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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
Extraterrestrial measurements
Robot sensing systems
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
Appears in Collections:JPL TRS 1992+

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