Sensors – Chemical, Physical & Bio – Page 28

Odor sensor using quartz crystal microbalance coated with molecular recognition membrane

Nanto H., Takei Y., Imamura T., Ishigure D., Kanazawa Institute of Technology, JP

Quartz crystal microbalance (QCM) gas sensor coated with thin molecular recognition membrane using acrylic acid, methacrylic acid or stylene are prepared using plasma-polymerized chemical vapor deposition (CVD)method. The sensor coated with acrylic acid thin film [...]

Silicon Carbide Micro/Nano Systems for Harsh Environment and Demanding Applications

Mehregany M., Fu X-A, Chen L., Case Western Reserve Univesity, US

Micro/nano systems enable the development of smart products and systems by augmenting the computational ability of microelectronics with the perception and control capabilities of sensors and actuators. Micro/nano systems are also known as micro- and [...]

“Smart” Holograms – A Novel Diagnostics Platform

Kabilan S., Marshall A.J., Horgan A., Creasey C.D., Kew S.J., Dean K.E.S., Terrell S.F., Affleck L.J., Smart holograms, UK

“Smart” holograms are novel sensor systems which utilise diffraction as the transduction method for the detection of physical or (bio)chemical stimuli. Interaction of these sensors with a specific analyte or stimulus changes the colour, image [...]

Validation for Micro- and Nano-Sensors

Henry M., Oxford University, UK

The rapid development of sensor and processing technologies is offering many opportunities for embedding new functionality within sensing devices. One important area is the development of diagnostics. While the generation of diagnostic error codes is [...]

Micropower Wireless Sensors

Chandrakasan A.P., Verma N., Kwong J., Daly D., Ickes N., Finchelstein D., Calhoun B., Massachusetts Institute of Technology, US

This paper describes circuit architectures and techniques to meet the specialized requirements of energy autonomous micro-sensor nodes. We address the fundamental components, namely the ADC, DSP, and radio, at the node-level to isolate important optimizations [...]

Wireless Integrated MicroSystems (WIMS): Coming Revolution in the Gathering of Information

Wise K.D., University of Michigan, US

This paper discusses recent developments in microsystems, including progress in low power sensing, circuit integration, wireless interfaces, and wafer-level packaging. Increasingly, such systems are realized on two or three chips in stacked configurations or embedded [...]

Bridge Local Scour Monitoring System Using MEMS Sensor Zigbee Network

Lin Y-B, Lee C-C, Chen J-C, Chang K-C, Lai J-S, National Center for Research on Earthquake Engineering, TW

Bridges subject to periods of flood/high flow require monitoring during those times in order to protect the traveling public. These wireless MEMS scour-monitoring system can measure both the processes of scouring/deposition and the variations of [...]

Wireless Micro and Nano Sensors for Physiological and Environmental Monitoring

Kaminska B., Simon Fraser University, CA

: A wearable physiological/environmental monitoring system and a practical implementation are presented. The technical requirements for wearable electronics and sensors have been specified with an example of ECG, oxygenometer, and wireless network-based bidirectional communication. A [...]

Size does matter – the case for big motes

Newman R.M., Gaura E.I., Coventry University, UK

An account is given of the two scools of mote design for wireless sensor networks, the maxi-mote and the mini-mote. Both approaches have their advantages, but it is argued that the maxi-mote approach is more [...]

Experimental Localization with MICA2 Motes

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

As research into Wireless Sensor Networks (WSNs) increases, it becomes more and more apparent that knowledge of sensors’ physical position within a network is a necessity. A sensor’s data are only useful if put in [...]