116 results about "X-ray" patented technology

The invention discloses a GIS (Gas Insulated Switchgear) tiny defect detection method and system based on X-ray multi-effect fusion, and the method comprises the following steps: firstly, exciting a latent defect in a GIS to generate partial discharge by using an X-ray photoionization effect, detecting a discharge signal by using an ultrahigh frequency method and an ultrasonic method, and after the discharge signal is processed by a noise reduction model, carrying out noise reduction on the discharge signal; and respectively obtaining an ultrahigh-frequency discharge phase spectrogram and an ultrasonic discharge phase spectrogram. Then, the imaging plate is placed on the back face of the GIS, digital DR imaging is carried out through X rays, and an X-ray image is obtained; the ultrahigh frequency discharge phase spectrogram and the ultrasonic discharge phase spectrogram are fused after being denoised, an X-ray image is combined to establish a GIS health state diagnosis model, and reliable defect detection is carried out on the GIS according to the evaluation score of the diagnosis model. According to the method, multiple effects of X-rays are fused, so that smaller GIS latent defects can be found, the detection sensitivity is remarkably improved, and the problem that the traditional method is difficult to identify the tiny latent defects is solved.

The invention belongs to the field of cable eccentricity detection, and particularly relates to a cable eccentricity detection method and system based on X rays. The method comprises the following steps: calculating a gradient magnitude diagram and a gradient direction diagram through an X-ray image of a cable, screening a point with the local maximum gradient magnitude and low neighborhood divergence as a contour starting point, performing contour tracking to generate a contour point set, and selecting a next contour point based on a tangential prediction direction; performing ellipse fitting on the contour point set to obtain a geometric center, long and short axis parameters and a root-mean-square error of a fitting ellipse, dividing the fitting ellipse into an inner candidate ellipse and an outer candidate ellipse according to a long axis, and matching the inner candidate ellipse meeting the condition for each outer candidate ellipse; and screening out an outer candidate ellipse and an inner candidate ellipse which meet conditions from the candidate pairs, and calculating the eccentricity of the cable to be measured based on geometric center coordinates of the outer candidate ellipse and the inner candidate ellipse. According to the invention, the accuracy and reliability of cable eccentricity measurement results can be improved.

The invention discloses an X-ray detection device and method for detecting a PCB, and the device comprises a housing, and an X-ray emission source transmission system, an X-ray detector transmission system and a PCB conveying system which are disposed in the housing. The X-ray emission source transmission system is high in X-ray emission source transmission speed, high in precision and small in vibration quantity, the X-ray detector transmission system is high in X-ray detector transmission speed, high in precision and small in vibration quantity, the PCB conveying system can automatically input and output PCBs, the height of the PCBs can be automatically adjusted, and the PCB conveying efficiency is improved. The PCB conveying system can adapt to PCBs with different width sizes, and can be prevented from blocking X rays.

The invention relates to the technical field of PCB (Printed Circuit Board) blind hole defect detection, and discloses an X-ray-based PCB blind hole defect detection method, which comprises the following steps of: irradiating a PCB by using X rays, performing data acquisition by using CT (Computed Tomography) projection, establishing an initial image, reconstructing the initial image by using filtered back projection to obtain a reconstructed image, and detecting the blind hole defect of the PCB according to the reconstructed image. According to the blind hole defect detection method based on the deep residual network, through the double-flow neural network architecture constructed on the basis of the deep residual network, geometric features and material features are comprehensively utilized, the blind hole defect detection accuracy is improved, the blind hole defect detection accuracy is improved, and the blind hole defect detection accuracy is improved. The PCB blind hole defect detection device can comprehensively and accurately detect and classify various defects of PCB blind holes, such as cracks, wrinkles, recesses and filling holes, improves the efficiency and accuracy of defect detection, is helpful for timely finding quality problems in the PCB production process, and guarantees the product quality.

X-ray imaging systems containing a quick disconnect feature for the X-ray head containing the X-ray source are described. The X-ray imaging systems comprise an X-ray head containing an X-ray source and supporting electronics including high-voltage electronics, a control device, an arm coupled to the X-ray head, and low voltage cabling disposed within the arm and configured to connect the supporting electronics to the control device, the electrical cabling comprising a disconnect between the supporting electronics and the control device, and where the X-ray head is removably attached to the arm so that when the electrical cabling is disconnected, the X-ray head can be removed from the X-ray system. These X-ray imaging systems offer an easier method for removing the X-ray head, such as for replacement, servicing, and / or repair. Other embodiments are described.

The invention relates to the technical field of detection, in particular to a method for automatically detecting blockage of a cooling plate through X-rays, which comprises the following steps: inputting an X-ray image, and extracting a pipeline wall contour area and a flow channel contour area in the image; eliminating a pipeline wall interference area based on the pipeline wall contour area to obtain a pure pipeline wall contour area; fusing the pure pipeline wall contour area and the flow channel contour area to obtain a non-blocking area, and calculating a pipeline group area and a blocking area based on the non-blocking area; according to the method, the position of the pipeline can be automatically positioned, frame selection of the ROI area is not needed, CNC programming steps are simplified, the method is not affected by the width of the flow channel of the pipeline, blockage can be accurately recognized, the defect can be accurately positioned even if part of interference exists, and the problems that the position of the pipeline is uncertain through manual observation of the X-ray image, and the detection accuracy is high are solved. The method is easy to be influenced by the width of a pipeline flow channel, and pipeline blockage identification is inaccurate.

The nick balloon catheter comprises a catheter body, a balloon and a catheter seat, the catheter body comprises an inner tube and an outer tube, the outer tube is arranged on the outer side of the inner tube in a sleeving mode, the far end of the outer tube is connected with the near end of the balloon, and the near end of the outer tube is connected with the catheter seat; the far end of the inner tube penetrates out of the far end of the balloon, a first nicking piece and a guide wire are arranged in an inner cavity of the inner tube in a penetrating mode, and the first nicking piece comprises a first developing piece capable of developing under X rays; the inner tube comprises a nicking piece cavity and a guide wire cavity, the nicking piece cavity and the guide wire cavity extend in the length direction of the inner tube in a penetrating mode, the nicking piece cavity and the guide wire cavity are arranged in parallel, and the first nicking piece penetrates out of the far end of the inner tube through the nicking piece cavity. According to the nicking balloon catheter, the first nicking piece is arranged to cut the seriously narrow lesion position, the problem that the balloon cannot reach the seriously narrow lesion position is solved, and the application range of the nicking balloon catheter is wider.

The invention provides a point distribution method for measuring residual stress of a bending forming pipe by using X rays, and relates to the technical field of residual stress detection. The method specifically comprises the steps that material mechanical property parameters of the bending forming pipe are obtained, and residual stress sensitivity of the bending forming pipe material is evaluated; according to the working environment of the bending forming pipe, the safety level of the bending forming pipe is evaluated by establishing a two-dimensional risk evaluation matrix; evaluating the time cost and the economic cost of measuring the residual stress of the bending forming pipe by using X rays, and determining the number of detection points in the pre-calculation of the bending forming pipe according to the evaluation result; based on the residual stress sensitivity and the safety level of the bending forming pipe, the number of detection points of the bending forming pipe is calculated; and based on the total number of the detection points and the number of the detection points in the prediction, arranging the detection points on the bending forming pipe by adopting a differential point distribution density strategy. According to the method, the stress detection points with different densities are reasonably arranged, so that the targeting and high efficiency of the residual stress detection of the bending forming elbow pipe are realized.

The invention provides an esophageal stenosis dilatation balloon which comprises a dilatation tube mechanism, and a guide-in assembly and a suction tube are arranged in the dilatation tube mechanism; the balloon main body is arranged on the outer surface wall of the expansion tube mechanism, the balloon main body is communicated with the guide-in assembly, a contrast agent can be injected through the injection device to expand the balloon main body, the expansion diameter is matched with the injection pressure, repeated suction can be carried out to gradually expand the balloon main body to a target diameter, and marking lines visible under X rays are arranged at the two ends of the balloon main body. The invention relates to the technical field of medical instruments, in particular to a balloon which is convenient for real-time observation of dilatation during operation and capable of accurately controlling the dilatation diameter of a balloon main body by injecting a contrast agent and utilizing the matching relation between the contrast agent and pressure, avoiding blind operation and improving safety. Suction and injection can be repeatedly carried out, and progressive and controllable expansion is achieved.

The invention belongs to the technical field of flexible ray protective clothing, and discloses medical flexible ray shielding protective clothing and a preparation method thereof. A medical flexible ray shielding protective garment comprises a shielding material, flexible rubber and a garment material, the shielding material is equally distributed in small capsule cabins of the flexible rubber, and the small capsule cabins are distributed in the thickness direction of the flexible rubber for 3-10 times; the clothing material is attached to the flexible rubber loaded with the shielding material to manufacture the clothing. The novel integrated ray protection suit provided by the invention adopts a lead-free shielding material, has a relatively good shielding effect on gamma rays and X rays, is soft in material, light in weight and non-toxic and harmless to a human body, can be widely applied to military industry, medical science, other ray protection laboratories and the like, and has a wide application value.

The invention relates to the technical field of position calibration, and provides a position calibration improved structure of an X fluorescence spectrometer, which comprises a spectrometer box, the bottom of the spectrometer box is fixedly connected with a base, the top of the spectrometer box is provided with a spectrum cavity, the outer surface of the spectrum cavity is provided with a visual sensor, and the visual sensor is connected with the base. Arc-shaped rails are symmetrically arranged on the two sides of the spectrometer box, the outer surfaces of the arc-shaped rails are slidably connected with isolation hoods, a sliding-out groove is formed in the bottom of the spectrum cavity, and a side groove is further formed in the inner wall of the spectrum cavity; the positioning unit is arranged at the bottom of the spectrum cavity and used for adjusting the position, the excitation unit is located above the positioning unit and emits X fluorescence, a material needing qualitative and quantitative treatment is put into the positioning unit, the positioning unit can drive the material to move to the position under the excitation unit, and the sample is bombarded by X rays to excite characteristic fluorescence; and non-destructive detection of qualitative and quantitative analysis of elements is realized.

The utility model discloses an iron ore value analysis device which comprises a grade analyzer which comprises a gun head and a handle, and the gun head is fixed at the upper end of the handle; the first protection assembly comprises first fixing plates, a first connecting shaft, a first torsional spring, a first protection plate and a limiting column, the first fixing plates are fixed to the middle of the lower surface of the gun head and located on the side edge of the top of the handle, the first connecting shaft is fixed between the first fixing plates, and the first torsional spring is connected to the first connecting shaft in a sleeving mode; one end of the limiting column is fixed to the lower end of the side edge of the first protection plate, and the other end of the limiting column is attached to the handle. The utility model relates to an iron ore grade analyzer, and aims to solve the problem that when the iron ore grade analyzer is used, an operator holds a handle, presses a button and starts an X-ray, and the X-ray is a radiation source, so that the risk of radiation exposure to the operator and the surrounding environment is possibly caused if the X-ray is emitted due to misoperation.

The utility model discloses a rejection mechanism, belongs to the technical field of production equipment, and particularly relates to a high-speed rejection mechanism for NG rejection, which comprises an X-ray NG judgment mechanism, a PLC (programmable logic controller), a high-frequency electromagnetic valve and a high-speed cylinder. The high-frequency electromagnetic valve and the high-speed air cylinder are both installed on the support, the X-ray NG judging mechanism is electrically connected with the PLC, the X-ray NG judging mechanism judges NG of an object irradiated by X rays and transmits signals to the PLC, the PLC is electrically connected with the high-frequency electromagnetic valve, the PLC transmits the signals to the high-frequency electromagnetic valve, and the high-speed air cylinder is connected with the high-frequency electromagnetic valve. According to the high-speed removing mechanism, the short-stroke high-speed air cylinder is matched with the high-frequency electromagnetic valve, through the special mechanical structure design, NG products are accurately and rapidly removed, and meanwhile accurate removing can be ensured by moving the removing position up and down and back and forth according to different products.

The application discloses a force-ultraviolet-X ray three-mode excited doped organic room-temperature phosphorescent material and a preparation method and application thereof. The doped organic room-temperature phosphorescent material comprises a guest compound and a host compound, and the host compound comprises halogenated benzophenone or unsubstituted benzophenone. The doped organic room-temperature phosphorescent material provided by the application can generate stable phosphorescent emission under external force stimulation, ultraviolet light and X ray excitation. Moreover, the preparation method is simple, the cost is low, the excitation mode is various, and the doped organic room-temperature phosphorescent material can emit light in the condition of no light source. The doped organic room-temperature phosphorescent material provided by the application adopts pure organic material, is not doped with metal, the structure is convenient to modify, is more green and economical, and is more in line with the development trend of green chemistry. The material can be used in the field of force-induced light emission and can be applied to the field of X ray imaging.

The invention discloses a portable high-power ray source, which belongs to the technical field of X-rays, and comprises a power supply, an MCU (Microprogrammed Control Unit) control system, an inverter circuit and a high-voltage generator, the power supply comprises a storage battery and a super capacitor bank, and the MCU control system is respectively connected with the storage battery, the super capacitor bank, the inverter circuit and the high-voltage generator. The storage battery and the super capacitor are connected in series to transmit low-voltage large current to the inverter circuit, the inverter circuit converts the received low-voltage large current into high-voltage low current under the control of the MCU control system and transmits the high-voltage low current to the high-voltage generator, and the high-voltage generator outputs high-power X-rays under the control of the MCU control system. The device has higher transmitting power, equipment operation is more stable, and the service life of the storage battery is longer.

The utility model provides X-ray scanning type coating detection equipment which comprises a machine frame and a conveying mechanism, an X-ray detection mechanism is arranged above the conveying mechanism, the bottom end of the X-ray detection mechanism is fixedly connected to the machine frame, a centering mechanism is arranged at one end above the machine frame, and a material pushing mechanism is arranged at the other end above the machine frame. When a coating object needs to be subjected to coating detection, the coating object is firstly placed on the conveying mechanism, the two material guide plates can center and straighten the position of the coating object in the conveying process of the coating object, and when the coating object passes through the lower portion of the X-ray detection mechanism, X rays can penetrate through the coating object, so that the coating object is subjected to coating detection. The X-ray detection device is used for detecting the coating quality, the thickness, the defect and the like of the coating object, if the coating object is judged to have the defect, the air cylinder is started to drive the push plate to push the unqualified coating object, so that the unqualified coating object falls into the material receiving frame, and the detection device has the functions of X-ray detection and automatic rejection.

To provide an X-ray inspection device capable of suppressing a temperature change in an X-ray detection section.SOLUTION: An X-ray inspection device 1 comprises: a conveyance section 5 for conveying an article G; an X-ray irradiation section 6 for applying X rays to the article G that is conveyed by the conveyance section 5; an X-ray detection section 7 for detecting X rays transmitted through the article G; a control section 10 for determining whether the article G is a non-conforming article on the basis of an X-ray transmission image generated based on X rays detected by the X-ray detection section 7, and distributing the article G determined as a non-conforming article to the outside of a production line by a distribution device disposed downstream from an inspection area R in which inspection of the article G by X rays is performed; a casing 2 in which the inspection area R is provided inside; a door 2a allowing the casing 2 to be opened or closed; a cool air machine 40 that is mounted to the door 2a and supplies cool air cooled by heat exchange; and air paths 50, 61, 62 for guiding cool air supplied from the cool air machine 40 to the X-ray detection section 7.SELECTED DRAWING: Figure 5

The application discloses a cable sheath aging evaluation method and related device, comprising: intercepting a test sample from a cable sheath to be evaluated, wiping the test sample with alcohol and keeping it still; testing the test sample by using a RIGAKU-X ray polycrystalline diffractometer, recording an X ray diffraction pattern of the test sample, obtaining two crystalline diffraction peak intensities D fi and D si of a diffraction curve and angles θ fi and θ si corresponding to the two peaks according to the X ray diffraction pattern; substituting the two crystalline diffraction peak intensities D fi and D si and the angles θ fi and θ si corresponding to the two peaks into a diffraction evaluation factor calculation formula to obtain a diffraction evaluation factor; and analyzing an aging state of the cable sheath to be evaluated based on the diffraction evaluation factor. The application can conveniently, efficiently and safely detect and evaluate the aging degree of a 110kV XLPE cable sheath, and avoids damage and grounding faults caused by serious aging of the cable sheath.

An X-ray imaging apparatus 100 comprises an X-ray imaging unit 3 including an X-ray irradiation unit 31 that irradiates X-rays and an X-ray detection unit 32 that detects X rays; a tabletop unit 1 on which a subject 9 is placed and which is movable relative to the X-ray imaging unit 3; a tabletop unit-installed part 2 that is provided on the tabletop unit 1 and includes a material with a lower X-ray transmittance than a portion of the tabletop unit 1 where the subject 9 is placed; a notification unit 6; and a control unit 5 that performs control to cause the notification unit 6 to provide a notification that the tabletop unit-installed part 2 is interfering with an irradiation field, based on irradiation field range information related to a range of an irradiation field of X-rays irradiated from the X-ray irradiation unit 31 and member position information related to a position of the tabletop unit-installed part 2.

The utility model relates to cone shaped beam X ray source technical field discloses a cone shaped beam X ray source filament heating circuit, can obtain stable X ray output, have certain anti -interference ability, can guarantee under high frequency can work normally, including core control module, main control signal input circuit, enable control circuit, drive and power switch module, feedback and current sampling module, filament output and switching module, power supply circuit, relay FK2 and relay FK3, core control module is connected with main control signal input circuit, drive and power switch module respectively, power supply circuit is connected with enable control circuit, filament output and switching module, drive and power switch module respectively, drive and power switch module connect feedback and current sampling module, filament output and switching module, and enable control circuit connects control main control signal input circuit, and enable control circuit passes through relay FK2 and relay FK3 control connection main control signal input circuit.

The invention discloses nondestructive flaw detection equipment for a welding seam of a pressure vessel, relates to the technical field of flaw detection equipment, takes an RT mode as a basic mode for nondestructive flaw detection of the welding seam of the pressure vessel, and mainly aims at optimization of a linear distance and an emitting direction of an X ray relative to the welding seam. In particular, a first-order displacement sensor and a second-order sensor which are arranged along four-direction positions on a joint disc are taken as a basis, and the mounting modes of the first-order displacement sensor and the second-order displacement sensor are limited to avoid movement interference, so that the purpose of preliminarily obtaining the distance between an RT detection probe and a welding seam structural surface is achieved; the distance between each electric contact and a welding seam structure surface is changed in an electric sensing mode so as to maintain the setting angle of the X-ray relative to the welding seam structure in the RT detection probe, specifically, the setting angle is represented by the pushing stroke Tc and the linear distance TL, the relative distance of the RT detection probe is readjusted by taking the pushing stroke Tc and the linear distance TL as the key, and the radiation intensity of the X-ray is adjusted. And the accuracy of detection data is indirectly maintained.

The utility model discloses a device for testing the focus of an X-ray bulb tube, which comprises a support base and a test support, the test support is fixed on the support base, the height and the angle of the test support can be adjusted, a dental film base is arranged on the test support, a handle is arranged on the dental film base, and the test support is fixed on the support base. A height fixing knob is arranged on one side of the test bracket; the slit camera is placed on an X-ray path; the dental film is positioned on the dental film base; a computer; the X-ray image processing system has the advantages that by means of optimized hardware design and advanced software control, the aims of being efficient, accurate, easy to use, high in adaptability and high in cost effectiveness are achieved, and the X-ray image processing system has wide application prospects and market value.

The application discloses a flow field structure non-interference measurement system. The system comprises at least two imaging assemblies, the imaging assembly comprising a ray output structure for relative arrangement and outputting X rays and a detector for receiving the X rays passing through a flow field to be measured to obtain projection data; the at least two imaging assemblies are distributed on at least two groups of edges of a virtual polygon, and each group of edges is distributed oppositely; the imaging assembly is used for obtaining the projection data of the flow field to be measured arranged inside the virtual polygon; and a processor is used for controlling the at least two imaging assemblies to simultaneously perform X ray scanning on the flow field to be measured to obtain at least two groups of projection data, and performing image reconstruction on the at least two groups of projection images to obtain a target image of the flow field to be measured. The embodiment of the application can reduce the interference on dynamic imaging of the measured flow field, and realize instantaneous imaging of the dynamic evolution structure of the multiphase flow field.

X-ray sources emit X-rays into an examination region along different projection views. An X-ray detector array detects the X-rays emitted by the X-ray sources after passing through the examination region. X-ray imaging data are acquired by cycling through the X-ray sources with each step of the cycle including: switching an active X ray source on to emit X-rays and the other X ray sources off to not emit X rays, and acquiring X ray imaging data along the projection view corresponding to the active X-ray source that is switched on. Tomosynthesis image reconstruction is performed on the X ray imaging data to generate at least one volumetric image. A time sequence of spatially aligned images is produced from the time sequence of volumetric images. A perfusion image and / or a ventilation image is generated based on voxel intensity variation over time of the time sequence of spatially aligned images.

The invention discloses a lightweight gamma ray and X ray shielding material and a preparation method thereof, and belongs to the technical field of ray protection materials. The invention aims to solve the problems that in the prior art, Bi2O3 and Gd2O3 cannot have a synergistic effect, the compatibility of Bi2O3 and Gd2O3 with an organic matrix cannot be improved, and a ray shielding material with light weight, broadband efficient shielding and excellent mechanical properties is difficult to prepare. The shielding material is formed by compounding a base material and a functional filler, and the functional filler is a Bi2O3 and Gd2O3 composite protective particle. The method comprises the following steps: 1, preparing Bi2O3 and Gd2O3 composite protective particles; and 2, preparing the shielding material. The invention is used for the lightweight gamma ray and X ray shielding material and the preparation thereof.

The utility model discloses a pinhole detector for detecting material stress change, which relates to the technical field of material stress detection and comprises a shell and a cover plate, a mainboard, a TFT (thin film transistor) board and a read-write board are arranged in the shell, the mainboard is in signal connection with the TFT board and the read-write board, the TFT board is used for converting X-rays into analog electric signals, and the TFT board is used for converting X-rays into analog electric signals. The read-write board is used for converting an analog signal into a digital signal; the cover plate is arranged on the shell, the cover plate is provided with a placement area, after the cover plate is installed on the shell, the placement area is located over the TFT plate, a through hole is formed in the middle of the placement area, and the through hole is used for X-rays to penetrate through a product to be tested to form diffraction and then pass through so that the rays can be distributed on the TFT plate. According to the small hole detector for detecting the stress change of the material, through the through hole formed in the placement area, it is guaranteed that X rays penetrate through the product to be tested and then directly hit on a TFT plate, product imaging is clearer, slight change can be found more easily, and the stress detection precision and the imaging definition can be improved.

The invention discloses a bone age detection device and method, and relates to the technical field of bone age detection.The device comprises a solid sound conducting pad bracelet, an ultrasonic function module and a forearm fixing and position adjusting module; the ultrasonic function module comprises an ultrasonic image processing system and two ultrasonic probes; the ultrasonic image processing system is used for obtaining the maximum value of the transverse diameter of the ossification center and the maximum value of the transverse diameter of the epiphysis according to the ultrasonic data; according to the maximum value of the transverse diameter of the ossification center and the maximum value of the transverse diameter of the epiphysis, the ultrasonic epiphysis ossification rate is calculated; and comparing the ultrasonic epiphyseal ossification rate with the standard characteristic data to obtain the age corresponding to the ultrasonic epiphyseal ossification rate. According to the method, the bone age is detected in an ultrasonic mode, so that radioactive X-rays are prevented from being used, meanwhile, the calculated ultrasonic epiphyseal ossification rate is compared with the standard characteristic data, the corresponding age is obtained, and the objectivity and accuracy of bone age detection are guaranteed.

The invention discloses a standard CT value calculation method and detection system based on ray transmission intensity, and the method comprises the following steps: S1, transmitting an X ray, and obtaining an incident intensity value Ic and a transmission intensity value Ix of the X ray to a scanned object; s2, an incidence correction value I0 of the incidence intensity value Ic is calculated according to a correction factor Nk, and the correction factor Nk is a correction factor of the intensity meter; s3, calculating a transmission correction value I of the transmission intensity value Ix according to the correction factor Nk; and S4, calculating a standard reference CT value CTs according to the I0 and the I. The detection system comprises a memory, an emission unit, a first calculation unit, a second calculation unit, a third calculation unit, a scanning object and an intensity meter. Compared with the prior art, the calculation method of the reference CT value is established based on the X-ray transmission intensity theory, and a relatively accurate CT value detection result of the CT machine is calculated by adopting a certain mathematical processing method. And secondly, the automation degree is high.

The utility model relates to the technical field of construction material detection, and discloses a construction project cost construction material detection device which comprises a conveying belt assembly, a double-foot support assembly is arranged at the center of the top surface of the conveying belt assembly, and an X-ray flaw detector penetrates through the center of the top surface of the double-foot support assembly. Material clamping assemblies are arranged on the left side and the right side, close to the front end, of the center of the top surface of the conveying belt assembly correspondingly. The pressure thickness gauge is reasonable in structure, and a nondestructive inspection method for discovering defects in a material by utilizing the characteristics that X rays penetrate through the material and are attenuated in the material is adopted by the X-ray inspection machine; the pressure thickness gauge is an instrument for measuring the thickness of the material and the object; the X-ray flaw detection machine is lifted above the conveying belt assembly in cooperation with the double-foot support assembly, flaw detection is carried out on materials conveyed and passing through the bottom, and data can be transmitted to the signal transmitter according to the detected result.