Design and fabrication of a LEG based stretchable piezoresistive acoustic pressure sensor for ultra low pressures

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: April 21, 2025

The development of an acoustic pressure sensor capable detecting ultra-low-amplitude signals has been a crucial focus in marine, environmental, and military communication applications. This study presents the design, fabrication, characterization stretchable piezoresistive utilizing laser-engraved graphene (LEG) technology. features graphene-based composite sensing element encapsulated between two PDMS layers, specifically designed to operate ultra-low-pressure range (< 3 Pa). A calibration system based on syringe pump was developed evaluate sensor's performance. Experimental results demonstrated sensitivity 61.00 mV/V/kPa with maximum nonlinearity error 0.8% FSS. Additionally, dynamic measurements confirmed capability detect cyclic variations, exhibiting stable repeatable response. These findings validate feasibility LEG-based flexible sensors for low-amplitude signals, offering promising potential high-sensitivity applications underwater noise detection, biomedical sensing, environmental monitoring.

Language: Английский

Selective Metallization of Polyether Ether Ketone Based on UV Laser-Induced Wettability Regulation for 3D Electronics

ACS Applied Polymer Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 19, 2025

Language: Английский