Fig. 2 | npj Digital Medicine

Fig. 2

From: Clinical assessment of a non-invasive wearable MEMS pressure sensor array for monitoring of arterial pulse waveform, heart rate and detection of atrial fibrillation

Fig. 2

Sensor characterization. a Characterization setup. b Capacitive properties of modified sensor over frequency. Dashed lines are the standard deviation (n = 3). Inset compares pristine and modified sensors. c Sensitivity with different weights placed on the top of the sensor (n = 3). d Time trace of the sensor with sequential loading and unloading of 10 mg weight and e repeatability of three sequential loading/unloading of different weights (n = 3). f Frequency response. g Time trace of the sensor when sequentially loaded three times with a large weight mimicking a damaging situation (n = 3). h Repeatability of three sequential loading/unloading on three sensors and i temperature dependence (n = 3). All error bars present standard deviation

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