On 2010-08-03, Wes wrote:
Tim Wescott wrote:

On 08/02/2010 06:48 PM, Ignoramus18921 wrote:
On 2010-08-03, Tim wrote:
On 08/02/2010 04:50 PM, Ignoramus18921 wrote:
Lots of new pictures here.

[much snipping]

Tim, how much angular accuracy could I get from this resolver, in
pulses per revolution?

Um -- pretty damn good?

It's hard to say, because it varies with the resolver. But I'd expect
anywhere between one and ten minutes of an arc (no, you don't get
dimensions in degrees, or counts, when you're dealing with resolvers).
Resolvers that do better than that generally go to "multi-speed" units,
with a "high-speed" resolver that repeats itself 8, 16, or 32 times
around the circle, and a "low-speed" (1x) resolver to tell you what
quadrant of the high-speed resolver you're looking at.


Iggy has a resolver, is it safe to say that an Inductosyn linear scale is the same type of
device? I'm curious since I have a sick id od grinder at work that still has some issues
after replacing the sliding head for the scale.

Jon might know, I have no clue. Who made that Inductosyn?