ELGO Electronic LMIX22-007, Руководство по эксплуатации

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Product Features
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5.3 Functional Principle
The basis of the magnetic incremental encoders consists of a scanning technology, which scans the north and
south poles on the coded magnetic tape and produces a single Sine/Cosine wave for each pole. The complete
sine/cosine signal process is interpolated electronically. Depending on refinement of the interpolation, together
with the pole distance of the magnetic tape, the resolution of the measuring system is determined.
A special evaluation electronic (translator) processes the sine/cosine wave into square output signals from the
signal information of the magnetic tape. These square signals are equivalent to conventional optical rotary- or
linear encoder outputs.
The translator circuit of the LMIX22 measuring system is already integrated in the sensor head.
Figure 1: Magnetic Tape
5.4 Pulse Diagram
Figure 2: Pulse diagram
N N S S N N N N S S S S N N S S N N S S N N N N S S S S N N S S
B
B‘
Z
Z‘
A
A‘
The channels A and B are phase
shifted by 90 degrees.
The index pulse output occurs
periodically every 5 mm or op-
tionally as a free definable refer-
ence pulse (R / R’).