On Thu, 21 Sep 2017 21:42:21 -0700, mike wrote:

On 9/21/2017 9:05 PM, Jeff Liebermann wrote:
On Thu, 21 Sep 2017 20:59:03 -0700 (PDT), wrote:

simple but time consuming producing a new dial paper
NT

"The Windows programs for drawing analog meter scales"
http://www.tonnesoftware.com/meter.html
$35 for the full version.

I haven't seen the system requirements, but I'd wager that
the precision measurement desired is never entered into
any other system/program. The desired functionality
could be obtained by a Sharpie mark or two on the face of the meter.

One of the difficult engineering skills to acquire is the ability
to match the solution to the actual problem. Overkill is rampant.
It's what you do when you don't understand what you need, but you
start building it anyway.

If you need precision, you don't want an analog meter.

In college (about 1969), I build an "electronic slide rule" in the
form of an analog computer inside a brief case. Inside, it was two
log amps, a multiplier, range switch, and an anti-log amp. Input was
via two Bournes Helipot 10 turn pots (linearity 0.1%). Output was on
a mirrored scale analog panel meter about 6" in width. Accuracy was 3
decimal places in the lower part of the meter, and 2 decimal places
over the rest of the scale. However, I had to use temperature
compensation tables for the pots, multipliers, and amps to obtain that
level of accuracy.

What level of precision were you expecting?

--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558