Re: Obama doesnt want you to know the real truth about Global Warming

On Tue, 29 Sep 2009 09:11:36 -0700 (PDT), Bill Sloman
<bill.sloman@xxxxxxxx> wrote:

On Sep 29, 2:40 am, dagmargoodb...@xxxxxxxxx wrote:
On Sep 27, 6:37 pm,Bill Sloman<bill.slo...@xxxxxxxx> wrote:

That's not auto calibration, that's just replacing trim pots and screw
drivers with digital pots and an eprom programmer.

Bill you're just being tedious.  Autocalibration is soooo 20th
century--we just don't feel the need to discuss it.  That doesn't mean
we don't do it.

You may do it as a matter of routine, although your personal database
doesn't show much sign of having been up-dated recently. John Larkin
doesn't seem to be entirely at home with the concept.

I'll do whatever works. Lately we've been moving entire nonlinear
channel calibration algorithms into FPGAs. But I'm not "entirely at
home" with building primary standards into measuring instruments, or
taking them offline for self-test or recal without an explicit command
from the user to do so. Even if I could do that transparently, my
customers *really* wouldn't like their gains an offsets being changed
invisibly, mid-run.

That's the problem having customers, I guess. It must be be very
liberating to have no customers.

Some customers need certified data: confirm cal before a run, take
data, confirm cal after. The idea of continuous calibration is messy
there. The only things you might get away with would be tweaking
dimensionless things, like auto-zero or some such.

Our newer VME modules have a relay per channel and a test connector
(upper D9 in this case)

http://www.highlandtechnology.com/DSS/V450DS.html

so the customer can bus all the test connectors to a
tracable-calibrated DVM or whatever. He can pull in a relay and route
the channel to the cal instrument without disconnecting the field
wiring, making it a software-only thing to verify the cal of the
entire system, every morning if he wants. Why use relays? Because
Pratt&Whitney told us to use relays.

John


.

Relevant Pages

  • Re: Obama doesnt want you to know the real truth about Global Warming
    ... home" with building primary standards into measuring instruments, ... standards in every instrument. ... liberating to have no customers. ... Our newer VME modules have a relay per channel and a test connector ...
    (sci.electronics.design)
  • Re: AND-ing access rules
    ... by means of sendmail access rules: ... RELAY ... Lets say the customers using domain2.com chooses to use an external ... And mailscan.com will forward the scanned mails to mxgw.mydomain.com. ...
    (comp.mail.sendmail)
  • Re: [fw-wiz] Allowing relay through Watchguard Firebox 1000
    ... > users can reply to messages from other employees, but cannot relay mail from ... They're sending mail from their cell phones, ... with a forward path of their customers? ... Paul D. Robertson "My statements in this message are personal opinions ...
    (Firewall-Wizards)
  • Re: Spam to local recipients
    ... # explicitly allow connection from "good" IP addresses ... IF you server should relay messages submitted using SMTP AUTH THEN use FEATURE. ... I'll just have to have those customers convert to SMTP AUTH if not...thanks again. ...
    (comp.mail.sendmail)
  • [RFC Patch 0/1] Merging Documentation/trace.txt with Documentation/filesystems/relay.txt
    ... +Enhanced Relay interface using debugfs -- Relay debugfs ... +When per-CPU buffers are used, relay creates one debugfs file for each ... +When a 'relay debugfs' channel is created and started, ...
    (Linux-Kernel)