NDLI: Pico-precision displacement sensor using digital image analysis

Content Provider	IEEE Xplore Digital Library
Author	Murata, J.
Copyright Year	2005
Description	Author affiliation: Dept. of Phys., Rikkyo Univ., Tokyo (Murata, J.)
Abstract	A new digital image analysis method combined with statistical error analysis for precision position monitoring is described. Prime motivation was to monitor mechanical deformations of large tracking chambers. The author developed optical alignment system using light source beams and CCD cameras, combined with semi-offline digital image analysis software for muon tracking chambers for PHENIX experiment at RHIC. Obtained resolution of one micron precision is enough sufficient, however, the author developed a new analysis method in order to improve the resolutions without constructing new expensive devices. Applying the new method, it is shown that the position determination resolution can be improved from one micron to 10 nm. This analysis method is applied to a new displacement sensor, which is a dedicated purpose new device. A prototype device has been constructed, showing extremely high resolution of around 100 pm. The present device is now utilized in a table-top gravity experiment, motivated by the possible violation of Newtonian gravitational law. A prototype system using digital video camera and its applications are described
Starting Page	675
Ending Page	679
File Size	1010110
Page Count	5
File Format	PDF
ISBN	0780392213
ISSN	10957863
DOI	10.1109/NSSMIC.2005.1596349
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-10-23
Publisher Place	Puerto Rico
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image sensors Digital images Image analysis Monitoring Digital cameras Prototypes Mechanical sensors Error analysis Optical sensors Light sources
Content Type	Text
Resource Type	Article

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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
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