187 results about "X-ray" patented technology

The invention discloses an automatic fine ore sorting method and system based on XRT (X ray tomography) and hyperspectrum, which are used for realizing comprehensive fusion of ore surface and internal information by combining X-ray tomography and hyperspectral imaging technologies so as to improve the recognition precision and the sorting efficiency. XRT is used for extracting the internal structure and density characteristics of the ore, hyperspectral imaging is used for identifying the mineral composition characteristics of the ore surface, and information complementation is achieved. The system adopts a multi-modal convolutional neural network to perform independent feature extraction on XRT and hyperspectral data, and the extracted features are fused through a deep residual network. And the fused features are processed by a cross-modal attention mechanism to ensure that key features of different modals are fully integrated and optimized, and finally high-precision ore classification and sorting are realized. According to the method, the limitation of a single data source on feature extraction is overcome, the ore recognition and sorting precision is greatly improved, and the refined and intelligent development of ore sorting is promoted.

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.

A calibration assembly, including: a base; and a plurality of calibration wires dispersedly connected to the base. An absorption capacity of the calibration wire for X rays is greater than that of the base for X rays. Through a specific structure design of a plurality of calibration wires in the calibration assembly, the calibration wires are dispersedly connected to the base, and taking advantage of the characteristics that the absorption capacity of the calibration wire for X rays is greater than that of the base for X rays, the calibration wires are applied to the calibration phantom, and the calibration phantom is scanned in the scanning system. By continuously adjusting the geometric parameter values in the imaging method, the optimal geometric parameter values that are closest to the real scanning system structure may be obtained, thereby improving the imaging effect of the scanning system.

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 present application provides a respiration feature extraction method based on body surface significance analysis, including: establishing a body surface voxel model of chest and abdomen respiration motion, which includes acquisition of point cloud information, generation of the voxel model and extraction of respiration motion features; establishing a significance evaluation function by performing significance analysis on different regions of a body surface, and selecting the body surface region with high correlation with tumor motion based on the evaluation function; and performing voxelization on the body surface region, and obtaining effective one-dimensional characterization information of the body surface region using a local linear embedding dimension reduction algorithm. Compared with the prior art, the method avoids an influence of body-surface redundant motion information on precision of the association model, and compared with a PCC method, the method can avoid harm to the human body caused by continuous irradiation of X rays.

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.

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 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 discloses movable dual-ray radiation protection equipment, and relates to the technical field of radiation protection. In order to enable the movable radiation protection equipment to effectively protect X-rays and gamma-rays, the invention provides a radiation protection device for the X-rays and the gamma-rays. The lead glass specifically comprises a frame structure composed of a plurality of first lead plates and a plurality of second lead plates, grooves are formed in the outer walls of the tops of the first lead plates and the second lead plates respectively, door frame type lead glass and a plurality of pieces of side lead glass are arranged on the inner walls of the grooves, and top lead glass is arranged on the outer walls of the tops of the side lead glass and the door frame type lead glass. Door shaft mounting grooves are formed in the left sides of the surfaces where the door frame type lead glass and the first lead plate are located; and door shafts are rotationally connected to the inner walls of the door shaft mounting grooves. The X-ray radiation protection device can effectively protect gamma rays and X rays, is more comprehensive than a conventional radiation protection article only aiming at the X rays, and meanwhile, an accompanying person can observe the condition of a patient without limitation, and the radiation safety of the accompanying person can be guaranteed to the maximum extent.

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 discloses a multi-parameter fusion ore comprehensive screening method and device, and relates to the technical field of ore screening. The method comprises the following steps: acquiring a color image of a target ore, inputting the color image into an ore screening model, and judging the ore type of the target ore; selecting a detection scheme of the component content of the target ore according to the ore type of the target ore, and modeling the target ore through X rays according to the detection scheme to obtain a component content model; component analysis is conducted on the component content model to obtain the component content of the target ore, and the ore screening mode is determined according to the component content of the target ore. The ore screening cost can be effectively reduced by judging the ore types, the ore detection accuracy can be improved by analyzing the components in the ore through multi-angle X-rays, different screening modes are determined according to different analysis results, screening errors can be reduced while the efficiency is ensured, and the screening accuracy is improved. Therefore, the cost of the subsequent treatment process is correspondingly reduced.

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 provides a beam limiting device and an X-ray machine. The beam limiting device comprises a shell, the shell is provided with a first outer surface and a second outer surface which are oppositely arranged, the first outer surface is provided with an X-ray inlet, and the second outer surface is provided with an X-ray outlet; a lead page layer is arranged in the shell, an opening of a movable lead page of the lead page layer forms a lead window, and X-rays are transmitted through the X-ray inlet, the lead window and the X-ray outlet in sequence; and a dosimeter is arranged close to the X-ray outlet and is used for measuring the exposure dose of the X-rays. According to the beam limiting device, the dosimeter is arranged in the beam limiting device, so that the exposure dose of X rays can be monitored in real time, instant dose feedback is provided for doctors and technicians, overexposure is avoided in advance by judging whether the instant dose accords with an early-stage preset value or not, and extra radiation of a patient is reduced while a clear image is obtained.

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.

The invention discloses an X-ray high-precision control method and system based on a BP neural network. The method comprises the following steps: creating a BP neural network deep learning model; the CT ray source subsystem generates a plurality of pieces of X-ray control system response delay sample data; training a BP neural network deep learning model by using the sample data; deploying the trained BP neural network deep learning model to a CT ray source subsystem; when the X-ray dose is ready to change, pre-inputting the voltage and current parameters of the current stage and the voltage and current parameters of the next stage into a BP neural network deep learning model, and reasoning response delay duration by the BP neural network deep learning model; according to the response delay duration output by the BP neural network deep learning model, the voltage and current of the next stage are input into the CT ray source subsystem in advance according to the response delay duration. The technical problem that in the prior art, when an X-ray source subsystem of a CT system controls X rays, system response delay exists is solved.

The present application relates to a kind of X-ray nondestructive testing automatic auxiliary alignment system and method, belong to measurement technical field.The present application includes: X ray source (1), auxiliary positioning laser lamp (2), visible light camera (3), auxiliary positioning mark paste (4), power module (5), object table (6) and flat panel detector (7).The present application is combined with automatic control and computer image processing technology, "G" shape graphic information is rich, can realize the calculation of multiple axis offset, simplifies the complexity of auxiliary tool in automatic auxiliary alignment, can play an important role in nondestructive testing.

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 invention discloses a serial crystallography experimental device based on a conveyor belt technology. The device comprises an angle measuring head end, a bottom film end and a crystallization plate storage disc, an angle measuring head groove is formed in the bottom end of the angle measuring head end and is used for being matched with an angle measuring head base on a synchrotron radiation beam line station; the top end of the angle measuring head end is provided with two angle measuring head end supporting rods used for being matched with the bearing short rods, and an angle measuring head end waste liquid tank used for collecting waste liquid irradiated by X rays. The bottom film end is assembled with the crystallization plate storage disc and is used for supporting and turning over the crystallization plate storage disc; in an experiment, a crystallization plate storage disc provided with a sitting drop in-situ crystallization plate is assembled on the bottom film end, and a low background scattering film on the back surface of the sitting drop in-situ crystallization plate is connected with a bearing short rod through an adhesive film to form a conveyor belt film; when the bearing short rod is driven by the motor to convey a sample to the angle measuring head end, the conveying belt film is torn down, diffraction data collection is carried out, and waste sample liquid drops are extruded out, flow down along with the angle measuring head end supporting rod and are converged into the waste liquid tank.

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.