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Toward a miniature wireless integrated multisensor microsystem for industrial and biomedical applications

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10 Author(s)
Tong Boon Tang ; Sch. of Eng. & Electron., Univ. of Edinburgh, UK ; Johannessen, E.A. ; Lei Wang ; Astaras, A.
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This paper presents our work toward the integration of a multisensor microsystem with wireless communication, using system-on-chip (SoC) methodology. Four different forms of microelectronic sensors have been fabricated on two separate 5×5 mm2 silicon chips measuring pH, conductivity, dissolved oxygen concentration, and temperature. The sensors are integrated with a sensor fusion chip comprising analog circuitry for sensor operation and signal amplification prior to digital decoding and transmission. The microsystem prototype will be packaged in a miniature capsule, which measures 16 mm ×55 mm including batteries and dissipates 6.3 mW for a minimal life cycle of 12 h.

Published in:

Sensors Journal, IEEE  (Volume:2 ,  Issue: 6 )