27results about How to "Realize online detection" patented technology

A micro inductor online visual detection fixing device. It relates to the field of inductor production equipment. Including the shell, a plurality of shell is placed in sequence on the conveying belt, the top of the conveying belt is equipped with a visual detection mechanism, the middle part of the shell is equipped with a containing cavity, the containing cavity penetrates the shell along the vertical direction; The upper part of the containing cavity is equipped with an upper baffle, the lower part of the containing cavity is equipped with a lower baffle, the lower baffle and the upper baffle are both mesh plates, a gas pump is arranged between the lower baffle and the upper baffle, the gas inlet pipe of the gas pump is located in the containing cavity, and the gas outlet pipe of the gas pump is located outside the containing cavity; The upper baffle is used for placing inductor. The application can improve the inductor detection efficiency and accuracy.

The utility model relates to the technical field of cleanliness detection, in particular to a device for detecting cleanliness on line based on an ultraviolet fluorescence method. The device for online detection of the cleanliness based on the ultraviolet fluorescence method comprises a measurement module; the measurement module comprises a light path module and a calibration module; the calibration module comprises a stepping motor, a standard sample bracket and a position detection sensor; the stepping motor is connected with the standard sample bracket and drives the standard sample bracket to rotate, and the standard sample bracket comprises a plurality of cleanliness sample bracket units and channels arranged among the cleanliness sample bracket units; and the position detection sensor is arranged on the standard sample bracket. The light path module carries out detection by adopting an ultraviolet fluorescence method, has high sensitivity to common pollutants such as oil stains and organic impurities on the metal plate strip, can accurately detect trace pollutants, and improves the precision of cleanliness detection.

This invention provides an online detection method and system for the curing characteristics of epoxy molding compounds, belonging to the field of materials testing and analysis technology. The method includes: during the molding process, acquiring electrical response data of the epoxy molding compound within the mold cavity at at least two different excitation frequencies, and simultaneously acquiring equivalent temperature data of the mold cavity; calculating the complex impedance data corresponding to each excitation frequency based on the electrical response data, constructing a dielectric characteristic quantity to characterize the change in dielectric response of the epoxy molding compound, and performing temperature compensation processing on the dielectric characteristic quantity in conjunction with the equivalent temperature data of the mold cavity; based on the temperature-compensated dielectric characteristic quantity, obtaining online inversion information on the degree of curing change of the epoxy molding compound; based on the degree of curing change information, determining the gel determination time during the curing process of the epoxy molding compound, and outputting online detection results characterizing the curing state of the epoxy molding compound. This invention achieves real-time and stable detection of the curing process and gelation stage of epoxy molding compounds.

The application discloses a kind of rigid PCB metal hole copper-embedded structure visual detection systems, it is related to hole copper-embedded structure detection field, comprising: data acquisition module, for solving light source direction vector and collecting multi-angle image sequence;Specular reflection optimization module, for solving the unit normal vector distribution map of each point of copper-embedded structure surface and relative height map;Topographic feature module, for constructing three-dimensional topographic feature vector;Reflectivity correction module, for dynamically eliminating the overall drift of copper surface reflectivity;Texture feature module, for extracting the texture feature vector of copper-embedded hole edge;Defect identification module, for outputting defect type and corresponding confidence;Detection priority module, for determining the recheck priority and dynamic determination threshold of each copper-embedded structure. Through iterative rejection specular reflection pollution, high-precision three-dimensional reconstruction is realized, and the detection robustness and accuracy of high-reflectivity copper-embedded structure are improved by combining reflectivity self-calibration and multi-modal feature fusion.

The application discloses a device and method for measuring water guide laser water jet on line, the method comprising: obtaining laser data of a laser unit and water jet data of a water jet unit; processing data of a workpiece of a mechanical unit based on the laser data and the water jet data to obtain a data processing result; detecting a voltage value between a metal structure part of the water jet unit and the workpiece of the mechanical unit based on the data processing result to determine a water jet state according to the detected voltage value. The measuring method can be used without adding complex and expensive equipment, and the overall structure does not need to be greatly adjusted, and meanwhile, the measuring method can realize on-line measurement of the depth and further measurement of the processing state of the workpiece.

The invention discloses an on-line visual detection system and a detection method thereof, the on-line visual detection system is loaded on a die cutting production line of a metal material strip, and the on-line visual detection system comprises an image acquisition device and an image processing and analyzing device in communication connection with the image acquisition device; the image acquisition device is mounted on the die cutting production line, is positioned above the metal material strip, and is used for acquiring a 2D image of a product generated after die cutting of the metal material strip; the image processing and analyzing device is in communication connection with the image acquisition device and is used for processing the 2D image acquired by the image acquisition device so as to form a 2.5 D image corresponding to the 2D image; and judging whether the corresponding product has a defect according to the 2.5 D image, identifying the type of the defect when judging that the product has the defect, and generating a defect report. According to the technical scheme, on-line detection of the product formed by die cutting of the metal material strip is achieved.

This application relates to a gas detection device for semiconductor process manufacturing, comprising: a sample collector, a pre-concentration unit, a column oven, and a detector. The sample collector includes a gas collection chamber and a sample input channel, a sample output channel, and a gas purging channel connected to the gas collection chamber. Process gas is input into the gas collection chamber through the sample input channel. The pre-concentration unit is connected to the gas collection chamber through the sample output channel and performs adsorption and desorption treatment on the process gas from the gas collection chamber. A gas chromatography column is installed in the column oven, which is connected to the pre-concentration unit through a first gas transmission channel. The gas chromatography column separates the desorbed process gas. The detector is connected to the column oven through a second gas transmission channel and performs gas composition analysis on the separated process gas. This application enables online detection of process gases in the process chamber used in semiconductor process manufacturing, improving detection efficiency and flexibility.

The application discloses a terahertz time-domain attenuated total reflection method solvent water content detection system and method, relates to the online detection field of solvent water content by means of terahertz time-domain spectroscopy technology, and comprises a terahertz time-domain detection device for emitting a terahertz signal to an ATR sensor module, receiving a terahertz total reflection signal emitted from the ATR sensor module, and transmitting the terahertz total reflection signal to a data processing terminal; a first ATR sensor module for receiving a sample solvent to be detected and performing total reflection on the terahertz signal by means of the sample solvent to be detected; a second ATR sensor module for performing total reflection on the terahertz signal by means of a standard sample solvent; a sample solvent online liquid taking device for controlling the sample solvent to be detected to flow through the first ATR sensor module; and a data processing terminal for calculating the water content of the sample solvent to be detected according to the terahertz total reflection signal. The application can perform online nondestructive detection on the water content of a solvent.

The application discloses a GIS insulating gas health state detection method based on a MEMS optical fiber sensor and belongs to the detection field. First, a MEMS optical fiber sensor is used to obtain the reference value of SF6 in each GIS gas chamber; then, the real-time detection is carried out on the SF6 state parameters in each GIS gas chamber to obtain real-time working values; the real-time working values and the reference values are corresponded one by one respectively, and the difference operation is carried out to realize the "vertical comparison" of each state parameter; the change amount of each SF6 state parameter corresponding to the difference value is obtained; the change amount of the same SF6 state parameter between different GIS devices or between different gas chambers of the same GIS device is compared horizontally to obtain the abnormal device gas chamber or interval. The application can realize the operation health state monitoring of the GIS device by giving the fault early warning for the health state of the GIS insulating gas and judging whether the gas insulation performance and arc extinguishing performance meet the standards or not through the detection of the gas components.

The application discloses a hydrogen purity detection method of a fuel cell system and a control method of the fuel cell system. The fuel cell system comprises an anode subsystem which inputs hydrogen-containing mixed gas into an electric pile through a flow supply device to generate electric current. The method comprises the following steps: when the fuel cell system is running and the exhaust valve is closed, calculating the pure hydrogen consumption M 纯氢气 of the electric pile according to the electric current of the electric pile; 纯氢气 calculating the mixed gas supply amount M 混合气 of the anode loop according to the pressure change of the anode loop and M 混合气 ; and substituting M 混合气 obtained by the above calculation into the gas flow formula of the flow supply device to obtain the hydrogen purity of the mixed gas; the gas flow formula of the flow supply device is M 混合气 =M0*(P in / P0)*sqrt(T0 / T)*sqrt(2 / (2*x+m*(1‑x))); M0 is the hydrogen flow of the flow supply device under standard conditions, P0 and T0 are the inlet pressure and temperature of the flow supply device under standard conditions, P in and T are the inlet pressure and temperature of the flow supply device under current conditions, m is the average molecular weight of impurity gas in the mixed gas, and x is the purity of hydrogen.

The utility model relates to the technical field of machining, and discloses a screw feeder for machine shell closing, which comprises a machine body, a feeding track, a turntable and an optical sensor, the machine body is provided with a material distributing groove and a mounting groove, a groove opening of the material distributing groove is formed upwards, the rotating disc is rotationally arranged at the groove opening of the material distributing groove, a plurality of clamping openings used for clamping screws are formed in the edge of the rotating disc, and a containing cavity used for containing screw rods is formed between the rotating disc and the groove bottom of the material distributing groove; the mounting groove is communicated with the material distributing groove, the optical sensor is mounted in the mounting groove, the sensing end of the optical sensor faces the containing cavity, and the feeding track is connected with any clamping opening. The screw feeder can recognize the length of the screws, and the situation that products are damaged due to the fact that the screws are different in length in the shell closing process is avoided.

The application discloses a kind of acoustic emission state monitoring system and method of wind power generator main bearing, comprising: establishing calibration parameter library including amplitude threshold, count abnormal threshold, coupling state threshold and time coincidence degree threshold under healthy state;Periodically send standard diagnostic pulse to acoustic emission sensor, calculate current coupling state coefficient and determine whether sensor is in effective coupling state;When effective coupling, acoustic emission and ground brush current waveform sequence are synchronously collected and total number of events is extracted;The time coincidence degree of two types of events is calculated;According to the comparison result of coupling state, time coincidence degree and total number of events and corresponding count abnormal threshold, it is classified and determined as sensor maintenance alarm, shaft current electrocorrosion alarm, mechanical spalling alarm, ground brush loop abnormal alarm, composite abnormal alarm or normal according to priority;Output differentiated maintenance instruction.The application effectively distinguishes multiple faults through sensor self-diagnosis and acoustic-electric synchronous identification, and reduces false alarm rate.

The utility model discloses a continuous graphitization on-line measuring system which comprises an on-line graphitization degree detection device and a control system, the on-line graphitization degree detection device comprises a mechanical arm, a gripper, a sampler, a stirrer, a standard sample storage device, a detection container, a balance and a powder diffractometer, the output end of the mechanical arm is respectively connected with and drives the gripper, the sampler, the stirrer and the standard sample storage device to act, and the control system is respectively connected with the mechanical arm, the balance and the powder diffractometer, so that a graphite sample is grabbed by the sampler and then is put into the detection container to be mixed with a standard sample; and transferring to the powder diffractometer to detect the graphitization degree of the graphite sample. According to the utility model, the performance of the continuous graphitized material can be detected on line in real time, so that key indexes of the graphitized material can be timely controlled, the fluctuation of the indexes in a reasonable range is reduced, and the qualified rate of products is improved.

The application discloses a kind of only using ordinary total station fast measurement rotary kiln center line method, comprising S1, preparation tool;S2, establish reference line;S3, using total station to measure reference line to the horizontal distance of outermost edge of wheel belt;S4, calculate rotary kiln cylinder center line horizontal deviation;S5, find the mark point corresponding to each gear wheel belt;S6, using total station to measure the height difference of adjacent mark point;S7, using total station to measure the height difference of each gear mark point and corresponding wheel belt lowest point;S8, measure each gear wheel belt slip amount in situ and convert into wheel belt clearance under hot state;S9, calculate rotary kiln cylinder center line vertical deviation;S10, draw a conclusion.Using the only using ordinary total station fast measurement rotary kiln center line method of the application, measurement method is simple, detection cost is low, can be detected with small amount of tool, overcome the problem that detection equipment is difficult to carry or mail.

A kind of large aperture optical element surface nanoscale defect parallel scanning detection device, comprising: single frequency ultraviolet laser, for generating detection laser beam;Daman beam splitter grating, for splitting the laser beam emitted by single frequency ultraviolet laser, generates the detection sub-beam with uniform intensity distribution;Multi-focal point spatial filtering system, after focusing each detection sub-beam, carries out spatial filtering, filters out high-frequency stray light, forms the detection sub-beam of '' clean '';Scanning detection system is used to scan and record surface defects and its spatial distribution to the optical element to be detected.By controlling the scanning speed of scanning mirror, CCD camera turntable, the fast detection of large aperture optical element surface defect is realized.The present application adopts ultraviolet coherent laser light source and combines parallel beam scanning technology, solves the high resolution fast detection problem of nanoscale defect on the surface of large aperture optical element, and provides technical support for the processing and detection of super-smooth large aperture optical element.

The application belongs to the technical field of measurement, and discloses a bearing deviation detection method and system, a regular polygon light path is arranged around the bearing, a preset interval is used as a deviation threshold reference, when the actual center of the bearing deviates more than the allowed value, the outer peripheral surface will block the light path, causing the light source device or the reflection device to generate an indication signal; the structure design realizes online detection in the running state of the equipment, the bearing state monitoring can be completed without shutdown, and the technical bottleneck that the traditional detection method depends on professional institutions and shutdown operation is solved; the closed loop characteristic of the regular polygon light path ensures full circumferential detection coverage, and the corresponding setting of the interval and the maximum allowed deviation distance establishes an intuitive fault determination standard; thereby, the center deviation of the large mechanical bearing can be monitored in real time, quickly and accurately.

The utility model discloses a bottle bottom detection device which comprises a machine frame connected between two opposite conveying lines, two transmission belts are oppositely arranged on the machine frame, a bottle inlet channel is formed between the two transmission belts in a limiting mode, the two transmission belts are matched to clamp the top of a bottle body and enable the bottom of the bottle body to be suspended, and the bottle bottom detection device further comprises a detection camera. And the detection camera is adapted to shoot the bottle bottom of the bottle body. Bottle bodies on the previous conveying line can enter the bottle feeding channel and are clamped by the two transmission belts to move towards one side of the next conveying line. During the period, the bottle bottom of the bottle body is in a suspended state, and the detection camera can shoot and detect the bottle bottom. According to the utility model, the transmission belt is arranged between the two conveying lines so as to clamp and transfer the bottle body, the bottle bottom is also in a suspended state so as to facilitate the shooting of a detection camera, and after the detection is completed, the bottle body can enter the next conveying line seamlessly and is conveyed to the next working procedure. In conclusion, online detection of the bottle bottoms is achieved, and the production efficiency and quality of the bottle bodies are improved.

The utility model discloses a mobile reverse osmosis on-line automatic detection instrument. An installation plate is installed on the installation board. A control center is arranged inside the shell. A camera is connected to the front end of the shell. A motor is installed on the installation board. The output shaft of the motor is connected to a propeller. A protective mesh cover is arranged outside the motor and the propeller. The protective mesh cover is connected to the installation board. A conductivity electrode is also arranged inside the shell. The electrode plate of the conductivity electrode extends outside the shell. The control center includes a power supply, a locator, a processor and a wireless communication module. The power supply supplies power to the conductivity electrode, the camera, the motor, the processor, the locator and the wireless communication module. The processor is connected to a remote control terminal through the wireless communication module. The utility model is small in volume, has little influence on the fresh water flow pattern during the movement in the fresh water channel, can detect during the normal operation of the reverse osmosis device, and can reflect the real situation during operation; during detection, a single person can operate, without manual sampling and measurement, without wasting water resources, and saving manpower and material resources.

A dual-ear protector active noise cancellation method, comprising: collecting an external environment noise reference signal output by a feedforward microphone of an ear cover and an earplug external noise reference signal output by a feedforward reference microphone of an earplug; calculating an actual acoustic transfer function between the feedforward microphone of the ear cover and the feedforward microphone of the earplug according to the external environment noise reference signal and the earplug external noise reference signal; confirming that the actual acoustic transfer function and a current reference acoustic transfer function do not match; controlling a loudspeaker of the ear cover to play a test audio signal and obtaining a test response signal collected by the feedforward microphone of the earplug; determining a target transfer path model according to the test audio signal and the test response signal; and updating an active noise cancellation filter coefficient of the ear cover and an active noise cancellation filter coefficient of the earplug according to the target transfer path model.

The utility model relates to the technical field of steel rail flaw detection, in particular to an in-service steel rail tread eddy current flaw detection device which comprises a detection frame body, a floating position correcting frame is connected to the detection frame body and comprises a horizontal self-adaption assembly and a vertical self-adaption assembly, and a plurality of eddy current flaw detection heads are arranged below the floating position correcting frame. A cross detection area is formed between every two adjacent eddy current flaw detection heads, so that the total detection area covers the tread of the steel rail; the detection frame body is also provided with a processing host, and the processing host is used for receiving and processing the detection data. By adjusting and improving the structure of the flaw detection device, the floating position correcting frame is always attached to the steel rail for flaw detection, self-adaptive matching is realized, the flaw detection distance of the eddy current flaw detection head is ensured to be stable, flaw detection data acquired by the eddy current probe is more accurate, online detection is realized along the steel rail, and the flaw detection efficiency is improved.

The invention discloses a memory, and a chromaticity determination method and device for a paraffin product. The method comprises the following steps: determining absorbance of three preset wavelengths by using a spectrophotometer so as to obtain tristimulus values of standard colorimetric solutions; according to the tristimulus value of each standard colorimetric solution, respectively calculating the chromatic aberration value of each standard colorimetric solution; generating a prediction model by taking the chromaticity and the chromatic aberration value of each standard colorimetric solution as modeling data; the prediction model takes the color difference value as input and is used for predicting a corresponding chromatic value; obtaining a tristimulus value of the paraffin product to be measured by using a spectrophotometer; calculating a chromatic aberration value of the paraffin product to be measured according to the tristimulus value of the paraffin product to be measured; generating a chromatic value of the to-be-measured paraffin product through the prediction model by taking the chromatic value of the to-be-measured paraffin product as input; according to the invention, manual workload and manual subjective errors can be greatly reduced, so that the efficiency and accuracy of paraffin chromaticity detection are improved.

The utility model relates to a solar cell piece defect detection device, especially a solar cell piece defect detection device based on EL and PL, include: transmission subassembly is used for conveying cell piece, camera subassembly includes the K line array camera for gathering EL image and the K line array camera for gathering PL image, locates transmission subassembly's top, laser assembly is used for providing the light source for K line array camera, LED light source subassembly is used for providing the light source for K line array camera, light shield board subassembly locates transmission subassembly's top, and is located between laser assembly and LED light source subassembly, and industrial computer is connected with transmission subassembly, K line array camera, K line array camera, laser assembly and LED light source subassembly respectively.A kind of solar cell piece defect detection device based on EL and PL can realize EL detection and PL detection on the same device, greatly reduce the investment cost of equipment, and only need once detection to complete EL detection and PL detection, and detection efficiency is high.

The invention provides an automatic detection device and method for an optical fiber fusion point series. The device comprises a light source which emits detection light to a to-be-detected optical fiber through a light source optical fiber; the optical fiber beam combiner with direction selectivity is used for carrying out beam combination output on backward reflected light from the optical fiber to be detected; the detector is optically connected with the optical fiber beam combiner and is used for receiving the backward reflected light and converting the backward reflected light into an electric signal; and the processor is electrically connected with the detector and is used for processing the electric signal and judging the state of the fusion point in each sub-optical fiber to be detected based on a preset state judgment model. According to the method, the light intensity of retroreflected light of Rayleigh scattering in the optical fiber and Fresnel reflection at the fusion point is utilized, and after a detector detects the retroreflected light, the state of the fusion point of the optical fiber is analyzed by utilizing a feature extraction algorithm. According to the invention, a plurality of melting points of a high-power optical fiber series can be detected, and the state of the melting points of the high-power optical fibers can be checked before formal work; during formal work, the optical fiber welding point is monitored.

The invention discloses an online detection method and device for a contactor, and the method comprises the steps: transmitting a closing instruction to the contactor when the contactor is determined to work normally; determining the current closing time of the contactor according to the resistance change condition between the input end and the output end of the contactor; sending a disconnection instruction to the contactor; determining the current disconnection time of the contactor according to the resistance change condition between the input end and the output end of the contactor; and determining the current use frequency of the contactor according to the current closing time and the current opening time of the contactor and a preset corresponding relation. The current closing time and the current opening time of the contactor are detected on line, and then the corresponding current use frequency is determined according to the current closing time and the current opening time, so that the service life of the contactor is detected on line, and the contactor is replaced in time when the service life of the contactor reaches the upper limit. And safe and stable operation of a power supply loop where the contactor is located is ensured.

The utility model discloses an on-line self-balancing device and a wafer drying machine, the on-line self-balancing device comprises a rack, a bearing assembly, a rotating shaft, a mounting plate, a driving assembly and a self-balancing assembly, the rotating shaft is mounted on the rack, the fixed end of the driving assembly is mounted on the rack, the driving assembly is connected with the rotating shaft, and the driving assembly is configured to drive the rotating shaft to rotate along the axis of the rotating shaft; the bearing component is horizontally mounted at the top of the rotating shaft; the mounting plate is mounted at the bottom of the rotating shaft, the self-balancing assembly comprises a balancing part, a control part and a detection part, the balancing part is mounted on the bottom surface of the mounting plate, and the detection part is configured to detect balance information of the rotating shaft in the rotating process and send the detected balance information to the control part; the control portion is configured to control the balance portion to perform balance compensation on the rotating shaft according to the received balance information. According to the on-line self-balancing device, through cooperation of the rack, the bearing assembly, the rotating shaft, the mounting plate, the driving assembly and the self-balancing assembly, automatic balancing during on-line rotation of the rotating shaft is achieved, and the working efficiency is improved.

The invention discloses a spinning frame for spinning production capable of avoiding yarn winding and knotting, and belongs to the technical field of spinning equipment.The spinning frame comprises a yarn leading mechanism, a yarn guiding mechanism, a knotting detection mechanism, a carding mechanism and a cleaning mechanism which are sequentially arranged; the lead mechanism comprises a support frame which is fixedly connected to the mounting platform; according to the yarn knotting detection device, the number of the running rollers is two, the two running rollers are rotationally connected to the supporting frame, online detection of yarn knotting is achieved, the knotted part can be cut off and collected in a unified mode in time, meanwhile, the broken end part of the yarn is spliced, and the winding quality of the yarn and normal operation of yarn winding work are guaranteed. The yarn guiding mechanism and the knotting detection mechanism are arranged to slide up and down along the machine frame, the tensioning degree of the yarn can be adjusted, and the situation that the yarn is wound together due to looseness of multiple pieces of yarn is avoided.

This invention discloses a method and apparatus for measuring the speed and head warpage of a steel billet. The method includes: transmitting a symmetrical triangular linear frequency modulated continuous wave signal to the steel billet to be tested, wherein the symmetrical triangular linear frequency modulated continuous wave, as the local oscillator signal, is generated by a detection device installed at a preset position at the mill exit; after the linear frequency modulated continuous wave is emitted to the steel billet to be tested, an echo signal is generated; the local oscillator signal and the echo signal are mixed to obtain a difference frequency signal; the difference frequency signal is subjected to spectral analysis to measure the target distance of the steel billet to be tested; the difference between two target distances measured in the direction of travel of the steel billet to be tested is calculated, and it is determined whether the difference is within a first preset threshold range; if the difference is within the first preset threshold range, it is determined that the steel billet to be tested has no warpage. This method of the present invention uses linear frequency modulated continuous wave signal for distance and speed measurement, which is not easily affected by flowing water on the steel plate surface and water mist in the optical path, has strong anti-interference ability, and improves the accuracy and stability of steel plate warpage measurement.