High frequency water vapor density measurements using the beat frequency method

Graduate Thesis Or Dissertation

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Citeable URL: https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/dz010s695

Descriptions

Attribute Name	Values
Creator	Elorriaga Montenegro, Estefania
Abstract	This document describes the design and deployment of a first generation water vapor density sensing unit, the HumiSense. This device is based on an open, air-filled capacitor which is part of a resonant circuit. The frequency of the resonant circuit mixed with a fixed frequency oscillator is the basis of the method to generate a signal that is associated to the change in water vapor density within the open capacitor with time. The physical testing results were inconclusive given that there were many unresolved artifacts in the data. Several suggestions for improving the device for future device generations were provided.
License	All rights reserved
Resource Type	Masters Thesis
Date Available	2012-07-10T14:53:47+00:00
Date Issued	2012-06-15
Degree Level	Master's
Degree Name	Master of Science (M.S.)
Degree Field	Biological and Ecological Engineering
Degree Grantor	Oregon State University
Commencement Year	2013
Advisor	Selker, John
Committee Member	Thomas, Christoph Kleber, Markus Wagner, James
Academic Affiliation	Biological and Ecological Engineering
Non-Academic Affiliation	Oregon State University. Graduate School
Subject	Detectors--Design and construction Heterodyning (Electronics) Evapotranspiration--Measurement
Rights Statement	In Copyright
Publisher	Oregon State University
Peer Reviewed	No
Language	English [eng]
Replaces	http://hdl.handle.net/1957/30841

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