Non-invasive piezoelectric detection of heartbeat rate and blood pressure


A non-invasive piezoelectric-based sheet sensor is utilised for the deliberate measurement of heartbeat rate and blood pressure. It may comprises one sheet to capture various temporal signals or it will be fashioned as an array of small piezoelectric sensors to capture the temporal and spatial cardiac signals over the chest to relinquish one more spatial granularity on high of the localised temporal signal. The mechanical activity of the heart can cause the piezoelectric sheet to deform, and therefore turn out a voltage signal. To count the heartbeat rate, a mechanical model has been developed using the corresponding electrical waveform; a compression ratio is defined because of the delay as a result of the physical coupling mechanism. Validation of the obtained results has been performed using conventional techniques and equipment. The quantitative assessment shows low errors compared with alternative typical meters.

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