1. AAE 450 Spring 2008 Nicole Bryan 1/31/2008 Avionics Sensor Selection and Link Budget Analysis

2. AAE 450 Spring 2008 Sensors Avionics SensorUnit PriceVoltage Thermal Sensors~ $10~ 5 V Pressure Sensors~ $100Varies(.5V-100mV) Flow Sensors~ $215~ 110 V (AC) Force Sensors$55, $112100LbF, 1000LbF IMUs~ $400~ 5 V www.Digikey.com This is the start of developing a complete power budget for use in battery selection.

3. AAE 450 Spring 2008 Link Budget Analysis Frequen cy (MHz) Path Length (km) Power Input (W) Vehicle Antenna Beamwidth (deg) Vehicle Antenna Diameter (m) Ground Antenna Diameter (m) 154500 5 3046.6715.5 1374500 5 305.1115.5 4004500 5 301.7515.5 14284500 5 300.4918 20254000 5 350.3015 23004000 10 350.2610 Reference: Justin Rhodes, Nicole Bryan Calculations method: Professor Filmer Assumptions: 8.5 x 10 7 bps data rate 2 dB implementation loss factor 1400 MHz to 1530 MHz Better signal range Feasible vehicle antenna sizes Low power requirements Avionics

4. Possible Radio Frequencies AAE 450 Spring 2008 Reference: FCC - http://www.fcc.gov/oet/spectrum/ Avionics

5. AAE 450 Spring 2008 IMU Avionics IMUWeightG ForceSizeBandwidth Q-Flex ® 71 g250 g25.4 mm dia. X 24.6 mm high >300Hz Cross bows <.59 kg1000g Non- operating 76.2 X 95.3 x 81.3 mm >25 Hz Ang. >75 Hz Accel. Si-Sensing Systems <18 g<1000g18 X 29 X 29 mm 10 Hz Estimate Cost: $500-2000Weight: 12 – 600g

6. AAE 450 Spring 2008 Batteries Estimate Cost: < $10,000 Weight: 2.3-4.5 kg Avionics BatteryWeightWh/kgCost Silver-Zinc (AgZn)2.3-4.5 kg110~$10,000 Lithium- Monofluoride (Li/CF) 2.3-4.5 kg130 -------- Lithium/Thionyl Chloride (Li/SoCl 2 ) 2.3-4.5 kg185 --------