نتایج جستجو برای: pressure microsensor
تعداد نتایج: 408139 فیلتر نتایج به سال:
Gallium Arsenide (GaAs) based microsensors, analog readout electronics, analog to digital converters and digital signal processors have been in development. Microsensors include accelerometers, infrared sensors, and micromachines with high speed sensing response, extreme temperature operation, and high radiation hardness.
Networking together hundreds or thousands of cheap microsensor nodes allows users to accurately monitor a remote environment by intelligently combining the data from the individual nodes. These networks require robust wireless communication protocols that are energy efficient and provide low latency. In this paper, we develop and analyze low-energy adaptive clustering hierarchy (LEACH), a proto...
The increasing threat of microbial weapons of mass destruction (WMD) creates a critical need for rapid development and deployment of target-specific microsensor detection systems. Next-generation biosensor-dependent technologies must incorporate intelligence into the microsensor platform, enabling the execution of complex detection tasks, such as systematic identification and classification of ...
A wireless passive high-temperature pressure sensor without evacuation channel fabricated in high-temperature co-fired ceramics (HTCC) technology is proposed. The properties of the HTCC material ensure the sensor can be applied in harsh environments. The sensor without evacuation channel can be completely gastight. The wireless data is obtained with a reader antenna by mutual inductance couplin...
Microsel1sors operate under severe energy cOllstraints a'nd should be deployed in large numbers Wilhou! any pre-col/figuration. The maill contribution of this paper is a generalized selfclustering protocol, called Low-energy Localized Clustering (LLC).lt iucorporates the bestfeatllres of two other recently proposed self-configurirzg protocols for sensor networks: the Localized protocol and the ...
OBJECTIVES The purpose of this study was to determine the origin of the pulmonary venous systolic flow pulse using wave-intensity analysis to separate forward- and backward-going waves. BACKGROUND The mechanism of the pulmonary venous systolic flow pulse is unclear and could be a "suction effect" due to a fall in atrial pressure (backward-going wave) or a "pushing effect" due to forward-propa...
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