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dc.contributor.authorNovak, Franken_US
dc.contributor.authorHutchinson, Marken_US
dc.contributor.authorMitchell, Michaelen_US
dc.contributor.authorMunk, Michelle Marieen_US
dc.contributor.authorParker, Peteren_US
dc.date.accessioned2009-01-20T20:09:54Z
dc.date.available2009-01-20T20:09:54Z
dc.date.issued2008-06-25en_US
dc.identifier.urihttp://hdl.handle.net/1853/26397
dc.descriptionThis presentation was part of the session : Ongoing and Proposed EDL Technology Developmenten_US
dc.descriptionSixth International Planetary Probe Workshopen_US
dc.description.abstractEach vehicle that lands on Mars provides a unique opportunity to study the atmospheric entry environment. Taking measurements of this environment will enable a better understanding of vehicle performance and design margins. Future vehicles will be able to take advantage of this improved knowledge in the forms of lower risk and possibly lower mass. The Mars Science Laboratory Entry, Descent and Landing Instrumentation (MEDLI) experiment will measure pressure and temperature on the protective heat shield during the MSL entry. The pressure distribution and Martian atmospheric data measurements are required to accurately determine the vehicle attitude (angles of attack and sideslip), and the dynamic pressure on the windward surface of the MSL heat shield. The pressure measurements are also used to provide Martian environment data and support computational fluid dynamics (CFD) code validation. This paper will focus on the pressure measurement system, known as the Mars Entry Atmospheric Data System (MEADS), which consists of a flush orifice configuration connected by tubing to a specially ranged and selected pressure transducer and a custom-built signal conditioner, known as the Signal Support Electronics (SSE). The overall measurement requirements demand that the pressure measurement system be rugged and provide high rate, high accuracy output with small input power requirements, and the MEADS design meets those requirements. The pressure measurement system is being flight qualified using a protoflight approach, and will go through rigorous testing that consists of ambient and thermal calibrations, and environmental tests consisting of static acceleration, vibration, and thermal vacuum. The MEADS design approach, manufacturing experiences, and testing results will be discussed. As the system prepares for delivery in summer 2008, a key goal of the project is to serve as a pathfinder, such that every entry system of the future will be instrumented and will improve our knowledge of the critical entry environment.en_US
dc.description.sponsorshipNASAen_US
dc.publisherGeorgia Institute of Technologyen_US
dc.relation.ispartofseriesIPPW08. Ongoing and Proposed EDL Technology Developmenten_US
dc.subjectMarsen_US
dc.subjectMars Science Laboratory (MSL)en_US
dc.subjectPlanetary entryen_US
dc.subjectInstrumentationen_US
dc.subjectAir data systemen_US
dc.subjectPressureen_US
dc.subjectElectronicsen_US
dc.subjectMSL
dc.titleMars Entry Atmospheric Data System (MEADS) Requirements and Design for the Mars Science Laboratory (MSL)en_US
dc.typeProceedingsen_US
dc.contributor.corporatenameUnited States. National Aeronautics and Space Administrationen_US
dc.contributor.corporatenameLangley Research Center


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