Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Subdivision and direction recognition of λ / 16 of orthogonal fringes for nanometric measurement

Not Accessible

Your library or personal account may give you access

Abstract

Subdivision is one of the essential methods to improve the measurement resolution of optical instruments. A new method is proposed to solve λ/16 bidirectional subdivision and direction recognition for orthogonal interference signals by constructing two sets of reference signals and using zero-cross detection. The experimental results prove that the method is efficient for orthogonal signals and has good real-time performance by field-programmable gate array realization. This method is easy to realize by use of electronic design automation tools and can be widely used in the signal processing system of optical measurement instruments such as a moiré fringe measurement system and laser interferometer.

© 2009 Optical Society of America

Full Article  |  PDF Article
More Like This
Real-time detection and elimination of nonorthogonality error in interference fringe processing

Haijiang Hu and Fengdeng Zhang
Appl. Opt. 50(15) 2140-2144 (2011)

Code counting of optical fringes: methodology and realization

Benyong Chen, Jianbo Luo, and Dacheng Li
Appl. Opt. 44(2) 217-223 (2005)

Dual-wavelength interferometric technique with subnanometric resolution

Benyong Chen, Xiaohui Cheng, and Dacheng Li
Appl. Opt. 41(28) 5933-5937 (2002)

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 (10)

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 (19)

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

Select as filters


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