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Please use this identifier to cite or link to this item:
http://hdl.handle.net/2014/41799
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| Title: | Development of sample verification system for Sample Return Missions |
| Authors: | Toda, Risaku
McKinney, Colin
Jackson, Shannon P.
Mojarradi, Mohammad
Trebi-Ollennu, Ashitey
Manohara, Harish |
| Keywords: | Biomembranes
Capacitance
Electrodes
Extraterrestrial measurements
Robot sensing systems
Substrates
Capacitors |
| Issue Date: | 5-Mar-2011 |
| Publisher: | Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2011. |
| Citation: | 2011 IEEE Aerospace Conference, Big Sky, Montana, March 5, 2011. |
| Abstract: | This paper describes the development of a proof of-concept sample verification system (SVS) for in-situ mass measurement of planetary rock and soil sample in future robotic sample return missions. Our proof-of-concept SVS device contains a 10 cm diameter pressure sensitive elastic membrane placed at the bottom of a sample canister. The membrane deforms under the weight of accumulating
planetary sample. The membrane is positioned in proximity to an opposing substrate with a narrow gap. The deformation of the membrane makes the gap to be narrower, resulting in increased capacitance between the two nearly parallel plates. Capacitance readout circuitry on a nearby printed circuit board (PCB) transmits data via a low-voltage differential signaling (LVDS) interface. The fabricated SVS proof-of-concept device has successfully demonstrated approximately 1pF/gram capacitance change |
| URI: | http://hdl.handle.net/2014/41799 |
| Appears in Collections: | JPL TRS 1992+
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