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Completed TRL 3 (started at 2, targeting 3)
We are proposing to develop and fabricate a new design for the molecular electronic transducer (MET) electrode detectors to improve the MET sensitivity by an order of magnitude. Our current SUBLIME seismometer systems (Subsurface Lunar Investigation and Monitoring Experiment) have demonstrated the seismic sensitivity that enables some Lunar investigations but needs to be an order of magnitude better for most planetary applications. This IRAD program aims to optimize device designs to mature our MET technology and improve seismic sensitivity.
MET seismometers are being developed as a new technology for planetary seismology. These sensors have distinct advantages over other seismometer designs, including high shock tolerance, arbitrary installation angle, and excellent ability to survive in challenging environmental conditions, while maintaining high sensitivity and wide dynamic range. In addition to improved sensitivity, the return of investment of this IRAD program is to mature and optimize our current MET electrode detector developed through previous programs. Successful development of the proposed program directly benefits the following areas: 1) a newly designed MET electrode detectors with higher sensitivity and lower noise level 2) enhanced understanding of different electrode materials and corresponding chemical reactions with various electrolytes and 3) an simplified fabrication process to prototype high-performance MET seismometers. The proposed effort is strategically aligned with Planetary Science Focus Area: Lunar instruments, concepts and technologies. This project will also place Goddard in an excellent position to mature and advance this technology for Lunar and planetary exploration and investigations.
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