Figure 5.

Sleep apnea monitoring results

(A) Measurement setup of the system. Real-time monitoring results from volunteer #1 of (B) humidity sensor resistance, (C) three-axis acceleration sensor output, and (D) breathing rate calculated from peaks of humidity sensor output during sleep. Real-time monitoring results from volunteer #3 for (E) humidity sensor resistance, (F) three-axis acceleration sensor outputs, and (G) breathing rate calculated from peaks of the humidity sensor response during sleep.