3 results about "Droplet size" patented technology

The application provides a method for controlling micron suspension droplet movement by laser-droplet reaction, which comprises the following steps: uniformly mixing graphene oxide with solvent water by ultrasonic; atomizing the mixed solution by ultrasonic to obtain microdroplets containing graphene oxide sheet layers; blowing the graphene oxide micron suspension droplets atomized by ultrasonic into a laser beam; the laser and the droplets generate optical effect, ionization decomposition reaction and phase change evaporation reaction to generate optical pressure, ionization reaction thrust and evaporation thrust, and the resultant force drives the droplets to move; the cooperation force direction and size change with the droplet size, and the large-sized droplets are driven to form back light movement, and the small-sized droplets are driven to move towards light. The application can control the back light movement of large-sized droplets and the movement towards light of small-sized droplets, has simple process, obvious effect and simple device, and does not need to rely on complex components or systems.

The invention relates to a system (101) for discriminating the size of supercooled droplets for an aircraft. The system (101) comprises at least one laser source (103) configured to emit a laser beam (105) and a focusing device (107) for focusing the laser beam (105) into a cloud (109) of supercooled droplets. The laser source (103) is configured to generate an optical back-injection interference signal from a reflection of the laser beam (105) into the cloud (109) of supercooled droplets, and a processing unit (113) is configured to acquire the interference signal and analyze the amplitude variations of said interference signal using a convolutional neural network so as to classify the droplets in the cloud (109) according to their size. Figure for the abstract: Fig. 3

This invention discloses a method for detecting particle shape and size during the melt suspension granulation process of energetic materials. The method includes: acquiring droplet images during the heating and dispersion of the energetic material into a dispersion medium; determining droplet size distribution data based on the droplet images; determining whether the droplet size distribution meets the cooling crystallization conditions; if so, proceeding to crystallization; if not, adjusting the stirring rate until the droplet size distribution meets the cooling crystallization conditions; completing the crystallization of the energetic material, acquiring images of the crystalline particles during the crystallization process; determining whether the diameter distribution of the crystalline particles meets the conditions for ending crystallization granulation based on the crystalline particle images; if so, ending the granulation detection; if not, reheating to the melting temperature of the energetic material and re-entering droplet image acquisition until the conditions for ending crystallization granulation are met, ending the detection. This invention achieves real-time dynamic monitoring of the spheroidization process of energetic material melting and crystallization, solving the problem of lag in traditional offline detection.