Title:
Mars Entry Atmospheric Data System (MEADS) Requirements and Design for the Mars Science Laboratory (MSL)

dc.contributor.author Novak, Frank en_US
dc.contributor.author Hutchinson, Mark en_US
dc.contributor.author Mitchell, Michael en_US
dc.contributor.author Munk, Michelle Marie en_US
dc.contributor.author Parker, Peter en_US
dc.contributor.corporatename United States. National Aeronautics and Space Administration en_US
dc.contributor.corporatename Langley Research Center
dc.date.accessioned 2009-01-20T20:09:54Z
dc.date.available 2009-01-20T20:09:54Z
dc.date.issued 2008-06-25
dc.description This presentation was part of the session : Ongoing and Proposed EDL Technology Development en_US
dc.description Sixth International Planetary Probe Workshop en_US
dc.description.abstract Each 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.sponsorship NASA en_US
dc.identifier.uri http://hdl.handle.net/1853/26397
dc.publisher Georgia Institute of Technology en_US
dc.relation.ispartofseries IPPW08. Ongoing and Proposed EDL Technology Development en_US
dc.subject Mars en_US
dc.subject Mars Science Laboratory (MSL) en_US
dc.subject Planetary entry en_US
dc.subject Instrumentation en_US
dc.subject Air data system en_US
dc.subject Pressure en_US
dc.subject Electronics en_US
dc.subject MSL
dc.title Mars Entry Atmospheric Data System (MEADS) Requirements and Design for the Mars Science Laboratory (MSL) en_US
dc.type Text
dc.type.genre Proceedings
dspace.entity.type Publication
local.contributor.corporatename Daniel Guggenheim School of Aerospace Engineering
local.contributor.corporatename College of Engineering
local.relation.ispartofseries International Planetary Probe Workshop (IPPW)
relation.isOrgUnitOfPublication a348b767-ea7e-4789-af1f-1f1d5925fb65
relation.isOrgUnitOfPublication 7c022d60-21d5-497c-b552-95e489a06569
relation.isSeriesOfPublication 6369d36f-9ab2-422f-a97e-4844b98f173b
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