Fiber Optic Ultrasonic Sensor Using Raman-Nath Light Diffraction

Yunqiu Wu, P. M. Shankar, Peter A. Lewin, Daniel Patrick Koller

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

A novel fiber optic ultrasonic sensor using the principle of Raman-Nath light diffraction has been developed. The sensor does not perturb the acoustic field and exhibits a wideband frequency response. In addition to the remote sensing of the field, it is suitable for measurements of both continuous and pulsed ultrasonic waves. The experimental results obtained with the sensor were compared to those measured using a calibrated PVDF needle hydrophone, showing excellent agreement. The sensor's frequency response in the range from 3 to 15 MHz, typical of that used in medical ultrasound imaging, was determined using the time delay spectrometry (TDS) technique. It appears that the fiber optic sensor provides a useful alternative to the widely used PVDF ultrasonic probes in specific applications where any perturbation between acoustic field and sensor is undesirable. Also, since the active element diameter of the sensor can be made comparable to the core diameter of an optical fiber, the fiber optic sensor minimizes the spatial averaging effects and of fers significant improvement in comparison with the present state-of-the-art hydrophones which have a minimum diameter on the order of 300 µm.

Original languageEnglish (US)
Pages (from-to)166-171
Number of pages6
JournalIEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Volume41
Issue number2
DOIs
StatePublished - Jan 1 1994

Fingerprint

Ultrasonic sensors
Fiber optic sensors
fiber optics
Diffraction
ultrasonics
sensors
Sensors
Hydrophones
diffraction
Acoustic fields
Frequency response
Ultrasonics
hydrophones
frequency response
Ultrasonic waves
Needles
Spectrometry
Optical fibers
Remote sensing
Time delay

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Acoustics and Ultrasonics
  • Electrical and Electronic Engineering

Cite this

@article{705666c54d7544549b2d9223f25a384b,
title = "Fiber Optic Ultrasonic Sensor Using Raman-Nath Light Diffraction",
abstract = "A novel fiber optic ultrasonic sensor using the principle of Raman-Nath light diffraction has been developed. The sensor does not perturb the acoustic field and exhibits a wideband frequency response. In addition to the remote sensing of the field, it is suitable for measurements of both continuous and pulsed ultrasonic waves. The experimental results obtained with the sensor were compared to those measured using a calibrated PVDF needle hydrophone, showing excellent agreement. The sensor's frequency response in the range from 3 to 15 MHz, typical of that used in medical ultrasound imaging, was determined using the time delay spectrometry (TDS) technique. It appears that the fiber optic sensor provides a useful alternative to the widely used PVDF ultrasonic probes in specific applications where any perturbation between acoustic field and sensor is undesirable. Also, since the active element diameter of the sensor can be made comparable to the core diameter of an optical fiber, the fiber optic sensor minimizes the spatial averaging effects and of fers significant improvement in comparison with the present state-of-the-art hydrophones which have a minimum diameter on the order of 300 µm.",
author = "Yunqiu Wu and Shankar, {P. M.} and Lewin, {Peter A.} and Koller, {Daniel Patrick}",
year = "1994",
month = "1",
day = "1",
doi = "10.1109/58.279129",
language = "English (US)",
volume = "41",
pages = "166--171",
journal = "IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control",
issn = "0885-3010",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "2",

}

Fiber Optic Ultrasonic Sensor Using Raman-Nath Light Diffraction. / Wu, Yunqiu; Shankar, P. M.; Lewin, Peter A.; Koller, Daniel Patrick.

In: IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, Vol. 41, No. 2, 01.01.1994, p. 166-171.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Fiber Optic Ultrasonic Sensor Using Raman-Nath Light Diffraction

AU - Wu, Yunqiu

AU - Shankar, P. M.

AU - Lewin, Peter A.

AU - Koller, Daniel Patrick

PY - 1994/1/1

Y1 - 1994/1/1

N2 - A novel fiber optic ultrasonic sensor using the principle of Raman-Nath light diffraction has been developed. The sensor does not perturb the acoustic field and exhibits a wideband frequency response. In addition to the remote sensing of the field, it is suitable for measurements of both continuous and pulsed ultrasonic waves. The experimental results obtained with the sensor were compared to those measured using a calibrated PVDF needle hydrophone, showing excellent agreement. The sensor's frequency response in the range from 3 to 15 MHz, typical of that used in medical ultrasound imaging, was determined using the time delay spectrometry (TDS) technique. It appears that the fiber optic sensor provides a useful alternative to the widely used PVDF ultrasonic probes in specific applications where any perturbation between acoustic field and sensor is undesirable. Also, since the active element diameter of the sensor can be made comparable to the core diameter of an optical fiber, the fiber optic sensor minimizes the spatial averaging effects and of fers significant improvement in comparison with the present state-of-the-art hydrophones which have a minimum diameter on the order of 300 µm.

AB - A novel fiber optic ultrasonic sensor using the principle of Raman-Nath light diffraction has been developed. The sensor does not perturb the acoustic field and exhibits a wideband frequency response. In addition to the remote sensing of the field, it is suitable for measurements of both continuous and pulsed ultrasonic waves. The experimental results obtained with the sensor were compared to those measured using a calibrated PVDF needle hydrophone, showing excellent agreement. The sensor's frequency response in the range from 3 to 15 MHz, typical of that used in medical ultrasound imaging, was determined using the time delay spectrometry (TDS) technique. It appears that the fiber optic sensor provides a useful alternative to the widely used PVDF ultrasonic probes in specific applications where any perturbation between acoustic field and sensor is undesirable. Also, since the active element diameter of the sensor can be made comparable to the core diameter of an optical fiber, the fiber optic sensor minimizes the spatial averaging effects and of fers significant improvement in comparison with the present state-of-the-art hydrophones which have a minimum diameter on the order of 300 µm.

UR - http://www.scopus.com/inward/record.url?scp=0028396104&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0028396104&partnerID=8YFLogxK

U2 - 10.1109/58.279129

DO - 10.1109/58.279129

M3 - Article

AN - SCOPUS:0028396104

VL - 41

SP - 166

EP - 171

JO - IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control

JF - IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control

SN - 0885-3010

IS - 2

ER -