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SRP-4 - Electrical
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Description |
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The flight computer samples the analog output voltage from the data producing instruments on the palyoad. Then it makes data packets form this info and sends these packets to the transmitter. |
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The S-band transmitter sends all data collected by the rocket to a data archive station on the ground via four externally mounted patch antennas. |
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The patch antennas convert the output signal form the S-band transmitter into electromagnetic waves that propagate from the rocket to the receiving station on the ground.
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The power splitter evenly distributes power from the transmitter into four patch antennas. |
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The EED board electronically activates the pyrotechnic devices required to separate the motor from the payload adn to deploy the parachute recovery system. |
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The GPS determines the rocket's position and sends this data to the flight computer |
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The accelerometer board measures x,y, longitudinal, radial, and tangential accelerations and sends them to the flight computer. |
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The flight instrumentation board contains a pressure sensor, an ambient temeperature sensor, and a thermocouple for measuring payload skin temperature. |
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The sun sensor, designed and fabricated by students at Tokai University, provides payload and attitude data. |
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The power board converts the voltage level from the battery pack into the voltage levels required by the cicuit board used on the payload. |
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The battery pack provides power for all the electrical components of the rocket. |
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The 3-axis magnetometer, fabricated by students at Tokai University, is used for attitude determination and detecing perturbations in the magnetic field caused by current systems in the plasma. |
Radio Receivers |
The radio receivers in conjunction with the loop antenna will be used to determine the plasma cutoff frequenncy. This provides a calibation point to reference the relative measurements from the probes. |
Ion and Electron Probe
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The probes will be used to map the relative ion and electron densities in the D-Region of the ionosphere |
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Shielded data cables transfer analog data from the flight computer for sampling. |
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The anti-aliasing filters prevent the sampled data from being corrupted by alaising |




















