General information
TR-Electronic GmbH 2012, All Rights Reserved
Printed in the Federal Republic of Germany
Page 42 of 68
TR - ECE - BA - DGB - 0091 - 02
11/15/2012
1.4 General functional description
In contrast to incremental measuring systems, the absolute measuring system
provides the current position value instantaneously. If this measuring system is moved
mechanically in the deactivated state, the current position can be read out directly as
soon as the voltage supply is switched on again.
The TR absolute measuring systems can be supplied in
Single-Turn
or
Multi-Turn
versions depending on the type required.
Single-Turn
This measuring system resolves
a single revolution or turn
of the drive shaft into
measuring increments (e.g. 8192). The number of measuring increments per
revolution is recorded and calculated via a magnetic scanning unit. This measured
value is output via different interface modules depending on the type of interface used,
and is repeated after each revolution.
Multi-Turn
Besides the angular positions per revolution, multi-turn measuring systems also
record
multiple rotations or turns
. The drive shaft is connected to an internal
reduction gear via which the number of revolutions is recorded.
In the case of the multi-turn measuring system, the measured value is thus composed
of the
angular position
and the
Number of Revolutions
. The measured value is
also calculated and output via different interface modules depending on the type of
interface used.
Principle
Figure 1: Functionality of the measuring system