This article may be used for research, teaching and private study purposes. Any substantial or systematic reproduction, redistribution , reselling , loan or sub-licensing, systematic supply or distribution in any form to anyone is expressly forbidden. The publisher does not give any warranty express or implied or make any representation that the contents will be complete or accurate or up to da...

A finite elements model of an interdigitated microsensor has been used to investigate the sensitivity of the sensor to the detection and the quantification of cells flowing in a test chamber. In particular the sensitivity of the sensor towards the geometry of sensors and the presence of a cell flowing through the channels was evaluated; several sensors topologies were considered in order to def...

This paper focuses on reducing the power consumption of wireless microsensor networks. Therefore, a communication protocol named LEACH (Low-Energy Adaptive Clustering Hierarchy) is modified. We extend LEACH’s stochastic clusterhead selection algorithm by a deterministic component. Depending on the network configuration an increase of network lifetime by about 30 % can be accomplished. Furthermo...

This paper presents the fabrication and characterization of a resonant pressure microsensor based on SOI-glass wafer-level vacuum packaging. The SOI-based pressure microsensor consists of a pressure-sensitive diaphragm at the handle layer and two lateral resonators (electrostatic excitation and capacitive detection) on the device layer as a differential setup. The resonators were vacuum package...

This article introduces a power-efficient, miniature electronic nose (e-nose) system. The e-nose system primarily comprises two self-developed chips, a multiple-walled carbon nanotube (MWNT)-polymer based microsensor array, and a low-power signal-processing chip. The microsensor array was fabricated on a silicon wafer by using standard photolithography technology. The microsensor array comprise...

BACKGROUND Microsensor navigation has the potential to aid balloon sinus ostial dilation by providing real-time tracking of balloon devices within the complex anatomy of the sinonasal cavities. OBJECTIVE This feasibility study evaluated the incorporation of a new microsensor technology into a flexible guidewire for use with current instruments in balloon sinus ostial dilation. METHODS A ret...

We present a low cost wireless microsensor node architecture for distributed computation and sensing in massively distributed embedded systems. Our design focuses on the development of a versatile, low power device to facilitate experimentation and initial deployment of wireless microsensor nodes in deeply embedded systems. This paper provides the details of our architecture and introduces fine...

Microsensor Systems Andrew Y. Wang, SeongHwan Cho, Charles G. Sodini, Anantha P. Chandrakasan Department of Electrical Engineering and Computer Science MASSACHUSETTS INSTITUTE OF TECHNOLOGY Cambridge, MA fandywang,chosta,sodini,[email protected] Abstract|Wireless microsensor systems are used in a variety of civil and military applications. Such microsensors are required to operate for years ...

This study presents the fabrication and characterization of a humidity microsensor that consists of interdigitated electrodes and a sensitive film. The area of the humidity microsensor is about 2 mm(2). The sensitive film is polyaniline doping polyvinyl alcohol (PVA) that is prepared by the sol-gel method, and the film has nanofiber and porous structures that help increase the sensing reaction....

Two real-time, in situmethods tomeasure the breaking force of fine bondingwireswhile on thewire bonder are reported and compared. The firstmethod uses a special test chipwith a piezoresistivemicrosensor integrated next to the bonding pad. A 25 m diameter Au wire piece is attached with a ball bond to the test pad of the microsensor. The wire piece between the ball bond and the lower edge of the ...