Micro Droplet Drive Continuous Deformable Mirror Mirror Process Simulation And Exploration

With the development of microfluidics and adaptive optics， the wave-frontcorrector with fluidic actuators has become an research hotspot. The wave-frontcorrector driven by micro-droplet, capillary force or magnetic fluid has been developed.The wave-front corrector driven by micro-droplet works as follows: the contact angle onthe interface between the liquid drop and the solid is changed by adjusting controlvoltage, the liquid drop is deformed to actuate a film on it, and then the shape ofreflection mirror is changed. This dissertation analyzes the performance of wave-frontcorrector driven by micro-droplets and explores its manufacturing process preliminarily.For the mirror performance analysis，the surface tension is studied first，therelationship between surface tension and the driving force is analyzed. The relationshipof different factors influencing surface tension such as temperature, concentration,composition is discussed. These studies provide a reference for the experiment and theactual manufacturing. The former researchers’ study is summarized. the problems of theoversize of the Young’s modulus and cross-linking value in researchers’ stimulationexperiment has been further discussed, our research carried out that the two criticalissues cannot be resolved in the original model. The structure of the wave-frontcorrector driven by micro-droplet is simplified, the problem of fluid-structureinteraction is transformed into problem of film deformation, A new and more reasonablemodel is established in this paper. On the basis of the simulation analysis in the newmodel, we can conclude that the yang’s modulus is E=6x10⁷(the Yang’s modulus isE=2×10¹¹in the original model). The deformation capacity of the wave-front correctordriven by micro-droplet is analyzed, the results show that the cross-linking value of thenew modulus has been remarkable improvement, decreasing from62%of the originalmodulus to30%～43%. It is closer to the design and the application requirements.These studies provide a reference for the improvement of the wave-front correctordriven by micro-droplet.In the process, the manufacture techniques of the bottom modulus structures isdiscussed in the fifth chapter, the influences of the various routes and sizes to the performance of wave-front corrector are analyzed. We rationally designed the structuresand the overall arrangement of the sub-layer drive unit, such as, opening a small hole inthe ring, the drive lines sharing one negative pole, etc. The specific manufacturingtechniques are also discussed. The results show a preferable effect. Based onhydrophilic and hydrophobic technology, and more reasonable solution about our modelis proposed and characteristics of the process are analyzed.