Abstract: The internal pressure of human organs and tissues is a crucial vital sign of humans. Monitoring pressure within the human body requires sensors that meet exacting standards for precision, ...
Abstract: This article presents a quadrature phase-locked-loop (QPLL)-based digital system for closed-loop control of micro-electromechanical system (MEMS) resonant sensors. The system estimates the ...
Everyday Health on MSN
We tried 25 indoor air quality monitors — these 9 are the ones we actually recommend
We tested 25 indoor air quality monitors and picked the 9 best to help you detect pollutants and breathe cleaner air at home.
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