Download - Software Development for a Diode Laser Spectrometer Amlam Niragire Dr. Edmond Wilson Dr. Chih-Hao Wu
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Software Development for a Diode Laser Spectrometer
Amlam NiragireDr. Edmond Wilson
Dr. Chih-Hao Wu
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IntroductionFor a long time, scientists have wondered about the possibility of life on Mars
A lot of research has been conducted yet there is no answer
Recently, A team of NASA scientists found evidence of past water movement by studying a Martian meteorite ( Yamato 000593)
At Harding, we have been developing a robotic vehicle for space missions specifically in the search for science for life in the solar system
Laser absorption spectrometry (LAS) techniques
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The RobotMeasurement Factors:
- Laser to detector distance
- Laser source temperature
- Current through the laser
Laser Source
Detector
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The Robot
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Software Related HardwareComputer
NI cDAQ embedded controller
Laser temperature controller
Detector temperature controller
Laser
Detector
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Control PanelGenerate control signals
Acquire and save data
Provide feedback
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DataDATA
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Frequency StudyLimited resolution as modulation frequency increases
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Temperature Study
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Distance studySensitivity increases with distance
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Data analysisAveraging
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Data analysisAveraging
Base line
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Data analysisAveraging
Base line
Inverting
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Data analysisThe area under the curve is proportional to the gas concentration
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What’s next?Software created worked very well
Provide insight
Gained experience
Field tests to be carried out this Spring and Summer
Field tests will focus on measuring water vapor, methane, and CO2
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AcknowledgementNASA EPSCoR
Arkansas Space Grant Consortium
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Any Question
s ?
THANK YOU