35 results about "Digital radiography" patented technology

The utility model discloses a universal defect detection capability verification test block for digital radiographic inspection, which comprises a test block body and a thickness correction base plate, and the test block body is abutted against the thickness correction base plate. Test block drill holes and test block notch grooves are formed in the end, away from the thickness correction base plate, of the test block body, the test block notch grooves are formed in the upper surface of the test block body at intervals, the test block drill holes correspond to the test block notch grooves formed at intervals, and digital rays irradiate the test block drill holes and the test block notch grooves; and verifying the minimum detection capability of the digital ray process for circular defects and the minimum detection capability of the digital ray process for strip-shaped defects. The universal defect detection capability verification test block for digital radiographic inspection provided by the utility model has the advantages that the thickness is very small, the influence caused by different workpiece materials is reduced to the greatest extent, the universal defect detection capability verification test block is applicable to the detection capability verification of workpieces with similar density, the internal defects of the workpieces can be simulated, and the reliability of a detection process is further improved.

The application relates to the technical field of nondestructive testing, in particular to a nondestructive testing system based on digital ray CR technology, which comprises a base, the top end of the base is fixedly connected with a socket and a placing seat on the two sides, respectively, an annular slot is formed in one end of the socket, the annular slot and the placing seat are used for placing an inclined pipe and an arc-shaped pipe, a circulating detection mechanism is arranged on the outer side of the inclined pipe corresponding to the top end of the base, and a positioning and clamping mechanism and a cooling mechanism are arranged on the outer side of the placing seat corresponding to the top end of the base, respectively; the circulating detection mechanism comprises L-shaped rods fixedly connected on the two sides of the top end of the base, a special-shaped ring is fixedly connected between the two L-shaped rods, a special-shaped ring column is fixedly connected to the inner wall of the special-shaped ring, and a special-shaped groove is formed in the inner wall of the special-shaped ring column; the detection probe can move around the weld, so that the nondestructive detection operation on the weld can be continuously carried out, manual operation is not needed, and therefore the detection efficiency can be improved.

The invention relates to a camellia seed internal defect detection method based on an x-ray digital radiation imaging technology, which comprises the following steps: S1, sample imaging: carrying out digital projective imaging on camellia seeds by adopting table type X-ray scanning equipment, setting the X-ray tube voltage of the equipment to be 50 kV, the current of the equipment to be 5 mA, the gray value range to be-32768 to 32767, the image acquisition resolution to be 0.125 mm, and the X-ray tube voltage of the equipment to be 50 kV and the current of the equipment to be 5 mA; the size of an original image is 888 * 1096 pixels, the image format is JPG, each camellia seed sample is imaged once, and a two-dimensional transmission image is obtained and used for fully displaying the internal structure of camellia seeds and possible health, wizened, cavity or worm damage defects; according to the method, the high-resolution transmission image of the camellia oleifera seeds is obtained by adopting the X-ray digital radiation imaging technology, and the internal structure and tiny defect information of the camellia oleifera seeds can be completely displayed, including multiple defect types such as wizened, cavity and worm damage.

The utility model discloses X-ray imaging equipment in an oral cavity. The X-ray imaging equipment comprises DR (Digital Radiography) equipment, the movable clamp is used for clamping the DR equipment; the DR device is connected with a wireless handle or the DR device is connected with an external image device through a cable. Compared with the prior art that only a wired mode or a wireless mode can be used singly, the DR equipment installed on the movable clamp can be selectively combined with an external wireless handle or a wired cable, wireless and wired rapid switching can be achieved, use is more convenient, and the DR equipment can be used in a wired mode or a wireless mode independently. And meanwhile, the DR equipment does not need to be purchased additionally, so that the cost investment can be reduced.

The utility model discloses a CT / DR (Computed Tomography / Digital Radiography) two-in-one spectrum detection system applied to ore classification and identification. Comprising a containing box used for containing a detector, a movable platform used for containing ore and an X-ray light source. The detector and the X-ray light source respectively correspond to the ore on the movable platform; by combining the advantages of the CT technology and the DR technology, spectral information of the ore can be obtained more comprehensively; the X-ray light source is accurately positioned through the infrared laser set, it is ensured that the light path center of the X-ray light source can accurately irradiate the ore, and the measurement accuracy and stability are improved.

A method for analyzing DR images and an electronic device, the method comprising: obtaining a digital radiography (DR) image, wherein the DR image includes at least one of a DR original image and an image obtained after processing the DR original image; extracting image features from the DR image, the image features including at least one of a gray entropy feature, a texture feature, a noise feature, a gradient feature, and a divergence feature; inputting at least one of the gray entropy feature, the texture feature, the noise feature, the gradient feature, and the divergence feature into a target model, and outputting a DR image index reflecting the basic feature information content of the DR image. The present application obtains a DR image index that can objectively reflect the basic feature information content of the DR image from the image features extracted from the DR image, thereby providing an objective basis for image judgment for the operator.

1. The name of the design product: double column digital photography X-ray machine. 2. The use of the design product: for human medical imaging, specifically for radiographic examination of the head, chest, abdomen, pelvic cavity, leg and other parts of the human body. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: combined state reference drawing. 5. Other components that need to be explained: component 1 is the flat end of the X-ray machine; component 2 is the ball tube end of the X-ray machine; component 3 is the detection platform.

A digital radiography system and a digital radiography method. The digital radiography system includes: detectors (L) mounted on a plurality of detector arm supports (L1, L2) formed in a first plane (P); and a ray source (S) that is non-coplanar with the first plane (P). The digital radiography system further includes an image processing apparatus (10).

Disclosed is a multifunctional mobile digital radiography (DR) device. The multifunctional mobile DR device includes a rack, an X-ray detector, an image processor, a display, a handrail provided on the rack and a cleaning mechanism. The cleaning mechanism includes a guide assembly, a moving collar assembly and a first ultraviolet sterilization assembly. The guide assembly is adjacent to the handrail and extends from one end of the handrail to the other end of the handrail. The moving collar assembly is provided on the guide assembly and sleeved outside the handrail. The first ultraviolet sterilization assembly is provided on the moving collar assembly and configured to emit ultraviolet light and irradiate a peripheral of the handrail. The guide assembly is configured to guide the moving collar assembly and the moving collar assembly is configured to reciprocate between two ends of the handrail.

A flexible digital radiography detector assembly includes a flexible sleeve enclosing an array of photosensors supported by a flexible substrate. Integrated circuit readout electronics are coupled to the array of photosensors and to a circuit board having conductive contacts. The contacts engage a handheld readout electronics cartridge to initiate reading of image data captured in the array of photosensors and to display the image data on a screen in the readout electronics cartridge.

The invention relates to the technical field of welding seam detection, in particular to a nuclear power plant pipeline welding seam quality detection method, device and equipment and a storage medium. A welding seam area image of a pipeline welding seam area of a nuclear power plant is obtained through negative film digitization or digital rays, and the collected welding seam area image is preprocessed; and finally, the defect category of the weld seam image is automatically identified through the trained weld seam defect detection model, and the weld seam quality detection efficiency of the nuclear power station pipeline is improved.

The invention relates to a method and a system for adjusting a light field of a light bundling device, and a digital X-ray camera, and relates to the technical field. The method for adjusting the light field of the light bundling device comprises the following steps of: determining a first size of a pixel point in a subject image in the horizontal direction and a second size of the pixel point in the vertical direction, wherein the first size and the second size of the pixel point in the subject image are obtained when a camera mounted on the light bundling device shoots a subject under the condition that the light field size of the light bundling device is set; setting a set frame in the subject image, and determining a boundary pixel position corresponding to the set frame according to a first width and a first height of the subject image, the first size, the second size, and a second width and a second height corresponding to the set frame; and based on the first size, the second size and the boundary pixel position, adjusting the set light field size of the light bundling device. According to the embodiment of the invention, the adjustment of the light field of the light bundling device can be realized.

The invention relates to a digital ray detection device for a pipeline and a detection method thereof.The detection device comprises a crawler main body, a ray machine head and a visual positioning module are arranged at the front end of the crawler main body, a flexible imaging plate assembly is arranged outside the pipeline, and the flexible imaging plate assembly is provided with an imaging driving motor; the flexible imaging plate assembly can rotate in the circumferential direction of the outer wall of the pipeline and collect all-round transillumination images of the pipeline, and a control and data processing unit connected with the crawler body and the flexible imaging plate assembly is arranged outside the pipeline. In implementation, the crawler main body can be used for travelling in small and medium-sized pipe fittings, and the crawler main body structure can be bent, so that the crawler can pass through a 90-degree elbow without obstruction, and is suitable for a complex pipeline structure. The visual positioning module arranged at the front end of the crawl device body can automatically recognize and track a welding seam, the ray mechanism carries out full exposure on the interior of a pipe fitting, full-circumference transillumination of the welding seam is achieved in combination with rotation of the flexible imaging plate assembly, and the detection efficiency and the detection precision are effectively improved.

The invention discloses a plane CT (computed tomography) and DR (digital radiography) detection platform, and aims to provide a plane CT and DR detection platform which is simple in structure, accurate in positioning, capable of simultaneously realizing CT and DR detection and simple in online and offline mode remodeling. The device comprises a machine table, a movable carrying table module and a three-axis detection assembly, the three-axis detection assembly comprises a three-axis movable module and a detection module, the three-axis movable module is arranged at the upper end of the machine table, the detection module is connected with the movable end of the three-axis movable module, the movable carrying table module is arranged on one side of the machine table, and the three-axis movable module is connected with the movable end of the three-axis movable module. And the three-axis moving module drives the detection module to be matched with a product on the moving carrier module. The method is applied to the technical field of product detection.

The embodiment of the invention discloses a composite image accuracy verification method and device, a composite image modeling method and device, a digital radiography system and a storage medium. The method comprises the following steps: acquiring a composite image of an imaging target, wherein the composite image is formed by splicing digital ray images of different parts of the imaging target; inputting the composite image into a pre-trained accuracy verification model of the composite image for calculation; a verification result output by the model is obtained, and the verification result comprises whether the synthesized image is accurate or not and redundant or / and missing content identification when the synthesized image is not accurate. According to the embodiment of the invention, the accuracy of the synthesized image is automatically and quickly verified.

The utility model discloses a special double-stand-column vehicle-mounted DR (digital radiography) system for a physical examination vehicle, which relates to the technical field of radiodiagnosis equipment and comprises a carriage bottom plate, a bulb tube stand column, a chest radiography stand column, a third guide rail and a fourth guide rail, a first groove is formed in the upper end of the carriage bottom plate, and a second groove is formed in the right side direction of the first groove. Wherein the second groove is formed in the compartment bottom plate, rubber layers are arranged on the inner walls of the first groove and the second groove, a reciprocating motor is arranged on the left side of the first groove and fixedly installed on the compartment bottom plate, and the power output end of the reciprocating motor is fixedly connected with a rotating shaft. The rotating shaft can drive the bulb tube stand column and the chest radiography stand column to rotate into the first groove and the second groove, the rubber layer can reduce impact on the bulb tube stand column and the chest radiography stand column, in addition, the bulb tube stand column and the chest radiography stand column rotate into the first groove and the second groove, the occupied space of a carriage can be reduced, and the possibility of being collided can be reduced.

The invention relates to the field of digital X-ray photography, and provides a flat panel detector positioning collimation method which comprises the following steps: acquiring attitude information D (alpha, beta, gamma) of a flat panel detector carrier through an attitude sensor arranged in the flat panel detector carrier, and feeding back the attitude information D (alpha, beta, gamma) to a beam limiting device collimation unit; the method comprises the following steps: when a beam limiting device provided with a collimation unit is positioned above a measured object and a light field is opened, acquiring attitude information S (alpha, beta, gamma) of the beam limiting device through the collimation unit of the beam limiting device; according to the attitude information D (alpha, beta, gamma) of the flat panel detector carrier and the attitude information S (alpha, beta, gamma) of the beam limiting device, an operator is guided to adjust the attitude of the beam limiting device until S (alpha, beta, gamma) = D (alpha, beta, gamma), so that the light field of the beam limiting device is perpendicular to the plane of the flat panel detector carrier; the beam limiting device collimation unit sends a ranging signal to the flat panel detector carrier; and dynamically selecting and executing a corresponding target position calculation and beam limiting device position adjustment strategy based on the effective and visible distance measuring sensor in the sensor set and the received distance measuring signal, so that the position of the beam limiting device approaches to a set target point So.

An analysis method and a DR imaging device for DR imaging, the method comprising: acquiring a digital radiography DR image of a target object by the DR imaging device, the DR image comprising at least one of a DR original image and an image processed from the DR original image; extracting an image feature from the DR image; acquiring a device parameter feature according to a device parameter of the DR imaging device, and / or acquiring an object parameter feature according to an object parameter of the target object; determining a DR feature index according to the image feature, and the device parameter feature and / or the object parameter feature, the DR feature index being used to represent a comprehensive level between a radiation dose of X-ray suffered by the target object and an image quality of the DR image. According to the image feature and the parameter feature of the DR image, the DR feature index which can objectively represent the comprehensive level between the radiation dose of X-ray suffered by the target object and the image quality of the DR image is obtained, so as to provide an objective judgment basis for an operator.

The utility model discloses a suspension supporting arm of a suspension digital photography X-ray machine, which comprises a mounting plate, a multi-stage electric telescopic rod mounted at the bottom of the mounting plate, an X-ray machine head mounted at the bottom of the multi-stage electric telescopic rod, and a side plate mounted on the outer wall of one side of the X-ray machine head, and a rotating column is rotationally mounted on the outer wall of one side of the side plate. According to the suspension supporting arm of the suspension digital photography X-ray machine, when a patient with the injured feet needs to shoot X-rays on the feet or shanks, the patient can directly put the feet on an image plate for X-ray shooting, more convenience is brought to the patient, the shanks of the patient can be put on the bearing assembly in the shooting process, and the patient feels more comfortable; when the feet do not need to be shot, the worm gear can be driven to rotate through the driving assembly, then the rotating column is driven to rotate, the fixing plate is driven to move upwards to be stored, and shooting of other positions by the X-ray machine head is not affected.

This utility model relates to the field of X-ray machine technology, and in particular to an unlocking device for a digital X-ray imaging machine. It includes a signal triggering component, which comprises a handle. The inner sidewall of the handle has a mounting groove, within which a signal triggering plate is detachably mounted. The signal triggering plate has a first curved surface on its side facing the outer peripheral wall of the handle. Curved blocks are symmetrically connected to both ends of the signal triggering plate. The outer sidewall of each curved block includes a fourth curved surface connected to the outer peripheral wall of the handle, a fifth curved surface tangent to the outer peripheral wall of the handle, and an edge formed at the junction of the fourth and fifth curved surfaces. In this utility model, the fourth curved surface of the curved block forms a protruding structure, and the first curved surface of the signal triggering plate also forms a protruding structure. A finger must precisely press the area of ​​either the first or fourth curved surface to trigger the signal, thus narrowing the effective contact area to a specific region and preventing accidental activation due to hand or clothing contact.

This utility model belongs to the technical field of comparative test blocks and discloses a comparative test block for digital radiography (DR) pipe thickness measurement. It includes a magnetic block with a straight rod connected to its center. A stepped test block is installed in the middle of the straight rod, and a round bar is fixedly installed at the end of the straight rod. Based on the current availability of only one set of data to ensure the authority of the final data used, this method allows for the simultaneous acquisition of data from both the direct measurement method using a round bar and the experimental comparison method using a stepped test block in a single installation. The two sets of data are compared and verified, making the data more authoritative.

The utility model provides industrial DR (Digital Radiography) detection equipment based on flat belt transmission, which can finish DR detection on the way that a conveying belt device conveys a product to a certain target position without specially carrying the product from a conveying line to a position between a flat plate receiving device and an X-Ray ray tube. After DR detection of the product is completed, the product does not need to be taken out from the position between the panel receiving device and the X-Ray ray tube through a mechanical arm or a clamp or manual work, so that the detection efficiency of the product is greatly improved on a product production line, meanwhile, in existing industrial DR detection equipment, only the line scanning detector is matched with flat belt surface detection, and the detection efficiency is greatly improved. However, the detection effect of the method cannot meet the requirement of a higher standard; the utility model belongs to the technical field of industrial DR detection.

The present invention discloses a method for diagnosing the coaxiality fault of the guide rod in a vacuum interrupter based on X-ray imaging, which includes: obtaining multiple local images of the vacuum interrupter by using X-ray imaging technology; adopting a direction template matching algorithm to splice the multiple local images into a complete digital radiography (DR) image of the vacuum interrupter; adopting a contrast-limited adaptive histogram equalization algorithm to enhance the image contrast so as to highlight the guide rod information; designing a cross-correlation algorithm to locate the center of the guide rod in combination with the axisymmetric characteristics of the guide rod; dividing the guide rod image into multiple segments along the vertical direction, calculating the center point positions of each segment one by one, and fitting the center points of multiple segments by the least square method to determine the optimal axis of symmetry of the guide rod; calculating the slope difference of the optimal axis of symmetry, and if it exceeds a preset threshold, it is determined that the guide rod has an inclination fault. When detecting and analyzing the coaxiality of the guide rod, the method of the present invention can effectively detect the inclination fault of the guide rod and can significantly improve the fault diagnosis and detection accuracy of the core components.

The application discloses a kind of based on digital ray technology's transmission line strain clamp nondestructive testing method, it is related to transmission line strain clamp detection field, method includes: collection strain clamp radiographic image and geometric dimension, stress and so on multidimensional parameter, data fusion is carried out by hypergraph structure, multidimensional heterogeneous strain clamp analysis model is calculated and analyzed in edge side using optimized hypergraph neural network and edge computing gateway, to visualize presentation detection result in the form of double screen linkage, while realizing intelligent diagnosis and defect early warning;The application provides an efficient, accurate and reliable solution for the intelligent operation and maintenance of transmission line strain clamp, effectively improves the safe operation level and operation and maintenance efficiency of power grid.

The utility model discloses a flaw detection system for DR (Digital Radiography) detection of a small-diameter tube, and relates to the technical field of automatic nondestructive testing. The X-ray system, the ray machine movement system, the grating opening and closing system, the pipe clamping and rotating system, the digital imaging system, the image quality indicator automatic placing system, the lead room protection system, the workpiece sorting system and the automatic marking system are respectively in control connection with the control system. According to the DR detection flaw detection system for the small-diameter pipe, clamping and rotation of the small-diameter pipe can be automatically controlled through the control system and the pipe clamping and rotating system; opening and closing of the grating can be automatically controlled through the control system and the grating opening and closing system. The arrangement of the image quality indicator can be automatically controlled through the control system and the image quality indicator automatic arrangement system, so that the efficiency and the detection quality are improved.

This invention relates to the field of medical imaging technology, specifically to a dynamic detection method and stress analysis system for pelvic stability based on dynamic DR (Digital Radiography). The method includes acquiring static CT or MRI images of the patient's pelvis based on the user's vital signs, adapting parameters of a three-dimensional infrared motion capture system, a force platform, and pressure sensors, and establishing a pelvic coordinate system and defining key point geometric features. Under load, the method collects the user's data to be tested; after preprocessing the collected user data, it reconstructs a three-dimensional model of the user's pelvis; based on the reconstructed three-dimensional pelvic model, it performs biomechanical analysis to generate pelvic stability indices; and automatically generates a pelvic stability risk index based on the pelvic stability indices, outputting clinical decision recommendations. This addresses the problem that traditional pelvic detection methods still rely on static images, failing to effectively quantify dynamic stress distribution and stability assessment, resulting in inaccurate assessment results.

A linkage type X-ray digital flat panel inspection device for straight welded steel pipes, comprising: a crawler fixing frame, a walking imager crawler, a mobile lifting ray machine device, a split conveyor roller table, a lifting and rotating track, and a system console. After feedback and summary of each piece of information through the system console, drive control commands are sent to drive the split conveyor roller table and the lifting and rotating track successively to convey the straight welded steel pipe to be inspected into the inspection room and then jack it up for adjustment and positioning. Then, the walking imager crawler and the mobile lifting ray machine device are synchronously driven to carry the X-ray machine and the imager to conduct real-time linkage inspection on the straight weld at the bottom of the steel pipe. The present invention overcomes the defects of traditional inspection methods and the prior art, saves the length space of the inspection room, greatly improves the safety and reliability, and greatly saves the equipment cost due to its simple and reliable structure. It has the advantages of convenient installation and maintenance, high inspection sensitivity, high inspection stability and efficiency, etc.

The utility model discloses a GIS (Gas Insulated Switchgear) equipment defect detection device convenient to install, which comprises an X-ray machine, a DR (Digital Radiography) imaging plate and a hanging arm assembly, and is characterized in that the hanging arm assembly is hung on a barrel of GIS equipment to be detected, and a first supporting assembly and a second supporting assembly are respectively, correspondingly, detachably and fixedly arranged on two sides of the hanging arm assembly; the X-ray machine and the DR imaging plate are correspondingly arranged on the first supporting assembly and the second supporting assembly respectively, and X-rays emitted by the X-ray machine penetrate through a barrel of GIS equipment and irradiate the DR imaging plate to form image information. The whole installation structure is of an assembly type, installation is convenient, the installation requirements of the X-ray machine and the DR imaging plate can be met at the same time through one installation structure, and two sets of supports do not need to be independently arranged; after being assembled, the support can provide stable support, does not occupy ground space, can better adapt to a working site, can break up the whole into parts after being disassembled, and is convenient to carry.

An example portable radiography scanning system includes: a radiation detector configured to generate digital radiography images based on incident radiation; a radiation emitter configured to output the radiation; and a computing device configured to: receive the digital radiography images from the radiation detector; compensate one or more of the digital radiography images for variations in magnification of the digital radiography images; and store one or more compensated radiography images based on the magnification compensation and associated with physical location information.

The invention relates to a charging control method and device, medical equipment and a storage medium, the method is applied to DR equipment, and the DR equipment comprises a flat panel detector. The method comprises the following steps: detecting whether the residual electric quantity of the DR equipment is greater than a first preset electric quantity threshold; under the condition that the residual electric quantity of the DR equipment is greater than a first preset electric quantity threshold value, charging the flat panel detector; and after the flat panel detector is fully charged and a preset charging condition is satisfied, returning to execute the step of detecting whether the residual electric quantity of the DR equipment is greater than the first preset electric quantity threshold. By using the charging control method provided by the invention, the cruising ability of the flat panel detector can be improved.