NSFCAM2 Hall Sensor Retrofit for Cvf

1
NSFCAM2Hall Sensor Retrofitfor Cvf Filter
Wheel

• Date first created 05/08/03
• Date last modified 05/09/03

2
Cvf Filter Wheel Existing Designs

• Both mechanisms are used now in Nsfcam and will
  be reused in Nsfcam2
• The Cvf Wheel is an anti-backlash mechanism. It
  uses a commercial Anti-Backlash Worm Wheel with
  scissors spring. (like the K-Mirror Rotator in
  Spex)
• The Filter Wheel is also an anti-backlash
  mechanism. The design used here consists of 2
  Internal Ring Gears that are preloaded against
  each other,thereby eliminating backlash.
• The design used for the application of the Hall
  Sensor will be the same as was used in the
  Grating Turret in Spex
• Both the Cvf Wheel and the Filter Wheel will each
  have 3 magnets that are located out toward the
  edge of the wheel

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Cvf Wheel Drive
Access HallFilter Cover
Filter Wheel Drive
Single30 Mount
Hall Sensor Filter Wheel
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Hall Sensor For Cvf Wheel
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Access to Halls Filters from outside
Connector For Hall Sensors On VJ
N2K-2102