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Chemical microsensor development for aerospace applications
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Lukco, Dorothy Xu, Jennifer C. Hunter, Gary W. Biaggi-Labiosa, Azlin M. Chen, Liangyu |
| Copyright Year | 2013 |
| Description | Numerous aerospace applications, including low-false-alarm fire detection, environmental monitoring, fuel leak detection, and engine emission monitoring, would benefit greatly from robust and low weight, cost, and power consumption chemical microsensors. NASA Glenn Research Center has been working to develop a variety of chemical microsensors with these attributes to address the aforementioned applications. Chemical microsensors using different material platforms and sensing mechanisms have been produced. Approaches using electrochemical cells, resistors, and Schottky diode platforms, combined with nano-based materials, high temperature solid electrolytes, and room temperature polymer electrolytes have been realized to enable different types of microsensors. By understanding the application needs and chemical gas species to be detected, sensing materials and unique microfabrication processes were selected and applied. The chemical microsensors were designed utilizing simple structures and the least number of microfabrication processes possible, while maintaining high yield and low cost. In this presentation, an overview of carbon dioxide (CO2), oxygen (O2), and hydrogen/hydrocarbons (H2/CxHy) microsensors and their fabrication, testing results, and applications will be described. Particular challenges associated with improving the H2/CxHy microsensor contact wire-bonding pad will be discussed. These microsensors represent our research approach and serve as major tools as we expand our sensor development toolbox. Our ultimate goal is to develop robust chemical microsensor systems for aerospace and commercial applications. |
| File Size | 1705415 |
| Page Count | 14 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20140006583 |
| Archival Resource Key | ark:/13960/t8md3xk14 |
| Language | English |
| Publisher Date | 2013-05-13 |
| Access Restriction | Open |
| Subject Keyword | Hydrogen Sensors Fuel Leak Detection Chemial Sensors Gas Detection Fire Detection Leakage Carbon Dioxide Sputtering Aerospace Engineering Fabrication Fire Prevention Microinstrumentation Chemical Detection Chemical Composition Solid Electrolytes Gas Detectors Electrochemical Cells Room Temperature Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Presentation |
