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Microscale Ceramic Pressure Sensor Element for a Carbon Isotope Analysis System for Planetary Exploration: – Design, Manufacturing and Characterization
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Microsystems Technology, Ångström Space Technology Centre (ÅSTC). (Ångström Space Technology Centre (ÅSTC))
2015 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

This master thesis examines the design, manufacturing and characterization of a miniaturized ceramic pressure gauge to be integrated into a system for carbon isotope analysis. Carbon isotope analysis can be used to find traces of extraterrestrial life.

Screen printing, platinum bond wire threading, milling, lamination and sintering processes have been developed in order to manufacture a robust, temperature stable and chemically inert component potentially integratable to the carbon isotope analysis system. With use of the Pirani principle, which measures the pressure dependent thermal conductivity of air, promising results have been observed. A relative resistance change of 6 % within the pressure range of 1-10 Torr has been observed. This is comparable to, and even greater than, previous studies. The device has a good response for the desired pressure range. The device sensitivity was studied with different currents and geometric parameters. The results showed that the sensitivity is highly dependent on current and air volume.

The work has been done at the Ångström Space Technology Centre –­­ a research group within the Ångström Laboratory, Uppsala University – which currently researches on microscale systems for, e.g., space exploration.

Place, publisher, year, edition, pages
2015.
Series
UPTEC Q, ISSN 1401-5773 ; 15004
Keyword [en]
HTCC, Pirani, Pressure Sensor, Space Exploration
National Category
Materials Chemistry Engineering and Technology
Identifiers
URN: urn:nbn:se:uu:diva-257533OAI: oai:DiVA.org:uu-257533DiVA: diva2:839646
Educational program
Master Programme in Materials Engineering
Supervisors
Examiners
Available from: 2015-07-06 Created: 2015-07-03 Last updated: 2015-07-06Bibliographically approved

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