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A new drip infusion solution monitoring system has been developed for hospital and care facility use. The system detects the fall of each drip chamber drop of fluid and also a free-flow situation. Three non-contacting copper foil electrodes are used. The electrodes are wrapped around the infusion supply polyvinyl chloride (PVC) tube from the solution bag, the drip chamber, and the infusion PVC tube...
A 9 b 100 MS/s successive approximation register (SAR) ADC has been implemented in 65 nm CMOS, with an active area of 0.012 mm2. A tri-level based charge redistribution technique improves DAC switching energy efficiency and settling time, which is achieved by connecting bottom plates of differential capacitor arrays. The ADC achieves an SNDR of 53.1 dB (8.53 ENOB) and consumes 1.46 mW from a 1.2 V...
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