Principle Of Operation; Part Number - Control Techniques UD52 User Manual

1.2

Principle of operation

The UD52 converts the sinusoidal output signals of a
square waves and counts the edges (as in the case of a standard encoder) to
yield position counts at a rate of four times the number of lines per
revolution of the encoder. The constantly varying amplitudes of the sine
waves are also measured by the UD52 in order to produce 2
interpolated counts between encoder lines.
The overall resolution is the product of the number of interpolated counts
and the number of encoder lines. For example, the UD52 used with a
512-line (2
revolution).
2
9
) encoder can give a resolution of 2
- encoder into
SIN COS
11
(2048)
20
(1 048 576) counts per
UD52 User Guide
Issue code: 52nu3