Wavelength division sensing RF vibrometer

Yan Yan; Changzhi Li; Jennifer A. Rice; Jenshan Lin

doi:10.1109/MWSYM.2011.5972827

Wavelength division sensing RF vibrometer

Yan Yan, Changzhi Li, Jennifer A. Rice, Jenshan Lin

Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

7 Scopus citations

Abstract

A wavelength division sensing RF vibrometer which is implemented as a tunable carrier frequency Doppler radar sensor was used for the first time to accurately measure mechanical vibrations of complex patterns. The amplitude ratio of a pair of baseband harmonics under different carrier wavelengths was used to obtain the vibration patterns. A software-controlled PLL was built to generate carrier frequencies from 5.5 to 6.5 GHz. The accuracy of the recovered vibration pattern using the noncontact RF vibrometer rivals other contact measurement instruments, such as LVDT and accelerometer.

Original language	English
Title of host publication	2011 IEEE MTT-S International Microwave Symposium, IMS 2011
DOIs	https://doi.org/10.1109/MWSYM.2011.5972827
State	Published - 2011
Event	2011 IEEE MTT-S International Microwave Symposium, IMS 2011 - Baltimore, MD, United States Duration: Jun 5 2011 → Jun 10 2011

Publication series

Name	IEEE MTT-S International Microwave Symposium Digest
ISSN (Print)	0149-645X

Conference

Conference	2011 IEEE MTT-S International Microwave Symposium, IMS 2011
Country	United States
City	Baltimore, MD
Period	06/5/11 → 06/10/11

Keywords

Accelerometer
Doppler radar
Linear Variable Differential Transformer (LVDT)
harmonic
noncontact
nonlinear
quadrature
vibration
wavelength division

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10.1109/MWSYM.2011.5972827

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abstract = "A wavelength division sensing RF vibrometer which is implemented as a tunable carrier frequency Doppler radar sensor was used for the first time to accurately measure mechanical vibrations of complex patterns. The amplitude ratio of a pair of baseband harmonics under different carrier wavelengths was used to obtain the vibration patterns. A software-controlled PLL was built to generate carrier frequencies from 5.5 to 6.5 GHz. The accuracy of the recovered vibration pattern using the noncontact RF vibrometer rivals other contact measurement instruments, such as LVDT and accelerometer.",

keywords = "Accelerometer, Doppler radar, Linear Variable Differential Transformer (LVDT), harmonic, noncontact, nonlinear, quadrature, vibration, wavelength division",

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AU - Li, Changzhi

AU - Rice, Jennifer A.

AU - Lin, Jenshan

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AB - A wavelength division sensing RF vibrometer which is implemented as a tunable carrier frequency Doppler radar sensor was used for the first time to accurately measure mechanical vibrations of complex patterns. The amplitude ratio of a pair of baseband harmonics under different carrier wavelengths was used to obtain the vibration patterns. A software-controlled PLL was built to generate carrier frequencies from 5.5 to 6.5 GHz. The accuracy of the recovered vibration pattern using the noncontact RF vibrometer rivals other contact measurement instruments, such as LVDT and accelerometer.

KW - Accelerometer

KW - Doppler radar

KW - Linear Variable Differential Transformer (LVDT)

KW - harmonic

KW - noncontact

KW - nonlinear

KW - quadrature

KW - vibration

KW - wavelength division

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SN - 9781612847566

T3 - IEEE MTT-S International Microwave Symposium Digest

BT - 2011 IEEE MTT-S International Microwave Symposium, IMS 2011

Y2 - 5 June 2011 through 10 June 2011

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