Publication Date:
2019-06-28
Description:
Oxygen sensor is Y2O3-stabilized ZrO2 ceramic disk maintained at 843 degrees C. Overall system response time reduced to about 0.2 second, equal to or less than 1 percent of tunnel run time. When test gas oxygen concentration differs from normal air concentration by 25 percent or more, alarm sounds, and emergency tunnel shutdown signal operates. New ZrO2 sensors intended for hypersonic-vehicle testing.
Keywords:
MATERIALS
Type:
LAR-13257
,
NASA Tech Briefs (ISSN 0145-319X); 9; 4; P. 105
Format:
text
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