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Thread: PC HDD shutter

  1. 01-14-2009, 01:42 #1
    RGbee's Avatar
    RGbee
    RGbee is offline Senior Member
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    Default PC HDD shutter

    I’ve searched PL for references to the following. Couldn’t find any. Has anyone seen this before? http://optics.ph.unimelb.edu.au/atomopt/shutter/shutter.html
    Modifying an old P.C hard drive voice coil actuator for use as a TTL triggered high speed shutter.
    I’m not sure of the specs for the GM-20 (25m/s?) but for the HDD voice coil, the total close time appears to be less than 20 ms.
    More links:
    http://optics.ph.unimelb.edu.au/atomopt/publications/shutter_rsi75_p3077_2004.pdf
    Attached Thumbnails Attached Thumbnails HDD_shutter.jpg  

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  2. 01-14-2009, 02:39 #2
    FourDee
    FourDee is offline Senior Member
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    I've seen that one somewhere
    The problem is that the GM20 is spring loaded, so the hold current will have to be larger that with this device
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