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Proceedings Paper

Handheld interface for miniature sensors
Author(s): Sunny Kedia; Scott A. Samson; Andrew Farmer; Matthew C. Smith; David Fries; Shekhar Bhansali
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Paper Abstract

Miniaturization of laboratory sensors has been enabled by continued evolution of technology. Field portable systems are often desired, because they reduce sample handling, provide rapid feedback capability, and enhance convenience. Fieldable sensor systems should include a method for initiating the analysis, storing and displaying the results, while consuming minimal power and being compact and portable. Low cost will allow widespread usage of these systems. In this paper, we discuss a reconfigurable Personal Data Assistant (PDA) based control and data collection system for use with miniature sensors. The system is based on the Handspring visor PDA and a custom designed motherboard, which connects directly to the PDA microprocessor. The PDA provides a convenient and low cost graphical user interface, moderate processing capability, and integrated battery power. The low power motherboard provides the voltage levels, data collection, and input/output (I/O) capabilities required by many MEMS and miniature sensors. These capabilities are relayed to connectors, where an application specific daughterboard is attached. In this paper, two applications are demonstrated. First, a handheld nucleic acid sequence-based amplification (NASBA) detection sensor consisting of a heated and optical fluorescence detection system is discussed. Second, an electrostatically actuated MEMS micro mirror controller is realized.

Paper Details

Date Published: 28 February 2005
PDF: 12 pages
Proc. SPIE 5649, Smart Structures, Devices, and Systems II, (28 February 2005); doi: 10.1117/12.582376
Show Author Affiliations
Sunny Kedia, Univ. of South Florida (United States)
Scott A. Samson, Univ. of South Florida (United States)
Andrew Farmer, Univ. of South Florida (United States)
Matthew C. Smith, Univ. of South Florida (United States)
David Fries, Univ. of South Florida (United States)
Shekhar Bhansali, Univ. of South Florida (United States)

Published in SPIE Proceedings Vol. 5649:
Smart Structures, Devices, and Systems II
Said F. Al-Sarawi, Editor(s)

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