Feasibility of Miniaturizing a Heater for a Thin-film Oxygen Partial-pressure Sensor PDF Download
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Author: Carl R. Pearson
Publisher:
ISBN:
Category : Pressure transducers
Languages : en
Pages : 28
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Book Description
Author: Carl R. Pearson
Publisher:
ISBN:
Category : Pressure transducers
Languages : en
Pages : 28
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 464
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 310
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Author: J. J. Wortman
Publisher:
ISBN:
Category : Oxygen
Languages : en
Pages : 100
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Book Description
The development is described of a laboratory model oxygen partial pressure sensor using a sputtered zinc oxide thin film. The film is operated at about 400 C through the use of a miniature silicon bar. Because of the unique resistance versus temperature relation of the silicon bar, control of the operational temperature is achieved by controlling the resistance. A circuit for accomplishing this is described. The response of sputtered zinc oxide films of various thicknesses to oxygen, nitrogen, argon, carbon dioxide, and water vapor caused a change in the film resistance. Over a large range, film conductance varied approximately as the square root of the oxygen partial pressure. The presence of water vapor in the gas stream caused a shift in the film conductance at a given oxygen partial pressure. A theoretical model is presented to explain the characteristic features of the zinc oxide response to oxygen.
Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1292
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Book Description
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index.
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1386
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Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 1466
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1162
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Author:
Publisher:
ISBN:
Category : Aviation medicine
Languages : en
Pages : 132
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Book Description
A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA).
Author: Daniel W. Lester
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 578
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