[OM] Re: Olympus Image Stabilization

Subject: [OM] Re: Olympus Image Stabilization
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Tue, 08 Apr 2008 13:47:09 -0400
I think it goes back a lot farther than that.  This baby certainly had 
flex cables on the heads.  With the right access pattern the heavy, 
hydraulically actuated read/write heads were prone to setting up a 
sympathetic side-to-side vibration that could cause the machine to try 
to walk across the floor.  I've seen one break its 400 volt power cable 
when it started to walk before I could stop it.  But I don't think it 
broke flex cables on the heads.  I operated one for a year in 1965/66. 
It was part of a manufacturing control system which operated pretty much 
24/7.  I don't recall any other failures beyond the stretched power 
cable and a burned circuit board caused by contaminated water from the 
A/C system on the floor above dripping through a crack in the floor and 
into the machine.  The cat's meow.  25-28 million characters (not bytes) 
storage capacity and it only cost $2,100/month on lease.  Woo hoo!

Chuck Norcutt

Mark Dapoz wrote:
> On Tue, 8 Apr 2008, Winsor Crosby wrote:
>> Sorry I was not more clear. I have puzzled over how to get the data
>> off a sensor that is moving around. It seems like the usual flexible
>> cable connected to the analog to digital converter and image
>> processing chip would eventually have flex failure problems. Just
>> wondering how they get around that. Or is the movement so small
>> fatigue is not a factor?
> I doubt the flex cable is a problem.  How many times have you seen a
> CD/DVD rom fail due to a bad flex cable?  That technology is quite old
> and is likely very mature by now.
>                                               -mark

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