25 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.

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 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 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 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.

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.

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.

Patient positioning device (1) for standing or sitting patient positioning for a medical imaging device for digital radiography and / or fluoroscopy, in which imaging device for generating images of a patient (2) a radiation source and / or a radiation receiver (5) move around the patient (2) on coordinated movement paths (6), characterized by a substantially horizontally arranged base plate (7) for providing a standing surface (8) for the patient (2) and a positioning aid (9, 13, 15) for the patient (2) connected directly or indirectly to the base plate (7) and arranged substantially perpendicular to the base plate (7).

A long-length imaging method based on digital radiography, and an image processing system and a computer-readable memory medium to implement the method. According to one respect of the invention, the long-length imaging method based on digital radiography comprises the following steps: A. determining a part of interest of an anatomy of an object; B. determining imaging parameters of digital radiography based on the part of interest, the imaging parameters at least including a plurality of specified positions of imaging components, wherein the plurality of specified positions are configured to make X-ray images captured at the plurality of specified positions by the imaging components include the part of interest of the anatomy of the object; and C. generating a long-length image in relation to the part of interest of the anatomy of the object based on the X-ray images at the plurality of specified positions.

An imaging system for imaging an object, the imaging system comprising: a housing having a center opening; a CT imaging unit mounted to the housing, the CT imaging unit comprising: a rotatable disc extending around the center opening; an X-ray emitter mounted to the rotatable disc and configured to emit an X-ray beam; and an X-ray detector mounted to the rotatable disc in alignment with the X-ray beam; and a digital radiography imager comprising a detector plate mounted to the rotatable disc, the detector plate being configured to assume (i) a retracted position in which the detector plate is not aligned with the X-ray beam, whereby to permit the X-ray beam to contact the X-ray detector, and (ii) an extended position in which the detector plate is aligned with the X-ray beam, whereby to permit the X-ray beam to contact the detector plate.

An x-ray imaging system includes an x-ray source assembly having a transmitter and a video camera. A free standing digital radiographic (DR) detector includes a receiver, wherein the transmitter and receiver are configured to determine an spatial orientation of the digital radiographic detector relative to the x-ray source assembly. A digital display presents a live video image of a patient with a current position of the DR detector overlayed on the video image of the patient. A DR detector having built-in AEC sensors may display the current position of each of the AEC sensors in the overlay relative to the DR detector position based on the determined orientation of the DR detector. Each of the AEC sensors are individually activatable, and an AEC selection interface is configured to receive an operator selection of one or more of the AEC sensors to be activated.