Software Development for a Diode Laser Spectrometer Amlam Niragire Dr. Edmond Wilson Dr. Chih-Hao...
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Transcript of Software Development for a Diode Laser Spectrometer Amlam Niragire Dr. Edmond Wilson Dr. Chih-Hao...
Software Development for a Diode Laser Spectrometer
Amlam NiragireDr. Edmond Wilson
Dr. Chih-Hao Wu
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
The RobotMeasurement Factors:
- Laser to detector distance
- Laser source temperature
- Current through the laser
Laser Source
Detector
The Robot
Software Related HardwareComputer
NI cDAQ embedded controller
Laser temperature controller
Detector temperature controller
Laser
Detector
Control PanelGenerate control signals
Acquire and save data
Provide feedback
DataDATA
Frequency StudyLimited resolution as modulation frequency increases
Temperature Study
Distance studySensitivity increases with distance
Data analysisAveraging
Data analysisAveraging
Base line
Data analysisAveraging
Base line
Inverting
Data analysisThe area under the curve is proportional to the gas concentration
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
AcknowledgementNASA EPSCoR
Arkansas Space Grant Consortium
Any Question
s ?
THANK YOU