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34 results about "Calibration free" patented technology
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Engineering wire harness testing method and system
The invention particularly relates to an engineering wire harness testing method and system, and relates to the technical field of engineering wire harness testing. A measurement and self-calibration module; a test channel health degree real-time monitoring module; and a data processing and diagnosis analysis module. According to the invention, the standard gold wire harness and an automatic self-calibration mechanism solve the problems of long period and low efficiency of traditional manual calibration; the system can automatically trigger self-calibration according to multiple conditions such as time, events and the like, the measurement deviation is captured through multi-dimensional reference measurement, real-time deviation compensation is achieved by means of software closed-loop calibration, meanwhile, fault components can be accurately positioned according to hardware deviation, a maintenance report can be generated, and reference drift caused by environment fluctuation and component aging in a calibration interval is avoided.
Owner:HUNAN JINNUO INTERCONNECT TECHNOLOGY CO LTD
Semiconductor wafer trimming device and method
ActiveCN119480749Areduce pollutionimprove protectionSemiconductor/solid-state device manufacturingWaferMechanical engineering
The invention relates to the technical field of chip manufacturing, and provides a semiconductor wafer trimming device and method.A wafer placed on a pre-calibration workbench is calibrated through a calibration arm assembly, so that the wafer is adjusted to the center of the pre-calibration workbench; and after calibration, the calibration arm assembly is controlled to clamp the edge of the wafer and move the edge of the wafer to the center of the trimming working disc along the Y-axis direction, so that the problem that the wafer trimming equipment is inconvenient to calibrate after being placed due to the use of a hollow working suction disc is solved, and the calibration arm can well protect products with size deviation; according to the calibration device, damage in the calibration process is avoided, the calibration structure is simple, the calibration device only needs to be conveyed to the trimming working disc in the Y-axis direction after calibration, the position deviation in the X-axis direction does not need to be considered, the hundred-micron-level calibration precision is achieved, and the efficiency of the whole calibration process is high; and meanwhile, the edge of the wafer is clamped and carried, so that a traditional vacuum adsorption mode is changed, and pollution caused by dust in a vacuum air path is reduced.
Owner:SHENYANG HEYAN TECH CO LTD
Light-operated calibration tool
The utility model relates to a light-operated calibration tool. The light-operated calibration tool particularly comprises the controllable photoresistor branch circuit, the controllable resistance value of the controllable photoresistor branch circuit can be accurately calculated by means of the known resistor branch circuit and the voltage measurement branch circuit, and then the light-operated calibration tool can be accurately calibrated by means of the characteristics that the resistance value of a photoresistor in the controllable photoresistor branch circuit is controllable when the photoresistor is illuminated and the resistance value of the photoresistor is stable. Any required accurate resistance value is provided for calibration, a standard resistor disc does not need to be replaced frequently, damage to a calibration instrument is avoided, safety is improved, meanwhile, testing of resistance values in different ranges of the to-be-tested equipment can be completed with high flexibility, and finally high-safety, flexible and accurate dynamic calibration of the to-be-tested equipment is achieved.
Owner:JINAN INST OF QUANTUM TECH +1
Strain gauge calibration method, device, equipment, system and storage medium
The invention provides a strain gauge calibration method, device, equipment and system and a storage medium, and relates to the technical field of calibration of measuring instruments. The method comprises the following steps: calculating a difference value between a displacement measurement value measured by a displacement measurement device and a strain target value of a measured strain gauge; performing multi-scale feature extraction and one-dimensional feature extraction on the difference value by using an intelligent control model formed based on a Res2Net block and a Flatten layer, and obtaining a predicted duty ratio and a predicted pulse number according to a multi-scale feature extraction result and a one-dimensional feature extraction result; controlling the servo motor according to the predicted duty ratio and the predicted pulse number so as to update the displacement measurement value; and acquiring a strain output value of the measured strain gauge based on the strain acquisition device when the updated displacement measurement value is equal to the strain target value, and calibrating the measured strain gauge according to the strain output value. According to the invention, the problems of insufficient precision and limited intelligent control degree, such as overshoot and jitter, possibly existing in the calibration process can be effectively avoided.
Owner:HEBEI UNIV OF SCI & TECH
Calibration-free soil dry density in-situ measurement method
The invention discloses a calibration-free soil dry density in-situ measurement method, and belongs to the technical field of soil physical property detection in geotechnical engineering and agricultural engineering. The method comprises the following steps: firstly, acquiring a volume dielectric constant epsilon and an environment temperature of soil in situ, and acquiring a mass water content omega of the soil in situ; secondly, determining physical parameters of the soil, wherein the physical parameters comprise a soil particle dielectric constant, a soil particle relative density and a water dielectric constant determined according to the temperature T; and finally, substituting the volume dielectric constant, the mass water content omega and the physical parameters of the soil into a calculation model constructed on the basis of a soil solid-liquid-gas three-phase mixed medium theory, and solving to obtain the dry density of the soil. According to the method, a calculation model is constructed based on physical characteristics of a soil solid-liquid-gas three-phase mixed medium, parameters which can be directly measured are obtained in situ, and the dry density is directly solved after the parameters are substituted into the model, so that tedious steps of field calibration in a traditional method are avoided, and in-situ, rapid and calibration-free measurement of the dry density of the soil is realized.
Owner:TAIYUAN UNIVERSITY OF TECHNOLOGY
Automatic calibration method and device for detector tester, electronic equipment and medium
PendingCN121995528Aeasy to operateImprove calibration accuracyGeological measurementsGeophoneMeasurement test
The invention provides an automatic calibration method and device for a detector tester, electronic equipment and a medium, and relates to the field of calibration measurement test.The initial moment T0 of a detector for obtaining a damped oscillation signal is obtained through the detector tester, and the method comprises the steps that i-M, i-M + 1 and i-M + 2 are obtained, and sample point signals x [i-M], x [i-M + 1], x [i-M + 2]... x [i] corresponding to the moment i are obtained, and calculating a filtered signal y [i-1] through a formula, when x [i] is greater than G * y [i-1] and G is a multiple of a threshold coefficient, determining a starting moment T0 of a damped oscillation signal, obtaining a damping coefficient, a natural frequency and sensitivity based on T0, and automatically calibrating a detector tester based on the damping coefficient, the natural frequency and the sensitivity. According to the method, the detector tester is automatically calibrated, complicated operation of calibration personnel is avoided, and the calibration precision and the calibration efficiency are improved.
Owner:CHINA NAT PETROLEUM CORP +1
A new air bridge device with calibration-free function
A novel air bridge device with a calibration-free function belongs to the technical field of aircraft power simulation tests. In order to solve the problem that the air bridge is damaged or its relative position with the balance changes during the test, the present invention must re-complete the full-process calibration to obtain the interference force on the balance. The first straight pipe, the second straight pipe, the L-shaped bend pipe and the third straight pipe are connected end to end in sequence, and elastic ventilation devices are provided at the interfaces between the first straight pipe and the second straight pipe, between the second straight pipe and the L-shaped bend pipe, and between the L-shaped bend pipe and the third straight pipe. The upper end of the first straight pipe is connected to the measuring end of the balance, the right end of the third straight pipe is connected to the fixed end of the balance, and the axis of the third straight pipe is perpendicular to the axis of the first straight pipe and the second straight pipe. The novel air bridge device with a calibration-free function of the present invention can quickly obtain the interference force on the balance without performing the overall calibration of the air bridge and the combined calibration with the balance.
Owner:AVIC SHENYANG AERODYNAMICS RES INST
Automatic calibration method and system for high-frequency electrosurgical unit neutral electrode impedance detection
The present invention provides an automatic calibration method and system for neutral electrode impedance detection of a high-frequency electric knife, and relates to the technical field of neutral electrode detection. The method specifically comprises the following steps: S1: obtaining an optimal resonant frequency; S2: when the frequency of an excitation signal source is the optimal resonant frequency, recording a plurality of second voltages by switching a preset impedance connected between two neutral electrodes, and obtaining a voltage-impedance fitting curve by performing interval curve fitting according to a mapping relationship between the preset impedance and the second voltage; S3: when obtaining a measured voltage obtained by performing neutral electrode impedance detection at the optimal resonant frequency, performing impedance calibration on the voltage-impedance fitting curve according to the measured voltage, so as to avoid calibration errors and improve the calibration rate.
Owner:CHENGDU ANJIECHANG MEDICAL TECH CO LTD
Light control calibration device and light control dynamic calibration method
The present application relates to a kind of light control calibration tool and light control dynamic calibration method.The light control calibration tool of the present application particularly includes controllable photoresistor branch, and by means of known resistance branch and voltage measurement branch, the controllable resistance value of controllable photoresistor branch can be accurately calculated, then using the characteristics that the resistance of photoresistor in controllable photoresistor branch is controllable under illumination, and its own resistance is stable, any required accurate resistance value for calibration is provided, without frequently replacing standard resistance sheet, avoid the damage of calibration instrument to improve safety, while also with high flexibility, the test of different range resistance value of the equipment to be measured can be completed, finally realizing the high safety, flexible and accurate dynamic calibration of the equipment to be measured.
Owner:JINAN INST OF QUANTUM TECH +1
Light-operated calibration tool and light-operated dynamic calibration method
The invention relates to a light-operated calibrator and a light-operated dynamic calibration method. The light-operated calibration tool particularly comprises a controllable photoresistor branch, the controllable resistance value of the controllable photoresistor branch can be accurately calculated by means of a known resistor branch and a voltage measurement branch, and then the light-operated calibration tool can be accurately calibrated by means of the characteristics that the resistance value of a photoresistor in the controllable photoresistor branch is controllable when the photoresistor is illuminated and the resistance value of the photoresistor is stable. Any required accurate resistance value is provided for calibration, a standard resistor disc does not need to be replaced frequently, damage to a calibration instrument is avoided, safety is improved, meanwhile, testing of resistance values in different ranges of the to-be-tested equipment can be completed with high flexibility, and finally high-safety, flexible and accurate dynamic calibration of the to-be-tested equipment is achieved.
Owner:JINAN INST OF QUANTUM TECH +1
Calibration free analyte detection device
A calibration free analyte detection device (102, 202, 302) is disclosed. At least one predetermined pair-data set composed of the first parameter value and the second parameter value and the predetermined calibration function based on the time parameter are pre stored in the memory. After a sensor (1022, 2022, 3022) penetrates into the user's skin to obtain the first parameter value, the processor calls the predetermined pair-data set and the predetermined calibration function from the memory and obtains the second parameter value based on the first parameter value by index, the predetermined pair-data set is adjusted through the predetermined calibration function for the next detection and retrieval. The predetermined pair-data set is adjusted with the use time, which reduces the error of the second parameter value and improves the reliability of the analyte detection device (102, 202, 302).
Owner:MEDTRUM TECH
Calibration-free path generation for collaborative robots
PCT designated stageWO2026044558A9Programme-controlled manipulatorProgramme controlAlgorithmPath generation
Embodiments of the present disclosure provide calibration-free path generation for collaborative robots. A method performed by a collaborative robot (10), is provided, the method comprising: receiving (112), from an operator (20), a first input to select one regular shape in a set of regular shapes and a second input corresponding to a set of points, generating (114) a first profile (100) corresponding to the selected one regular shape based on a first number of points in the set of points, determining (116) a score of the generated first profile based on an offset between the first profile and the first number of points, generating (118), in response to the determination that the score is lower than a threshold, a second profile (200) based on a second number of points in the set of points.
Owner:ABB (SCHWEIZ) AG +3
Overload protection adjusting structure of circuit breaker
ActiveCN223757481UProtective switch operating/release mechanismsAdjustment of protective switch conditionsControl theoryCircuit breaker
The utility model discloses an overload protection adjusting structure of a circuit breaker, which comprises an adjusting frame, an adjusting screw and a calibration assembly, the adjusting screw and the calibration assembly are connected and arranged at the top of a circuit breaker body, and two side baffles are arranged on two sides of the top of the circuit breaker body. The protection cover plate is installed between the two side baffles through the buckle structure and covers the calibration assembly and the adjusting screw, so that a protection space for accommodating and covering the calibration assembly is formed at the top of the circuit breaker, and the protection cover plate plays a role in installation and protection of the calibration assembly and the adjusting screw which are installed at the top of the circuit breaker. Therefore, the calibration assembly is prevented from being influenced by collision in the product installation and transportation process, meanwhile, the situation that the adjustment angle of the bimetallic element is influenced due to direct misoperation or mistaken touch of the calibration assembly is avoided, the protection performance is good, and the adjustment operation stability and reliability of the overload protection adjustment structure are guaranteed.
Owner:RUIRUI ELECTRIC (ZHEJIANG) CO LTD
Calibration and verification device and calibration and verification method for oil test box
The invention provides a calibration and verification device for an oil test box, and the device comprises a modular calibration unit which is used for carrying out the on-site calibration of physical characteristic parameters, electrochemical and optical characteristic parameters of the oil test box; and the portable box body group is used for accommodating the modular calibration unit in an integrated mode capable of being transported in a motorized manner and providing physical protection for the modular calibration unit. Through the design of modular calibration combined with the portable box body group, the problem of field maneuvering calibration of the oil test box is solved, and accurate coverage of each module of the oil test box is realized. By adopting the double box bodies which are physically isolated for integrated storage, the portability and maneuverability are remarkably improved, the requirements of field vehicle transportation and manual carrying are perfectly met, and the core premise of army maneuvering metering guarantee is met. Through the classified calibration design of the modularized calibration unit on physical characteristics, electrochemistry and optical parameters, multi-type detection requirements of the oil test box are met, and separation between calibration and an actual scene is avoided.
Owner:CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE ENGINEERING UNIVERSITY
Level gauge zero calibration device with small error
Owner:ZIER CO LTD
Portable dynamic gas calibrator
ActiveCN222514574UHas cooling effectfree from damageMaterial analysisMechanical engineeringCalibration free
Owner:ZHENGZHOU TIANZHIRUN ENERGY TECH CO LTD
Calibration measurement device, calibration measurement method, and electronic device
The application relates to the chip and electronic equipment technical field, in particular to a calibration measurement device, a calibration measurement method and an electronic equipment. The calibration measurement device, the calibration measurement method and the electronic equipment provided by the embodiment of the application can enter the calibration process flow after being started, and whether the electronic equipment meets the calibration measurement condition is detected after detecting that the user performs the calibration measurement operation. When it is detected that the electronic equipment meets the calibration measurement condition, calibration measurement data is acquired according to the second processing signal. Since the calibration process flow is configured, the user does not need to wait for a preset time length, which is beneficial to improving the calibration measurement speed. Meanwhile, since the calibration measurement operation is performed by the user in the calibration process flow, the calibration measurement data collected when the electronic equipment is in a non-flat state such as suspension or inclination can be avoided, and the calibration measurement error can be effectively reduced.
Owner:CHIPSEA TECH SHENZHEN CO LTD
Calibration device for single inside micrometer
The utility model discloses a calibration device for a single inside micrometer in the related technical field of micrometer calibration, which comprises a main support frame and a first support seat, the main support frame is also provided with two second support seats in a group, the second support seats are fixedly provided with a support clamping seat, and the support clamping seat is provided with a plurality of first support seats and a plurality of second support seats. An adjusting screw is installed at the top of the supporting clamping seat through threaded connection, a pressing plate is arranged at the lower end of the adjusting screw, an outer diameter micrometer body is placed on the supporting clamping seat and the first supporting seat, and a fixing end is arranged at one end of the detection position of the outer diameter micrometer body. The first supporting seat and the second supporting seat are arranged on the main supporting frame and used for effectively supporting the outer diameter micrometer body, the supporting clamping seat, the adjusting screw and the pressing plate are arranged on the second supporting seat, the position of the outer diameter micrometer can be effectively fixed, and the outer diameter micrometer body is prevented from moving in the calibration process.
Owner:LUOYANG PENGHONG MACHINERY EQUIPMENT CO LTD
Calibration-free gas detector modular control system
The invention relates to the technical field of instrument detection, in particular to a modular control system for a calibration-free gas detector, which is characterized in that an analog signal of a chemical kit is obtained through a signal processing module; according to a reaction curve section in the characteristic gas concentration section and a preset reaction curve fitting value, combining a real-time reaction curve and a preset reaction curve fitting value, judging whether to calibrate the analog signal or not; the pre-calibration unit calibrates analog signals through a deep learning model according to deviation values of a plurality of analog signal points and corresponding points of a preset reaction curve, and the fine calibration unit obtains a difference value between a fitting value of a characteristic analog signal section reaction curve and the preset reaction curve and a fitting value of a real-time reaction curve and the preset reaction curve. According to the method, the influence of the environmental parameters is comprehensively considered, so that the analog signal can be further calibrated, and the accuracy of the detection result of the gas detector can be improved.
Owner:TIANJIN SNAIG TECHNOLOGY CO LTD
Calibration-free weapon simulation laser transmitter
A calibration-free weapon simulation laser transmitter disclosed by the present invention comprises a machine body, a launching cylinder is inserted in the front end of the machine body, a handheld part is fixedly connected to the lower part of one side, far away from the launching cylinder, of the machine body, and a laser module, a power utilization module, an optical collimation module and a calibration-free module are installed in the launching cylinder. The laser module is used for realizing laser generation and emission processes, the laser module comprises a laser emission part, the power utilization module is in signal connection with a driving circuit and is used for supplying power, the optical collimation module is used for carrying out fine collimation processing on a laser beam, the calibration-free module is in signal connection with a first identification part, and the calibration-free module is in signal connection with a second identification part. And the first identification part is used for acquiring actual parameters of the laser during emission, and performing parameter deviation judgment by comparing the actual parameters with preset related standard parameters, so that the transmitter realizes a manual calibration-free process, and effectively improves the accuracy of laser emission.
Owner:CHANGZHOU HANJI TECHNOLOGY CO LTD
Metering calibration intelligent detection device
InactiveCN120800652AForce/torque/work measurement apparatus calibration/testingPull forceControl engineering
The invention relates to the related technical field of metering calibration, in particular to a metering calibration intelligent detection device which comprises a table plate, a bottom frame and foot pads, a fixing mechanism is arranged on the surface of one side of the table plate, a transverse plate is fixedly connected to the surface of the side, away from the bottom frame, of the table plate, and a groove is formed in the surface of one side of the transverse plate. According to the device, a three-surface fixing structure is formed through opposite clamping of the clamping plates on the two sides and abutting of the end portions of the fixing blocks, displacement of the tension meter is limited in multiple directions, compared with single pull ring fixing, deviation or shaking generated due to the tension effect in the calibration process can be effectively avoided, calibration precision is guaranteed from the source, and the calibration efficiency is improved. The elastic buffer design of the spring enables the fixing block to be adaptively adjusted according to the size of the tension meter, the moving distance of the clamping plates on the two sides can be flexibly changed along with the stroke of the first rack, the device can be compatible with the tension meters of different specifications and sizes, the application range of the device is greatly widened, manual fastening is not needed, manual operation errors are reduced, and the working efficiency is improved. And the fixing efficiency is also improved.
Owner:SHENZHEN WORLD STANDARD MEASUREMENT & TESTING CO LTD
Comparator module based on one-step two-bit architecture, calibration method, ADC and chip
PendingCN121923656AElectric signal transmission systemsAnalogue/digital conversion calibration/testingComputer hardwareA d converter
The invention relates to a comparator module based on a one-step two-bit architecture, a calibration method, an ADC (Analog to Digital Converter) and a chip in the technical field of integrated circuits. The comparator module comprises two comparator groups Group 1 and Group 2 of a one-step two-bit architecture, and the Group 1 and the Group 2 jointly form a ping-pong type structure so as to alternately perform ping-pong operation in a comparison stage and a reset stage. And the comparators in the Group 1 and the Group 2 comprise channel selection switches arranged at the input ends of the comparators. According to the invention, a one-step two-bit successive approximation analog-to-digital converter and a ping-pong successive approximation analog-to-digital converter are fused, and a new comparator calibration mechanism is introduced, so that the calibration process of the comparator can be overlapped with the analog-to-digital conversion process in time, thereby avoiding the situation that the calibration time sequence occupies extra conversion time in the process, and improving the calibration accuracy of the analog-to-digital converter. And the sampling rate of the SAR ADC and the overall conversion speed of the analog-to-digital converter are obviously improved.
Owner:UNIV OF SCI & TECH OF CHINA
Single waveform, continuous squarewave voltammetry for optimal calibration free sensing
PendingEP4479736A4Microbiological testing/measurementMaterial electrochemical variablesSquare waveformWave shape
A method of measuring sensor response for a sample is disclosed. The sample is exposed to an electrochemical aptamer-based (EAB) sensor, where the sensor includes an electrode and one or more aptamers having redox tags. Next, an interrogation is performed by applying an abrupt voltage pulse to the electrode. Two or more data samples are collected at different time values, where each data sample is a redox tag current value. Then at least one measure of the sample is identified using the data samples.
Owner:UNIVERSITY OF CINCINNATI
Calibration-free rapid self-balancing centrifuge rotor
The invention discloses a calibration-free rapid self-balancing centrifugal machine rotor, and particularly relates to the field of centrifugal machine rotors, the calibration-free rapid self-balancing centrifugal machine rotor comprises a centrifugal machine body, a rotor body is arranged in the centrifugal machine body, the rotor body comprises a cross frame, and a connecting shaft is fixedly connected to the center of the bottom of the cross frame; the bottom of the cross is fixedly connected with a group of mounting blocks, and test tubes are arranged at the tops of the mounting blocks. The connecting seat slides downwards due to the weight of the test tube and the internal liquid to drive the connecting seat to move synchronously, so that the L-shaped block is driven to move downwards, and the balancing block is driven by the connecting rod I to slide towards the connecting shaft along the bidirectional guide rail; the moving distance of the balancing block is in direct proportion to the common weight of the test tube and the internal liquid, the heavier the test tube and the liquid is, the more the balancing block moves towards the connecting shaft, and the weight of the test tube is balanced by changing the distance between the balancing block and the connecting shaft. Therefore, the effect of automatic balancing according to the test tube and liquid weight is achieved.
Owner:王芝宇 +1
Aerosol Dilution Method Calibration Device and Calibration Method for Mask Particle Filtration Efficiency
The present invention discloses an aerosol dilution method calibration device and a calibration method for the particulate matter filtration efficiency of a mask. The calibration device includes an upstream pressure sampler, a flow-limiting capillary, a filter, a shunt, a downstream pressure sampler, a digital differential pressure gauge, an upstream pressure sampling port, a downstream pressure sampling port, an air outlet, an inner ring air inlet, a shunt pressure sampling port, and a resistance regulator. By using the present invention, the disassembly and reconnection of the tester pipeline during the calibration process can be avoided, and the interference of the standard device introduced to the working conditions of the tester is minimized; during the calibration process, only the number of capillaries participating in flow limitation needs to be changed for calibration, and the digital differential pressure gauge is used to record the upstream and downstream pressure differences, thus greatly simplifying the calibration process and saving calibration time; the calibration device does not involve high-value standard devices and equipment, greatly saving the calibration cost; the traceability chain of the filtration efficiency calibration process is clear, avoiding the introduction of more factors participating in uncertainty evaluation.
Owner:QINGDAO INST OF METROLOGY TECH
Mining double-channel temperature measurement sensor system with calibration-free function and measurement method
PendingCN119618401AHigh measurement accuracyreduce power consumptionThermometers using electric/magnetic elementsUsing electrical meansHemt circuitsControl theory
The invention relates to a mining double-channel temperature measurement sensor system with a calibration-free function and a measurement method, and belongs to the field of temperature measurement. The system comprises a high-precision time measurement unit, two platinum resistors, an ARM processor and a bus communication circuit. The high-precision time measuring unit is respectively connected with the two platinum resistors and is used for respectively measuring the charging and discharging time of the two platinum resistors and calculating the resistance values of the platinum resistors according to the two charging and discharging time so as to obtain the measured temperature; the ARM processor communicates with the high-precision time measurement unit through the bus communication circuit, and the temperature measured by the platinum resistor is calibrated. The platinum resistor temperature measuring device is high in measuring precision and low in power consumption and cost, has few peripheral circuits, does not need to construct a constant current source circuit or a balanced bridge circuit, an operational amplifier circuit and an analog-to-digital conversion circuit, and can measure the temperatures of the two platinum resistors at the same time without calibration.
Owner:CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
User calibration-free isolation metering chip and metering method
The invention discloses a user calibration-free isolation metering chip and a metering method, and belongs to the technical field of integrated circuits. The metering chip comprises a first sub-chip, a second sub-chip, a substrate and a packaging frame, wherein the first sub-chip is used for rectifying a high-frequency signal into a direct-current voltage; sampling the current and the voltage, and processing a sampling signal to obtain a metering signal; the second sub-chip is used for modulating an external input direct-current voltage into a high-frequency signal and sending the high-frequency signal to the first sub-chip through the substrate; receiving the metering signal sent by the first sub-chip, and processing the metering signal; the substrate is used for isolating and transmitting energy and signals between the first sub-chip and the second sub-chip; the packaging frame is provided with a frame parasitic resistor, and the first sub-chip, the second sub-chip and the substrate are sealed together through customized packaging. According to the metering chip, further calibration of a user at a system level in a traditional scheme can be omitted, isolation of high-voltage and low-voltage side signals and a power supply is achieved through a single chip, the system integration degree is improved, and the cost is reduced.
Owner:HANGZHOU VANGO TECH
A level bubble mounting structure suitable for automated calibration
ActiveCN116242314BNuclear energy generationIncline measurementMechanical engineeringCalibration free
Owner:QINGDAO KAIPU ROAD TOOLS CO LTD
Semiconductor wafer trimming device and method
The invention relates to the field of chip manufacturing technology, and provides a semiconductor wafer trimming device and method. A wafer placed on a pre-calibration workbench is calibrated by a calibration arm assembly to adjust the wafer to the center of the pre-calibration workbench, and after calibration, the calibration arm assembly is controlled to clamp the edge of the wafer and move it to the center of a trimming work disk along the Y-axis direction, thereby solving the problem of inconvenient calibration after placement due to the use of a hollow working suction cup in a wafer trimming device. The calibration arm also well protects products with size deviations to avoid damage during the calibration process, and the calibration structure is simple. After calibration, the wafer only needs to be transferred to the trimming work disk along the Y-axis direction, and the position deviation in the X-direction does not need to be considered, thereby achieving a calibration accuracy of hundreds of microns, and the entire calibration process is highly efficient. At the same time, by clamping and transporting the edge of the wafer, the traditional vacuum adsorption method is changed, and the pollution caused by dust in the vacuum air path is reduced.
Owner:SHENYANG HEYAN TECH CO LTD
Calibration method and device of radio frequency integrated circuit test system
The invention belongs to the field of integrated circuit test system calibration, and particularly discloses a calibration method and device for a radio frequency integrated circuit test system. The core parameters influencing the final test result are locked based on the mapping relation of the test system indexes, and calibration target generalization is avoided. And constructing a test model according to the transmission characteristics of the core parameters to ensure that the model accurately reflects actual circuit behaviors. Then various working conditions are simulated through the model, a corresponding relation between excitation and response is generated and packaged into a parameter equivalent model, and complex physical characteristics are converted into reproducible data standards. And calling the equivalent model in real time in a calibration stage, matching the input with the model library, and reproducing a calibration reference required by each current core parameter. And finally, the test system is calibrated by using the self-generated reference covering all working conditions, so that the problem of system misalignment caused by insufficient metering capacity and narrow calibration coverage is fundamentally solved, and the accuracy and reliability of a test result are remarkably improved.
Owner:709TH RESEARCH INSTITUTE CHINA STATE SHIPBUILDING CORP LTD