A. R. Kalaiarasi, and S. H. Thilagar
Electrothermal actuators are capable of providing larger displacements compared to electrostatic actuators. Four designs for ETC actuators with the same material properties and same dimensions are studied.
H. du Plessis, W. Perold
University of Stellenbosch, Stellenbosch, South Africa
Surface acoustic wave (SAW) devices are widely used for their sensing capabilities and gas sensing is only one of many uses. There is an ever increasing need to make them as effective as possible by adding nanomaterials to the device. In this study a two-port delay-line structure with 128YX lithium niobate was simulated with COMSOL Multiphysics® in the form of a 2D cross-section. ZnO nanopillars ...
Aarthi E, Pon Janani S, Vaidevi S, Meenakshi Sundaram N , Chandra Devi K
PSG College of Technology, Coimbatore, Tamil Nadu, India
Blind cave fish are capable of sensing flows and movements of nearby objects even in dark and murky water conditions with the help of arrays of pressure-gradient sensors present on their bodies called lateral-lines. To emulate this functionality of lateral-lines for autonomous underwater vehicles, an array of polymer MEMS pressure sensors have been developed that can transduce underwater ...
P. Lazarou, C. Rotinat
CEA LIST/DIASI/LRI, Paris, France
A grand variety of microactuator technologies and demonstrators has been introduced during the last years. Of particular interest are the microactuators based on phase change materials and especially paraffin wax, which can volumetrically expand up to 15%, providing high force actuation. The object of this study is the numerical validation of a paraffin microactuator concept by coupling multiple ...
A. Arevalo, I. G. Foulds
Computer, Electrical and Mathematical Sciences and Engineering Division (CEMSE), King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
School of Engineering, Okanagan Campus, The University of British Columbia, Vancouver, BC, Canada
Joule heating is simulated in COMSOL Multiphysics® software for the electro-thermal micro actuator. The aim is to choose the optimal design parameters to get the largest possible in-plane displacement. The comparison between the different possible configurations will reveal the optimal parameters for the longest displacement. Our current micro fabrication process allows the actuator to use ...
T.Madhuranath, R.Praharsha, Dr.K.Srinivasa Rao
Lakireddy Bali Reddy College of Engineering, Mylavaram, Andhra Pradesh, India
MEMS is the leading technology which combines both electronic and mechanical devices on a single microchip. Tracing the position of the object is an important problem in engineering. This can be addressed by Gyroscopes. These sensors are used to find orientation and angular velocity. This paper focuses on 3D MEMS Piezoelectric Gyroscope. COMSOL Multiphysics® is used for designing and ...
Improving Detection Sensitivity for Nanoscale Targets Through Combined Photonic and Plasmonic Techniques
G. Zhang, Y. Zhao
Clemson University, Clemson, SC, USA
Photonic technique such as the whispering gallery mode (WGM) is often used for detection of small particles like bacteria and viruses. It offers good detection sensitivity and is advantageous over other detection techniques because the detection can be label free. However, the detection sensitivity may not be sufficient when the size of the detection target is in nanoscale. To change this, we ...
Design and Simulation of High-Throughput Microfluidic Droplet Dispenser for Lab-on-a-Chip Applications - new
C. Jin, X. Xiong, P. Patra, R. Zhu, J. Hu
Department of Biomedical Engineering, University of Bridgeport, Bridgeport, CT, USA
Department of Electrical and Computer Engineering, University of Bridgeport, Bridgeport, CT, USA
Department of Mechanical Engineering, University of Bridgeport, Bridgeport, CT, USA
Digital Microfluidic Biochip (DMFB) has been widely used in Lab-on-a-Chip (LoC) for disease diagnosis and treatment applications. To quickly convert traditional analog fluidic sample into digital droplets for DMFB processing, a high-throughput microfluidic droplet dispenser device is needed. In this paper, a high-throughput analog-to-digital microdroplet dispenser for Lab-on-a-Chip application ...
P. Priya , B. D. Pant ,
 Birla Institute of Technology and Science Pilani, Pilani, Rajasthan, India
 CSIR-Central Electronics Engineering Research Institute, Pilani, Rajasthan, India
In this paper, a free membrane is used as a receiver to increase the capacitance and therefore the resolution of the flow meter. For the current application, from the wavelength of sound wave in soft tissue (c= 1540 m/s) the resolution was calculated to be 0.48 mm. This gives the first Eigen frequency of the capacitive structure according to which the poly silicon membrane was designed. After ...
Dynamic Characterization and Mechanical Simulation of Cantilevers for Electromechanical Vibration Energy Harvesting
N. Alcheick, H. Nesser, H. Debeda, C. Ayela, I. Dufour 
Univ. Bordeaux, IMS Lab, Pessac, France
Energy harvesting from ambient vibrations has become an interesting topic for powering wireless sensor networks. Resonant microdevices based on MEMS have become of central importance at low frequency. The power produced at resonance is at least one order of magnitude larger than off frequency power since the largest strain is obtained at resonance. In order to obtain large strain for efficient ...