The term angle encoder is typically used
to describe encoders that have an accuracy
of better than ± 5" and a line count
above 10 000.
In contrast, rotary encoders are encoders
that typically have an accuracy better
than ± 10“.
Angle encoders are found in applications
requiring precision angular measurement
to accuracies within several arc seconds.
DR. JOHANNES HEIDENHAIN GmbH develops and manufactures linear and angle encoders, rotary encoders, digital
readouts, and numerical controls.
HEIDENHAIN supplies its products to manufacturers of machine tools and of automated machines and systems, in
particular for semiconductor