate base (9), a pulley (6) is mounted at each of a suspension arm end of each linear steel sheet (5) and a corner end of each L-shaped steel sheet (8), an optical fiber (1) for stretching detection is wound on the two corresponding pulleys (6) at the suspension arm ends of the linear steel sheets (5) on two sides of a structural joint, an optical fiber (2) for contracting detection is wound on the two corresponding pulleys (6) at the corner ends of the L-shaped steel sheets (8) on two sides of the structural joint, an optical fiber (3) for temperature compensation detection is connected between the optical fiber (1) for stretching detection and the optical fiber (2) for contracting detection, and each of the optical fiber (1) for stretching detection and the optical fiber (2) for contracting detection is connected with a Brillouin distributed optical fiber demodulating system through a respective connecting optical fiber (4). The Brillouin distributed optical fiber sensing based structural joint monitoring device is capable of monitoring the stretching quantity and the closing quantity of the structural joint, achieves temperature self compensation and effectively overcomes the shortcomings when the optical fibers are simply laid.
Owner:无锡苏积传感科技有限公司

An aptamer molecular probe-modified porous microneedle patch and its preparation method and application

The invention discloses a porous microneedle patch modified by an aptamer molecular probe and its preparation method and application. The preparation method comprises the following steps: step 1, preparing a PDMS needle-shaped hole microneedle array template; step 2, making The surface of the pore agent is coated with a layer of bio-adhesive to obtain a pore-making material; step 3, the pore-forming liquid and the microneedle raw material solution are poured step by step into the PDMS needle-like hole microneedle array template, and the pore-forming material is prepared. After the pore liquid and the microneedle raw material solution are solidified, peel off to obtain a microneedle patch containing a pore-forming material; step 4, prepare a porous microneedle patch: combine the microneedle patch containing a pore-forming material with a pore-forming etchant Carry out the reaction to form holes and make a porous microneedle patch; Step 5, prepare the porous microneedle patch modified by the aptamer molecular probe: react the porous microneedle patch and the aptamer molecular probe in the buffer , to obtain the porous microneedle patch modified by the aptamer molecular probe. The invention has the advantages of simplicity, convenience, high efficiency and the like.
Owner:NANJING DRUM TOWER HOSPITAL
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