Acknowledgements Steve Beyerlein- Faculty Advisor David Atkinson- Faculty Advisor Greg Swanson-...
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Transcript of Acknowledgements Steve Beyerlein- Faculty Advisor David Atkinson- Faculty Advisor Greg Swanson-...
Acknowledgements Steve Beyerlein- Faculty AdvisorDavid Atkinson- Faculty AdvisorGreg Swanson- Graduate AdvisorTye Ried- Graduate AdvisorJustin Schlee- Student AssociateRaj Venkatapathy- NASA ClientDavid Hash- NASA ClientJohnny Fu- NASA Client
Project ObjectivesAny spacecraft entering an atmosphere must have a thermal protection system (TPS) that is able to withstand the extreme heat developed during re-entry. The re-entry environment is extremely difficult to analyze. To better understand the conditions during re-entry, NASA Ames has a need for a wireless sensor system that can be integrated into the TPS of entry vehicles. It has not been possible to place sensors in the TPS of these vehicles due to the complications with adding extra wiring and the risk involved in adding sensors to the mission. A wireless sensor system would remove the wiring complexities and risk associated with the sensors, thereby allowing a comprehensive sensor suite to be integrated into the TPS material. The data gathered from such a system would be instrumental in developing a more accurate model of the conditions faced during re-entry. With a greater understanding of these conditions the TPS of future missions could be made safer and more efficient.
Background
X-Jet -Plasma Torch in side a vacuum chamber to simulate atmospheric entry
-Plasma torch can reach heat flux of 1000 W/cm^2
-Used for initial TPS sensor validation and testing
-X-Jet is located at NASA Ames Research Center
VASTA new test to be conducted this years will be a test drop from the student ran atmospheric balloon program VAST
Jesse Pentzer John Sochacki
Lucas Wells Brandy Holmes
Chris Johnson
•Multi-Nodal Wireless Architecture
•Multiple Sensors On Each Node
•Multiple Sensor Types on Each Node
•Integration With VAST Balloon Test
•Testing at NASA Ames X-Jet Facility
Circuit Board Packaging
Semester Schedule 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
Jan 20-Jan 26
Jan 27-Feb 2
Feb 3-Feb 9
Feb 10-Feb 16
Feb 17-Feb 23
Feb 24-Mar 1
Mar 2-Mar 8
Mar 9-
Mar 15
Mar 16-Mar 22
Mar 23-Mar 29
Mar 30-Apr 5
Apr 6-Apr 12
Apr
13-Apr 19
Apr
20-Apr 26
Apr
27-May 3
May 4-May 10
Technical Presentation
Construction Assimilate Data
Test and Revise Design Report
Repairs & Updates
Detailed Design Review
Snap Shot Day X-Jet
VAST Launch
Design Report
Review
Expo (25th)
Everythin
g Due (6th)
JohnAssemble & Test
BoardsRevise & Order Boards
Receive & Make
Boards Test
Last Minutes
Repairs and
Updates
LucasWork on Transmit
& Receive
Finish ADC
Finish I^2C Finish
Transmit
Finish Receive
Error
Checking
BrandyModel & Design
Construction Testing Revise Revise
JesseMachine
Shop
Assemble 1st Plug
Test
Machine & Assemble
Plug 2 Compariso
n Test
Assemble Box WRT
PCB
Machine &
Assemble plug 3
ChrisSerial Port Interface
Detailed Com Scheme Xbee 2 Xbee Com Revise
Work Completed
Receiving T/C Data X-Jet Packaging Completed Pressure Data Initial Torch Testing
Two Completed and Tested Boards VAST Packaging Tested
Master - Slave Command Sending
Hyperterminal Commands
Work To Be Completed Before End of Week
Complete Assembly of PCB's Extra TPS Blocks for X-Jet Uhura Integration
Programming Uhura
Data Storage on Uhura
Receiving Board Protocol
RTD Sensor Reading
Work To Be Completed In The Next Three Weeks
Revised VAST Packaging
Uplink with VAST ARM for GPS Timestamp
Powering Receiving Board During VAST Flight
StatusThermal Model