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V. Michael Bove, Jr. Bardagjy, Andrew Matthew Massachusetts Institute of Technology. Department of Architecture. Program in Media Arts and Sciences. Program in Media Arts and Sciences (Massachusetts Institute of Technology) 2013-06-17T19:56:47Z 2013-06-17T19:56:47Z 2013 2013 http://hdl.handle.net/1721.1/79331 847630222 Thesis (S.M.)--Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2013. Cataloged from PDF version of thesis. Includes bibliographical references (p. 191-193). Spectroscopy is a powerful tool in material identification, characterization and discrimination. Unfortunately industrial and laboratory spectrometers are typically very large, costly, and inconvenient. The aim of this thesis is to broaden the awareness and appeal of spectroscopic sensing modalities by exploring specialized, rather than general purpose instruments. Rather than sensing the entire spectrum, these devices work by observing just the particular spectral features needed to perform identification or discrimination. This approach greatly simplifies the instrument reducing the cost, size, power consumption, and analysis complexity by many orders of magnitude. In this work the anatomy of such specialized sensors is explored by way of a thorough discussion of illuminators, current sources, photodetectors, photodiode amplifiers, control systems and part selection. In the following chapters, instruments are designed and fabricated, and their tradeoffs are enumerated and discussed. Finally, these building-blocks are combined to construct several working prototypes which are informally characterized. by Andrew Matthew Bardagjy. S.M. 193 p. eng Massachusetts Institute of Technology M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 Architecture. Program in Media Arts and Sciences. Low dimensionality spectral sensing for low cost material discrimination and identification Thesis application/pdf false Publication unknown unknown <Publication xmlns="https://www.openaire.eu/cerif-profile/1.1/" id="0be1ed34-15ae-448c-a2e5-a06b64137333"> <Type xmlns="https://www.openaire.eu/cerif-profile/vocab/COAR_Publication_Types">http://purl.org/coar/resource_type/c_1843</Type> <Language>eng</Language> <Title>Low dimensionality spectral sensing for low cost material discrimination and identification</Title> <PublishedIn> <Publication> </Publication> </PublishedIn> <PublicationDate>2013</PublicationDate> <Authors> <Author> <DisplayName>Bardagjy, Andrew Matthew</DisplayName> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> </Authors> <Editors> </Editors> <Publishers> <Publisher> <DisplayName>Massachusetts Institute of Technology</DisplayName> <OrgUnit /> </Publisher> </Publishers> <License>http://dspace.mit.edu/handle/1721.1/7582</License> <Keyword>Architecture. Program in Media Arts and Sciences.</Keyword> <Abstract>Spectroscopy is a powerful tool in material identification, characterization and discrimination. Unfortunately industrial and laboratory spectrometers are typically very large, costly, and inconvenient. The aim of this thesis is to broaden the awareness and appeal of spectroscopic sensing modalities by exploring specialized, rather than general purpose instruments. Rather than sensing the entire spectrum, these devices work by observing just the particular spectral features needed to perform identification or discrimination. This approach greatly simplifies the instrument reducing the cost, size, power consumption, and analysis complexity by many orders of magnitude. In this work the anatomy of such specialized sensors is explored by way of a thorough discussion of illuminators, current sources, photodetectors, photodiode amplifiers, control systems and part selection. In the following chapters, instruments are designed and fabricated, and their tradeoffs are enumerated and discussed. Finally, these building-blocks are combined to construct several working prototypes which are informally characterized.</Abstract> <Access xmlns="http://purl.org/coar/access_right" > </Access> </Publication>