1 / 7

Interface Requirements

Interface Requirements. Abdelkrim Bouabdellah. Interface Requirements. Mechanical Interface Pre-amplifier:. 100 mm. M4. 74 mm. Interface Requirements. Mechanical Interface Boom interface:. 40mm. M5. 72mm. Interface Requirements. M. L. I.

odette
Download Presentation

Interface Requirements

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Interface Requirements Abdelkrim Bouabdellah

  2. Interface Requirements • Mechanical Interface • Pre-amplifier: 100 mm M4 74 mm

  3. Interface Requirements • Mechanical Interface Boom interface: 40mm M5 72mm

  4. Interface Requirements • M. L. I. • A thermal blanket will allow the antennae to remain between –100 °C and +80 °c • It will also act as an electrostatic protector

  5. Electrical SCM Pre-amp 100 DFB x3 C1 C2 +10 v AGND -10 v Interface Requirements • 3 analog signals • +/-5 v swing • .25Hz – 4 KHZ • 2 digital signals • C1 and C2: • Vih=2.4 v min • Vil= 0.8 v max • 3 power lines • Ripple < 1% • AGND = DGND • But N.C. to Structure

  6. Interface Requirements • EMC • Conducted noise will be measured on the spacecraft • Radiated magnetic field at sensor level should not exceed: • < 1 pT/sqrt(Hz) at 10 Hz • < 0.1 pT/sqrt(Hz) at 1 KHz

  7. Interface Requirements • Calibration: operational concept • Used to check the transfer function by sending a triangular wave to the instrument. • Once every orbit for 30 sec • Control signals: • C1 = 1 for 30 sec, then = 0 • C2 always 1. Used to turn off the cal, in case switch 1 gets stuck in ON position.

More Related