39 results about "Flat detector" patented technology

The invention relates to a multi-axis cooperative scanning motion control method and system for high-precision scanning imaging, and relates to the technical field of scanning imaging process.The method comprises the steps that in the scanning imaging process, an imaging mechanism model of light tube-sample-flat plate imaging is constructed based on a ray expected track of a ray source, and a light tube-sample-flat plate imaging model is constructed; and analyzing the expected position of the flat panel detector. Then, according to an expected position and a ray expected trajectory, analyzing a motion error and a coupling relationship between the expected position and the ray expected trajectory, and establishing a coupling influence; and according to the coupling influence, a high-precision synchronous motion controller is constructed. Then, kinematics capability limitation and coupling characteristics of each axis are analyzed, coupling mapping and speed constraint are introduced, and a control instruction of synchronous control is updated through speed correction; and finally, performing high-precision synchronous scanning control on each axis motion controller by using the control instruction. Therefore, the full-coverage detection and high-precision imaging of the detected sample are realized by limiting the motion and constraining a zooming synchronous control mechanism.

The utility model provides a mobile DR flat panel detector charging detection device comprising a battery module used for supplying power to a mobile DR control module; the flat panel detector charging module is used for performing in-place detection on the flat panel detector and feeding back a signal to the mobile DR control module, charging the flat panel detector under the control of the mobile DR control module, and feeding back the charging state of the flat panel detector to the industrial personal computer module; the industrial personal computer module is used for displaying the charging state in real time for an operator to perform man-machine interaction, and is used for receiving the charging state information sent by the flat panel detector charging module and feeding back the charging state information to the mobile DR control module; and the mobile DR control module is used for controlling the flat panel detector charging module to charge the flat panel detector and performing data transmission with the industrial personal computer module according to the in-place detection result. According to the utility model, the charging process of the flat panel detector can be effectively monitored and protected, so that the service life of the flat panel detector is prolonged.

A battery inspection apparatus (400), a flat panel detector (430), and a battery production device. The battery inspection apparatus (400) comprises a bearing assembly (410), a ray source (420), and a flat panel detector (430); the bearing assembly (410) is used for bearing a battery under test (100), the ray source (420) is located at one end of the bearing assembly (410), and the direction in which a detection ray of the ray source (420) is emitted faces the battery under test (100); the flat panel detector (430) is located at the other end of the bearing assembly (410) distant from the ray source (420), the flat panel detector (430) is used for receiving a detection ray that is emitted by the ray source (420) and penetrates through the battery under test (100), the flat panel detector (430) comprises a scintillator layer (431), and the thickness of the scintillator layer (431) is greater than a first preset thickness, so that the density resolution of the flat panel detector (430) is less than 0.5%.

The utility model provides a pet's dynamic DR equipment, including bed body, bulb tube, all-in-one machine, dynamic flat panel detector and dynamic high pressure generator, all-in-one machine stand column internal installation transmission piece, the transmission piece is used for transmission lifting column to go up and down on the upper part of all-in-one machine stand column, the bulb tube is rotatablely connected to the top of lifting column, and the bulb tube is rotatably connected to the top of lifting column. The placing table accommodates the all-in-one machine through the accommodating groove, the dynamic flat panel detector is mounted at the top surface part of the placing table, and the dynamic high-voltage generator is mounted in the all-in-one machine and is electrically connected with the bulb tube. The lifting column is driven by the transmission part in the stand column of the all-in-one machine to drive the bulb tube to ascend or descend to a proper height. When the dynamic DR equipment for the pet needs to move in a narrow space, the placement table can be separated from the all-in-one machine and independently pushed by hands to move; when the dynamic DR equipment for the pet needs to move in a wide space, the placement table can accommodate the all-in-one machine through the accommodating groove, and the placement table can abut against and push the all-in-one machine to move at the same time when the placement table is pushed.

The invention relates to a dark field correction method and device, computer equipment and a computer readable storage medium. The method comprises the steps of determining a default working mode of a flat panel detector according to a default protocol in response to starting of the flat panel detector, and generating a first correction template corresponding to the default working mode; and under the condition that the default working mode comprises a target working mode for the flat panel detector to collect the medical image, performing dark field correction on the medical image according to a target correction template in the first correction templates. According to the method, the flat panel detector does not need to be preheated to the specified temperature to regenerate the correction template, the flat panel detector can be used immediately after being started, and the waiting time of a user is shortened.

A medical radiation detection device with a rotating arm comprises a supporting column, a lifting column, the rotating arm A and a transmitting assembly. The supporting column is used for bearing and supporting the lifting column; the lifting column is mechanically connected with one end of the rotating arm A; the other end of the rotating arm A is mechanically and rotationally connected with the launching assembly; the lifting column can move up and down relative to the supporting column and drives the rotating arm A and the launching assembly to move up and down; the rotating arm A can rotate in the horizontal direction relative to the lifting column; the rotating arm A can drive the launching assembly to rotate in the horizontal direction. The rotating space of the transmitting assembly is open, the structure is simple, the cost is lower, and the use experience is good. The relative position of the flat panel detector and the transmitting assembly can be flexibly set according to the actual shooting position.

The invention provides a multi-angle and multi-probe digital ray-based gas cylinder liner and bottleneck end seam defect shape detection device and method, the device comprises a flat panel detector, a fixed rod anode detection device and a movable rod anode detection device, and the movable rod anode detection device can move along the radial direction of a hydrogen storage cylinder; under the driving of the fixed rod anode detection device or the movable rod anode detection device; the fixed rod anode detection device or the movable rod anode detection device is provided with a plurality of rod anodes, the connecting line of the plurality of rod anodes is along the axial direction of the gas cylinder, and the distance between the adjacent rod anodes is known; the flat panel detector is provided with an adjusting device which enables the movable rod anode detection device to move in the radial direction, and further comprises a distance measuring device which is used for measuring the distance between the axis of the movable rod anode detection device and the axis of the fixed rod anode detection device. According to the device, areas prone to omission can be reduced, 360-degree dead-angle-free ray penetration is achieved, and defect omission caused by a blind area is avoided.

The utility model discloses a quick detection equipment includes shielded house, frame, detection conveying line subassembly, first flat panel detector, second flat panel detector, detector drive assembly, first ray source, second ray source, ray source drive assembly and electric cabinet, be equipped with feed inlet and discharge gate on shielded house, be equipped with respectively first lifting shielded door subassembly and second lifting shielded door subassembly on feed inlet and discharge gate, the frame sets up in shielded house, and detection conveying line subassembly sets up on the frame and is used for receiving the product of waiting for detecting, first flat panel detector sets up in the frame, second flat panel detector sets up in the frame, detector drive assembly sets up on the frame and is located detection conveying line top, first flat panel detector and second flat panel detector all install on detector drive assembly and detector drive assembly drive first flat panel detector and second flat panel detector displacement and overturn. The utility model has can multi -angle, dead angle high -efficient detection advantage without.

The embodiment of the present application discloses a method, device and cassette assembly for determining the direction of a flat panel detector. The cassette assembly comprises a cassette, a flat panel detector arranged in the cassette, and an object detection sensor arranged on the inner wall of the cassette. The flat panel detector comprises a first area adapted to be detected by the object detection sensor and a second area adapted to not be detected by the object detection sensor. The object detection sensor is used to detect the flat panel detector and generate a detection result corresponding to the arrangement direction of the flat panel detector in the cassette. The embodiment of the present application can determine the direction of the flat panel detector without contacting the flat panel detector, thereby avoiding the abrasion of the flat panel detector. In addition, the direction of the flat panel detector can be determined in multiple ways, thereby being widely applicable.

The application provides a kind of detecting substrate, its manufacturing method and flat panel detector, belong to photoelectric detection technical field, it can at least partially solve the problem of poor stability of transistor in existing detecting substrate.The application provides a kind of detecting substrate, comprising: substrate, transistor, reading electrode and photoelectric conversion structure are sequentially arranged along the direction away from substrate;The detecting substrate further comprises: oxide layer between the layer where the transistor is located and the layer where the reading electrode is located;Wherein, the orthographic projection of the oxide layer on the substrate at least covers the orthographic projection of the transistor on the substrate;The reading electrode is electrically connected with the transistor, and the orthographic projection of the connecting position on the substrate does not overlap with the orthographic projection of the transistor on the substrate.

The invention provides an image correction method based on a flat panel detector. The method comprises the following steps: acquiring a chip pixel mapping table; calculating initial chip data according to the initial flat-field image, the initial dark-field image and a chip pixel mapping table; executing a clustering analysis algorithm according to the first gain drift coefficient and the first baseline drift coefficient; calculating a linear regression coefficient between the non-class representative chip and the class representative chip according to a first gain drift coefficient and a first baseline drift coefficient corresponding to the analog-to-digital conversion chip; calculating a second gain drift coefficient and a second baseline drift coefficient according to the working flat field image, the initial gain coefficient, the initial baseline coefficient and the linear regression coefficient; and generating a pixel correction image according to the target gain coefficient, the second gain drift coefficient, the second baseline drift coefficient and the chip pixel mapping table, and correcting the clinical original image according to the pixel correction image. Through the sampling strategy of the representative chip, full calculation is not needed, and the working efficiency of the flat panel detector is improved.

The invention relates to the technical field of DR flat panel detector supports, and discloses a foldable DR flat panel detector protection support which comprises a shell and a base, a crank is rotatably connected to the interior of the shell, a first gear is fixedly connected to the outer wall of the crank, a second gear is connected to the tooth end of the first gear in a meshed mode, a first rotating shaft is fixedly connected to the outer wall of the second gear, and a second rotating shaft is fixedly connected to the outer wall of the first rotating shaft. The outer wall of the first rotating shaft is rotationally connected to the outer wall of the shell, an opening and closing plate is fixedly connected to the outer wall of the first rotating shaft, a lead screw is fixedly connected to the outer wall of the crank, and a sliding frame is in threaded connection to the outer wall of the lead screw. The DR flat panel detector can be protected through the shell, collision is prevented, and impurities are prevented from entering the DR flat panel detector; when the crank is rotated, the opening and closing plate can be driven to rotate through gear transmission, the shell is closed and opened, the sliding frame is pushed to slide along the sliding rod, the cleaning brush is attached to the DR flat panel detector to slide to clean floating ash, and the cleaning operation is completed while the opening and closing plate is opened and closed.

A radiology department atlantoaxial joint shooting assist device relates to the technical field of medical auxiliary equipment, and comprises a head fixing mechanism, a supporting mechanism, a hanging part, a height adjusting mechanism and an angle adjusting mechanism, the head fixing mechanism is connected with the supporting mechanism through a hinge shaft, the right side of the supporting mechanism is connected with the hanging part, and the hanging part is connected with a flat panel detector. The device has the advantages that the problem that the examination efficiency is low during atlantoaxial joint examination in a hospital can be solved, in DR shooting, the device is adopted for assistance, the pitching-up and lowering angles of the head of a shot person can be remotely controlled according to shooting requirements, and the problem that atlantoaxial joints are difficult to shoot is solved.

The invention belongs to the field of display, and particularly relates to an array substrate and a manufacturing method thereof and a flat panel detector, the array substrate comprises a substrate, and a first metal layer, a first semiconductor layer, a second metal layer, a gate insulation layer and a third metal layer which are sequentially formed on the substrate, the first metal layer comprises a drain electrode and a lower electrode of a photodiode, and the third metal layer comprises a drain electrode and a lower electrode of the photodiode. The lower electrode is in conductive connection with the drain electrode, the first semiconductor layer comprises a first semiconductor part, the first semiconductor part is located on the side, away from the substrate, of the drain electrode, the second metal layer comprises a source electrode, the source electrode is located on the side, away from the substrate, of the first semiconductor part, and the third metal layer comprises a grid electrode. The grid electrode is overlapped with the first semiconductor part. The drain electrode, the first semiconductor part and the source electrode are sequentially stacked on the substrate, so that the occupied area of the thin film transistor is reduced, the photosensitive area of the photodiode is increased, and the detection sensitivity of the flat panel detector is further improved.

The invention discloses a fixed laminated battery CT detection device, and particularly relates to the technical field of fixed laminated battery CT detection, and the fixed laminated battery CT detection device comprises a ray detection mechanism and a to-be-detected battery clamping mechanism; the ray detection mechanism comprises an X-ray source and a flat panel detector; the to-be-tested battery clamping mechanism comprises a clamping sleeve, a supporting rod, a guide plate, a spring and a rotating shaft; the clamping sleeve is provided with a groove for embedding a battery to be tested, the clamping sleeve is rotatably installed on the supporting rod through the rotating shaft, the spring is sleeved on the rotating shaft, one end of the spring is fixed with the supporting rod, and the other end of the spring is fixed with the rotating shaft. The device can detect one end of each pole piece, so that the stacking flatness and the spacing arrangement condition of the pole pieces can be observed, and the quality of a laminated battery can be obtained in an auxiliary manner.

The utility model relates to the technical field of pipeline welding quality detection, and discloses a pipeline welding construction quality detection device which comprises a base, a linear guide rail, a sliding block and a connecting block, the linear guide rail, the sliding block and the connecting block are mounted on one side of the top end of the base, one end of the connecting block is fixedly connected with a rotating frame, and a rotating disc is arranged on one side of the top end of the rotating frame. A detection mechanism used for pipeline welding quality detection is arranged at the top end of the rotating disc and comprises a base plate located above the rotating disc, a sliding table is arranged at the top end of the base plate, one end of the sliding table is fixedly connected with a gear ring used for driving the sliding table to rotate, and transmission mechanisms are arranged on the two sides of the top end of the sliding table. The X-ray machine and the flat panel detector go deep into the pipeline welding seam to conduct nondestructive testing, all the driving mechanisms drive the detection mechanism to move in a multi-direction and multi-angle mode, all-direction detection of the pipeline welding seam is achieved, the detection range of the pipeline welding seam is effectively enlarged, and detection of the pipeline welding seams at different angles is achieved.

A method comprises: performing training of an initial machine model using a first dataset of a first digital detector to create a trained machine model; performing testing on the trained machine model using a second dataset of a second digital detector to create a tested machine model; and performing validation on the tested machine model using a third dataset of the second digital detector, wherein the training, the testing, and the validation are at a resolution of a single pixel corresponding to a single detector element of either the first digital detector or the second digital detector.

A detection panel and a flat panel detector. The detection panel comprises: a substrate (100); a thin-film transistor (200), located on the substrate (100), the thin-film transistor (200) comprising a gate layer (01), an active layer (03) and a source / drain layer (110); a photosensitive portion (400), located on the side of the thin-film transistor (200) facing away from the substrate (100), the photosensitive portion (400) comprising a bottom electrode (11), a PIN layer (12) and a top electrode (14) which are sequentially arranged facing away from the substrate (100), and the bottom electrode (11) being electrically connected to the thin-film transistor (200) by means of the source / drain layer (110); and at least one electrode layer (300), located between the bottom electrode (11) and the substrate (100), each electrode layer among the at least one electrode layer (300) and one of conductive layers within the thin-film transistor (200) being arranged on a same layer, the orthographic projections of the electrode layers on the substrate (100) entirely falling within the area range of the orthographic projection of the bottom electrode (11) on the substrate (100), at least one storage capacitor comprising a first storage capacitor being formed between the at least one electrode layer (300) and the bottom electrode (11), and a second storage capacitor being formed between the bottom electrode (11) and the top electrode (14).

The utility model relates to the field of power supply devices, in particular to a power supply box of a flat panel detector, which supplies power to the flat panel detector. The power supply box comprises a housing which is provided with one or more conductive holes used for installing a connecting piece; an input interface, a circuit portion and an output interface. At least one side surface of the shell is provided with a plurality of first strip-shaped structures and a plurality of second strip-shaped structures which extend along the length direction of the power supply box; the first strip-shaped structure and the second strip-shaped structure are convex or concave structures on the side surface of the shell and form the outer surface of the non-flat side surface of the shell; the width of the first strip-shaped structures is larger than that of the second strip-shaped structures, and at least one second strip-shaped structure is arranged between every two adjacent first strip-shaped structures. The power supply box of the flat panel detector has better safety and reliability.

The invention discloses a 2.5-dimensional X-RAY detection machine based on parallel processing of double flat panel detectors. The 2.5-dimensional X-RAY detection machine comprises a double-axis translation device, a product transmission device mounted on the double-axis translation device, an X-ray receiving device arranged above the product transmission device, and an X-ray emitting device arranged below the double-axis translation device. A double-inclined-plate fixed structure is adopted, redundant assemblies are simplified, the overall structure is simplified, the space occupancy rate of equipment is effectively reduced, the overall layout is more compact and exquisite, and a more flexible and efficient solution is provided for site planning and equipment deployment of industrial production.

The utility model discloses a copper pipe welding seam detection device which comprises a shielding room, a rack, a detection conveying line assembly, a flat panel detector 3, a detector driving assembly, a radiation source, a radiation source driving assembly and an electric cabinet, a feeding detection opening is formed in the shielding room, a lifting shielding door assembly is arranged on the feeding detection opening, and the rack is arranged in the shielding room. The detection conveying line assembly is arranged on the rack and used for receiving products to be detected, the flat panel detector 3 is arranged in the rack, the detector driving assembly is arranged on the rack and located above a detection conveying line, and the flat panel detector 3 is installed on the detector driving assembly and driven by the detector driving assembly to move and turn over. The radiation source is arranged in the rack, the radiation source driving assembly is arranged on the rack and located below the detection conveying line, and the radiation source is installed on the radiation source driving assembly. The device has the advantages of simple structure, reasonable design, capability of multi-angle dead-angle-free detection and the like.

The invention belongs to the technical field of electric power transmission line fitting crimping quality detection. The invention provides a double-unmanned-aerial-vehicle synchronous control method and system for line crimping fitting detection. Two unmanned aerial vehicles respectively receive a detection initial path and a time synchronization parameter of a ground control terminal; the two unmanned aerial vehicles fly according to respective detection initial paths and keep time synchronization according to the time synchronization parameters; after reaching a detection area, the first unmanned aerial vehicle is adjusted to a detection position, the second unmanned aerial vehicle is adjusted to a ray emission position, and the first unmanned aerial vehicle and the second unmanned aerial vehicle perform target point joint positioning through time difference positioning and direction finding positioning; the transmitter transmits rays to the flat panel detector, the flat panel detector receives a ray signal and converts the ray signal into an electric signal, and the electric signal is relayed by the second unmanned aerial vehicle and then transmitted back to the ground control terminal for line crimping fitting detection; according to the invention, automatic dynamic positioning of the target point and synchronous control of the double unmanned aerial vehicles are realized, and the detection efficiency, safety and reliability are improved.

A battery inspection apparatus comprises a bearing assembly, a ray source, and a flat panel detector; the bearing assembly is used for bearing a battery under test, the ray source is located at one end of the bearing assembly, and the direction in which a detection ray of the ray source is emitted faces the battery under test; the flat panel detector is located at the other end of the bearing assembly distant from the ray source, the flat panel detector is used for receiving a detection ray that is emitted by the ray source and penetrates through the battery under test, the flat panel detector comprises a scintillator layer, and the thickness of the scintillator layer is greater than a first preset thickness, so that the density resolution of the flat panel detector is less than 0.5%.

The present invention relates to the field of digital medical imaging technology, and discloses a flat-panel detector and medical imaging detection equipment. The flat-panel detector includes a substrate, which is divided into a plurality of detection units. Each detection unit includes a first absorption layer and a second absorption layer disposed on the substrate and stacked. The second absorption layer is located on a side of the first absorption layer facing away from the substrate, and the radiation energy level absorbed by the second absorption layer is lower than the radiation energy level absorbed by the first absorption layer. A voltage supply electrode structure is provided, and an output circuit electrically connected to the voltage supply electrode structure and configured to output a first detection signal from the first absorption layer and a second detection signal from the second absorption layer. The flat-panel detector includes a first absorption layer and a second absorption layer capable of absorbing radiation of different energies, enabling detection of both high-energy and low-energy radiation. The detector has good compatibility and can perform dual-energy silhouette detection in the same dual-energy radiation exposure, making it easy to use.

The embodiment of the invention discloses a detection substrate and a flat panel detector. The detection substrate comprises a substrate as well as a gate metal layer, a source-drain metal layer, a photoelectric conversion device and a bias voltage electrode layer which are sequentially stacked on the substrate, wherein the gate metal layer comprises a gate and a scanning line electrically connected with the gate; the source-drain metal layer comprises a first electrode, a second electrode and a first connecting part electrically connected with the second electrode; the photoelectric conversion device comprises a bottom electrode, a photoelectric conversion layer and a top electrode which are stacked in sequence, the bottom electrode is close to the substrate, and the bottom electrode is electrically connected with the first electrode; the bias voltage electrode layer comprises a bias voltage line and a first reading line which extend in the same direction and are arranged at an interval; the detection substrate further comprises a second connecting part arranged on the same layer as the bottom electrode, the first reading line is electrically connected with the second connecting part, and the second connecting part is electrically connected with the first connecting part.

The embodiment of the application provides a kind of detector panel and its preparation method, driving method, flat panel detector, detector panel includes: first control terminal receives first control signal;Second control terminal receives second control signal;Reading signal terminal receives reading signal;Detection module is electrically connected with first control terminal, converts optical signal into electrical signal and exports reading signal according to first control signal;Multiplexing unit is electrically connected with second control terminal, and according to second control signal, detection module and reading signal terminal are turned on;Wherein at least one reading signal terminal is electrically connected with multiple multiplexing units.The embodiment of the application is electrically connected with multiple multiplexing units on at least one reading signal terminal, reduces the number of reading signal terminal, leaves out space for laying other signal lines, prevents from affecting the bending performance of flat panel detector;Since reading signal terminal reduces, chip quantity reduces, circuit board structure is simple, production procedure reduces, and production cost reduces.

The control method, control device, and flat panel detector provided in this disclosure divide the shift register into cascaded groups, and couple different cascaded groups to different frame start signal lines and different clock signal lines. This allows each cascaded group to achieve different operating states in different reading modes. Furthermore, in the first reading mode, line-by-line scanning and reading can be achieved. In the second reading mode, multiple lines can be scanned and read simultaneously, thereby reducing reading time and increasing the acquisition frame rate.

A cover for a mini C-arm machine having a detector is designed to maintain a sterile field for a detector screen. The cover includes a panel having at least three integral sides, two being spaced-apart parallel to each other. The cover includes a pair of straps. One of the straps has an end portion fixed to one of the two parallel sides. The other strap has an end portion fixed to the other of the two parallel sides. The cover includes a hook-and-loop closure mechanism having a hooked portion and a looped portion. Each strap has a fixed end portion and a free, opposite end portion. The free end portion of one strap includes the hooked portion and the free end portion of the other strap includes the looped portion. Each closure portion is sized, when the closure portions are engaged, to retain the panel against the detector.

The invention discloses a method for realizing three-dimensional scanning through a binocular infrared camera and a C-shaped arm, and relates to the technical field of medical imaging equipment, and the method comprises the steps: S1, calibrating the three-dimensional coordinates of a theoretical isocenter O of the C-shaped arm in a coordinate system of the binocular infrared camera; s2, setting a starting angle, an ending angle and an equal-angle interval of scanning, planning an exposure sequence, and driving a C-shaped arm to start to move along a preset track; s3, in the scanning process, a closed-loop control signal used for maintaining the flat panel detector to do circular motion relative to the theoretical isocenter is generated; s4, collecting a two-dimensional projection image and recording a corresponding accurate angle value; and S5, performing three-dimensional image reconstruction through all the collected two-dimensional projection images and the recorded angle values thereof. According to the invention, invalid X-ray radiation agents are reduced fundamentally, and the reconstruction quality of the three-dimensional image is improved.

The present application provides a battery inspection device, and belongs to the technical field of batteries. The battery inspection device comprises a bearing assembly, an X-ray source, and a flat panel detector, the bearing assembly is used for bearing a battery under test; the X-ray source is used for irradiating X-rays to the battery under test on the bearing assembly; and the flat panel detector and the X-ray source are each located on one side of the bearing assembly, and the flat panel detector is used for receiving rays that are emitted by the X-ray source and penetrate through the battery under test.