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Fabrication of glass gas cells for the haloe and maps satellite experiments
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Walthall, H. G. Sullivan, E. M. |
| Copyright Year | 1984 |
| Description | The Halogen Occultation Experiment (HALOE) and the Measurement of Air Pollution from Satellites (MAPS) experiment are satellite-borne experiments which measure trace constituents in the Earth's atmosphere. The instruments which obtain the data for these experiments are based on the gas filter correlation radiometer measurement technique. In this technique, small samples of the gases of interest are encapsulated in glass cylinders, called gas cells, which act as very selective optical filters. This report describes the techniques employed in the fabrication of the gas cells for the HALOE and MAPS instruments. Details of the method used to fuse the sapphire windows (required for IR transmission) to the glass cell bodies are presented along with detailed descriptions of the jigs and fixtures used during the assembly process. The techniques and equipment used for window inspection and for pairing the HALOE windows are discussed. Cell body materials and the steps involved in preparing the cell bodies for the glass-to-sapphire fusion process are given. |
| File Size | 44976930 |
| Page Count | 38 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19840026430 |
| Archival Resource Key | ark:/13960/t5z65cb2t |
| Language | English |
| Publisher Date | 1984-10-01 |
| Access Restriction | Open |
| Subject Keyword | Spacecraft Instrumentation Radiometers Optical Filters Correlation Earth Atmosphere Refraction Glass Spaceborne Experiments Halogen Occultation Experiment Fabrication Artificial Satellites Specifications Sapphire Windows Apertures Air Pollution Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
