EGOR Output Signal Survey

[bcroe at juno.com]

If you have a good digital display, some might want
to add it to the properly scaled output.  Are you thinking
about an off the shelf digital unit?  A liquid crystal unit 
might be low enough powered to steal from the EGOR
supply.  $2 to $4 sounds great.

On Wed, 16 May 2001 21:58:24 -0700 "Bob Wooten" <r71chevy at earthlink.net>
writes:
> Personally I would prefer a digital display, but that's just me I 
> want to
> see a number not look @ a bulb & have to figure out where I am.  we 
> have
> them @ work & they are a simple 0 - 1 vdc (or 0-2, or 0-5 etc) input 
> that
> run off of a 5vdc source.  I just made a simple circuit using an 
> op-amp to
> control offset & gain for a flow meter project.  it allowed me to 
> change the
> zero point of the meter (It had an offset @ the bottom end) & the 
> slope @
> the top end (it was a bit non linear, in its output).  I would 
> imagine some
> thing like this w/reference to real ground so I don't have to use a 
> negative
> offset voltage, would work fine for this type of app.  I seem to 
> recall
> someone suggesting something like this circuit earlier (about a 
> month or two
> ago).  I think that the displays that we buy are $2 or $4 each.
> 
> I would also like some form of analog output signal that I can put 
> to a data
> logger.  0-1 would again work perfect.
> 
> I am thinking that taking the final stage of the meter 
> & splitting it to a display & analog output circuit would
> work but if I recall correctly would add about 50% hardware
> to the existing design.  a necessary evil if you ask me.  

Lets see your design ideas.


> Even though it works as is, we have to be able to interface
> to it, & the more simple the better (KISS applies here).  if 
> anyone is interested I can draw up what I have & submit 
> it for a "design review" for those interested.  Oh yea, for 
> my needs I don't care where Stoch is.  the display
> will tell me & so will the data logger.
> 
> My2c.
> BW

Thanks for the ideas.   Bruce Roe
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