Subject: FW: BCS
Date: Thu, 19 Jul 2001 18:34:34 -0500
From: "Kaufman, Tom" <Tom.Kaufman@mts.com>
To: "Larson, Rod" <Rod.Larson@mts.com>
CC: "Sunderman, Marlin" <Marlin.Sunderman@mts.com>, "Larsen, Carl"
     <Carl.Larsen@mts.com>

Rod:
I think I will be in tomorrow,  but not until toward 10:00.  You can
leave message on my phone if I am not here.  I will check it from home.
I agree with your comments about strain gages---if they don't work
tomorrow,  then we need to let them work it out.  If the system is
working in load, then Pat should be able to actually run the system
(next couple of weeks or more) in load and test all the gages in a slow,
but real test. Do you think Pat would be able to plot out some strain
data, prior to our coming back??   What is your schedule in August??

> -----Original Message-----
> From: Rod Larson [SMTP:rod.larson@mts.com]
> Sent: Thursday, July 19, 2001 5:59 PM
> To:   Kaufman, Tom
> Subject:      BCS
>
> Tom,
> Got valves balanced and ran the pseudo-M1 profile quite well today.
> Used only 200 lb pre-load and the system ran pretty well.  Achieved
> about 5-10% time history errors at 30 second time.  Doubling test time
> to 60 secs resulted in 2-3% errors.  So.....I think we have the rig
> running pretty well.  Hooked up all 18 strain gages thru ATC stuff cuz
> we don't have bridge completion resistors on our DC Conditioners (we
> could do it, but this approach was faster).  Bad news on strain gage
> #1
> - definitely have a hook-up cuz of noise and offset that changed
> linearly w/ excitation, but no dynamic signal.  Ran out of time today,
> but will check out other 17 gages tomorrow morning and then will
> decide
> on course of action.  Pat agreed that if many gages are bad, then I
> should go home cuz it will take quite a while to obtain that many
> replacements and get them installed.  He says if everything on-site,
> it
> takes at least 2 hours/gage.  He knows that he does not have 18 gages
> right now or the man-power available to install them next week.
> Otherwise, he's pretty happy w/ how the machines running.  The notch
> filters have killed the oil column squawking, so stability is not
> really
> a problem now.  He stood up on top and watched the 100% pseudo-run and
> said it looked REALLY GOOD.
>
> I will let you know about strain gages.  I might even try to call your
> desk tomorrow.
> Rod
>
