1. FSAE Instrumentation 11/18/08 Ryan Gunn John Lee Dan Van Winkle Ali Yilmaz

2. Requirements Data Acquisition Shock Position Steering Position Wheel Speed Oil & Brake Pressure Real-Time Transmission Data Logging GUI

3. System Diagram

4. Environmental System Requirements Withstand normal operating conditions Electro-magnetic Interference Water Exposure Vibration Temperature Weight - <20 lbs Size (10”x12”x5” last year’s car)

5. Data Acquisition Alternatives RacePak MoTeC NI cRIO

6. Real-Time Communication Alternatives WiFi IEEE 802.11 Custom Frequency RF communication

7. Wi-Fi Data Transmission in Racing First Application 2005 Pro Racing Leagues NASCAR Indy Pro Series IRL Formula SAE Teams University of Cincinnati Carnegie Melon University

8. Sensor Selection Shock Position Sensor The Novotechnik 2841 S0002 100° measurement range 1% linearity http://images.mercateo.com/pdf/Schuricht/SERIE_S P2800_E.pdf Accelerometer Analog Devices ADXL330 +-3g Low power (300 mV) http://www.analog.com/en/mems-and- sensors/imems- accelerometers/adxl330/products/product.html

9. Sensor Selection Wheel Speed Sensor Automation Direct PD1-AN-1A 5000 Hz maximum frequency At 100mph, the wheel spins at 60rpm http://web1.automationdirect.com/static/specs/prox345mm.pdf Oil Pressure Sensor Omega PX32B1 Pressure Transducer 0-2500 psi operating range http://www.omega.com/Pressure/pdf/PX32B1.pdf Steering Position Sensor Novotechnik SP2801 A502 300° operating range http://www.geartronics.co.uk/files/novotechnik.pdf

10. Optional Requirements Improved Battery Exhaust Temperature Oil Temperature

11. Power Consumption cRIO-20W Accelerometer 180 μA - 2.52 mW Oil Pressure - 40mW Brake Pressure – 25mW Rotary Potentiometer – 0.7mW Proximity Sensor – 200mW

12. Comparing Batteries Current Battery ODYSS PC310 Drycell 2.87 AH/kg Possible Alternatives Li Ion 11.4 AH/kg Somewhat volatile

13. Future Tasks Verification and Testing Hardware Software