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674results about How to "Intuitive test results" patented technology

Method and device for detecting looseness of rail fastener in high-speed dynamic real-time manner

The invention relates to a method and device for detecting the looseness of a rail fastener in a high-speed dynamic real-time manner. The method comprises the following steps: a TDI line scanning camera transmits a collected image to an industrial control computer through a high-speed collecting card; an object which needs to be detected is determined; the industrial control computer cuts apart and clips the image, extracts the image of the fastener, and preprocesses the image; the image spectrum of the fastener is obtained; the image spectrum, which is obtained in a real-time manner, of the fastener is compared with the image spectrum, which is well stored in the industrial control computer, of the fastener, and defect recognition is performed; if a defect exists, the industrial control computer sends a warning that the fastener is loose to a display, and GPS positioning information is combined to obtain the position of a fault point; and the data of a testing result are recorded. The device comprises the TDI line scanning camera, the industrial control computer, the display, train speed detection equipment, a train mileage calculator, a GPS positioning instrument and a light source assembly. Compared with the prior art, the method disclosed by the invention has the advantages of high detection accuracy, simple image processing algorithm, visualized testing result and the like.
Owner:SHANGHAI UNIV OF ENG SCI

Multifunctional unsaturated soil permeameter and testing method thereof

The invention discloses a multifunctional unsaturated soil permeameter and a testing method thereof. The permeameter comprises a first bracket, a second bracket, a water supplementing device which is fixed on the first bracket and can perform up-and-down adjustment, and a soil sample permeation device which is fixed on the second bracket and can perform up-and-down adjustment, wherein the water supplementing device and the soil sample permeation device can be combined to form an underground water level rise simulation device, a flooding simulation device or a rainfall simulation device. The testing method comprises the following steps of: 1, performing underground water level rise, flooding and rainfall simulation tests, namely respectively performing the underground water level rise, flooding and rainfall simulation tests on the same tested soil sample by employing the underground water level rise simulation device, the flooding simulation device and the rainfall simulation device; 2, performing test data arrangement, and acquiring a permeation characteristic testing result of the tested soil sample. The multifunctional unsaturated soil permeameter is reasonable in design, low in investment cost, simple in operation, convenient in realization and good in using effect and can simply and rapidly finish the permeation characteristic testing process of unsaturated soil.
Owner:XIAN UNIV OF SCI & TECH

Intelligent transformer terminal and monitoring method thereof

The invention discloses an intelligent transformer terminal and a monitoring method thereof. The intelligent transformer terminal consists of a hardware part and a software part, wherein the hardware part comprises a host, a lead, a sensor assembly, an information processing module, a protection function module, a control output function module, an exception warning function module, a display module and a communication module; and the software part comprises an application service platform, a database, an after-sales service platform, a product management platform and a mobile equipment client APP on the host. According to the intelligent transformer terminal and the monitoring method thereof, running parameters of the transformer are measured in a way of transmitting a physical parameter change and/or acquiring a power signal and displayed rapidly, and remote monitoring, operations and information feedback are realized by the mobile equipment client APP or a webpage through network transmission. When danger or important prompt information is detected, the information is pushed to the mobile equipment client APP or the webpage and after-sales service platform, so that a reliable and safe operating environment can be provided for an electric power system by the transformer.
Owner:顺特电气设备有限公司

Hermetic sealing program control testing stand

The invention discloses a hermetic sealing program control testing stand, comprising a working platform, a clamping positioning device, a sealing plugging device, a gas source processing device, a compression gauge and an electric control cabinet. The clamping positioning device comprises a pedestal, a clamping air cylinder and a position limiting block; the output terminal of the clamping air cylinder is provided with a clamping block; the sealing plugging device comprises two sealing plugging mechanisms which are identical in structures; each sealing plugging mechanism comprises a support base, a sealing plug and a sealing plugging air cylinder; the output terminal of the sealing plugging air cylinder is fixedly connected to an installation block which is fixedly connected to the sealing plug through a gas channel joint and the sealing plug; the air inlet terminal of a gas processing device is in communication with an air source; the air outlet terminal is in communication connection with the corresponding gas channel joint of the sealing plugging mechanism through a first switch solenoid valve; and the corresponding gas channel joint of another sealing plugging mechanism is in communication connection with the pressure gauge. The hermetic sealing program control testing stand is simple in structure, easy in operation, low in manufacture cost, high in testing accuracy and wide in application range, and does not affect the pipe fitting quality during the detection process.
Owner:NINGBO GUANTONG MACHINERY

Water-secluding pipe mechanical behavior testing system and method based on coupling effect of marine environment and drilling conditions

ActiveCN104266854AShort cycleAccurate tension applicationStructural/machines measurementPipingPilot system
The invention discloses a water-secluding pipe mechanical behavior testing system based on a coupling effect of a marine environment and drilling conditions. A water pump (21), a light source (1), a camera A (3) parallel to the water flow direction, a contrast board A (5) parallel to the water flow direction, a camera B (4) perpendicular to the water flow direction and a contrast board B (6) perpendicular to the water flow direction are installed on the outer wall surface of a pool (2), a motor supporting frame (9) is arranged on a tension supporting board (17), and an upper connecting structure, a water-secluding pipe (8) and a lower connecting structure which are connected in sequence are arranged between the motor supporting frame (9) and the bottom of the pool (2) from top to bottom. The invention further discloses a testing method. The water-secluding pipe mechanical behavior testing system and method have the advantages that mechanical behaviors of the water-secluding pipe can be comprehensively, accurately and really simulated under the coupling effect of the deep sea drilling conditions and the marine environment, and the system can simulate the marine environment, apply tension to the top of the water-secluding pipe, simulate rotation of drill strings different in rotating speed and apply different magnitudes of bit pressure.
Owner:SOUTHWEST PETROLEUM UNIV

Carbon fiber gas cylinder detection line and carbon fiber gas cylinder detection method

The invention discloses a carbon fiber gas cylinder detection line and a carbon fiber gas cylinder detection method. The detection line includes, in a front-to-back arrangement manner, a water pressure test apparatus, a water pressure auxiliary test apparatus and an air tightness test apparatus. The water pressure test apparatus includes a test rack, a test operation bench, a pressurizing apparatus, a test case installed on the test rack, and test trolleys for stably placing a plurality of to-be-tested gas cylinders. The water pressure auxiliary test apparatus includes a gas cylinder fixture, a transporting trolley, and a gas cylinder water-pouring-away and drying device. The air tightness test apparatus includes an air tightness detection apparatus and a second air supply apparatus for supplying air to the to-be-tested gas cylinders. The air tightness test apparatus is in a cabinet structure or a ground trough structure. The detection method includes the steps of 1) water pressure test; 2) water pouring-away and drying treatment; and 3) air tightness test. The detection line is reasonable in design and simple in operations, is good in use effects, and can easily and quickly complete water pressure test and air tightness test for a plurality of carbon fiber gas cylinders.
Owner:TECHN MONITORING CENT OF CHANGQING PETROLEUM EXPLORATION BUREAU

Machine vision detection method based on four-colour printed matter registration detection marks

The invention discloses a machine vision detection method based on four-colour printed matter registration detection marks, comprising the following steps of: presetting graphs of the four-colour printed matter registration detection marks, and taking the circle centre of a black solid circular mark graph as a reference of the registration detection marks, wherein the circle centre of a yellow annular mark graph, the circle centre of a pinkish red annular mark graph, and the circle centre of a cyan annular mark graph are respectively as same as the circle centre of the black solid circular mark graph; acquiring images of preset graphs of the registration detection marks during a printing process; respectively obtaining coordinates of the circle centres of the registration detection marks in the images by a computer system; calculating registration deviation via the coordinates of the circle centres; comparing the squared value of the registration deviation with a deviation tolerance level; and finally, outputting a registration deviation result. The registration detection marks are simple in structure and small in occupied space, and camera can be convenient to rapidly and accurately shoot. According to the corresponding detection method, only deviation analysis does need to be performed via circle centre parameters, thus being high in detection efficiency, intuitive in result, and capable of realizing online detection for high-speed printed matters.
Owner:SHANGHAI UNIV

Quick African swine fever virus detection card and application thereof

The invention discloses a quick African swine fever virus detection card and application thereof, so as to solve the technical problem of hard African swine fever virus detection. Polyclonal antibodies PoAbI against African swine fever virus p30, P54 and p72 protein labeled with colloidal gold are absorbed on a colloidal gold labeling pad of the detection card; a detection membrane is provided with goat or rabbit anti-mouse IgG antibodies or a quality control line C printed by staphylococcus aureus SPA; and a detection line T printed by polyclonal antibodies PoAbII against African swine fevervirus p30, P54 and p72 protein is also arranged. The invention also discloses a using method for the quick African swine fever virus detection card. The method comprises steps: a to-be-detected sampleis acquired, and PBS or water is added for suspension or grinding; the sample is dripped to the sample loading end of the quick African swine fever virus detection card; and horizontal placing is carried out to observe a result. The quick African swine fever virus detection card adopts a double antibody sandwich method, and has the advantages of strong specificity, high sensitivity, high detection efficiency, high efficiency and practicability, and important practical application value.
Owner:河南中泽生物工程有限公司 +1

Oral cavity comprehensive detecting method and apparatus based on flexible phase controlled ultrasonic array

The invention discloses oral cavity comprehensive detecting method and apparatus based on a flexible phase controlled ultrasonic array. The apparatus comprises a display module, a phase controlled ultrasonic transmitting module and a phase controlled ultrasonic receiving module connected with a control module, respectively. The phase controlled ultrasonic transmitting module and the receiving module are further connected with a flexible phased array ultrasonic transducer array. The method comprises the following steps of: performing ultrasonic scanning to detect teeth facing outwards skin in periphery of the oral cavity on the face or in all directions of other soft tissues of the oral cavity through the flexible phased array ultrasonic transducer array; transmitting ultrasonic waves with set frequency to detection points through the phased array focused ultrasound when detecting the teeth so as to detect the amplitude of the reflected wave and detect whether defect waves exist in the reflected wave; and transmitting ultrasounds with different frequencies to the detection points through the phased array focused ultrasound and detecting the attenuation of the transmitted wave with different frequencies at the other end when detecting the soft tissues of the oral cavity so as to obtain broadband ultrasonic attenuation parameters. Therefore, health states of the soft tissues of oral cavity can be obtained rapidly.
Owner:SOUTH CHINA UNIV OF TECH

Device for testing performance of optical module

The invention discloses a device for testing the performance of an optical module and aims at providing a convenient and quick test environment. The invention is realized by the following technical scheme: a PC is connected to a server through an RJ45 network cable, is connected to an optical module performance test board through a USB data line, and is connected to an optical power meter throughan RS232 serial line, the optical power meter is connected to an ROSA optical device through an optical fiber splitter, a tested optical module is connected to the test board through a gold finger slot, the average optical power of the TX end of the tested optical module is divided into two by the optical fiber splitter, one path is sent to the ROSA optical device, and the other path is sent to the optical power meter, the PC obtains the average optical power value of the optical module measured by the optical power meter, and then compares the average optical power value with an optical powerthreshold that have been configured by the server, and determines whether the average optical power value of the tested optical module is within a normal range by using the comparison result. An alarm light visually displays various performance test results of the tested optical module.
Owner:四川泰瑞创通讯技术股份有限公司

Complex distortion generator for testing stability of compressor

The invention discloses a complex distortion generator for testing the stability of a compressor. The complex distortion generator comprises a steady-state total pressure distortion generator and a rotational flow distortion generator which are arranged in a compressor casing along the length direction, and is characterized in that the steady-state total pressure distortion generator generates different ranges of steady-state circumferential total pressure distortion through controlling distributed nozzles, and adjusts the air injection speed of the nozzles to change the steady-state total pressure distortion intensity; the rotational flow distortion generator adjusts the rotational flow distortion form through changing the angle of a rotational flow adjustment plate in a switching section of a rotational flow generator, generates three kinds of rotational flow distortion such as same-direction single vortex, opposite-direction single vortex and pair vortex, and can change the rotational flow distortion intensity through adjusting the pressure of an air pump and the openness of an electromagnetic valve. The complex distortion generator is simple in structure and convenient to operate, can generate individual steady-state total pressure distortion or rotational flow distortion at an inlet of the compressor conveniently, can also generate steady-state total pressure and rotational flow combined distortion, facilitates to carry out tests on influences imposed on the stability of the compressor by different forms of complex distortion, and is stable and reliable in operation.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Static pressure and vibration composite test device for hydraulic tube and connecting joint thereof

ActiveCN101865180ADetermining the ability to withstand fatigueSimple structureFluid-pressure actuator testingShunt DeviceControl system
The invention discloses a static pressure and vibration composite test device for a hydraulic tube and a connecting joint thereof. The device comprises a hydraulic pump station, a test assembly, a hydraulic control shunt device, a servo cylinder, a high-frequency servo valve and a data acquisition control system. The test assembly comprises a fixed valve block, a vibrating valve block and a test piece, wherein the test piece consists of the hydraulic tube and the connecting joint to be tested; one end of the test piece is connected with the fixed valve block while the other end is connected with one end of the vibrating valve block; the other end of the vibrating valve block is connected with a piston rod of the servo cylinder; the hydraulic pump station provides hydraulic supply; the hydraulic control shunt device is connected with the servo cylinder on which the high-frequency servo valve is integrated; the data acquisition control system is connected with a hydraulic shunt device, the servo cylinder and the high-frequency servo valve; the servo cylinder drives the vibrating valve block to move up and down reciprocally so as to realize the bending of the overall test piece; and the hydraulic pump station provides a static pressure for the test piece through the fixed valve block so as to perform a static pressure test and a vibration test on the test piece at the same time. The device has the characteristics of simple structure and obvious test effect.
Owner:中舟海洋科技(上海)有限公司
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