ArticleScientific reports2025
Design and fabrication of a LEG based stretchable piezoresistive acoustic pressure sensor for ultra low pressures.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- From Fixed-Frequency to Tunable: Advances in Acoustic Sensors for Physiological Acoustic Monitoring.Sensors (Basel, Switzerland) · 2026Review
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3 authors.
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Abstract
The development of an acoustic pressure sensor capable of detecting ultra-low-amplitude signals has been a crucial focus in marine, environmental, and military communication applications. This study presents the design, fabrication, and characterization of a stretchable piezoresistive acoustic pressure sensor utilizing laser-engraved graphene (LEG) technology. The sensor features a graphene-based composite sensing element encapsulated between two PDMS layers, specifically designed to operate in the ultra-low-pressure range (< 3 Pa). A calibration system based on a syringe pump was developed to evaluate the sensor's performance. Experimental results demonstrated a sensitivity of 61.00 mV/V/kPa with a maximum nonlinearity error of 0.8% FSS. Additionally, dynamic pressure measurements confirmed the sensor's capability to detect cyclic acoustic pressure variations, exhibiting a stable and repeatable response. These findings validate the feasibility of LEG-based flexible pressure sensors for detecting low-amplitude acoustic signals, offering promising potential for high-sensitivity applications in underwater noise detection, biomedical sensing, and environmental monitoring.
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