27results about How to "Avoid cross interference" patented technology

This invention discloses an optimization method for a dual-source FSI ranging system based on wavelet synchronous compression transform, mainly addressing the problems of high system complexity and poor performance in existing dual-source FSI ranging systems when separating mixed interference signals. The solution includes: constructing a dual-source FSI ranging optical path to generate mixed interference signals; building a signal processing module based on the wavelet synchronous compression transform algorithm; sending the mixed interference signals to the signal processing module through a data acquisition device in the ranging optical path; using wavelet synchronous compression transform to separate the interference signals generated by the two lasers in the frequency domain; then achieving separation of the individual interference signals by reconstructing the frequency bands of the two interference signals; and finally using the separated two interference signals to calculate the distance and obtain the final ranging result. This invention can guarantee ranging accuracy without increasing the complexity and design cost of the dual-source FSI ranging system.

The invention belongs to the technical field of petroleum well logging, and discloses a method for eliminating array induction direct coupling signals, which comprises the following steps of: calibrating the unit thickness change of an adjusting piece and the quantitative contribution of each receiving coil direct coupling signal through electromagnetic simulation modeling and an underground environment equivalent experiment; the target thickness is solved and replaced through a linear correction model, closed-loop calibration is matched to enable a direct coupling signal to approach a preset threshold value, based on array induction logging, an existing three-coil system structure is difficult to thoroughly offset the direct coupling signal due to machining errors, useful signal extraction is seriously disturbed, the method does not need to modify a core structure of an instrument, operation is easy and convenient, adaptability is high, and the method is suitable for large-scale popularization and application. Direct coupling signals are eliminated accurately and thoroughly, the measurement accuracy of the stratum conductivity is effectively improved, and reliable data support is provided for oil and gas reservoir identification and evaluation.

The utility model belongs to the technical field of buffer devices, and discloses a novel ram buffer device of an internal mixer. The ram is connected with the cross beam through a pressing rod; the pressing rod is sleeved with a pressing cover plate; a buffer device is arranged between the cross beam and the pressing cover plate; the buffer device comprises a cuboid buffer pad and a cuboid connecting seat; one end of the cuboid connecting seat is fixed on the pressing cover plate, and the other end of the cuboid connecting seat is connected with the cuboid cushion; and the length-width ratio of the end surface of the cuboid buffer cushion is 2.3: 1-2.5: 1. The utility model is used for increasing the contact area of the cross beam and the rectangular cushion. The effect of preventing the cross beam from being in direct contact with the connecting base in the ram buffering device is achieved. The ratio of the rectangular contact area of the buffer device and the cross beam to the original circular buffer area can reach 4.5 times, and the service life can be greatly prolonged.

The embodiment of the application provides a deep and shallow combined pool multi-board wave making composite control system, and relates to the technical field of ocean engineering model testing. A main controller is in communication connection with a shallow water wave making system, a deep water wave making system and a user control terminal. The main controller receives token application information from the user control terminal, judges the state of the token application information, and outputs corresponding token authorization information to the user control terminal according to the state judgment result. The main controller matches the control instruction set of the user control terminal and the target wave making system according to the token authorization information to obtain a target instruction set. The user control terminal calls the target instruction set to output a wave making control signal to control the target wave making system. The token control of the main controller ensures that the control right of the user control terminal to the target wave making system is exclusive, realizes safe permission isolation and flexible switching of independent control and joint control of the deep and shallow water wave making systems in a multi-user environment, and avoids overstepping operation and instruction conflict.

The utility model provides an air quality detector, including main casing and the top cover of being connected in the top of main casing, be equipped with a plurality of independent chambers for installing sensor in main casing, and the part of main casing is directly opposite sensor is evenly distributed with a plurality of air inlet hole, be equipped with a plurality of interval setting ridge between top cover and main casing to make the clearance between the periphery of top cover and main casing form the flow guide groove. The utility model discloses a flow guide groove is arranged in the periphery of top cover, and the air inlet hole is used for air inlet in the position of corresponding sensor in lower part, not only makes the air even flow, avoids the airflow dead angle and retention, improves the response time and measurement accuracy of sensor, also ensures internal gas flow unobstructed, reduces the internal and external pressure difference, promotes the detection accuracy, through setting up independent detection chamber, different sensor module is isolated, and each sensor is equipped with independent detection chamber, prevents the cross interference between sensor, ensures each sensor independent work, improves the independence and reliability of measurement data.

This invention discloses a rapid construction method for large-section steel linings at multiple elevations in hydropower stations, belonging to the field of water conservancy and hydropower engineering construction technology. It aims to solve the problems of poor accessibility and high transportation risks on temporary roads leading to dams, and the limited lifting capacity of cable cranes due to civil engineering work, resulting in low installation efficiency and difficulty in ensuring the construction period. This invention manufactures individual sections of the steel lining downstream of the dam, assembles them, and then uses a gantry crane to hoist them onto a track-mounted electric flatcar, which is then horizontally transported to the dam base along a dedicated track. At the installation elevation, a modular cantilevered fixed gantry crane is assembled. This gantry crane has no trolley traveling mechanism; its legs directly rest on the dam body, allowing for rapid installation, disassembly, and reuse. The gantry crane vertically lifts the steel lining to the installation elevation, and then uses an omnidirectional hydraulic transfer trolley to precisely transport it to the work position, where the installation gantry crane completes the assembly. The gantry crane can be disassembled and transported to the next elevation for reuse. This invention eliminates reliance on temporary roads and cable cranes, features tight process connections, and uses versatile and reusable equipment, improving construction safety and efficiency, and is suitable for continuous construction at multiple elevations of dams.

The application provides a bimetallic nanoparticle-based acetone gas sensor and a preparation method thereof. The preparation method comprises the following steps: adding tin chloride into a solution containing a complexing agent and deionized water, stirring for 10 minutes at 60 DEG C, then adding ammonia water until the pH reaches 3, and obtaining a tin hydroxide precipitate powder after centrifugal washing; adding the tin hydroxide precipitate powder into indium trichloride tetrahydrate powder, gold chloride powder and platinum tetrachloride powder in sequence, and performing ball milling mixing, sintering at 600 DEG C for 2 hours, and obtaining bimetallic nanoparticle; adding ethylene glycol and zirconium oxide ball milling beads into the bimetallic nanoparticle, performing ball milling for 8 hours, obtaining a point glue solution, coating the point glue solution on a micro motor heating plate, drying at room temperature, and sintering at 200-400 DEG C for 3-4 hours, and obtaining the bimetallic nanoparticle-based acetone gas sensor. Therefore, the excitation temperature can be effectively reduced, and the selectivity to acetone gas can be improved.

The invention relates to the technical field of food safety detection, in particular to a food trace element and animal residue integrated detection assembly and method combined with an enzymatic reaction, and the assembly comprises a sample storage module which pumps liquid through a micro pump; the enzymatic reaction module comprises a substrate and a pair of mutually independent reaction units, the substrate is communicated and connected with the sample storage module through a pipeline, and the substrate is also communicated and connected with the pair of reaction units; wherein the two reaction units comprise a first immobilization enzyme aiming at heavy metal ions, a first reaction system for developing an enzyme reaction substrate, a second immobilization enzyme aiming at veterinary drug residues and a second reaction system for developing the enzyme reaction substrate. The first reaction unit aiming at heavy metal ions and the second reaction unit aiming at veterinary drug residues are integrated on the liquid outlet side of the same microfluidic substrate, one-time sample adding and synchronous distribution of the liquid to be detected are achieved through the microfluidic channel network, high integration and synchronization of the detection process are achieved, and the detection efficiency is improved.

The application discloses a kind of fuel cell proton membrane multi-component gas synchronous separation test methods, belong to material performance test technical field, it includes obtaining proton exchange membrane initial chamber parameter, by electromagnetic heating and spray humidification adjustment, build target temperature and humidity environment;Multi-component mixed gas is injected to high-pressure cavity and drives penetration, generates transmembrane pressure difference parameter and mixed permeation gas;Permeation gas is guided into water-resistant chromatography channel and is carried out gas-liquid-solid distribution processing, and output single component sequence;The change of sequence thermal conductivity is measured and is converted into electrical signal, generates concentration response signal;Model solution is carried out in combination with pressure difference parameter and response signal, and water vapor and multi-component gas permeability are obtained synchronously.The application adopts dynamic environment regulation and control technology of electromagnetic heating and spray humidification, combines water-resistant chromatography separation and thermal conductivity detection, can realize the synchronous, quantitative test of water vapor and multiple permeation gases of fuel cell proton membrane under multiple working conditions.

The image processing method and system of ASL cerebral perfusion kinetics, the associated marker, can sensitively reflect the cerebral microvascular function and hemodynamic abnormalities in the early stage of AD disease, and provide reliable technical means for early diagnosis, risk assessment and mechanism research of AD. The method comprises: (1) grouping the subjects; (2) collecting magnetic resonance imaging data; (3) preprocessing the magnetic resonance imaging data; (4) segmenting the brain regions of the T1 structural image by using an automatic segmentation algorithm to obtain the gray matter, white matter, hippocampus and each brain lobe of the region of interest; (5) calculating the cerebral perfusion related kinetic parameters based on the multi-delay ASL data, generating the parameter distribution map at the voxel level, and registering it to the structural space; (6) extracting the average parameter value in each region of interest, and performing volume normalization processing; (7) using statistical analysis method to compare and evaluate the differences between different groups.

This utility model discloses a new energy mobile air compressor, comprising a separate air compressor unit and a mobile battery unit. The air compressor unit mainly includes a mobile chassis, a screw air compressor, a drive motor, a motor controller, and various cooling systems. The air compressor unit is connected to the mobile battery unit via a pluggable integrated composite power supply cable. This cable integrates both high-voltage power supply cables and low-voltage control cables, enabling the transmission of high-voltage DC power and information communication and control between the devices. The mobile battery unit can be a dedicated mobile energy storage box or a new energy vehicle with external discharge capabilities. This design separates the power source from the main unit, improving the flexibility and convenience of equipment use.

The invention discloses a feeding device matched with a pipe cutting machine and a control method, the feeding device comprises a plurality of feeding mechanisms, and each feeding mechanism comprises a material frame; the material storage mechanism comprises a material warehouse and a discharging mechanism, and the discharging mechanism can convey pipes to the first discharging table; comprising a material distributing part for driving the pipes to be transferred from the first discharging table to the second discharging table; comprising a material pushing part, the material distributing part drives the pipes to reach a material pushing position, and the material pushing part pushes the pipes, in a stacked state, on the material distributing part back to the material warehouse through telescopic movement; comprising a conveying part; and the conveying part conveys the pipes from the material preparation position to the conveying mechanism, and the conveying mechanism conveys the pipes to a feeding port of the pipe cutting machine. The invention provides a feeding device matched with a pipe cutting machine and a control method, and aims to solve the technical problems that an existing feeding device is large in material distribution difficulty and insufficient in feeding precision, and the machining efficiency is limited due to the fact that the existing feeding device needs to be matched with a high-requirement clamping type pipe cutting machine.

The application discloses a car lamp structure with cold and warm color light switching function and a car, which comprises a shell, a lamp bead assembly, a reflecting element, an inner lens group and an outer lens arranged in the shell in sequence along a light path transmission direction; wherein the lamp bead assembly comprises multiple lamp bead groups; the reflecting element adopts a condenser; the inner lens group is arranged in one-to-one correspondence with the lamp bead group, each inner lens group has a plane facing the light entrance surface of the reflecting element and a plurality of convex arc surfaces facing the light exit surface of the outer lens, and the ratio of the size b of each inner lens group in the left-right direction to the size a in the front-rear direction ranges from 2 to 24; the outer lens is arranged on the end surface of the shell; the application can compress the size of the inner lens in the light path direction, directly reduce the transmission distance of light from the reflecting element to the outer lens, and allow the inner lens group to be arranged in parallel and compact in the left-right direction, thereby avoiding the redundant space caused by the circular or square lens in the traditional design.

This invention belongs to the technical field of additive manufacturing technology and discloses an in-situ oxygen-controlled composite scraper and a laser selective melting device equipped with the in-situ oxygen-controlled composite scraper. The bottom of the composite scraper includes a second scraper (16), an air jet unit, and a first scraper (18) arranged sequentially along the powder spreading direction. It has an internal gas storage chamber (15) and a powder drop chamber (19). The first scraper is used to evenly spread the powder raw material to form an initial powder layer. The air jet unit performs in-situ oxidation treatment on the surface of the initial powder layer by spraying oxygen-containing gas. The second scraper is used to level and compact the powder layer after the in-situ oxidation treatment. This invention improves the composition and structure of the composite scraper and utilizes the overall cooperation of the first scraper, the air jet unit, and the second scraper to generate a synergistic mechanism of powder spreading, in-situ oxidation, and secondary compaction, breaking through the process limitation that it is difficult to construct oxide dispersion-strengthened structures in-situ during additive manufacturing.

The utility model discloses an outdoor integrated cabinet, including side by side setting's first cabinet body, second cabinet body, base and top cover, first cabinet body and second cabinet body are all the closed cabinet body with independent cabinet door, and the base fixed connection is in the below of cabinet body main structure, and the top cover is embedded and is connected in the top of cabinet body main structure, the inside of first cabinet body and second cabinet body is provided with air conditioner respectively, forms double air conditioner heat dissipation system, and the inside of base is provided with airtight air exchange channel, and the both ends of airtight air exchange channel are communicated with the inside space of first cabinet body and second cabinet body respectively, and the channel mouth department of airtight air exchange channel is provided with electric air valve, and electric air valve and air conditioner controller of double air conditioner heat dissipation system are electrically connected, when one air conditioner is in trouble, airtight air exchange channel opens automatically to communicate first cabinet body and second cabinet body and exchanges heat, realizes continuous heat dissipation, avoids the equipment downtime because of single point trouble, improves heat dissipation effect, and greatly improves system operation reliability.

This invention discloses a system and method for continuous communication and dynamic sampling of plant volatiles. The system includes a device support system, an air purification and driving system, an airflow distribution and control system, a multi-channel plant chamber, a three-way valve switching system, a drying and sampling interface system, and a collection and negative pressure system. The air purification and driving system purifies the airflow and is connected to the airflow distribution and control system to provide purified airflow. The airflow distribution and control system is connected to the multi-channel plant chamber. The drying and sampling interface system is connected to the collection and negative pressure system to collect the sampled airflow and discharge it through negative pressure. The collection and negative pressure system is connected to the multi-channel plant chamber to form a continuous airflow path through all systems. This invention achieves dynamic sampling and parallel experimentation while maintaining continuous communication of plant volatiles.

The application discloses a trailer mounting method for a deep water test pool and relates to the technical field of deep sea engineering, which comprises the following steps: S1, basic frame manufacturing and installation: taking the center line of the on-site pool as the X-Y trailer installation reference, manufacturing and installing the basic frame; S2, X-Y trailer main body installation (including the wheel set); S3, drive device installation; S4, auxiliary trailer installation; S5, hydraulic brake system installation; S6, guide device installation; S7, cleaning device installation; S8, speed measuring device installation; S9, welding and fixing the buffer support according to the on-site actual measurement size, synchronously welding the front and rear buffer blocks of the X-Y trailer; installing the hydraulic buffer on the buffer support; S10, electric control cabinet positioning base and electric control circuit installation; and S11, power supply system installation: the slide wire is hung on the installation support through the insulator, and the carbon brush slider of the current collector on the main trailer is kept in close contact with the lower surface of the slide wire. The application effectively solves the installation problem caused by the space sealing of the laboratory through the step-by-step assembly scheme.

The application discloses a kind of intelligent oil pump oil quality monitoring methods based on multi-source data fusion, belong to transformer field, this method includes multi-source data acquisition, data processing, data fusion, result display, data long-distance transmission steps: first through micro water, pressure, flow sensor acquisition oil pump pipeline multidimensional original data and transport to single-chip microcomputer control panel;Again, original data is filtered to obtain standardized data set;Subsequently, using weighted average method and fuzzy logic combined multi-source data fusion algorithm processes data set, constructs oil quality state evaluation model to determine whether oil quality is deteriorated;Then, the monitoring result is locally visualized;Finally, long-distance transmission of monitoring data and local remote data synchronization are realized.The application improves the accuracy of oil quality monitoring through multi-parameter collaborative monitoring and data fusion, realizes the local real-time display and remote real-time monitoring of oil quality state, and adapts to the operation requirements of transformer maintenance site.

This application discloses an automated production device for cutting and stamping photovoltaic steel frames, relating to the field of photovoltaic module processing equipment technology. It includes a frame, a cutting assembly on top of the frame for cutting the beveled ends of the steel frame, mounting seats slidably mounted at both ends of the frame, a rotating seat rotatably mounted within the mounting seats for adjusting the cutting angle, and a support seat for supporting the steel frame. A gantry crane robot for conveying the steel frame is mounted above the cutting assembly on the frame. A stamping assembly for punching holes in the steel frame is mounted on one side of the frame, and a transfer conveying assembly for transferring the steel frame is mounted on the side of the frame facing the stamping assembly. The sliding mounting seats can accommodate photovoltaic steel frames of different lengths, the rotating seats can flexibly adjust the cutting angle, and the gantry crane robot and transfer conveying assembly achieve automated material conveying and transfer, reducing labor costs, improving product consistency and production efficiency, and meeting the needs of continuous mass production of photovoltaic steel frames.

The utility model belongs to the technical field of environmental monitoring, and particularly relates to a distributed ammonia gas leakage monitoring system, which comprises a laser driving module, a laser, an optical fiber splitter, an optical fiber absorption cell, an optical switch, a photoelectric detector, a photoelectric signal processing module and a display alarm module, the laser driving module is connected with the laser, and an output port of the laser is connected with an input port of the optical fiber splitter; the optical fiber splitter is provided with a plurality of output ports, and each output port is connected with an input port of an independent optical fiber absorption cell; the input port of the optical switch can be selectively connected with the output port of any optical fiber absorption cell; and the output port of the optical switch is connected with the input port of the photoelectric detector. The distributed ammonia gas leakage monitoring system can quickly and effectively monitor the ammonia gas concentration at multiple positions, is high in detection precision, short in response time, free of interference of other gases, long in service life and very suitable for ammonia gas leakage monitoring of an ammonia fuel ship.

This invention provides an infrared beam anti-interference device and method for sowing monitoring, belonging to the field of agricultural sowing technology. The device includes a main control module, a pulse drive module, an infrared beam module, and a signal processing module. The main control module is electrically connected to the pulse drive module, the infrared beam module, and the signal processing module. The main control module is used to output timing control and high-frequency pulse signals, receive detection signals and determine the next sowing state, and simultaneously complete control processing including parameter configuration and timing synchronization. The pulse drive module is used to execute high-frequency pulse signals from the main control module and supports time-division multiplexing control. The infrared beam module is configured to use high-frequency pulse signals for signal transmission and reception and electrical signal conversion under the time-division multiplexing mechanism. The signal processing module is used to process the electrical signals into detection parameters that can be recognized by the main control module. The anti-interference method is based on the above-mentioned anti-interference device. This solution can significantly improve signal recognition accuracy and greatly reduce stray light interference.

The invention provides TSP-1 detection equipment. The TSP-1 detection equipment is characterized by comprising a sensing core module, according to the sensing core module, a Metglas alloy is used as a substrate, and after chromium and gold modification is carried out on the surface, a TSP-1 antibody is attached to the substrate. The equipment is a novel detection scheme with high sensitivity, high specificity, low cost and portability, rapid and accurate detection of TSP-1 is achieved, the detection limit (12.857 ngmL <-1 >) and the linear range (12.857-100 ngmL <-1 >) of the equipment completely meet the clinical diagnosis requirement of OA, meanwhile, interference of external factors such as electromagnetic interference and light source influence is avoided, the equipment can be directly applied to actual joint fluid sample detection of OA patients, and the detection efficiency is improved. An efficient technical means is provided for OA early diagnosis and disease prognosis monitoring, the detection cost is reduced, and the convenience and practicability of clinical detection are improved.

The utility model relates to a feeding device for preparing calcium zinc stabilizer, which comprises a storage bin, a material supplementing port arranged at the top of the storage bin and a feeding pipe arranged at the bottom of the storage bin, a quantifying mechanism is arranged in the feeding pipe, and the quantifying mechanism comprises an upper baffle and a lower baffle which are arranged at intervals along the axial direction of the feeding pipe, a temporary discharging space is formed between the upper baffle and the lower baffle, the upper baffle is provided with a feeding port communicated with the storage bin, and the lower baffle is provided with a discharging port; the baffle I is rotatably connected to the upper baffle; the baffle II is rotatably connected to the lower baffle; the synchronous connecting rod is connected with the baffle I and the baffle II; the synchronous connecting rod drives the first baffle and the second baffle to rotate synchronously. According to the quantitative feeding device, the quantitative mechanism is arranged, and a closed feeding and discharging alternating mechanism of the temporary discharging space is adopted, so that the constant feeding amount each time is ensured, a feeding channel and a discharging channel are strictly isolated in the quantitative process, and the cross interference of feeding and discharging at the same time is avoided.

This application discloses a method and apparatus for measuring the dynamic angle of heterodyne shearing interference, belonging to the field of optical angle measurement technology. The method includes: providing dual-frequency beams with different frequencies and orthogonal polarization states, propagating along a quasi-common optical path to the object under test; receiving the outgoing beam after deflection by the object under test, maintaining its quasi-common optical path propagation; separating the outgoing beam into two orthogonally polarized sheared beams, forming an interference optical path with transverse shear; performing heterodyne interference on the sheared beams, receiving and outputting a difference-frequency interference electrical signal by a photodetector; and finally, calculating the dynamic deflection angle of the object under test by demodulating the phase change of the difference-frequency signal. This application, through the combination of quasi-common optical path design and shearing interference, achieves a natural decoupling of displacement and rotation at the physical level, exhibiting high precision, high dynamic response, strong anti-interference capability, and good engineering practicality.

The utility model belongs to LED down lamp detection technical field, concretely relates to a kind of stable type LED down lamp aging detection frame, including frame, test board and rectangular line box, multiple test board is equipped in frame, rectangular line box is equipped on test board, multiple line clamps are equipped on rectangular line box, groove is opened on test board, the fixed block is equipped in frame top, external socket is connected on fixed block, frame bottom is equipped with trundle fixed plate, universal wheel is equipped under trundle fixed plate, the test board of high-temperature-resistant insulating material prevents electric leakage, guarantees operator safety, external socket is fixed in frame top, far from test area, reduce contact risk.

The utility model discloses a vacuum heat treatment furnace, belongs to the field of heat treatment equipment, and is used for solving the problem of flow abnormity caused by uneven cooling water distribution, cooling temperature control deviation and waterway blockage. The vacuum heat treatment furnace comprises a furnace body, a cooling water using part and a cooling water distribution system, wherein the cooling water distribution system comprises a water inlet pipe, a water return pipe, a water pump, a water inlet branch pipe, a water return branch pipe, a flow detection device, a temperature detection device and a control device; the water inlet pipe, the water return pipe, the water inlet branch pipe and the water return branch pipe are arranged outside the vacuum heat treatment furnace; one end of the water inlet branch pipe is connected with the water inlet pipe, and the other end is connected with the water inlet end of a water using part; one end of the water return branch pipe is connected with the water return pipe, and the other end is connected with the water outlet end of a water using component; the flow detection device is connected with the water return branch pipe; the temperature detection device is arranged on the water consumption part; the flow detection device, the temperature detection device and the water pump are all electrically connected with the control device.