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IR CAMERA EUSO BALLOON. JEM-EUSO Balloon CDR, CNES, Toulouse. December 18, 2012. José Santiago Pérez Cano. Orbital Aerospace, Madrid, Spain. Héctor Prieto, L. Del Peral & M. D. Rodriguez Frias. UAH, Madrid, Spain. http://spas.uah.es. Outline. - PowerPoint PPT Presentation
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IR CAMERA EUSO BALLOON
JEM-EUSO Balloon CDR, CNES, Toulouse. December 18, 2012
José Santiago Pérez Cano. Orbital Aerospace, Madrid, Spain.Héctor Prieto, L. Del Peral & M. D. Rodriguez Frias. UAH, Madrid, Spain. http://spas.uah.es
Outline
•1st Flight Mission objectives
•IR Camera
•Mechanical configuration
•Thermal configuration
•Power Battery Subsystem
•IR Camera Budgets
•IR Camera schedule
1st Flight Mission Objectives To validate the IR camera mission concept
To obtain real data with ULIS UL 04171 micro bolometer IR camera
To assess the wavelength bands and filters selection 8.55 m band IR camera funding achieved to be on the 1st flight and test the 8.55 m filter band for the IR camera/JEM-EUSO baseline
To validate and optimize Temperature Retrieval Algorithms
To validate and optimize Stereo Vision Technique
To validate and assess part of Calibration Strategy (Shutter)
IR Camera
Detector (UL 04171)
Technology-SiManufacturer: ULISProximity electronics and Signal digitalizationResolution: 640x480-25m, 16bitsNETD < 120mKFrame Rate: 0,5 FPSPower consumption: <300 mW (without TEC)
IR CameraOperational Bands
Band 1:CWL: 10.80 (+0, -0.2) m FWHM: 0.85 ± 0.1 mTransmittance > 80;Transmittance Rejection Band: 7 to 10.0 m < 0.01; 11.4 to 20 m < 0.01
Band 2:CWL: 8.55 (+ 0.2, -0) mFWHM: 0.85 ± 0.1 mTransmittance > 80Transmittance Rejection Band: 7 to 11.3 m < 0.01; 12.7 to 20 m < 0.01
FOV≈12º
COTS IR Camera
ICU(CPU/MEM)
DC/DCconverter
IRX CAM640
FILTER1
FILTER 2
OPTICS
Battery PackSensors
On/offStatusleds
External power supply connection
Ethernet connection
Alluminium panel
12V
12V
5V
28V
IR Camera
Data Management and Storage Subsystem
CPU: TX-7800, with a TS-ETH10 expansion board by means of PC104 bus
Redundant storage system: 2 mirrored flash memory hard disks (Innodisk)
Watchdogs timers
OS: Debian Linux (Kernel 2.6)
Sensors: Temperature, Humidity and Presure digitizer board (TS-ADC24 board)
Baseline COTS IR Camera
IRX Camera
IR Camera
Mechanical Configuration
EUSO IR Camera accomodation
Located on the external side of the Gondola Totally isolated Autonomous batteries
EUSO IR Camera mechanical booth
Withstand environmental conditions Water proof Passive (alluminium panel radiator) and active thermal control (heater) EUSO Balloon Gondola
Mechanical Configuration
Mechanical Configuration
Complete system weight: 27.6 kg
15g (vertical) scenario
Weight @ 15g = 27.6x15 = 414 kg.
6x3 screw option:
Weight supported per screw: 414/18 = 23 Kg per screw
5x3 screw option:
Weight supported per screw: 414/15 = 27.6 Kg per screw
Thermal ConfigurationRadiator: emissivity 0,15
IR Earth load: 260W/m2Albedo: 0,12
Internal dissipation:-Camera 7.8W-CPU 5W-DCDC 5W-Other 2W
Housing-radiator: 300W/m2.K
Housing: emissivity 0,715mm thick Alu
Heat sinks:-Air @ -80ºC (0.0202 W/mK)-Space@-270ºC (View factors computed in ESARAD)
Thermal ConfigurationCold Case:-Operational, steady state-Night observation
Temperatures:-Camera 22ºC-CPU 14ºC-DCDC 14ºC
Thermal ConfigurationHot Case:-Non operational, steady state-No observation This thermal
case includes solar fluxes
IR Camera Battery Pack technical specifications
IR Camera PWP 24h
Altitude 40km
Pressure 3mBar
Power 30W/25.71Ah, 28V
Operation Duty 24h (R-5.3.8-1)
Operating Temperature
Range within -40˚C/+70˚C
Size (230x145x160)mm
Mass 5kg
IR CAMERA Budgets
Preliminary estimation has been done and reported:
SIZE 235 x 240 x 270 mm3 MASS 27.6 Kg POWER 30W
Functional Requirements
The EUSO Balloon IR camera subsystem will be reusable for all the balloon campaign opportunities.
IR Camera Schedule
IR CAM MILESTONES DATE
PDR/CDR December 18th @ CNES
Filter fabrication January 2013
Hardware assembly June 2013
Testing July 15th 2013
FM delivery September 15th 2013
FIRST EUSO-BALLOON FLIGHT
SPIRING 2014 @TIMMING, ONTARIO (CANADA)
Questions?
Thanks for your attention