16 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 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 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 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.

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.

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.

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.

An FPD navigation device includes: an image acquisition unit that acquires a first image and a second image from an FPD, the first image including an image of a target blood vessel captured at a first position, the second image including an image of the target blood vessel captured at a second position different from the first position, the FPD being a flat panel detector; a position information acquisition unit that acquires position information of the target blood vessel based on the first image and the second image, position information of the first position, and position information of the second position; and a recommended range output unit that outputs a recommended FPD capturing position range indicating a range of a capturing position of the FPD recommended for acquiring the image of the target blood vessel based on the position information of the target blood vessel.

The present application provides a method, device, equipment, medium and flat panel detector for adjusting the phase deviation of a data port. The method includes determining a target device and configuring a plurality of adjustment parameters for the target device; traversing the plurality of adjustment parameters to obtain the acquisition data output by the target device based on each adjustment parameter; obtaining the channel signal values and / or channel error rates of all readout channels in each acquisition data under each adjustment parameter, so as to determine corresponding timing alignment candidate parameters for the readout channels among all adjustment parameters based on the channel signal values and / or channel error rates; obtaining timing alignment parameters based on the timing alignment candidate parameters and configuring the timing alignment parameters to the corresponding readout channels to adjust the phase deviation of the data port of the target device. The present application can effectively adjust the phase deviation of the data port, ensure the alignment of data and clock timings, make the device accurately acquire data, and provide technical and cost guarantees for the effective application of various devices.

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.

The utility model discloses copper pipe weld joint detection equipment includes shielded room, frame, rotary type feeding and discharging assembly, flat panel detector, detector drive assembly, ray source, ray source drive assembly and electric cabinet, is equipped with the feed detection port on the shielded room, is equipped with the lifting shielded door assembly on the feed detection port, and the frame sets up in the shielded room, and the rotary type feeding and discharging assembly sets up on the frame and is used for rotary type feeding and discharging, and the flat panel detector sets up in the frame, and the detector drive assembly sets up on the frame and is located rotary type feeding and discharging assembly top, and the flat panel detector installs on the detector drive assembly and detector drive assembly drives flat panel detector displacement and turns over, and the ray source sets up in the frame. The utility model has can automatic feeding and discharging, simple structure, reasonable in design can multi -angle dead angle detection and so on advantage.

The invention relates to an automatic quality control device for a gamma knife. The device comprises a base, a die body assembly and a rotation driving assembly capable of driving the die body assembly to rotate, the die body assembly is arranged on the base and can rotate relative to the base, the die body assembly comprises a die body main body, a flat panel detector, a driving shaft and a steel ball, a mounting groove is formed in the middle of the die body main body, and the flat panel detector is embedded in the mounting groove; a plurality of mounting holes are formed in the front end of the die main body, the steel balls are correspondingly arranged in the mounting holes one by one, an end cover is arranged at the front end of the die main body, a driving shaft is arranged at the rear end of the die main body, and the die main body is connected with the rotary driving assembly through the driving shaft. According to the invention, the efficiency and reliability of quality control work are greatly improved, and the safety and accuracy of gamma knife treatment are guaranteed.