Research Article

Piezoresistive Breathing Sensing System with 3D Printed Wearable Casing

Table 3

Maximum structural relative errors for Algorithm 1 (extreme cases).

10 BPM12.5 BPM15 BPM17.5 BPM20 BPM22.5 BPM

Error (%)0.670.831.001.171.331.50