Abstract

A laser heterodyne imaging vibrometry is proposed for full-field vibration measurement. The vibration responses are imaged and recorded using a CMOS camera and a digital video recorder. A digital demodulation method based on a cumulative distribution function and autocorrelation is designed to demodulate signals affected by speckle noise. The experimental investigations confirm the viability of the proposed method for vibration measurement. Meanwhile, a comparison with laser Doppler vibrometry is performed to further validate the method. The results prove the proposed vibrometry is an effective and precise option for full-field vibration measurement.

© 2021 Optical Society of America

Full Article  |  PDF Article
More Like This
LDV-induced stroboscopic digital image correlation for high spatial resolution vibration measurement

Zhipeng Sheng, Bing Chen, Wenxin Hu, Keyu Yan, Hong Miao, Qingchuan Zhang, Qifeng Yu, and Yu Fu
Opt. Express 29(18) 28134-28147 (2021)

Multi-point vibrometer based on high-speed digital in-line holography

Julien Poittevin, Pascal Picart, Charly Faure, François Gautier, and Charles Pézerat
Appl. Opt. 54(11) 3185-3196 (2015)

Full-field vibrometry with digital Fresnel holography

Julien Leval, Pascal Picart, Jean Pierre Boileau, and Jean Claude Pascal
Appl. Opt. 44(27) 5763-5772 (2005)

References

You do not have subscription access to this journal. Citation lists with outbound citation 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

Supplementary Material (2)

NameDescription
Visualization 1       A dynamic video of vibrating object.
Visualization 2       Evolution of the pendulous reed moving.

Data Availability

Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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

Figures (15)

You do not have subscription access to this journal. Figure files 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

Tables (1)

You do not have subscription access to this journal. Article tables 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

Equations (22)

You do not have subscription access to this journal. Equations 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

Metrics

You do not have subscription access to this journal. Article level metrics 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