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HEIDENHAIN
angle encoders are characterized by high accuracy values in the arc second
range and better. These
devices are used in applications such as rotary tables, swivel heads of
machine tools, dividing apparatuses, high-precision angle measuring tables,
precision devices in angular metrology, antennas and telescopes.
Features:
- Line
counts typically 9000 to 180000
- Accuracy
from ± 5" to ± 0.4"
- Measuring
steps as fine as 0.000 005° or
0.018" (incremental) or 29 bits, i.e. approx. 536 million positions
per revolution (absolute)
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Three
different mechanical design principles:
Angle
encoders with integral bearing... (Details)
Angle
encoders with integral bearing, hollow shaft and integrated stator coupling
Because of the design and mounting of the stator coupling, it must only
absorb that torque caused by friction in the bearing during angular
acceleration of the shaft. RON, RPN and RCN angle encoders therefore
provide excellent dynamic performance.
With an integrated stator coupling, the stated system accuracy also
includes the deviations from the shaft coupling.
Further advantages:
-
Compact
size for limited installation space
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Hollow
shaft diameters up to 100 mm for leading power cables, etc.
-
C
axes on lathes
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Simple
mounting
Angle
encoders with integral bearing, for separate shaft coupling
ROD angle encoders with solid shaft are particularly suited to applications
where higher shaft speeds and larger mounting tolerances are required.
The shaft couplings allow axial tolerances of ± 1 mm.
Angle
encoders without integral bearing...(Details)
Angle
encoders without integral bearing
The ERA and ERO angle encoders without integral bearing (modular angle
encoders) are intended for integration in machine elements or apparatuses.
They are suited for the following requirements:
-
Large
hollow shaft diameter (up to 10 m with a scale tape)
-
High
shaft speeds up to 40000 rpm
-
No
additional starting torque from shaft seals
-
Segment
solutions
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