Sensors – Chemical, Physical & Bio – Page 29

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 [...]

Sensors & Systems

Intelligent Digital 3-Axis IMU for Automotive and Robotic Applications

Ko H., Park S., Park Y., Choi B-D, Park S., Park Y., Song T., Lim G., Yoo K., Lee A., Lee S-C, Lee S., Lww S.C., Lee A., Lee S-C, Lee S., Lee A., Lee S-C, Lee S., Cho D-I, Choi B-D, Seoul National University, KR

This paper presents the intelligent digital 3-axis IMU (inertial measurement unit) system. The MEMS accelerometer and gyroscope sensing cores are fabricated by using the SBM (Sacrificial Bulk Micromachining) process. The fabricated sensing cores accomplish the [...]

Intelligent Data Aggregation in Sensor Networks Using Artificial Neural-Networks Algorithms

Kulakov A., Davcev D., Ss. Cyril and Methodius University, MK

Most of the current in-network data processing algorithms are modified regression techniques like multidimensional data series analysis. In our opinion, some of the algorithms well developed within the artificial neural-networks tradition, for over 40 years, [...]

A Simulation Tool for System Services in Ad-Hoc Wireless Sensor Networks

Mount S.N.I., Newman R.M., Gaura E.I., Coventry University, UK

Whilst the physical design and instrumentation of ad-hoc wireless sensor networks (WSNs) has recently received a lot of attention, it is often assumed that the system software for such devices will simply copy the design [...]