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Construction of a fiber-coupled coherent laser radar for measurement of distances and velocities
Umeå University, Faculty of Science and Technology, Department of Physics.
2018 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

The purpose of this experiment is to measure the distance and velocity of the translation stage using a Laser radar (LIDAR). The formula with regression coefficients derived from a calibration set, is used to calculate distances. In addition, we use Allan variance to calculate the stability of frequency. As for the result, the best resolution of distance can reach 0.047 mm and velocity resolution is 0.001 mm/s. The most stable time appears when frequency modulation works continuously for about 5.8 seconds.

Place, publisher, year, edition, pages
2018.
National Category
Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:umu:diva-150043OAI: oai:DiVA.org:umu-150043DiVA, id: diva2:1230743
Subject / course
Fysik C - Examensarbete
Available from: 2018-07-04 Created: 2018-07-04 Last updated: 2018-07-04Bibliographically approved

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