3 results about "Homogeneity index" patented technology

The application provides a kind of high vacuum oven system with dynamic temperature regulation of cellular, it relates to kitchen utensils and control system technical field, the application is divided into center hot area, edge hot area and key material contact area by high vacuum oven cavity, real-time acquisition each area temperature, infrared radiation intensity and local pressure data;Temperature variation, pressure disturbance and radiation deviation are analyzed using multi-physical field coupling model, the calculation of temperature control uniformity index, thermal vacuum coupling index and radiation compensation index, and according to the preset threshold value to generate closed-loop regulation strategy, realize the dynamic control of regional heating power, vacuum pump power and adjustable emissivity.The system can effectively improve the cavity temperature control balance, thermal vacuum stability and radiation uniformity, ensure the precision and thermal uniformity of the baking process, suitable for high-precision baking and high-temperature drying process in the field of kitchen utensils.

This invention discloses an elastic deformation modeling system for organ displacement during CyberKnife treatment, relating to the field of radiotherapy technology. It includes a data acquisition module for collecting static anatomical data, dynamic displacement data, and stiffness distribution data of the target organ; a dynamic registration module for constructing a heterogeneous elastic deformation field of the target organ through deformation modeling and a registration engine; a tracking and prediction module for acquiring real-time displacement of the target organ, predicting deformation trends, and obtaining predicted deformation data; a treatment planning integration module for acquiring 4D dose distribution data, calculating conformity and homogeneity indices, and evaluating and optimizing the dose; and a feedback control module for outputting motion compensation commands to the CyberKnife robotic arm, performing beam correction when the displacement exceeds a preset threshold, and adjusting the robotic arm's posture. This invention solves the problem of radiation deviation from the target area during CyberKnife treatment, improving the safety and therapeutic effect of radiotherapy.

This invention relates to the field of magnetron sputtering coating monitoring and control technology, and more specifically, to an intelligent monitoring method for the uniformity of magnetron sputtering coatings on solar collector tubes. The method includes: constructing a transmission-type acousto-optic caustic monitoring environment; acquiring caustic images and inverting them to obtain transient acoustic pressure distribution; performing singularity analysis on the pressure distribution using the box-counting method to calculate the microscopic inhomogeneity index of the coating layer; generating airflow pulse commands by combining the real-time acoustic resonance frequency of the inter-tube cavity; and driving a standing wave gas knife to inject pulsed gas into the inter-tube gap, using the wave interference principle to block the parasitic hollow cathode effect. This invention, through acousto-optic inversion and fractal topology filtering, achieves precise quantification and online closed-loop suppression of invisible micro-arc discharge lattice damage, significantly improving coating uniformity.