On 2/22/21 7:55 AM, andy pugh wrote:
On Sun, 21 Feb 2021 at 18:17, nkp216 <[email protected]> wrote:
How to calculate the accuracy of the resolver?
In terms of linearity or in terms of resolution?
Resolution is hard to quantify, as they are analogue devices, so the
accuracy is dependent on the measurement device, not the sensor.
The Mesa 7i49 anual, for example states " The 7I49 has approximately
14 bits of resolution and 12 bits of absolute accuracy."
So that is approximately equivalent to a 4096 count encoder, for a
single-pole resolver. But higher for a multi-pole resolver. (the
resolver pole count often matches the motor pole count)
Thanks Andy,
You noticed I dodged that part of the question. ;-)
D
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