A boundary control approach is used to a two-link rigid-flexible wing in this article. Its design based on the principle of bionics improve mobility and flexibility aircraft. First, series partial differential equations (PDEs) ordinary (ODEs) are derived through Hamilton's principle. These PDEs ODEs describe governing conditions system, respectively. Then, strategy developed achieve objectives including restraining vibrations bending twisting deflections flexible link achieving desired...

In this paper, SU-8 EPON-based photoresist (PR) polymerization optimization and its possible microfluidic MEMS applications are reported. First, the results of under UV lithography The parameters which could have an influence on quality were chosen optimized by a three-level, L9 orthogonal array Taguchi method. By optimization, optimal parameter range weighted per cent final determined. For SU-8-5 SU-8-50, many microstructures with thicknesses more than 100 500 µm aspect ratios 20 50...

In this paper we describe an experimental method and analytical model for characterizing the surface energy inside a microchannel of micrometer size by measuring marching velocity or position capillary meniscus. This is based on fact that force summation meniscus tension filling reservoir gravitation might produce pressure to pull liquid into channel, instantaneous related energy. Both parylene silicon-nitride microchannels with different conditions were fabricated perform fill-in...

Quadcopters represent rotary wing configuration of the Unmanned Aerial Vehicles (UAVs) with immense application potential in industrial and strategic contexts. Tradeoff between flight endurance payload capacity renders design optimization UAVs a critical activity substantial impact on possibilities. Among structural parts typical Quadcopter, central body frame constitutes major portion total weight. The present study aims at reduction weight while conforming integrity requirements, through...

In the body of research relevant to high-performance flapping micro air vehicles (MAV), development light-weight, compact and energy-efficient mechanisms occupies a position primacy due its direct impact on flight performance mission capability. Realization such versatile mechanism with additional ability producing thrust levels that fulfill requirements cruising forward vertical take-off landing (VTOL) conditions demand extensive design validation evaluation. This paper presents concerted...

This article described a control law for stabilizing the vertical motion of flapping-wing MAV and developed system architecture that is potentially beneficial in realizing autonomous flight MAVs fewer than 10 g. The began with brief introduction to Golden Snitch, including its development history overall system. dynamics were given altitude control. use wind tunnel tests obtain aerodynamical parameters was described. Due limited payload-carrying capability, modified so automatic g possible...

This article presents a framework of using MEMS sensors to investigate unsteady flow speeds flapping wing or the new concept on wings (SOFWs). Based implemented self-heating sensor U18 complementary metal–oxide–semiconductor (CMOS) foundry provided by Taiwan Semiconductor Research Institute (TSRI), compact sensing region was incorporated for in situ diagnostics biomimetic issues. The sensitivity CMOS sensor, packaged with parylene coating 10 μm thick prolong lifetime, observed as −3.24...

The advent of evanescent field based fiber optic biosensor and advancements in nanotechnology has create an excellent opportunity label-free detection biomarkers which plays vital role the early, rapid accurate diagnosis acute diseases. In this work, we demonstrate a high sensitive Molybdenum Tungsten Disulfide (MoWS2) coated side polished (SPF) for early cardio vascular disease (CVD). Cardiac Troponins I (cTnI) is identified as biomarker interest diagnonis CVD. proposed SPF exhibits surface...

This paper proposes a novel technique for fabricating micro patterns of glutaraldehyde (GA)-crosslinked gelatin. It provides another means to crosslink gelatin other than using photo-sensitizing agents, and the GA-crosslinked can still be made successfully by accessing conventional photolithography. A much less toxic increased biocompatible approach strengthening microstructures developed according this idea. also describes potential methodology as single-cell culture bases. The best spatial...

Electrical-discharge wire cutting is a promising technique that provides flexibility and lightness for flapping micro aerial vehicle. used to fabricate the high-aspect-ratio structure of four-bar linkage gear transmission module made aluminum-alloy 7075. Aluminum-alloy 7075 has excellent specific strength (yield strength/density) good durability in vehicle's tuff operation. A new vehicle 21.6 cm wing span consequently minimum body mass 5.9 g after installing flexible frame carbon fibers...

In an effort to develop micro aerial vehicles of 20-cm-span with a successful flight record, this study aims investigate the influences wing configuration and foil stiffness on aerodynamic forces via wind-tunnel testing. These wings same skeleton structures are made polyethylene, polyethyleneterephthalate, polyxylylene (parylene). The thickness ranges from 17 43 m, which corresponds variating membrane. tests showed that lift coefficients stiffened have been improved, whereas net thrust...

In this study, we investigate the fabrication of a micromachined microwave switch using commercial 0.35 µm double polysilicon four metal (DPFM) complementary oxide semiconductor (CMOS) process and post-process only one maskless wet etching. The has merits easy execution low cost. uses an etchant (silox vapox III) to etch silicon dioxide layer release suspended structures switch. is capacitive type that actuated by electrostatic force. components are coplanar waveguide (CPW) transmission...

This paper presents a new framework using MEMS flow sensors on turbine blades (SOTB) to investigate unsteady features of rotating wind turbine. Self-heating were implemented by the U18 complementary metal-oxide semiconductor (CMOS) foundry provided Taiwan Semiconductor Research Institute (TSRI). Flow sensor chips with size 1.5 mm × parylene-coated, output via wireless data acquisition system (WDAQ), and mounted at root, middle tip 1.2 m diameter semi-rigid blade 400 W horizontal axis (HAWT)....

Relaxing from the conventional regarding of rigid flapping mechanism, in this review paper author introduced flexible wing frames for micro-air-vehicles (MAVs) with span 20 cm at Tamkang University. The constructed flappingMAVGolden Snitch a smallest body mass 5.9 g created successful 107 s flight record four-bar linkage driving mechanism 2008. Augmented by precision injection molding (PIM) manufacture, almost polymer-made MAV modified increases endurance up to 480 2010. Via high speed...

This work investigates the fabrication of a RF (ratio frequency) MEMS (micro elector mechanical system) switch using standard 0.35 μm 2P4M (double polysilicon four metal) CMOS (complementary metal oxide semiconductor) process and post-process. The is capacitive type, which actuated by an electrostatic force. structure consists CPW (coplanar waveguides) transmission lines suspended membrane. membrane are layers process. main advantage only needed simple post-process, compatible with...

The complementary metal-oxide-semiconductor (CMOS) process is the main stream to fabricate integrated circuits (ICs) in semiconductor industry. Microelectromechanical systems (MEMS), when combined with CMOS electronics form MEMS process, have merits of small features, low power consumption, on-chip circuitry, and high sensitivity develop microsensors micro actuators. Firstly, authors review educational foundry service provided by Taiwan Semiconductor Research Institute (TSRI) allied United...

The purpose of the current study is to emphasize characteristics and phenomena leading-edge twisting in flapping wing vehicles. A fused deposition modeling (FDM) 3D printing method applied develop mechanisms with bevel gears achieve twisting. Three were developed, including simple only (type-A1: normal servo mechanism), continuous (type-B: servo-bevel gear restricted via mechanical stoppers (type-B1: mechanism adjustable stoppers). Utilizing a low-speed wind tunnel, aerodynamic performances...