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This document describes a flexible strain-gauge sensor designed for wearable heartbeat detection. The sensor is fabricated using a double-sided method with polymer and metal layers (polyimide and nickel-chrome) through a roll-to-roll process compatible with flexible printed circuit board manufacturing. Testing showed the sensor has a linear response to forces over 930 kPa and can detect bending radii from 5 to 100 mm. It is thin, flexible, inexpensive and highly sensitive compared to traditional photoplethy

Author

Shehda Zahda

Language

EN