A Wearable Contactless Sensor Suitable for Continuous Simultaneous Monitoring of Respiration and Cardiac Activity

Table 2

Test and calibration measurements values.

Spirometer reading [mL]	Sensor reading [mL]	Error (%)
Test measurements after calibration
1670	1620	3
2890	2775	4
3300	3040	8
1660	1670	−1
Test measurements trial 2 (see text)
2000	2132	−7
1610	1770	−10
1660	1810	−9
1750	1711	2
2210	2425	−10
2880	3020	−5