Design Meeting - Jul 19, 1994

Attendees

     Mark Cutkosky
     Larry Pfeffer
     JC Reddy
     George Toye
     Joe Wagner

 

What happened?

• It was decided that we order the PS-9XS microvideo camera and the ML-12MM microlens from Supercircuits catalog. It was decided that we will first try to use beam-splitter idea with just a microvideo camera. If the filed of view gets to be a problem, we will change the configuration and stick the camera in the front along with the microlens with a field of view of 18.4 degrees.

• Larry Pfeffer listed all the items that he would need to perform single axis benchtest:
  • computer: available
  • motor: a test crude motor is available. Sam has placed orders for them and they are to arrive.
  • optics: Joe's optical prototype. Need a more rigid support/packaging for lenses and PSD.
  • power supplies: can borrow from MSL (manufacturing systems lab, Stanford), but need to be ordered.
  • software: Larry has to develop.
  • Amps: MSL has electrocraft amps that can be borrowed for the test; but need to be ordered.
  • Encoder board: borrow from MSL; order later.
  • Beacon: HP LED to be ordered.

• Larry Pfeffer mentioned that filters are needed even if we are using modulated light source.
• Larry also mentioned that On-Trak PSD seems to be ok; is giving a better signal than the one he used before, but noise level is also higher. He may need to work on better biasing.
• Laser LEDs should be modulatable between 1 kHz to 10 kHz. Some LEDs may not be, so we should order the ones that are - Larry said.
• Joe will be making some rigid support structure for optics and PSD for the single axis test.
• It is suggested that we video tape the demo when single axis test is ready and running.

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