92results about How to "Isolate interference" patented technology

The invention relates to the technical field of peanut oil production control, in particular to an intelligent optimization system for a peanut oil production control process, which comprises a process parameter modeling module for collecting peanut oil production parameters, performing linear combination on the peanut oil production parameters, analyzing the correlation of the peanut oil production parameters to quality indexes, and calculating the quality indexes of the peanut oil production parameters; and obtaining a process parameter mapping matrix. According to the method, through deep correlation analysis of multiple parameters in the production process, the mapping relation between the process parameters and the oil quality indexes is established, and the precision and reliability of quality control are improved. In the process control, the specific influence of each production link on the quality index is accurately reflected through standardized and linear combinatorial analysis on the parameters such as squeezing temperature, pressure, time, stirring speed and the like. By predicting the quality index under the current production condition, the response speed to the quality change is improved, so that the quality index deviation can be quickly analyzed and evaluated in real-time data monitoring.

The invention relates to the technical field of network optimization, in particular to a network data management system based on intelligent flow control, which comprises a flow partitioning and sample extracting module, a flow partitioning and sample extracting module, a flow partitioning and sample extracting module, a flow partitioning and sample extracting module and a flow partitioning and sample extracting module, and generating a load feature sample set according to the screening result. In the invention, through extraction of the time sequence information and division of the sub-traffic segments, the network traffic data is subjected to packet management, and the loads of the source node and the target node are accurately marked and screened, so that more accurate load characteristic data is generated, and unnecessary data redundancy is avoided. In the calculation of the load weighted value, the prediction precision of the data flow load is further improved by combining the dynamic priority weight and the multi-dimensional weight mechanism of the flow variable quantity, so that the trend change in the subsequent time slice can be estimated more scientifically.

The invention relates to the technical field of motor driving, and discloses a universal integrated motor driving device, which comprises an optocoupler isolation module, an integrated logic module, a power MOS (Metal Oxide Semiconductor) tube driving module, a power module and a current-limiting protection module, the optical coupler isolation module is connected with the integrated logic module; the integrated logic module is connected with the power MOS tube driving module; the power MOS tube driving module is connected with the power module; the power module is connected with a load motor; and the current-limiting protection module is connected with the power module. According to the invention, the optical coupler isolation module, the logic processing module, the MOS tube driving module and the current-limiting protection module are modularly integrated, so that the circuit design is simplified, and the reliability and maintainability of the system are improved.

The invention discloses an integrated wafer pre-adjusting part and a wafer processing device, the integrated wafer pre-adjusting part comprises a first lifting platform, an adjusting mechanism, a detector and a code scanner, and the adjusting mechanism comprises a hook claw, a turntable, a first driving assembly and a second driving assembly; the first driving assembly is matched with the hook claw to move the wafer at the preparation station to the adjusting station, so that the wafer is positioned; the second driving assembly is matched with the turntable to rotate the wafer, so that the detector and the code scanner can confirm the notch position and coding information of the wafer, and edge searching and code scanning of the wafer are realized; the left and right sides of the wafer returning to the preparation station are limited by the slots, and the front and back positions are limited by the output stroke of the first driving assembly, thereby achieving the centering of the wafer. According to the wafer processing device, the wafers are pre-adjusted quickly through the integrated wafer pre-adjusting part, each wafer in the wafer processing device can have a unified and accurate position and posture before processing, and accurate data and a positioning basis are provided for subsequent wafer processing procedures.

The invention discloses a device and method for measuring the photothermal effect of a two-dimensional material, and the device comprises an optical bread board, the optical bread board is provided with a light heating module, an electric heating module and a measurement module, the measurement module is provided with a to-be-measured material, and is used for supporting the to-be-measured material and obtaining the temperature of the to-be-measured material; the electric heating module is used for heating a to-be-tested material and obtaining the temperature in the heating process; the light heating module is used for illuminating a to-be-tested material and acquiring light power during illumination; the measurement principle advantage of the measurement device is remarkable, the Newton's cooling law is used as the core calculation principle, a physical model for calculating the photothermal conversion efficiency is simplified, the measurement device can calculate the photothermal effect of the two-dimensional material more visually and accurately, the measurement cost can be effectively reduced, and the measurement operation can be simplified.

The invention provides a WPT system and a parameter design method based on four-pole-plate coupling full-duplex communication, four groups of coupling pole plates are arranged in the system, the first group of coupling pole plates and the second group of coupling pole plates are used as coupling structures of energy transmission channels, the first group of coupling pole plates and the third group of coupling pole plates are used as data forward transmission coupling interfaces, and the third group of coupling pole plates are used as data reverse transmission coupling interfaces. The second group of coupling polar plates and the fourth group of coupling polar plates are used as data reverse transmission coupling interfaces, a primary side signal source and a primary side LC wave blocking network are arranged between two primary side polar plates of the data forward transmission coupling interface, and a secondary side compensation inductor and a secondary side sampling resistor are arranged between two secondary side polar plates of the data forward transmission coupling interface; a primary side compensation inductor and a primary side sampling resistor are arranged between two primary side pole plates of the data reverse transmission coupling interface, and a secondary side signal source and a secondary side LC wave blocking network are arranged between two secondary side pole plates of the data reverse transmission coupling interface. The invention has the effect that the full duplex mode transmission of signals can be realized by using fewer devices.

The invention relates to the technical field of electronic devices, discloses a low-thermal-resistance insulation integrated top heat dissipation power device, and aims to solve the problems that a traditional power device is high in thermal resistance, insufficient in insulation reliability and complex in assembly. The device comprises a frame base island, an insulating layer, a SiC chip, a bonding aluminum wire, a pin, an injection molding body and a metal heat dissipation top cover, the insulating layer is a high-thermal-conductivity ceramic layer such as aluminum nitride, the thickness of the insulating layer is 20-150 micrometers, the insulating layer and the frame base island are integrated through high-temperature oxidation bonding, and the metal heat dissipation top cover is bonded with the insulating layer in a low-thermal-resistance mode. An external insulation part is not needed, the assembly process is simplified, an efficient heat dissipation channel is constructed, contact thermal resistance is reduced, meanwhile, wide-temperature-range insulation stability is guaranteed, long-term operation reliability and service life of the device are improved, and the structure is suitable for a high-power-density power electronic scene.

The application discloses a downhole multi-parameter logging device and belongs to the technical field of logging while drilling, comprising a drill collar, a battery module and a circuit module are respectively arranged at the two ends of the inner cavity of the drill collar and are axially fixed through locking modules, a metal centralizer is fixedly arranged in the inner cavity of the drill collar, a plurality of independent centralizing blocks are arranged at the center of the metal centralizer, the drill collar comprises a drill collar body, an antenna housing, a strip-shaped magnetic core and a coil, and stable signal transmission is guaranteed, the battery module comprises annular batteries and butterfly springs, can be replaced on site and has a damping function, the circuit module comprises resistivity, azimuth gamma and inclination measurement modules, is integrally designed and has strong anti-interference performance, the metal centralizer realizes self-adaptive centralizing through centrifugal force and hydraulic damping, and the independent centralizing blocks can compensate temperature errors, the device is stable in structure, is suitable for complex well conditions, is convenient to maintain and can realize accurate and synchronous measurement of multiple parameters, thereby providing reliable data support for logging while drilling.

The invention provides a liquid floated gyroscope signal conversion circuit, conversion device and conditioning conversion method, and the conversion circuit comprises a differential amplification circuit, a phase-sensitive demodulation circuit, a DC amplification filter circuit, an AC output circuit, an anti-reverse connection filter circuit and a secondary power supply circuit. The phase-sensitive demodulation circuit and the direct-current amplification filter circuit are used for performing phase demodulation and conditioning processing on the gyro output signal, outputting a direct-current output signal which is used for measurement of signal acquisition equipment and has small scale factor discreteness, independently performing voltage following processing on the gyro output signal, and outputting an alternating-current output signal; the alternating current signal and the direct current signal are output in parallel and do not influence each other, so that the output signal of the gyroscope body is truly restored, the signal output quality is improved, and the testing efficiency of measuring the angular rate of rotation of the carrier along the gyroscope sensitive axial direction by applying the liquid floated gyroscope is greatly improved.

The invention relates to the field of material surface treatment and machining, in particular to a method and device for directly preparing a copper alloy coating on the surface of a titanium alloy sealing rod. The process comprises the steps that firstly, cleaning and metal powder drying treatment are conducted on a sealing rod base material, and the base material is clamped on a rotary bearing mechanism in an adjusting box body; sealing the adjusting box body and filling inert gas to replace air until the oxygen content reaches the standard; the laser cladding mechanism is controlled to conduct scanning preheating on the surface of the base material in a non-powder-feeding state; then a powder feeding function is started, spiral high-speed laser cladding is carried out in cooperation with rotation of the base material and axial feeding of the cladding assembly, and closed-loop adjustment of the protective gas flow is carried out in the cladding process; and after cladding is completed, the base material is transferred into the heating furnace body in the box body to be subjected to post-treatment slow cooling, laser scanning preheating and in-furnace slow cooling are combined, atmosphere closed-loop control in a closed environment is matched, and the effect of restraining cracking and oxidation of a titanium alloy cladding layer is achieved.

The utility model relates to the field of agricultural machinery engineering technology discloses a leek field weed cleaning device, include: handle, for U type state, horizontal setting, U type middle part both sides can place the shoulder strap, shoulder strap, total two groups, through two groups of round magic paste and paste to handle, sliding rod, by a group of thick cylinder and a group of thin cylinder weld together, and place obliquely, and thick cylinder is fixed in handle middle part one side, and thin cylinder one end is provided with fixed mechanism, fixed rod, for cylinder cover, place obliquely, and its one end and the thin cylinder end of sliding rod sliding connection. The locking effect of sliding rod cooperation and fixed mechanism can quickly adjust the overall length of the device, adapt to different height users, the position adjustment of sliding blade and L type board can flexibly change the operation distance, accurately adapt to different row distance leek field, the shoulder strap is convenient for user to bear the device, reduces the handheld operation burden, the adjustment component is simple to operate, and can be stored and save space, improves overall operation efficiency and use safety.

The invention discloses a digital sun sensor based on a linear array CCD (Charge Coupled Device), belongs to the technical field of sun tracking sensors, and aims to solve the problems of high hardware development difficulty, high hardware cost and high power consumption in the prior art. The device comprises an integral shell, and a protection window, a double-rectangular-opening diaphragm sheet, a neutral attenuation sheet, a linear array CCD module, a rotating motor and a main control board which are arranged in the integral shell, the main control board controls the rotating motor to drive the double-rectangular-opening diaphragm piece, the neutral attenuation piece and the linear array CCD module to rotate integrally. The linear array CCD module is electrically connected with the main control board; the double-rectangular-opening diaphragm is provided with two long-strip-shaped rectangular openings, and the long sides of the rectangular openings are perpendicular to the length direction of the linear array CCD module all the time. Sunlight is imaged on the linear array CCD module after sequentially passing through the protection window, the neutral attenuation sheet and the double-rectangular-opening diaphragm, and the main control board calculates the azimuth angle and the elevation angle of the sun according to the centers of images formed on the linear array CCD module at at least two different angles.

The invention discloses a mine heavy truck weighing charging gate which comprises a rack, a mounting frame is horizontally arranged on the rack, a stock bin is arranged above the mounting frame, a metering discharging mechanism is slidably connected to the mounting frame, the metering discharging mechanism further comprises a metering tank slidably connected with the mounting frame, a weighing inner shell is arranged in the metering tank, and the weighing inner shell is arranged in the metering tank. The weighing inner shell is used for bearing materials; the weighing inner shell abuts against a weighing sensor fixed to the metering tank through a force transmission component, and a gap is reserved between the weighing inner shell and the inner wall of the metering tank. The metering discharging mechanism further comprises a dustproof assembly which slides synchronously with the metering tank, a discharging mechanism is arranged between the metering tank and the stock bin, and the discharging mechanism is used for guiding materials from the stock bin to the metering tank. The weighing function module, the discharging function module and the dust removal function module are integrated on the metering discharging mechanism capable of transversely sliding, and uniform material distribution and metering loading are achieved.

The application relates to the technical field of swing oil cylinders, in particular to a swing oil cylinder which comprises a cylinder body, an end cover, a piston, and is further provided with a first locking nut which is fixedly connected with the cylinder body, and the hydraulic pressure borne by an output shaft body is transmitted to the cylinder body; the end cover is fixedly connected with the cylinder body, and the reaction force of the hydraulic pressure for moving the piston to a first chamber is transmitted to the cylinder body; the two jointly act on the hydraulic pressure for reciprocating the piston, and the hydraulic pressure no longer directly acts on the output shaft body, so that the reaction force of the hydraulic pressure for reciprocating the piston borne by the output shaft body is not transmitted to a thrust washer or a needle bearing, the thrust washer or the needle bearing is prevented from rotating and rubbing under the condition of bearing huge hydraulic pressure, is quickly abraded or damaged, and a shaft jamming fault is caused, and the service life of a thrust part is prolonged.

The invention relates to the technical field of coating spraying detection, and particularly discloses an external wall heat insulation coating spraying detection device based on an overhead working truck, which comprises a truck body, an extension arm is arranged on the truck body, a horizontal adjusting platform is rotatably arranged at the end part, far away from the truck body, of the extension arm, and a mounting platform is rotatably mounted on the horizontal adjusting platform; an adjusting mechanism is arranged on the horizontal adjusting platform, a detection cylinder is arranged on the mounting platform, and a detection assembly is arranged in the detection cylinder; after the operation vehicle body moves to the position below the detection area, the extension arm is controlled to extend the tail end to the target height, the mounting platform is driven to rotate through the adjusting mechanism on the horizontal adjusting platform so that the mounting platform can be kept perpendicular to the wall surface, and then the detection cylinder on the mounting platform is controlled to be close to the wall surface; and detecting the micro-porosity of the coating by using an internal detection assembly.

This utility model relates to the field of biomedical technology and discloses a professional shaker for gynecological liquid-based cytopathology, comprising a base, an outer shell, an inner shell, and a support assembly. A vibrating base plate is mounted on the top of the base, and a vibrating assembly is mounted on the bottom of the vibrating base plate, located within the inner cavity of the base. The outer shell is mounted on the top surface of the vibrating base plate, and a top cover is detachably connected to the top of the outer shell. A first magnetic connection part is mounted on the bottom of the inner side wall of the outer shell. The inner shell is located within the inner cavity of the outer shell, and a second magnetic connection part is mounted on the bottom of the outer side wall of the inner shell, magnetically connected to the first magnetic connection part. The top of the inner shell contacts the top cover. The support assembly is mounted on the inner wall of the inner shell, and several cell fluid tubes are detachably connected to the support assembly. This utility model enables precise vibration and temperature control, allowing for the simultaneous and efficient processing of multiple gynecological samples, thus improving work efficiency.

The invention provides a pollutant spatial distribution and blow-off and tempering limit measurement method based on a flat flame burner, and relates to the technical field of combustion experiment measurement. According to the method, on the basis of a flat-flame burner, a quartz cover is arranged above the flat-flame burner to form a locally-closed space, and a long-strip-shaped measuring window is formed in the side face; an X-Y plane movable precision probe structure is arranged on the outer side of the window, so that the tip of the sampling probe can extend into a region adjacent to the flame at any coordinate point in the window plane; a camera is arranged on the outer side of the quartz cover, and a camera pixel coordinate probe physical coordinate conversion relation is established through calibration; controlling the probe to move point by point according to a preset scanning path, synchronously collecting pollutant concentration and flame images, and obtaining a pollutant two-dimensional or three-dimensional distribution field under a given working condition; parameters such as gas flow and air-fuel ratio are adjusted, the blow-off / tempering limit is approached and crossed, scanning is repeated at key nodes, and pollutant distribution characteristics in different combustion stability states are obtained.

The present invention discloses an AOI detection device based on IGBT thick aluminum wire after welding, comprising a detection device body, the bottom of the detection device body is connected with a sampling probe through an electric push rod drive, the outer end surface of the sampling probe is sleeved with a closed ring, the bottom of the closed ring is provided with a fitting mechanism, the closed ring is connected to the sampling probe drive, the inner wall of the closed ring is provided with a detection cross bar for strength detection of the aluminum wire, the device can effectively avoid the interference of ambient light on AOI detection, and can also synchronously detect the mechanical strength of the aluminum wire and the welding point.

The utility model provides a complex system cabinet based on convenient wiring, and mainly solves the technical problems that the wiring mode of the existing complex system cabinet is tedious, and the electromagnetic compatibility and protection requirements of the cabinet are affected. The complex system cabinet comprises an input power distribution cabinet, at least one power cabinet and an output power distribution cabinet which are arranged in sequence. The interiors of the cabinet body of the input power distribution cabinet, the cabinet body of the power cabinet and the cabinet body of the output power distribution cabinet are respectively used for layout of corresponding electronic components; the rear side of each cabinet body faces the same direction, a wiring groove is formed in the rear lower side of each cabinet body, and a corresponding connecting cable is placed in the wiring groove; the wiring grooves of each cabinet body are communicated with each other to form a wiring area. According to the utility model, the wiring area is arranged at the rear lower side of the cabinet body, so that the layout of electronic components in the cabinet body is not influenced, the physical integrity of the cabinet body is guaranteed, the interference of cable coupling on the electronic components is effectively avoided, and the electromagnetic compatibility and protection requirements of the cabinet are met.

The application discloses a magnetotelluric data processing system suitable for highland and cold conditions, relates to the technical field of data processing, and determines a magnetotelluric acquisition area under highland and cold conditions, arranges a plurality of sensing points in the area, establishes a local communication fence at the sensing points to acquire magnetotelluric data, establishes the distribution relationship of the local communication fence in the magnetotelluric acquisition area, analyzes and determines the position of a data aggregation point, determines all the sensing points around the data aggregation point, establishes the corresponding relationship between the data aggregation point and the surrounding sensing points, adjusts the sensing points based on the corresponding relationship, performs trusted verification on the sensing points initiating data upload applications, establishes a synchronization chain based on the verification result, associates the synchronization chain to a data processing platform for uploading magnetotelluric data, establishes a plurality of categories of processing components to perform data processing on the magnetotelluric data, realizes safe data uploading, and improves the data acquisition and processing efficiency.

The application discloses a rotating machinery fault diagnosis method based on delay-weighted visual graph and Netpro2vec, and belongs to the technical field of mechanical state monitoring and fault diagnosis. The method comprises the following steps: collecting a rotating machinery vibration signal; converting the signal into a delay-weighted visual graph, wherein, when judging whether two data points are visual, adjacent nodes of the two data points are ignored, and a weight is assigned to a visual edge, and the weight is defined as the minimum vertical distance between the two points and all data points therebetween; based on the graph, a low-dimensional feature vector is extracted by using the Netpro2vec method, specifically, a word sequence is generated by calculating a node distance distribution and a transition matrix, and a document is formed, and then a vector representation is obtained by learning through a document embedding model; and finally, the feature vector is input into a classifier to obtain a diagnosis result. The application enhances the noise resistance through a delay mechanism, and finely depicts the signal structure through a weighting mechanism, so that the precision and robustness of fault diagnosis are significantly improved.

The utility model belongs to the technical field of building equipment, and particularly relates to an assembly type green building construction wall which comprises a construction wall body, and installation assemblies are arranged on the two sides of the construction wall body. The mounting assembly comprises a mounting block, and the mounting block is fixedly connected to one side of the construction wall body. According to the utility model, the mounting assembly is arranged, and the mounting block is matched with the mounting groove, so that during mounting, the mounting block of one construction wall body is aligned with the mounting groove of the other construction wall body to be inserted, and then the screw rod, the gasket and the nut are used for fixing. Compared with a complex installation structure of a traditional fabricated construction wall, the design is simpler to operate, common constructors can master the installation method through simple training, dependence on professional technicians is greatly reduced, meanwhile, installation time and labor cost are reduced, construction efficiency is improved, and the construction cost is reduced. And the modern fast-paced building construction requirements can be better met.

The invention relates to the technical field of instrument reading, and discloses a pointer type instrument reading device and method, and the device comprises an isolation cover which is connected above an instrument panel, a light source which is arranged in the isolation cover, a camera which is arranged in the isolation cover, and an image analysis unit which is electrically connected with the camera. By arranging the sealed isolation cover and erecting the stable light source, the interference of external dust and oil dirt can be effectively isolated, the consistency of the detection environment is ensured, the reading accuracy in the severe environment is improved, and the environmental adaptability is improved. According to the invention, low-cost components and an easy-to-deploy design scheme are adopted, so that the overall cost is reduced, the installation and maintenance processes are simplified, and wide application in a power grid is facilitated. By arranging the alarm, real-time early warning is carried out, and intelligent control is achieved.

This utility model discloses a knife-anvil lifting structure for a slitting machine, relating to the field of cardboard processing equipment. It includes a frame with a knife-anvil and a knife beam horizontally positioned in the middle. Guide rails are provided on both sides of the frame. Knife-anvil supports are mounted at both ends of the knife-anvil, slidably connected to the guide rails via sliding blocks. Supports are provided on the sides of the knife-anvil supports, with slotted holes on their surfaces. A column is provided on the lower surface of the knife-anvil supports. Knife beam supports are mounted at both ends of the knife beam, rotatably connected to the frame via a rotating shaft. A support plate is mounted on the upper surface of the knife beam supports, with rollers rotatably connected to the sides of the support plate, the rollers contacting the column. A cylinder is fixedly connected to the bottom of the frame, with a hinge seat mounted on the piston rod end of the cylinder. The hinge seat is connected to the slotted holes via a pin. This utility model overcomes the shortcomings of existing technologies, effectively achieving convenient height adjustment and maintenance, and significantly improving equipment operating efficiency and stability.

This invention belongs to the field of sensor technology, specifically relating to an eddy current sensor system, including a signal conditioning circuit, a coaxial cable, and a probe-end circuit. The signal conditioning circuit includes a power amplification module for superimposing a DC bias voltage with an AC excitation signal to generate a mixed signal, which is then transmitted to the probe-end circuit via the coaxial cable. The probe-end circuit includes a series capacitor, a filter circuit, and a follower. The series capacitor couples an AC excitation signal from the mixed signal to drive the probe coil. The filter circuit extracts a DC bias voltage from the mixed signal to power the follower. The follower receives the impedance change signal of the probe coil and transmits it back to the signal conditioning circuit via the coaxial cable. This invention eliminates the influence of the distributed parameters of the coaxial cable on the probe characteristics. The length of the coaxial cable can be arbitrarily extended or shortened without re-matching and calibration. It also eliminates the output drift problem caused by bending of the coaxial cable and simplifies the system wiring complexity.

The application provides a structure feature driven multi-stage multi-class hierarchical screening bolt automatic sorting system and method, and belongs to the technical field of industrial standard part sorting. The system comprises five core modules, namely, a reciprocating bolt stepping transmission module, a reciprocating bolt stepping thread diameter sorting module, an infrared detection fluid driven bolt length sorting module, a bolt automatic sorting system shell and a bolt classification storage module. When batch bolts are sorted, the reciprocating stepping transmission can realize smooth conveying of bolt sequence, the mechanical structure design can realize primary screening of bolts according to thread diameters, the infrared detection and air knife driving can further realize secondary screening of bolts with the same diameter according to thread lengths, and finally, accurate and efficient sorting of batch bolts can be realized by cooperating with the classification storage device. The application adopts mechanical structure design and automatic control, has the advantages of high sorting precision, stable operation, strong anti-interference ability, low manufacturing cost and the like, and can adapt to the batch continuous sorting needs of small and medium-sized bolt classification plants.

The invention discloses a winch traction system steering pulley stress detection device, which belongs to the technical field of electric power circuit construction, and comprises a main body, a connecting shaft rotatably mounted on the main body, and a movable arm connected with the main body and provided with a roller, and further comprises a pressure sensor arranged on a stress path of the connecting shaft, the traction force sensor is used for detecting traction force borne by the steering tackle; the control panel is arranged in the main body, is electrically connected with the pressure sensor and is used for processing the traction force data; the positioning module is integrated on the control panel and is used for acquiring the position information of the steering pulley; the original invisible mechanical state is converted into real-time and accurate digital information with a position label, it is guaranteed that the signals collected by the sensor truly reflect the axial traction force borne by the tackle, the processes such as downhole pre-preparation and real-time detection in operation are omitted, the time consumption of single-time operation is shortened, and the operation and maintenance efficiency is greatly improved.

The utility model relates to the cable field, and especially relates to a multichannel isolation shielding cable comprising a cable core, a composite shielding layer, a filling layer and a protection layer, the composite shielding layer wraps the cable core, and the filling layer is filled between the composite shielding layer and the protection layer; the composite shielding layer comprises an inner shielding layer, an insulating layer and a shielding tape layer, the inner shielding layer wraps the outer side of the cable core, the insulating layer wraps the outer side of the inner shielding layer, the shielding tape layer wraps the insulating layer, and a bonding layer is arranged on the side, making contact with the insulating layer, of the shielding tape layer. According to the utility model, near-field coupling and frequency band cross interference among the wire cores can be effectively reduced, and the anti-interference capability of the cable is significantly improved.

This invention relates to an in-memory computing circuit in the field of integrated circuits, and particularly to a multifunctional in-memory computing circuit and chip based on a 9T1C-SRAM cell. The multifunctional in-memory computing circuit includes five NMOS transistors N1-N5, four PMOS transistors P1-P4, and a capacitor C0. P1, P2, N1, and N2 form a latch structure; N3 controls row-direction read / write operations via word line WL and bit line BL; P3, P4, N4, and N5 are used to implement Boolean logic write-back, row-direction read / write, and multiply-accumulate functions. This invention's multifunctional in-memory computing circuit simultaneously supports Boolean logic write-back, signed multiply-accumulate (MAC) operations, and bidirectional row and column read / write, achieving deep integration of logical operations, arithmetic operations, and data movement within the same memory cell.

This utility model belongs to the field of metrology technology, and in particular to a hydropower station level gauge calibration device, including a U-shaped barrel. A side-mounted level gauge and / or a standard level transmitter probe are installed on one side of the barrel. The side-mounted level gauge is connected to the bottom of one side of the U-shaped barrel. The probe of the standard level transmitter is installed inside the bottom of one side of the U-shaped barrel. The level gauge to be measured is installed at the top of the other side of the U-shaped barrel. This device changes the traditional single-barrel calibration to a double-barrel U-shaped structure with connected bottoms. Based on the principle of communicating vessels, the influence of the standard level transmitter probe on the water level can be reduced. The U-shaped barrel automatically balances the liquid levels on both sides through the principle of communicating vessels, and the change in liquid volume is evenly distributed on both sides. This allows the level gauge to be measured to be inserted inside the other side of the U-shaped barrel, thereby increasing measurement accuracy and reducing errors.