Fig. 1 | npj Digital Medicine

Fig. 1

From: Respiration rate and volume measurements using wearable strain sensors

Fig. 1

a The left image shows the strain sensors on the ribcage and abdomen. The middle schematics shows the placement of the accelerometer (purple square) in addition to the strain sensors (gray rectangles). The exploded schematic on the right shows the strain sensor and double-sided tape in order of attachment on the skin. All subject test was conducted using a wired data acquisition unit (Supplementary Figure 1). b Change in resistance of the sensor, under strain, measured using the wireless Bluetooth unit. c Image of the wireless Bluetooth unit with a single strain sensor attached

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