ArticleSensors (Basel, Switzerland)2021
An Investigation of Silica Aerogel to Reduce Acoustic Crosstalk in CMUT Arrays.
Article in Sensors (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Advances in Crosstalk Reduction Techniques for Ultrasonic Transducer Arrays.Sensors (Basel, Switzerland) · 2025Review
- A comprehensive review of types, synthesis strategies, advanced designing and applications of aerogels.Royal Society open science · 2025Review
- Visualizing tactile feedback: an overview of current technologies with a focus on ultrasound elastography.Frontiers in medical technology · 2023Review
- A Study on Capacitive Micromachined Ultrasonic Transducer Periodic Sparse Array.Micromachines · 2021Article
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Authors and funding
2 authors.
Funding
Abstract
This paper presents a novel technique to reduce acoustic crosstalk in capacitive micromachined ultrasonic transducer (CMUT) arrays. The technique involves fabricating a thin layer of diisocyanate enhanced silica aerogel on the top surface of a CMUT array. The silica aerogel layer introduces a highly nanoporous permeable layer to reduce the intensity of the Scholte wave at the CMUT-fluid interface. 3D finite element analysis (FEA) simulation in COMSOL shows that the developed technique can provide a 31.5% improvement in crosstalk reduction for the first neighboring element in a 7.5 MHz CMUT array. The average improvement of crosstalk level over the -6 dB fractional bandwidth was 22.1%, which is approximately 5 dB lower than that without an aerogel layer. The results are in excellent agreement with published experimental results to validate the efficacy of the new technique.
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Registered trials
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