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Download or read book DEVELOPMENT OF SIC GAS SENSOR SYSTEMS... NASA/TM--2002-211707... NATIONAL AERONAUTICS AND SPACE ADMINISTRATION written by and published by . This book was released on 2003* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gary W. Hunter
Publisher :
ISBN 13 :
Total Pages : 14 pages
Book Rating : 4.:/5 (988 download)
Download or read book Development of SiC Gas Sensor Systems written by Gary W. Hunter and published by . This book was released on 2002 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Adm Nasa
Publisher : Independently Published
ISBN 13 : 9781724036315
Total Pages : 36 pages
Book Rating : 4.0/5 (363 download)
Download or read book Chemical Gas Sensors for Aeronautics and Space Applications III written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-09-25 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aeronautic and space applications require the development of chemical sensors with capabilities beyond those of commercially available sensors. Areas of interest include launch vehicle safety monitoring, emission monitoring, and fire detection. This paper discusses the needs of aeronautic and space applications and the point-contact sensor technology being developed to address these needs. The development of these sensors is based on progress in two types of technology: 1) Micromachining and microfabrication technology to fabricate miniaturized sensors. 2) The development of high temperature semiconductors, especially silicon carbide. Sensor development for each application involves its own challenges in the fields of materials science and fabrication technology. The number of dual-use commercial applications of this microfabricated gas sensor technology make this area of sensor development a field of significant interest. Hunter, G. W. and Neudeck, P. G. and Chen, L. Y. and Liu, C. C. and Wu, Q. H. and Sawayda, M. S. and Jin, Z. and Hammond, J. and Makel, D. and Liu, M. and Rauch, W. A. and Hall, G. Glenn Research Center; Kennedy Space Center NASA/TM-1999-209450, NAS 1.15:209450, E-11943
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781724995438
Total Pages : 30 pages
Book Rating : 4.9/5 (954 download)
Download or read book A Hazardous Gas Detection System for Aerospace and Commercial Applications written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-08-09 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: The detection of explosive conditions in aerospace propulsion applications is important for safety and economic reasons. Microfabricated hydrogen, oxygen, and hydrocarbon sensors as well as the accompanying hardware and software are being developed for a range of aerospace safety applications. The development of these sensors is being done using MEMS (Micro ElectroMechanical Systems) based technology and SiC-based semiconductor technology. The hardware and software allows control and interrogation of each sensor head and reduces accompanying cabling through multiplexing. These systems are being applied on the X-33 and on an upcoming STS-95 Shuttle mission. A number of commercial applications are also being pursued. It is concluded that this MEMS-based technology has significant potential to reduce costs and increase safety in a variety of aerospace applications. Hunter, G. W. and Neudeck, P. G. and Chen, L. - Y. and Makel, D. B. and Liu, C. C. and Wu, Q. H. and Knight, D. Glenn Research Center NASA/TM-1998-208817, E-11419, NAS 1.15:208817, AIAA Paper 98-3614 RTOP 254-02-0A...
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781725551152
Total Pages : 32 pages
Book Rating : 4.5/5 (511 download)
Download or read book Chemical Gas Sensors for Aeronautic and Space Applications 2 written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-08-16 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aeronautic and Space applications require the development of chemical sensors with capabilities beyond those of commercially available sensors. Areas of most interest include launch vehicle safety monitoring emission monitoring and fire detection. This paper discusses the needs of aeronautic and space applications and the point-contact sensor technology being developed to address these needs. The development of these sensor is based on progress two types of technology: 1) Micro-machining and micro-fabrication technology to fabricate miniaturized sensors. 2) The development of high temperature semiconductors, especially silicon carbide. Sensor development for each application involves its own challenges in the fields of materials science and fabrication technology. The number of dual-use commercial applications of this micro-fabricated gas sensor technology make this area of sensor development a field of significant interest. Hunter, G. W. and Chen, L. Y. and Neudeck, P. G. and Knight, D. and Liu, C. C. and Wu, Q. H. and Zhou, H. J. and Makel, D. and Liu, M. and Rauch, W. A. Glenn Research Center NASA/TM-1998-208504, NAS 1.15:208504, E-11309 RTOP 242-20-00...
Author :
Publisher :
ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.:/5 (317 download)
Download or read book SiC-Based Gas Sensor Development written by and published by . This book was released on 2000 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gary W. Hunter
Publisher :
ISBN 13 :
Total Pages : 5 pages
Book Rating : 4.:/5 (1 download)
Download or read book SiC-based Gas Sensor Development written by Gary W. Hunter and published by . This book was released on 2000 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. National Aeronautics and Space Administration
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (213 download)
Download or read book SIC-Based Schottky Diode Gas Sensors... NASA-TM-113159... Dec. 16, 1997 written by United States. National Aeronautics and Space Administration and published by . This book was released on 1998* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781721203574
Total Pages : 28 pages
Book Rating : 4.2/5 (35 download)
Download or read book Durability Evaluation of a Thin Film Sensor System with Enhanced Lead Wire Attachments on SiC/SiC Ceramic Matrix Composites written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-15 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: An advanced thin film sensor system instrumented on silicon carbide (SiC) fiber reinforced SiC matrix ceramic matrix composites (SiC/SiC CMCs), was evaluated in a Mach 0.3 burner rig in order to determine its durability to monitor material/component surface temperature in harsh environments. The sensor system included thermocouples in a thin film form (5 microns thick), fine lead wires (75 microns diameter), and the bonds between these wires and the thin films. Other critical components of the overall system were the heavy, swaged lead wire cable (500 microns diameter) that contained the fine lead wires and was connected to the temperature readout, and ceramic attachments which were bonded onto the CMCs for the purpose of securing the lead wire cables, The newly developed ceramic attachment features a combination of hoops made of monolithic SiC or SiC/SiC CMC (which are joined to the test article) and high temperature ceramic cement. Two instrumented CMC panels were tested in a burner rig for a total of 40 cycles to 1150 C (2100 F). A cycle consisted of rapid heating to 1150 C (2100 F), a 5 minute hold at 1150 C (2100 F), and then cooling down to room temperature in 2 minutes. The thin film sensor systems provided repeatable temperature measurements for a maximum of 25 thermal cycles. Two of the monolithic SiC hoops debonded during the sensor fabrication process and two of the SiC/SiC CMC hoops failed during testing. The hoops filled with ceramic cement, however, showed no sign of detachment after 40 thermal cycle test. The primary failure mechanism of this sensor system was the loss of the fine lead wire-to-thin film connection, which either due to detachment of the fine lead wires from the thin film thermocouples or breakage of the fine wire. Lei, Jih-Fen and Kiser, J. Douglas and Singh, Mrityunjay and Cuy, Mike and Blaha, Charles A. and Androjna, Drago Glenn Research Center NASA/TM-2000-209917, E-12154, NAS 1.15:209917
