Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 35,
  • Issue 24,
  • pp. 5411-5417
  • (2017)

Tapered Fiber Attached Nitrile Diaphragm-Based Acoustic Sensor

Not Accessible

Your library or personal account may give you access

Abstract

We present a low-cost acoustic sensor using tapered fiber structure attached to a nitrile polymer-based diaphragm. The tapered fiber is attached in the line of symmetry of a circular diaphragm of optimized thickness and diameter. The applied acoustic pressure deforms the diaphragm, which bends the tapered fiber attached with it. The bending induced change in transmission power is utilized to detect the applied acoustic pressure. The acoustic sensitivity and minimum detectable pressure at 2500 Hz are 36 mV/kPa and 21.11 Pa/√Hz, respectively, for the sensor setup with tapered fiber waist diameter of 18.37 μm. The sensor shows a reasonably flat response from 250 to 2500 Hz. The performance parameters of the sensor, such as sensitivity, minimum detectable pressure, and flat response range can be easily tailored by changing the dimensions of diaphragm and tapered fiber.

PDF Article
More Like This
High sensitivity fiber-optic Michelson interferometric low-frequency acoustic sensor based on a gold diaphragm

Pingjie Fan, Wei Yan, Ping Lu, Wanjin Zhang, Wei Zhang, Xin Fu, and Jiangshan Zhang
Opt. Express 28(17) 25238-25249 (2020)

Diaphragm-based optical fiber sensor array for multipoint acoustic detection

Jingyi Wang, Fan Ai, Qizhen Sun, Tao Liu, Hao Li, Zhijun Yan, and Deming Liu
Opt. Express 26(19) 25293-25304 (2018)

Fiber optic Fabry–Pérot acoustic sensor using PVC and GO diaphragms

Hamed Moradi, Parviz Parvin, Fatemeh Shahi, and Ali Ojaghloo
OSA Continuum 3(4) 943-951 (2020)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved