Consultez les proceedings de la Conference COMSOL 2020
Design and Simulation of Unimorph Piezoelectric Energy Harvesting System
In this paper we made an attempt to maximize the power output in the different piezoelectric materials in a unimorph cantilever beam configuration. In this research, a macro scale unimorph piezoelectric power generator prototypes consists of an active piezoelectric layer, stainless steel ... En savoir plus
Electrohydrodynamic Micropump Modeling for Performance Optimization
We present an optimized and efficient design of an electrohydrodynamic (EHD) micropump for high performance in microscale and biological applications. We are targeting two major applications, a parylene C design for electrically-actuated medicine delivery, and a silicon-based pump design ... En savoir plus
Mode Conversion Losses in a Smooth Wall Circular Waveguide
The ITER-ECE transmission lines consist of smooth-wall circular waveguides, including miter bends and other components. The performance of the TL is crucial to ensuring that the requirements for the diagnostic to measure the plasma parameters are met. COMSOL Multiphysics® has a finite ... En savoir plus
State of Charge (SOC) Governed Fast Charging Method for Lithium Based Batteries
The proposed State of Charge (SOC) governed fast charging method for secondary lithium based batteries charges a battery many times faster than the normal Constant Current-Constant Voltage (CC-CV) charging and reduces the side-effects generally accompanied by various fast charging ... En savoir plus
Efficient Anchor Design for Quality Factor Enhancement in a Silicon Nitride-on-Silicon Lateral Bulk Mode Resonator
Anchor loss causes a reduction in the quality factor of high frequency micromechanical resonators. This study illustrates the importance of anchor design in mitigating anchor loss in high frequency resonators. The performances of two different anchor configurations for a silicon nitride ... En savoir plus
Application of the Focused Impedance Method (FIM) to Determine the Volume of an Object within a Volume Conductor
Focused Impedance Method (FIM), a new technique of electrical impedance measurement having high sensitivity in the central region, can sense the change in transfer impedance of an object embedded at a shallow depth within a volume conductor of unchanging background conductivity, using ... En savoir plus
Tunable MEMS Capacitor for RF Applications
Radio Frequency MEMS devices have emerged to overcome the problem of high losses associated with semiconductors at high frequencies. A tunable MEMS capacitor is a micrometre-scale electronic device whose capacitance is controlled through different actuation mechanisms which govern the ... En savoir plus
Simulation of a Capacitive Sensor for Wear Metal Analysis of Industrial Oils
Lubricant oil is used to ensure proper functioning of industrial machinery such as turbines, gears, bearings and compressors. Oil analysis is used to detect and quantify the presence of wear metals and other contaminants in the lubricant of oil wetted systems, by sensing the change in ... En savoir plus
Design and Analysis of a Wetting Lens for the Pinhole Cameras of a Two Phase Flow System
The present work reports the fabrication process of micro lens for pinhole cameras, modeled using COMSOL Multiphysics®, by satisfying the wetting properties. Wetting is a change in contact angle between the liquid and solid surface area. The wetting properties are clearly understood in ... En savoir plus
Finite Element Modeling of Remote Field Eddy Current Phenomenon
Remote field eddy current (RFEC) technique is a method of detecting defects in ferromagnetic tubes. This is based on low frequency eddy current, which employs an exciter coil and a receiver coil separated by a characteristic distance. The exciter is fed with a low frequency sinusoidal ... En savoir plus