14 results about "Cathode ray" patented technology

This invention relates to a cold cathode X-ray inspection system and method with eddy current detection function, used for defect detection and evaluation of composite materials with conductive and magnetic panels and pure metal materials of a certain thickness. The inspection system includes a cold cathode X-ray instrument, a DR receiving panel, and a laptop computer. In addition to the cold cathode X-ray detection board, the mainboard of the cold cathode X-ray instrument also has an eddy current detection board. The eddy current detection board and the cold cathode X-ray detection board share the built-in power supply unit and operation unit of the cold cathode X-ray instrument. A transparent flexible panel is added to the photosensitive element layer of the DR receiving panel. A transparent detection coil made of metal coating technology with an array arrangement is set on the transparent flexible panel. During the inspection, the cold cathode X-ray image of the inspected workpiece and the eddy current detection signal on the surface of the inspected workpiece can be acquired simultaneously. By comparing, fusing, and analyzing the two image signals, a complete and accurate inspection result is obtained.

1. The name of the design product: compact cold cathode ray machine. 2. The use of the design product: the design product is a cold cathode ray machine. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

This invention belongs to the field of non-destructive testing equipment technology, and specifically relates to a cold cathode X-ray flaw detector for pipelines. It includes a cold cathode X-ray emitting module and a pipeline crawler. The bottom end of the cold cathode X-ray emitting module is fixedly connected to the top end of the pipeline crawler. A heat insulation box is fixedly connected to the top end of the pipeline crawler, and a temperature regulating mechanism is fixedly connected to the inner wall of the heat insulation box. A rectangular mounting hole is opened at the top end of the heat insulation box, and a U-shaped block is fixedly connected to the wall of the rectangular mounting hole. A support rod and a pad are fixedly connected to the inner wall of the U-shaped block. This invention enables the cold cathode X-ray flaw detector to not only have temperature regulation and limiting functions to prevent displacement of the pipeline crawler, but also improves the cold cathode X-ray flaw detector's resistance to harsh environments, further enhancing the reliability of the cold cathode X-ray flaw detector's operation and the accuracy of the test results. It can meet the needs of non-destructive testing of large-size pipeline welds in different seasons.

The embodiment of the application relates to the technical field of security inspection, and discloses a cold cathode X-ray luggage security inspection instrument, a control method and a program product; the security inspection instrument comprises a cold cathode X-ray source and a conveying unit; the method comprises the following steps: acquiring load data and shape size data of a detected object, and monitoring conveying speed of the conveying unit in real time; calculating an equivalent density parameter of the detected object according to the load data and the shape size data; determining basic working parameters of the cold cathode X-ray source according to the equivalent density parameter; adjusting a negative secondary high-voltage amplitude in a negative secondary high-voltage circuit; simultaneously adjusting an output amplitude of a positive high-voltage circuit; performing dynamic exposure compensation on the cold cathode X-ray source according to the conveying speed; adjusting a duty cycle of a positive high-voltage output in the positive high-voltage circuit in real time; during beam emission of the cold cathode X-ray source, collecting high-energy signals and low-energy signals penetrating through the detected object, and generating an X-ray image, so that imaging quality is ensured, and device power consumption is significantly reduced.

The invention belongs to the technical field of aerial cableway detection equipment, and particularly relates to a ray detection device for an aerial cableway based on an unmanned aerial vehicle. Comprising an unmanned aerial vehicle body, an unmanned aerial vehicle control terminal, a cold cathode X-ray detection host, a cold cathode X-ray emission module, a cold cathode X-ray detection module, a first wireless signal transceiver module and a second wireless signal transceiver module, the bottom end of the unmanned aerial vehicle body is fixedly connected with a mounting bracket, and the bottom end of the mounting bracket is fixedly connected with a horizontal moving mechanism. According to the high-altitude ropeway nondestructive testing system, efficient, stable and high-precision nondestructive testing of the high-altitude ropeway is completed through full-process cooperative work of airborne end accurate in-position, high-altitude ropeway rigid limiting, autonomous moving scanning, synchronous cleaning protection, real-time imaging detection, airflow interference protection and data wireless return, and the high-altitude ropeway nondestructive testing system is adaptive to outdoor high-altitude complex working environments; the core problems of tedious operation, weak anti-interference capability, poor imaging stability, incomplete detection coverage and the like in the prior art are solved.

The invention relates to the technical field of nondestructive testing, and discloses a superheater oxide skin detection method and system based on cold cathode rays, and the method comprises the steps: emitting a fixed energy electron beam; reflection signals are synchronously received through a plurality of circumferential detection units; time-energy double-domain filtering and main reflection peak cluster extraction are carried out; constructing a local normal vector field to correct the geometric path; and calculating the thickness of the oxide skin by combining a penetration depth model. The system comprises a cold cathode ray emission device, a multi-channel detection array, a high-speed signal preprocessing module, a time-energy joint analysis module, a surface topography modeling module and a thickness calculation module, and is integrated with a temperature compensation and mechanical scanning mechanism. According to the invention, through multi-angle detection and self-adaptive morphology compensation, the signal-to-noise ratio and the measurement precision are significantly improved, when the surface roughness Ra reaches 50 microns, the relative error of thickness measurement is less than 3%, and the method is suitable for a high-temperature and high-dust environment of a power station boiler.

This invention relates to a method and device for fabricating a curved cold cathode X-ray source, achieving better process compatibility, more precise curvature, and a more precise and compact structure. The fabricated curved cold cathode X-ray source includes: a curved anode substrate, a curved cathode substrate, and an insulating isolator; the curved anode substrate includes a curved anode base and a metal anode target disposed on the curved anode substrate; the curved cathode substrate includes a curved cathode base, a cathode electrode disposed on the curved cathode base, a cold cathode emitter array disposed on the cathode electrode, an insulating layer, and a gate electrode disposed on the insulating layer; the metal anode target is fixedly connected to one side of the insulating isolator, and the cathode electrode is fixedly connected to the other side of the insulating isolator.

The present application relates to a kind of wing composite material in situ cold cathode X-ray detection device and method, device includes base, liftable support frame, U-shaped fixing frame, clamping plate, cold cathode X-ray emitter, DR imaging plate, range camera and wireless controller, detection method is using the cold cathode X-ray detection device of above-mentioned intelligent shape to carry out the shape of wing beforehand, form detection path, when aircraft completes flight task and enters detection, through wireless control detection device, aircraft wing composite material is detected quickly automatically.By setting cold cathode X-ray detection device, the detection of aircraft wing composite material is carried out, the weakness of traditional thermal ray equipment, such as large size and strong radiation, is overcome, and the safety of detection is improved.By the setting of simulation detection path, the adjustment of control during detection is reduced, so that the detection process is more smooth, and the detection efficiency is improved.The reliability of detection result is improved by verifying simulation detection path by pre-detection.

1. Name of the product in this design: Cold Cathode Ray Machine (Portable). 2. Purpose of this design: This design is for a portable cold cathode ray machine. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The application relates to the technical field of ray detection, and particularly discloses a cold cathode ray machine digital control system based on high-frequency inversion and pulse modulation, which specifically comprises a master control module and a calculation module, a high-frequency high-voltage inversion and modulation module, a pulse driving and field emission control module, a precision sensing and acquisition module, a safety interlocking and state monitoring module, and a man-machine interface and communication module. The application first proposes a closed-loop control scheme of high-frequency inversion, pulse modulation and cathode state, solves the problem of the independent operation of traditional system power supply, control and emitter, and realizes cross-module collaborative optimization.

The embodiment of the invention relates to the technical field of vehicle security check, and discloses a self-adaptive vehicle cold cathode X-ray detection control method, system, device and product, and the method comprises the steps: obtaining the external contour data of a to-be-detected vehicle collected by a three-axis measurement device when the to-be-detected vehicle enters a detection region, the external contour data at least comprises the vehicle terrain clearance; identifying the vehicle type of the to-be-detected vehicle according to the external contour data of the to-be-detected vehicle; according to the identified vehicle type, the voltage grade of an X-ray source is matched, and different vehicle types correspond to different bias voltage modes; according to the method, the starting time of the X-ray source is determined, the X-ray source is driven to emit beams according to the matched voltage level in response to the starting time, and the to-be-inspected vehicle is scanned, so that the intelligent level of vehicle security inspection is remarkably improved through refined three-axis measurement and hierarchical voltage control.

The invention relates to the technical field of dental medical imaging equipment, in particular to a dental X-ray imaging system based on a cold cathode. The system comprises a data acquisition module, a control processing module and an image display module. Tooth density data and jaw structure data of an oral cavity of a patient are acquired in real time through the data acquisition module, the control processing module establishes a parameter prediction model of the cold cathode X-ray source based on deep learning, the cold cathode X-ray source is utilized to emit pulse beams, teeth of the patient are imaged, and the accuracy of tooth detection is improved. The image display module calculates the deviation between an image quality index and a standard quality index, generates a parameter correction amount, adjusts the pulse parameters of the cold cathode X-ray source through a PID control algorithm, accurately adapts to oral conditions of different patients, improves the imaging accuracy and definition, reduces the radiation dose of the patients, and provides a safety guarantee for the patients.

A production method for producing an anode for a cold cathode X-ray source, including the following steps: producing an element referred to as target from a first material adapted to generating X-rays from the absorption of an electron beam, the first material having a first thermal expansion coefficient Ce,1(Tu) at a predetermined temperature Tu of use of the anode in the X-ray source, producing an element referred to as target support from a second material having a second thermal expansion coefficient Ce,2(Tu) at the predetermined temperature Tu, joining the target to the target support by hard soldering using a solder material at a soldering temperature higher than the predetermined temperature Tu and higher than a melting point of the solder material, so as to form a film of solder interposed between the target and the target support.

This invention relates to a graded capacitor configuration voltage multiplier module for a portable cold cathode X-ray source and its parameter optimization design method, belonging to the field of power electronics technology. The method targets a bidirectional voltage multiplier rectifier circuit, establishing its charge transfer model and performing mathematical optimization with the goal of minimizing the total voltage drop, deriving the optimal proportional relationship between each capacitor stage. Compared to traditional equal-capacitance designs, the graded capacitor configuration rule optimizes the performance of the voltage multiplier rectifier circuit by using a differentiated capacitor configuration module. This achieves a synergistic reduction in load voltage drop without increasing the number of voltage multiplier stages or capacitor capacity, thereby improving the stability and efficiency of the X-ray source. This technology is applicable to the high-efficiency power supply design of portable X-ray sources. The invention also provides corresponding simulation and experimental verification schemes.