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SRP-4
Part |
Description |
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Nosecone |
The nosecone is made of fiber glass which if RF transparent |
Payload Frame
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The payload frame consists of 4 longerons and 5 decplates. The deckplates provide mounting area for the SRP4 electronics, and the longerons hold these deckplates in place. |
Deckplates
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Each aluminum deckplate provides a mounting structure for payload electronics |
Longerons
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The longerons form the mechanical frmae that hodls the deckplates together |
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The umbilical block allow access to electrical connections inside the payload tube. |
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The parachute deckplate attaches the parachute to the payload tube |
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The parachute recovery system ewill lower the payload without damaging it. The recovery system consists of a drag plate, a 6 ft guided surfacr drogue chite and a 33 foot cross main chute. |
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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 |




























