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Title: An autonomous bladder pressure monitoring system
Authors: Coosemans, Johan ×
Puers, Robert #
Issue Date: Sep-2005
Publisher: Elsevier science sa
Series Title: Sensors and actuators a-physical vol:123-24 pages:155-161
Abstract: This paper reports on the development of an autonomous monitoring system, capable of continuously measuring the pressure inside the bladder. The capsule features wireless bi-directional communication and can be inductively powered anywhere inside the bladder. Short-circuiting the resonant LC tank for the data transmission maximizes the operating range of the passive telemetry. A novel clock extraction method is presented, based on lock-in of a Schmitt-trigger oscillator into the external radio-frequency field. A prototype was built using only discrete components. The system measures the pressure with a resolution of 0.04kPa at a sampling rate of 10 Hz. (C) 2005 Elsevier B.V. All rights reserved.
URI: 
ISSN: 0924-4247
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Electrical Engineering - miscellaneous
ESAT - MICAS, Microelectronics and Sensors
× corresponding author
# (joint) last author

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