1.
Features and Applications
Position encoders in drive systems have to meet high and controversial demands, especially in linear
drive systems� The demands opposing each other are high accuracy and resolution on the one hand
and low mass, small dimensions and high measuring speed on the other hand�
•
The graduated scale is definitive for the quality of a linear encoder. Requirements for maximum
position deviations of ±2 μm per meter or less are no rarity. The emphasis is mostly on the
avoidance of shortrange errors, since long-range errors, mostly linear error components, can often
be compensated�
• The concentration of multiple axes in motion in very tight spaces, such as in semiconductor-
producing machines, requires the miniaturization of the drives, guideways and encoders�
• High machining speeds and therefore high accelerations make low masses of the components in
motion essential�
The Kit L incremental encoders from NUMERIK JENA are equipped with features which are supposed
to fulfill these high requirements in an ideal way.
• Due to an interpolation circuitry which is integrated in a 15-pin D-sub connector, a resolutions down
to 50 nm is possible without any additional electronics�
• The permissible traversing speed for a sinusoidal signal output amounts to 10 m/s� A Square wave
signal output with a resolution of 0.1 μm allows a permissible traversing speed of 1.6 m/s.
•
The short-range position errors (interpolation errors) were significantly reduced by introducing an
electronic compensation of amplitude and offset deviations of the coarse signals. This compensation
functions without following error in all velocity ranges�
•
The Kit encoder series was especially developed for customized applications and offers a large
variety of configuration possibilities.
Additional features:
•
Compact size and ultra flat design
• Customizable sensor frames and housings available
•
Reference signal(s) with repeatability accurate to a specific increment, regardless of the direction
from which the reference mark(s) is/are traversed
•
Special, easy to mount scale tapes (SINGLEFLEX and DOUBLEFLEX) for a variety of applications
and ambient conditions
•
Possibility of electronic signal adjustment (signal optimization after mounting)
Applications:
• Production and inspection machines for the semiconductor industry
• Linear units, drives and coordinate tables
• Measuring machines and measuring microscopes
• Positioning and measuring devices for medical technology
• Precision devices for reprography
• Precision machining
• Robotics
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KIT
L
-Series
