| Autor: |
Justak, J. F., Caimi, F. M., Bryant, C. B., Hastings, L. |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2004, Vol. 710 Issue 1, p451-460, 10p |
| Abstrakt: |
An Optical Mass Gauge Sensor, (OMGS) was designed, built and tested in both sub-scale and full-scale cryogenic hydrogen storage tanks. The design utilized two small optical fibers mounted flush with the surface of the tank to perform quantitative measurements. The mechanical design was subjected to elevated pressures and cryogenically shocked to determine hardware survivability. Signal processing techniques were developed to eliminate potential errors due to changes in the optical throughput from factors such as tank wall contamination and the presence of multi-phase fluids. The OMGS was evaluated through comparison to silicon diode point sensors and continuous capacitance probes. The data was within 1% agreement. The optical sensor was required to measure quantities in stabilized set points and in highly volatile rapidly boiling liquid hydrogen environments. Measurements were successfully taken in all tests. Due to the nature of the design, the patented (US patent 6,118,134) OMGS concept is capable of determining fuel and oxidizer mass quantities in low to zero gravity applications. This sensor is noninvasive, capable of continuous cryogenic fluid management determination, and can be designed to be a fraction of the weight of existing liquid level measurement systems. © 2004 American Institute of Physics [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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