NDLI: A new moiré interferometer for measuring in-plane displacement

Content Provider	Springer Nature Link
Author	Lin, S. T.
Copyright Year	2001
Abstract	This paper proposes a new moiré interferometer to be used for determining in-plane displacement of a body deformed with small strains and small surface slopes. With this interferometer, the grating not only diffracts the incoming beam but also rediffracts the two first orders, each of which is reflected by a mirror, back into the path of the incoming beam. The two rediffracted beams are then directed to the viewer to generate an interference fringe pattern that depends only on the in-plane displacement. Theoretical analysis of this new interferometer is presented. It was determined that the sensivity of the interferometer is twice that of conventional interferometers, and the slightly warped beam wave front coming from the laser source does not affect the measurement result. An experiment was performed by adopting the proposed and conventional interferometers to determine the displacement of a specimen grating. The results confirm the advantages of using this new interferometer.
Starting Page	140
Ending Page	143
Page Count	4
File Format	PDF
ISSN	00144851
Journal	Experimental Mechanics
Volume Number	41
Issue Number	2
e-ISSN	17412765
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2001-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Moiré interferometer grating wave front inplane displacement Theoretical and Applied Mechanics Structural Mechanics Engineering Fluid Dynamics Mechanical Engineering Engineering Design Characterization and Evaluation Materials
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Mechanical Engineering Aerospace Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Multiscanning method for fabricating electron moiré grating

Advances in scanning electron microscope moiré

High-magnification moiré interferometer for crack tip analysis of steels

Measurement of residual stress using interferometric moiré: A new insight

Study on Deformation of Polycrystalline Aluminum Alloy Using Moiré Interferometry

Determination of impact parameters by optical measurement of the impactor displacement

Pattern evaluation for in-plane displacement measurement of thin films

Grating holographic interferometry

Fracture process zone analysis of concrete using moiré interferometry

A new moiré interferometer for measuring in-plane displacement

Similar Documents

Multiscanning method for fabricating electron moiré grating

Advances in scanning electron microscope moiré

High-magnification moiré interferometer for crack tip analysis of steels

Measurement of residual stress using interferometric moiré: A new insight

Study on Deformation of Polycrystalline Aluminum Alloy Using Moiré Interferometry

Determination of impact parameters by optical measurement of the impactor displacement

Pattern evaluation for in-plane displacement measurement of thin films

Grating holographic interferometry

Fracture process zone analysis of concrete using moiré interferometry

A new moiré interferometer for measuring in-plane displacement