2 results about "Uniform field" patented technology

The application discloses a kind of based on flat Halbach array's magnetophoresis device and method, two push rod type linear stepping motors in device are set in guide rail two ends by L type push rod, L type push rod top is equipped with stage, the telescopic rotary motor is respectively arranged on the stage, telescopic rotary motor vertically connects magnet plate, third telescopic rotary motor is arranged in rear end of one of magnet plate, vertical guide rail groove and horizontal guide rail groove are equipped on one of magnet plate, control module is connected with each motor.The application utilizes the high gradient magnetic field advantage of flat Halbach array, combines the accurate control ability of motor, utilizes the automatic uniform field and gradient field conversion function of device, cooperates with the microscope with image acquisition function, realizes the observation of degree of automatic cell phagocytosis magnetic particle, does not need to additionally equip multiple sets of magnetic field device, it is convenient to operate and can effectively protect cell activity, adapts biomedical detection, analysis detection and other multi-field magnetic field application needs.

This invention discloses a compact inductive thermal imaging detection device and testing method for fatigue cracks in steel structures, belonging to the field of mechanical engineering technology. It includes: a data processing terminal, an infrared thermal imaging module, a controller, a uniform field magnetization device, and a steel structure specimen. Firstly, by eliminating the water-cooling system and adopting a magnetic yoke focusing design, this invention achieves overall lightweight and compact design, making it truly suitable for various field environments. Secondly, the adjustable distance of the magnetic yoke base allows a single probe to adapt to various complex geometries, overcoming the limitations of cumbersome coil replacement in traditional methods and improving versatility and economy. Thirdly, the optimized magnetic field distribution ensures effective and uniform heating of the detection area with low power consumption. Finally, the device, combined with a standardized thermal image sequence analysis algorithm, provides a solution for rapid detection of surface defects in metallic materials, successfully engineering and practicalizing high-sensitivity laboratory inductive thermal imaging technology.