| タイトル | Strain Gage Measurement System to Determine Cryogenic Propellant Tank Level |
| 著者（英） | McVay, Greg; St.Cyr, William W.; Mitchell, Mark; Langford, Lester; VanDyke, David; Figueroa, Fernando |
| 著者所属（英） | NASA Stennis Space Center |
| 発行日 | 2003-07-20 |
| 言語 | eng |
| 内容記述 | Measurement of tank level, particularly for cryogenic propellants, has proven to be a difficult proposition. Current methods based on differential pressure, capacitance sensors, temperature sensors, etc.; do not provide sufficiently accurate or robust measurements, especially at run time. This paper describes a simple, but effective method to determine propellant volume by measuring very small deformations of the structure supporting the tank. Results of a laboratory study to validate the method, and experimental data from a deployed system are presented. A comparison with an existing differential pressure sensor shows that the strain gage system provides a very good quality signal even during pressurization. |
| NASA分類 | Instrumentation and Photography |
| レポートNO | SE-2002-11-00075-SSC |
| 権利 | No Copyright |
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