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Pre-amp. Mechanical and Electrical Design

Pre-amp. Mechanical and Electrical Design. A. Bouabdellah. Electrical Diagram. No major design change on the P.A. from EPR: Calibrator Amplifier Power regulator Only one calibration command (SCM_Cal). SCM_Cal. B signal. PCB.

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Pre-amp. Mechanical and Electrical Design

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  1. Pre-amp. Mechanical and Electrical Design A. Bouabdellah

  2. Electrical Diagram • No major design change on the P.A. from EPR: • Calibrator • Amplifier • Power regulator • Only one calibration command (SCM_Cal) SCM_Cal B signal

  3. PCB • FM will be rerouted because of an error in the footprint of a component. • Amplifier cubes too close to the connector: Increase housing?

  4. PCB

  5. Preamplifier housing • Aluminum Alloy 2618A • Screws Inox A2 • Surface treatment: Alodine 1200 Yellow • Mass: 85 g • Overall dimensions: 94.9 x109 x 30.1 mm • EM – Slight damage, a new box is being manufactured.

  6. P.A. Mech Interface X Y

  7. P.A. Mech Interface 1mm clearance

  8. P.A. mass Total P.A. 195 g (PCB not yet coated)

  9. Antennae mass • Search coils masses: • Structure mass (calculated): 181 g • Connector, cables: ~80 g Total S.C. mass: ~586 g without MLI

  10. Power and mass summary

  11. Interface model • J02 connector: Interface signals to IDPU compatible with flight models. • Bx, By, Bz: External stimuli signals • 2 LEDs power and Cal ON Bx Power By J02 To IDPU Bz Cal

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