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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Seepage and Evaporation Determination Using a Liquid Level Interferometer (Laser)

Cluff, C. Brent, Jacobs, Stephen F., Neuberger, Steven, Tasso, Eric M., Kartchner, Kevin K. 01 September 1983 (has links)
Research Project Technical Completion Report (A-109-Ariz.) For: United States Department of the Interior, Project Dates: 1981-1983, September 1, 1983. / The Research on which this project is based was financed in part by the U.S. Department of the Interior, as authorized by the Water Research and Development Act of 1978 (P.L. 95-467) / A liquid level interferometer has been built to measure changes in water level to an accuracy of /8. A novel magnetic suspension is used to position the floating retroreflector of a laser interferometer. Direction sensing is achieved by dual optical channels phased near quadrature by means of an absorbing beamsplitter. The interferometer (laser) has been used to measure very accurately the drop in water level of a lined reservoir. The drop in water level thus provides a precise method of measuring evaporation. It was found that this drop in water level essentially ceased when the relative humidity approached very closely or equaled 100 percent during early morning calm periods. This provides a method of determination of seepage loss. In an unlined reservoir during calm periods when the relative humidity is 100 percent any remaining drop in water level is due to seepage. The laser can measure this rate.
12

A laser interferometer for measurement of surface vibrations and ultrasound

Lin, Shawn Hsien Fan 12 1900 (has links)
No description available.
13

Localization of notches with lamb waves

Rüdiger, Benz 08 1900 (has links)
No description available.
14

An instrument for the measurement of the spectrum of thermoelastic noise in sapphire.

Hollitt, Christopher January 2007 (has links)
Title page, contents and abstract only. The complete thesis in print form is available from the University of Adelaide Library. / This thesis describes the design and construction of an instrument intended to measure the length noise present in optical materials. The detection of thermoelastic noise in sapphire provides the initial motivation for the instrument, though the intent is to build a system capable of robustly characterising a variety of noise sources in multiple materials. Theoretical modelling is used to design a system that is expected to be dominated by thermoelastic noise. / http://proxy.library.adelaide.edu.au/login?url= http://library.adelaide.edu.au/cgi-bin/Pwebrecon.cgi?BBID=1295741 / Thesis (Ph.D.) -- University of Adelaide, School of Chemistry and Physics, 2007
15

An instrument for the measurement of the spectrum of thermoelastic noise in sapphire.

Hollitt, Christopher January 2007 (has links)
Title page, contents and abstract only. The complete thesis in print form is available from the University of Adelaide Library. / This thesis describes the design and construction of an instrument intended to measure the length noise present in optical materials. The detection of thermoelastic noise in sapphire provides the initial motivation for the instrument, though the intent is to build a system capable of robustly characterising a variety of noise sources in multiple materials. Theoretical modelling is used to design a system that is expected to be dominated by thermoelastic noise. / http://proxy.library.adelaide.edu.au/login?url= http://library.adelaide.edu.au/cgi-bin/Pwebrecon.cgi?BBID=1295741 / Thesis (Ph.D.) -- University of Adelaide, School of Chemistry and Physics, 2007
16

Digital frequency demodulation for a laser vibrometer /

Cronin, Christopher Joseph. January 1994 (has links)
Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1994. / Vita. Abstract. Includes bibliographical references (leaf 75). Also available via the Internet.
17

Comparative analysis of refractive outcome using partial coherence interferometry and ultrasound biometry in phacoemulsification cataract surgery /

Yip, Pui-pui, Terri. January 2005 (has links)
Thesis (M. Med. Sc.)--University of Hong Kong, 2005.
18

A magneto-optic trap for rubidium

Delfs, Holger 24 August 1992 (has links)
Graduation date: 1993
19

Development of laser ultrasonic and interferometric inspection system for high-volume on-line inspection of microelectronic devices

Valdes, Abel. January 2009 (has links)
Thesis (M. S.)--Mechanical Engineering, Georgia Institute of Technology, 2009. / Committee Chair: Ume, I. Charles; Committee Member: Kalaitzidou, Kyriaki; Committee Member: Mayor, J. Rhett. Part of the SMARTech Electronic Thesis and Dissertation Collection.
20

Comparative analysis of refractive outcome using partial coherence interferometry and ultrasound biometry in phacoemulsification cataractsurgery

Yip, Pui-pui, Terri., 葉佩珮. January 2005 (has links)
published_or_final_version / Medical Sciences / Master / Master of Medical Sciences

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