结构简单的光纤超声波传感器。

IF 1.2 Q3 ACOUSTICS
Fadwa Shagroun, Richard James Colchester, Erwin Jozef Alles
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引用次数: 0

摘要

光纤超声传感器体积小、灵敏度高、抗电磁干扰能力强,因此在生物医学成像和计量领域的应用中极具吸引力。通常情况下,这类传感器依赖于光学谐振结构,如法布里-珀罗腔,需要复杂的制造技术。这里介绍的是另一种光纤超声波传感器,它由一个简单的可变形反射结构组成,使用简单的浸渍涂层沉积而成。用激光多普勒测振仪进行的测试表明,这种传感器的灵敏度、信噪比和噪声等效压力均优于压电式水听器,同时具有高度微型化的外形尺寸、交钥匙操作和简单的制造工艺。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A fibre-optic ultrasound sensor of simple fabrication.

The small size, high sensitivity, and immunity to electromagnetic interference of fibre-optic ultrasound sensors make them highly attractive for applications in biomedical imaging and metrology. Typically, such sensors rely on optically resonant structures, such as Fabry-Perot cavities, that require elaborate fabrication techniques. Here, an alternative fibre-optic ultrasound sensor is presented that comprises a simple deformable and reflective structure that was deposited using simple dip-coating. Interrogation with a laser Doppler vibrometer demonstrated how this sensor achieved a sensitivity, signal-to-noise ratio, and noise-equivalent pressure that outperformed piezoelectric hydrophones, whilst offering a highly miniature form factor, turn-key operation, and simple fabrication.

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CiteScore
1.70
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