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Ev Archive for March 1999
1534 messages, last added Wed Aug 08 18:44:43 2001

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Re: EV-100, Fiber optics sensor power and signalling



Thank you for participating in this discussion. 

Your suggestion is very interesting, but *BUT* we are attempting to get
something close to a MONITORED TRIP RECORDER in use ASAP, at the
*LOWEST* possible cost and as simple as possible. 

Of course, the use of a *STANDARD* board on what we will define as the
*STANDARD EV-100 BUS* will allow us to swap-out an older card for a
newer card, at lower costs *LATER* at some future time.

You have a lot to contribute to the EV-100 SYSTEM BUS at this time, and
I hope you will!

Bill Neill.

--- GCJeffrey@aol.com wrote:
> Subj:	 EV-100 POWER ON BOARD
> 
> 
> Prof Bill Neill
> 
> 
> Have you considered using fiber optics
> powered and signalling sensors?
> 
> Having worked for years with industrial
> sensors and controls, mixing high voltage
> DC with low voltage DC is not good.
> 
> Fiber optics sensors eliminate ground
> loop problems, eliminate accidental
> cross overs between systems and
> reduce explosion hazards.
> 
> 
> e.g. individual battery voltage or temp. sensors:
> 
>                   Wires          Fiber Optic
>                                      cables
> >From battery---- Sensor<---------------- Light
> source
>                   +++ at        ---------------->
> Signal to EV-100
>                          Battery
> 
> George C. Jeffrey BS ChE
> Endocrinology-Toxicology
> Process Control
> Hazardous Operation Studies
> 
> GCJeffrey@aol.com
> (904)564-2620
> P.O. Box 11622
> Jacksonville FL 32239-1622
> 
> 


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