Papers – Page 11 – TechConnect Briefs

Some Novel Applications for Wireless Inertial Sensors

Paradiso J.A., Massachusetts Institute of Technology, US

Sensors have followed a corollary of Moore’s Law as they progressively decrease in size, cost, and often power. Nowhere is this more evident than with inertial sensor systems, as MEMS-based devices become steadily smaller and [...]

Novel Sensing Array Nanomaterials: Molecularly-Mediated Assemblies of Nanoparticles

Zhong C-J, Lu S., Luo J., Wang L., Shi X., Schadt M., Hao W., Luo J., State University of New York at Binghamton, US

Nanostructured sensing arrays combined with pattern-recognition analysis are expected to provide new opportunities for enhancing the design of sensor materials in terms of sensitivity and selectivity. We report findings of an investigation of nanostructured sensing [...]

Sensing of Organic Vapors by Flame-Made TiO2 Nanoparticles

Teleki A., Pratsinis S.E., Kalyanasundaram K., Gouma P.I., ETH Zürich, CH

Nanostructured anatase TiO2 was produced by flame spray pyrolysis (FSP) and tested for sensing of volatile organic compounds and CO at 500 °C. The as-prepared powders were characterized by transmission/scanning electron microscopy, x-ray diffraction and [...]

A Multi-Purpose Optical MEMS Sensor for Harsh Environments

Nieva P., McGruer N., Adams G., University of Waterloo, CA

This paper presents the development and experimental analysis of a new multi-purpose optical MEMS (micro-electro-mechanical system) sensor for harsh environments. The sensor can be used as a displacement sensor, accelerometer, seismometer, and with some minor [...]

Improvement of dynamic features of an adaptive optical system for detection and correction of ophthalmic distortions

de Lima Monteiro D.W., Furtado A.S.O., Soloviev O., Ferreira Jr A.I., Teixeira F.B., Melo J.G.M., Vdovin G., Universidade Federal de Minas Gerais, BR

Precise real-time observation of retinal features, ophthalmic biometric identification and the prescription of aberration-specific contact lenses demand detection and eventual correction of ophthalmic aberrations at rates higher than those of microfluctuations and involuntary movements inherent [...]

Silicon MEMS for Photonic Bandgap Devices

Yeatman E.M., Lipson A., Imperial College London, UK

Photonic Bandgap (PBG) devices have been widely investigated because of their capabilities for manipulating light within highly constrained dimensions. Many PBG devices have been fabricated in III-V semiconductors to take advantage of their active optoelectronic [...]

Active Sealing for Soft Poymer Microchips

Bang H., Lee J., Lee W.G., Park J., Yun H., Lee J., Lee W.G., Chung C., Chung S., Cho K., Chung C., Chung S., Han D-C, Chang J.K., Seoul National University, KR

This paper presents a universal sealing method for soft polymer (elastomer) microchips. A robust and reversible sealing method which allows various materials to be bonded and sealed tightly with each other even in aqueous solutions, [...]

Optimization of Diffractive MEMS for Optical Switching

Verheggen J., Panaman G., Khan Raja W., Castracane J., University at Albany-SUNY, US

Micro-Opto-Electro-Mechanical Systems (MOEMS) have found many applications in the fields of communication, spectroscopy, and displays. MOEMS devices based on dynamic diffractive elements are currently investigated at CNSE. The possible applications include: optical switching, signal monitoring, [...]

Negative-Poisson’s-Ratio (NPR) Microstructural Material by Soft-Joint Mechanism

Lu Y-W, Chang C-J, Lin P-T, Gea H-C, Rutgers University, US

We present an example of making a negative-coefficient material - Negative Poisson’s Ratio (NPR) material, which expands in the cross section when stretching. The NPR materials can provide unique characteristics in energy absorption. The NPR [...]

Electromechanical System for Lorentz Force Compensation

Sekalski P., Napieralski A., Simrock S., Technical University of Lodz, PL

The cavity is the main element of each linear accelerator used for high-energy physics purpose. The resonant frequency of cavities depends on its shape. Due to the pulse operation they are deformed by dynamic Lorentz [...]