2. Cansat Competition 2010: Team: CATSAT TEAM (Students) Country: Spain University: Universidad Politécnica de Madrid Escuela Técnica Superior Ingenieros Aeronáuticos Category: Experimental-Cansat Size: Cansat Size Team leader: Miguel Ángel de Frutos Carro Team members: Almudena Buelta Management and Administration Alejandro Bujarrabal Data Analysis and Structure Carlos Freire Structure and Treasury Juan Fernández Parachute system Miguel Ángel de Frutos Electronics and Programming

3. Cansat Mission: Detection, measurement and registration of different physics variables. Verification of the existence of useful microgravity. Design a modular electronic device which can be used in futures amateur rockets Practical realization of a recovery system which allow us a controlled opening.

4. Flight Data: Outside temperature. Barometer. Barometer altimetry. Acceleration in 3 axis. Speed on 3 axiss. Space travelled in 3 axis. Microgravity. GPS coordinates. GPS height. GPS speed. GPS heading. Event detection: take off rocket exit

5. Electronic and Programming :

6. Accelerometer Microcontroller BS2 Temperature Sensor G-Switch Pressure Sensor EEPROM 256k Voltage Regulator

7. GPS Module Acelerometer Electronic and Programming :

8. Microcontroller: BS2 Processor Speed: 20 MHz Turbo. Program Execution Speed: ~ 12.000 RAM Size: 38 Bytes (12 I / 0, 26 Variable). Scratch Pad RAM: 128 bytes. EEPROM (Program) Size: 8 x 2 KBytes, ~ 4,000 PBASIC instructions. Number of I / O Pins: 16 + 2 Dedicated Serial. Current Draw @ 5 VDC: 40 mA Run, 350 uA Sleep. Source / Sink Current per I / O: 30 mA / 30 mA. PBASIC Commands: 61. Package: 24-pin DIP.

9. Temperature Sensor: Dallas DS1620 The DS1620 is an integrated circuit that works as a digital thermometer and uses a SPI communication to communicate with the microcontroller. Pressure Sensor: Motorola MPX 4115th This sensor is an integrated circuit capable of measuring absolute pressure through a membrane system. It produce an output voltage proportional to 0.204 to 4.794V. EEPROM: Microchip 25LC256 SPI (256K) EEPROM stands for Electrically-Erasable Programmable Read-Only Memory (electrically erasable and programmable ROM). It has a capacity of 32768 bits organized in 8-bit addresses. 3-axis accelerometer Hitachi H48c The 3-axis accelerometer Hitachi H48c is an integrated device type MEMS capable of measuring gravitational forces (g) on 3 axes, ranging from 0 to ± 3g GPS: Parallax receiver Module The Parallax Global Positioning System (GPS) Receiver Module is a fully integrated, low-cost unit completed with an on-board patch antenna. A G-Switch is a switch whose state depends on the acceleration forces.

10. And the Energy….

11. Flight Data Analysis: Cansat Device EXCEL SpreedSheet GPS Track on Google Earth Data table Graphics and Diagrams EXCEL DIRECTLY Google Earth

12. Structure subsystem Objetives:  Protect the electronics and support the parachute  Desing an fiberglass structure.  Minimizate the aerodinamical drag

13. Structure subsystem Desing:  Fiberglass  Two parts  Sizes: long = 11.5 cm radio = 3.3 cm

14. Structure subsystem Construction process : Plaster mold

15. Structure subsystem Fiberglass and Epoxi resin

16. Structure subsystem Sand and paint

17. Recovery subsystem Objectives:  To desing a parachute acording to the weight of the cansat.  To esing an aperture sytem.  Recover the cansat safely.

18. Recovery subsystem Our parachute desing:  Made of Nylon.  Spherical shape.  Size: R = 0,375 m  Braided Nylon threads, 1 meters long

19. Recovery subsystem Parachute construction:  Cut 8 isosceles triangles of Nylon  Sewn the triangles  Make 8 holes for the threads  Make a hole in the center

20. Recovery subsystem Parachute bending:  Fold in a half the parachute, keeping the thread taut.  Hold the centre of the parachute,and bend small triangles, from the ends toward the center.  From the far end of the threads start to wind the parachute and then continue rolling the threads.  Anchor the last thread to the structure of the cansat.

21. Budget of the mission:  Electronic Subsystem……………………………………..TOTAL: 190€  Structure Subsystem………………………………………..TOTAL: 19€  Parachute and Recovery subsystem……………….TOTAL: 6€ TOTAL: 215€

23. Yeahhh!!..Also in our WEBSITE!! http://sites.google.com/site/catsatteam/ Free Project Downloading: Sketches, codes, schematics..