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Numerik Jena: Absolute Linear Encoder (Kit LA Series)
Our exposed linear encoders consist of a scanning head and a scale tape. These measuring systems are basically characterized by the following main features:
The users slide system takes over the steering between the scanning head and the scale tape
Possibility of an electronic adjustment after mounting to reduce static mounting errors
Kit version for customer-specific housings/frames (available on request)
Scales are available in steel and various types of glass
Individual measuring lengths of the scales available (up to 1.24 m)
Special vacuum version available
Several interfaces usable
Wide range of supply voltages to compensate conduction losses
Extensive diagnostic and monitoring functions (e.g. read head temperature)
High control dynamics due to low calculation time
Two absolute tracks and two incremental sensors ensure high contamination immunity
Defined thermal behaviour supported by our DOUBLEFLEX scale tapes
Typical fields of application:
Production and inspection machines for the semiconductor industry
Linear units and linear drives
Coordinate tables
Measuring machines and measuring microscopes
Robotics
Precision devices in reprography
Precise machining
Positioning and measuring devices in medical technology
Kit LA Features:
The Kit LA Series catapults absolute measuring into a new dimension. This encoder was especially designed for applications with especially customized requirements. These systems are not only extremely small, they are also particularly configurable. Your ideas won't be hardly limited with this series.
Special Kit-version of the LAK encoder
Customized housings and sensor frames available
High resolution up to 78 nm (w/o additional electronics)
High traversing speed up to 10 m/s
Automatic signal adjustment after mounting possible with a high number of analysis options via ABSOFLEX software
Stainless Steel Scales
The SINGLEFLEX-scale tape consists of a single stainless steel tape with an applied incremental track and one or more reference marks or a PRC code. The scale tape is equipped with a double-sided adhesive tape and can be mounted easily on the machine element.
The DOUBLEFLEX-scale tape consists of two superimposed stainless steel tapes. Both of them are divided by a tension uncoupled sheen of oil which ensures the adhesion between the steel tapes. The incremental track and one or more reference marks or a PRC code are applied on the upper steel tape. The lower steel tape is equipped with a double-sided adhesive tape and can be mounted easily on the machine element.
The two steel tapes are uncoupled mechanically. This ensures that the upper steel tape can expand independently of the lower steel tape due to thermal variations of the ambient temperature. By reference of the ambient temperature and the expansion coefficient of the steel tape it is possible to determine occurring length deviation of the increments. This allows you to subtract out the deviation of the measurement results.
Glass Scales
For applications with special environmental conditions (e.g. magnetic fields, heat sources, vacuum, etc.) or for special demands on the dimensions we also offer scales made of glass.