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85 results about "Stroboscope" patented technology

A stroboscope also known as a strobe, is an instrument used to make a cyclically moving object appear to be slow-moving, or stationary. It consists of either a rotating disk with slots or holes or a lamp such as a flashtube which produces brief repetitive flashes of light. Usually the rate of the stroboscope is adjustable to different frequencies. When a rotating or vibrating object is observed with the stroboscope at its vibration frequency (or a submultiple of it), it appears stationary. Thus stroboscopes are also used to measure frequency.

Yarn weak twist and hairiness intelligent detection system based on visual stroboscopic synchronization

The invention discloses a yarn weak twist and hairiness intelligent detection system based on visual stroboscopic synchronization, particularly relates to the field of quality control in the textile industry, is used for solving the problem of accurate detection of weak twist and hairiness defects in the yarn production process, and dynamically adjusts the flash frequency of a stroboscope according to the real-time speed and acceleration data of yarn, so that the detection accuracy is improved. The light source and the yarn are ensured to move synchronously, and a high-resolution image is obtained. In combination with yarn motion spectrum analysis and image quality evaluation, a complexity score and a matching degree score are generated and are used for dynamically regulating and controlling image noise reduction and edge detection parameters, and characteristic extraction requirements under different yarn motion conditions are met. The weak twist characteristic and the hairiness texture of the yarn are accurately extracted through a multi-scale edge detection and wavelet transform algorithm, a twist distribution model is constructed, the boundary range is corrected in combination with hairiness distribution data, characteristic interference is reduced, and the detection precision and reliability are improved.
Owner:JIANGSU GRORUI ENERGY SAVING TECH CO LTD

Strip steel surface quality inspection equipment and method

The invention relates to strip steel surface quality inspection equipment which is characterized in that meter inspection instruments are provided with measuring heads, the measuring heads are connected with the corresponding meter inspection instruments, a unit comprises a first steering roller, a second steering roller, a third steering roller and a fourth steering roller, and strip steel enters a second quality inspection table and a fourth steering roller after passing through the first steering roller, a first quality inspection table, a second steering roller and a third steering roller. A first measuring head and a first stroboscope are sequentially arranged on the upper surface of the strip steel driven by the first turning roller and the second turning roller, a second stroboscope and a second measuring head are sequentially arranged on the lower surface of the strip steel driven by the first turning roller and the second turning roller, and an illuminating lamp set is arranged above the second quality inspection table. The device has the advantages that manual visual inspection is not needed, picture information is uploaded to a display screen by adopting the upper surface meter detector measuring head and the lower surface meter detector measuring head, and quality inspection personnel can observe pictures at any time conveniently; the vertical quality inspection table and the horizontal quality inspection table are adopted, and non-stop rapid quality inspection of the upper / lower surface of the strip steel is achieved.
Owner:BENGANG STEEL PLATES CO LTD +1

Rail train wheel surface scratch detection method and system

The invention provides a rail train wheel surface scratch detection method and system, and the method comprises the steps: obtaining a wheel surface image: obtaining a wheel surface image, collected by a visual camera under the irradiation of a stroboscope, of a wheel surface under high-speed movement; an abnormal feature mapping step: performing change detection on the wheel surface image and the template image at different angles to obtain an abnormal feature group, positioning and splicing the abnormal feature group to obtain an abnormal feature block, and mapping the abnormal feature block in the front image of the wheel surface as a wheel surface abnormal image; a feature depth analysis step: obtaining depth information of a plurality of item points in the abnormal feature block through a depth analysis strategy according to the abnormal feature block, the plurality of item points including edge item points and non-edge item points of the abnormal feature block, and comparing the depth information of the edge item points with the depth information of the non-edge item points; an exception screening and matching step: outputting a scratch type or other types according to a comparison result; the method has the advantages that the abrasion of the wheel side face or the shaft surface can be accurately positioned, and the abrasion is accurately judged to be a scratch type.
Owner:ZHEJIANG ZHONGSHU LASER EQUIP CO LTD

Waterproof stroboscope lamp

The waterproof stroboscope lamp comprises a first machine case and a second machine case which are connected, the first machine case comprises a first machine shell, a first end cover and a second end cover, the first end cover and the second end cover are arranged at the two ends of the first machine shell respectively, first sealing structures are arranged between the first end cover and the first machine shell and between the second end cover and the first machine shell, and a partition plate is arranged in the first machine shell. The partition plate is provided with a first through hole, the first through hole is connected with a first wiring connector, and a second sealing structure is arranged between the first wiring connector and the first through hole; the second case comprises a second case and a top cover covering the second case, a third sealing structure is arranged between the top cover and the second case, a second through hole is formed in the top cover, the second through hole is connected with a second wiring connector, a fourth sealing structure is arranged between the second wiring connector and the second through hole, and the fourth sealing structure is connected with the second wiring connector. The first wiring connector communicates with the second wiring connector through a hose, and the lamp panel is electrically connected with the power module. The problem that a traditional stroboscope lamp is poor in waterproof performance is solved.
Owner:GUANGZHOU SHENGHE ELECTRONICS CO LTD

A self-service ticket taking machine

The utility model discloses a kind of self-service single taking machines, including machine body, the machine body bottom end is equipped with universal wheel, machine body upper side is provided with reading assembly, reading assembly includes identity card reader and medical insurance card reader, the outside of identity card reader and medical insurance card reader is equipped with warning assembly. By setting warning assembly, when the user places identity card or medical insurance card on reading assembly in use process, the light detected by light sensor in warning assembly is blocked by card at this time, illumination intensity will change, light sensor will rapidly perceive change and detect feedback to control module in machine body, at this time, stroboscope in mounting groove is lit, the light generated by it is projected on to outside through light transmission plate and prompts user, prevent user from forgetting identity card or medical insurance card on machine body, avoid unnecessary loss.
Owner:CHANGSHA LINGNUO TECHNOLOGY CO LTD

Wireless synchronous stroboscope

The utility model relates to the related technical field of stroboscopes, in particular to a wireless synchronous stroboscope which comprises a synchronous stroboscope body, the bottom end of the synchronous stroboscope body is provided with a synchronous stroboscope holding rod, one end of the synchronous stroboscope body is provided with a charging dustproof assembly, and the other end of the synchronous stroboscope body is provided with a wireless communication module. Fixing assemblies are arranged on the two sides of the synchronous stroboscope holding rod. Through the arrangement of the charging dustproof assembly, the embedding of the dustproof cover and the charging hole, the tight fitting of the sealing rubber strip and the dual dustproof design of the blocking frame, dust can be more effectively prevented from entering the charging port, and through the connection of the elastic band, the dustproof cover can be completely taken down during charging, so that the interior of the charging hole can be checked and cleaned regularly, and the charging efficiency is improved. The fixing assembly adopts a mode that a bandage crosswise penetrates through a square-shaped buckle and is bonded through a bonding layer, the tightness can be adjusted according to the size of a palm and the holding comfort degree, and the device is effectively prevented from falling off in cooperation with an elastic rubber strip on a baffle.
Owner:WUJIANG QIANGYU TEXTILE APPLIANCE CO. LTD.

LED strobe light

1. The name of the design product: LED strobe light (stroboscope). 2. The use of the design product: The design product is used for warning lighting. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective drawing.
Owner:广州金纽达灯饰有限公司

Anti-collision tail plate with early warning structure for electric vehicle

The utility model relates to the technical field of electric vehicle accessories, and discloses an anti-collision tail plate with an early warning structure for an electric vehicle, which comprises a tail plate main body, an LED (light-emitting diode) stroboscope lamp is fixedly mounted on the end surface of one side, far away from wheels of the electric vehicle, of the tail plate main body, a U-shaped mounting frame is arranged on one side of the LED stroboscope lamp, and sound-light alarm lamps are fixedly arranged at two ends of the U-shaped mounting frame; a fixing block is fixedly arranged on the end face of the side, close to an electric vehicle wheel, of the tailboard body, a connecting support is rotationally connected to the outer side of the fixing block, a movable connecting unit is arranged at the end, away from the fixing block, of the connecting support, and a fixing unit is arranged on one side of the movable connecting unit. According to the anti-collision tail plate with the early warning structure for the electric vehicle, the tail plate body is hinged to the tail position of the electric vehicle, when the tail plate body is subjected to external force, the first conductive block makes contact with the second conductive block, an early warning circuit is connected, early warning is carried out through the LED stroboscope lamp and the sound-light alarm lamp, and anti-collision early warning can be well carried out.
Owner:JIANGSU HERO AUTOMOBILE CO LTD

Streak light

ActiveCN309697521SStage lightingStroboscope
1. The name of the design product: long strip stroboscope. 2. The use of the design product: for stage lighting. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1. 5. The top view has been embodied in the use state 1; the bottom view has been embodied in the perspective view 2, and the top view and the bottom view are omitted.
Owner:GUANGZHOU QINGLIANG STAGE LIGHTING EQUIPMENT CO LTD

Strobe spin art

An apparatus for making spin art is provided. In the apparatus, a spinnable platen is conformed for removably supporting a substrate, a stroboscope is arranged for flash illumination of a substrate mounted on the spinnable platen, and at least one laser pointer is cooperatively configured with a pigment depositor such that in operation, the pointer illuminates the substrate portion that is user-selected for deposition of pigment material by the pigment depositor.
Owner:HOGAN JOHN DENNIS

Stroboscope for loom

This stroboscope for a loom (10) comprises: a light emitter (11); and a trigger control unit (13a) that outputs to the light emitter (11) a trigger signal for causing light emission by the light emitter (11) when the rotation angle of a spindle (101) of the loom (100) rotates by a delay angle from a reference angle. The trigger control unit (13a) changes the delay angle by a prescribed variation width within a prescribed variation range.
Owner:TOYOTA INDUSTRIES CORP

Moving object signal synchronization method, device, equipment, medium and product

PendingCN119545153AImprove signal synchronization efficiencyReduce signal synchronization costStroboscopeSignal processing
The invention discloses a moving object signal synchronization method, device and equipment, a medium and a product, and relates to the field of signal processing, and the method comprises the steps: obtaining two adjacent pulse signals outputted when a photoelectric reflection type sensor collects a moving object position signal; determining an operation cycle of the moving object based on the two adjacent pulse signals; determining a delay period based on the operation period; determining a delay time based on the delay period; and acquiring a pulse signal at the current moment, taking the pulse signal at the current moment as a trigger signal of the camera, and on the basis of the trigger signal, controlling the stroboscope to delay triggering according to the delay time, and shooting to obtain a moving object image so as to realize signal synchronization of the moving object. According to the method, the signal synchronization cost can be reduced while the signal synchronization efficiency of the moving object can be improved, and the problem that clear images are difficult to capture in the shooting process of the moving object is solved.
Owner:BEIHANG UNIV +1

illuminometer

ActiveCN309620759SIlluminanceStroboscope
1. The name of the design product: luxmeter. 2. The use of the design product: the design product is used for testing illumination value, ultraviolet radiation intensity, lamp stroboscope, lamp spectrum, sun protection rating, UVI ultraviolet level. 3. The design points of the design product: in shape. 4. The picture or photo that can best show the design points: perspective view 1.
Owner:GUIZHOU JIALEDAO ELECTRONIC TECHNOLOGY CO LTD

Novel head-mounted myopia prevention system

The invention relates to the technical field of myopia prevention, and discloses a novel head-mounted myopia prevention system, which comprises an ambient light data acquisition module used for acquiring ambient light data at a set frequency; and the data processing unit is used for performing mathematical transformation on the ambient light data acquired in a period of time, comparing a transformation result with a preset threshold value, and obtaining whether the ambient light source stroboscopes or not and whether the electronic product is used or not according to a comparison result. Compared with an existing method for detecting flicker of an electronic screen, the intelligent glasses have the advantages that excessive sensors do not need to be arranged, on the basis of not increasing hardware cost, the functions of the existing intelligent glasses for preventing and treating myopia are expanded, whether electronic products are used or not is judged by detecting the stroboscopic frequency of ambient light, and the economical efficiency is very good.
Owner:NANJING WEIPAI TRADING CO LTD

Light-emitting diode (LED) long-strip waterproof pixel strobe lamp

A strobe lamp body comprises a protective shell, a slot is formed in one side of the outer wall of the protective shell, balls are movably connected to the positions, located on the two sides of the slot, of the inner wall of the protective shell, one ends of the outer walls of the two balls penetrate out of the protective shell and are located in the slot, and the other ends of the outer walls of the two balls penetrate out of the protective shell and are located in the slot. The positions, close to the balls, of the inner wall of the protective shell are slidably connected with push plates, the two push plates are symmetrically arranged on the two sides of the inserting groove, the push plates are located on the slope sides and make movable contact with the balls, springs are fixedly connected to one ends of the bottoms of the two push plates, and the other ends of the springs are fixedly connected with the inner wall of the protective shell; the other ends of the bottom faces of the two push plates are jointly and fixedly connected with a lifting piece, one end of the side wall of the lifting piece penetrates out of the protective shell, an insertion block between the two stroboscope lamps is inserted into an insertion groove, balls in the insertion groove automatically abut against the interiors of clamping grooves in the side edges of the insertion block, and the connection strength is guaranteed.
Owner:FOSHAN XINWANMEI INTELLIGENT TECHNOLOGY CO LTD

Novel splicing device for stroboscope lamp

The utility model relates to the technical field of stroboscope lamp accessory devices, in particular to a novel splicing device for a stroboscope lamp, which can be quickly assembled and disassembled by a worker, so that the working efficiency and effect of the stroboscope lamp are improved, and the practicability is enhanced. Comprising a stroboscope lamp body and further comprises two splicing mechanisms, two mounting plates, two pressing plates, two U-shaped plates, four clamping plates, multiple first clamping blocks, a connecting assembly and an adjusting assembly, the two ends of the top of the stroboscope lamp body are connected with the bottoms of the mounting plates correspondingly, the two pressing plates are each provided with a preformed hole, and the two mounting plates are slidably sleeved with the preformed holes of the pressing plates correspondingly; the bottoms of the two pressing plates are tightly attached to the top of the stroboscope lamp body, the tops of the two pressing plates are connected with the bottoms of the two clamping plates through adjusting assemblies, two first clamping blocks are evenly arranged at one ends of the four clamping plates respectively, and two clamping grooves are formed in the two ends of the two mounting plates respectively.
Owner:GUANGDONG LTECH LIGHTING TECH CO LTD

Elevator speed governor testing method and device based on infrared stroboflash and phase difference speed measurement

The invention relates to the technical field of elevator safety detection, and provides an elevator speed governor detection method and device based on infrared stroboscopic and phase difference speed measurement, and the method comprises the steps: pasting high-reflection infrared mark points at the edge of a speed governor rope wheel at equal intervals, and calculating the initial emission frequency of an infrared stroboscope according to the rated rotation speed; an infrared stroboscope is used for pulse type infrared light irradiation, and a high-precision camera is used for collecting a rope wheel dynamic image sequence; graying processing is carried out on the image sequence, the positions of the mark points in adjacent frames are identified by adopting a dynamic weighting template matching algorithm, and pixel coordinates are obtained; pixel displacement is converted into actual physical arc length displacement through a dynamic mapping model, and a phase difference is calculated; the real-time rotating speed of the speed limiter is calculated according to the phase difference and converted into the real-time linear speed; and the real-time linear speed is compared with a preset speed threshold value for judgment, and a speed limiter action state judgment result is obtained. According to the invention, the detection precision and reliability of the elevator speed governor are improved, and the strict requirements of elevator safety standards are met.
Owner:LISHUI SPECIAL EQUIP TESTING INST

Water outlet device

The utility model relates to the field of water outlet devices, in particular to a water outlet device. Comprising a water outlet passage, a water outlet is formed in the water outlet passage, a plurality of stroboscopic lamps are evenly arranged around the water outlet in the circumferential direction, an electric passage connected with the stroboscopic lamps is arranged, the stroboscopic lamps are connected and controlled with a light source control system, and after water flows out of the water outlet, the light source control system controls the stroboscopic lamps to be started; the light module is provided with a power supply chip and a control chip, the stroboscopic lamps are arranged on the light module, the light module is provided with at least three stroboscopic lamps, the water flow anti-gravity visual effect is achieved through the falling water flow scattered by the stroboscopic lamps when water is received, and the man-machine interaction is enhanced.
Owner:ZHEJIANG DIHENG IND CO LTD

Satellite synchronous flashing lamp

The utility model relates to the technical field of strobe lamps, and discloses a satellite synchronous strobe lamp which comprises a protection box, the outer side of the protection box is connected with a strobe lamp panel, the top of the protection box is provided with a solar panel, and the solar panel is connected with an angle adjusting assembly. The angle adjusting assembly comprises an electric telescopic rod, a connecting rod is arranged at the bottom of the electric telescopic rod, the electric telescopic rod is rotationally connected with the connecting rod, the end, away from the electric telescopic rod, of the connecting rod is rotationally connected with the solar panel, and the output end of the electric telescopic rod is rotationally connected with the solar panel. The bottom of the connecting rod is connected with the rotating shaft, the bottom of the rotating shaft extends into the protection box and is connected with the direction adjusting assembly, and the rotating shaft is rotationally connected with the protection box. According to the utility model, the solar panel is adjusted, so that the stroboscope lamp can be fully irradiated by the sun at different positions, the conversion rate of the solar panel is greatly improved, and the normal operation of the stroboscope lamp is ensured.
Owner:GANSU WEISIAN ELECTRONIC TECH CO LTD

System for establishing pronunciation disorder vocal cord vibration model

The invention belongs to the technical field of pronunciation disorder vocal cord vibration models, and particularly relates to a pronunciation disorder vocal cord vibration model establishing system which comprises an image acquisition module used for acquiring vocal cord vibration images by using a high-definition electronic stroboscopic laryngoscope; the image preprocessing module is used for performing enhancement, noise reduction and segmentation processing on the image acquired by the image acquisition module; and the vocal cord vibration feature extraction module is used for extracting vocal cord features according to the image processed by the image preprocessing module. The vocal cord region can be accurately identified and segmented by using a semantic segmentation algorithm based on deep learning, interference of complex backgrounds such as surrounding tissues and secretions can be effectively eliminated, the vocal cord tissues and the backgrounds can be accurately distinguished even if mucus adheres to the periphery of the vocal cord, accurate image data can be provided for subsequent feature extraction, and the vocal cord recognition accuracy is improved. And the reliability and accuracy of feature extraction are improved.
Owner:THE SECOND HOSPITAL OF TIANJIN MEDICAL UNIV

Alarm device

The utility model provides an alarm device which comprises a light emitting module, the light emitting module is provided with a shell, a control panel, a stroboscope lamp and a prompt lamp set, the shell is provided with a containing cavity, the control panel is arranged in the containing cavity, the control panel is provided with a receiving module, an alarm module and an information processing module, the alarm module is electrically connected with the stroboscope lamp, and the information processing module is electrically connected with the stroboscope lamp. The alarm module can send out alarm signals through the stroboscope lamp, the receiving module is used for receiving different types of alarm signals, the information processing module has multiple prompt modes, the information processing module is electrically connected with the prompt lamp set, and the information processing module controls the prompt lamp set to work according to the different prompt modes. By adopting the structure, the problems of single alarm signal and insufficient applicability to special users in the prior art can be solved.
Owner:ZHEJIANG HUAXIAO TECH CO LTD

Strip steel surface quality inspection equipment

The utility model relates to strip steel surface quality inspection equipment, each meter inspection instrument is provided with a measuring head, the measuring head is connected with the corresponding meter inspection instrument, a unit comprises a turning roll I, a turning roll II, a turning roll III and a turning roll IV, and strip steel enters a quality inspection table II and a quality inspection table IV through the turning roll I, a quality inspection table I, a quality inspection table II and a quality inspection table III. A first measuring head and a first stroboscope are sequentially arranged on the upper surface of the strip steel driven by the first turning roller and the second turning roller, a second stroboscope and a second measuring head are sequentially arranged on the lower surface of the strip steel driven by the first turning roller and the second turning roller, and an illuminating lamp set is arranged above the second quality inspection table. The utility model has the advantages that: manual visual inspection is not needed, and picture information is uploaded to a display screen by adopting the upper surface meter detector measuring head and the lower surface meter detector measuring head, so that quality inspection personnel can observe pictures at any time conveniently; the vertical quality inspection table and the horizontal quality inspection table are adopted, and non-stop rapid quality inspection of the upper / lower surface of the strip steel is achieved.
Owner:BENGANG STEEL PLATES CO LTD +1

Fuse monitoring system for exciter

The utility model discloses a fuse monitoring system for an exciter, which comprises an exciter body, a stroboscope host, a camera module and an end cover, the stroboscope host and the camera module are arranged on one side of the exciter body, the stroboscope host is provided with a stroboscope lamp module, and the end cover is arranged on the stroboscope host. The exciter body is installed on the stroboscope host, the stroboscope lamp module is used for interfering light frequency in the exciter body with strong light so that a high-speed rotation state can be presented in a low-speed state, the camera module is installed on the stroboscope host, and the camera module is used for flexibly adjusting and adapting to the stroboscope lamp module and performing projection observation on the low-speed state. Synchronous strong light interference emitted by the stroboscope lamp module is realized, so that a fuse which rotates at a high speed in the exciter is in a low-speed or static state, and the observation precision is remarkably improved; the end cover isolates external light interference and cooperates with the rubber pad for sealing and damping, so that clear and stable images of the camera module are guaranteed, and the camera module has certain use value and popularization value.
Owner:ZHEJIANG PANHAI TECH CO LTD

Acousto-optic response type bird repelling device applied to power transmission line

The invention relates to an acousto-optic response type bird repelling device applied to a power transmission line, and relates to the technical field of electric power auxiliary instruments, the acousto-optic response type bird repelling device comprises a box body, a sensor and a buzzer are arranged on the side face of the box body, stroboscope lamps are arranged at the corners of the peripheral side of the box body, and the sensor detects that birds approach to start the buzzer and the stroboscope lamps to achieve acousto-optic response bird repelling; a transverse stretcher is arranged below the box body. The bottom of the transverse stretcher is provided with an insulator used for hanging a power transmission line. A bird repelling agent assembly is arranged in the box body and comprises a storage bin used for storing bird repelling agent particles and a discharging pipe fixed to the bottom of the storage bin, and a movable seat is fixedly arranged at the bottom of the box body. According to the device, bird repelling and transverse stretcher cleaning are integrated, in the advancing process, cleaning of the top of the transverse stretcher and accurate discharging and firm bonding of bird repelling agent particles are synchronously achieved, the bird repelling agent particles are firmly bonded to the surface of the transverse stretcher at regular intervals, and therefore the bird repelling effect is continuously achieved.
Owner:NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA

Light emitting structure of stroboscope

The utility model relates to the technical field of stroboscopes, and discloses a light emitting structure of a stroboscope, which comprises a stroboscopic light source, a condenser, a light equalizing plate and a reflector are sequentially arranged according to the conduction sequence of the light of the stroboscopic light source, the condenser is used for guiding the light to the light equalizing plate, the light equalizing plate is used for refracting the light to form parallel light, and the reflector is used for reflecting the light to the stroboscopic light source. Through the arrangement of the stroboscopic light source, the condenser, the light uniformizing plate and the reflecting plate, the light is guided to the light uniformizing plate through the condenser, the light is refracted through the light uniformizing plate to form the parallel light, the uniformity degree of emergent light is improved, and the emergent light is obtained through reflection of the reflecting plate. Therefore, the light-emitting direction is convenient to control, and the LED lamp is suitable for long-distance irradiation stroke environments.
Owner:HANGZHOU PNTOO ELECTRONICS TECH CO LTD

Emergency communication system in cabin

The invention belongs to the field of aviation, and particularly relates to an emergency communication system in a cabin, which comprises a main control system and a plurality of photoelectric sensing helmets, during emergency communication, in a photoelectric sensing helmet, a telephone transmitter converts collected sound into a communication electric signal, a control chip processes the communication electric signal and outputs the communication electric signal to a portable stroboscope lamp, and the portable stroboscope lamp transmits the communication electric signal in the form of an optical signal; after the photoelectric receiver receives an optical signal of the portable stroboscope lamp, the optical signal is processed by the optical communication control chip and then is output to the emergency lighting lamp, and the emergency lighting lamp transmits the optical signal; and in the other photoelectric sensing helmet, after the light sensor receives the light signal of the emergency lighting lamp, the light signal is converted into a communication electric signal, the communication electric signal is output to the earphone after being processed by the control chip, and the earphone converts the communication electric signal into sound.
Owner:XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA

Dual light source stroboscope controller

The utility model discloses a double light source stroboscope controller, aims at solving the problem that current light source controller can only support single light source, low luminance regulation precision, lack of synchronous control and remote management etc. The controller includes main control module, communication module, luminance regulation module, light source drive module, synchronous control module, paper break detection module, power management module, isolation protection module and configuration storage module. Main control module adopts STM32F407ZET6 microcontroller, possesses a variety of peripheral interface, is used for realizing the control of light source and the time sequence linkage of camera. Luminance regulation module uses MCP4728DAC chip to realize 4096 level light source luminance regulation, and light source drive module adopts MOS drive device to realize high -speed stroboscope control, and synchronous control module supports the synchronous selection of external encoder or internal signal, and paper break detection module realizes abnormal response through photoelectric coupler and logic control, and power module supports 24V input and step -by -step voltage stabilizing output 5V and 3.3V for each functional module.
Owner:HENAN KAIKAI INTELLIGENT TECH CO LTD

Method for capturing cavitation evolution characteristics of pump turbine

The invention belongs to the technical field of hydraulic model research and development tests, and particularly relates to a method for capturing cavitation evolution characteristics of a pump turbine, which comprises the following steps of: arranging an image acquisition system in a working space of the pump turbine, and connecting the image acquisition system with a central control system of a workstation in a communication way; the workstation central control system generates a stroboscopic control signal and a shooting control signal based on working parameters of the pump turbine, and sends the stroboscopic control signal and the shooting control signal to a stroboscope, a high-speed camera I and a miniature high-speed camera of the image acquisition system respectively; the high-speed camera I and the miniature high-speed camera capture cavitation image data of the back and the front of the pump turbine runner based on the shooting control signal; and the image processing equipment processes and analyzes the cavitation image data to obtain cavitation evolution characteristic information of the pump turbine. According to the technical scheme, the miniature high-speed camera is additionally arranged to cooperate with the height camera to capture the cavitation image of the pump turbine, and the problem that blade front cavitation observation is difficult is effectively solved.
Owner:DONGFANG ELECTRIC MACHINERY