Miniature Linear Scale Squeezes Into Tight Spaces
Numerik Jena's Kit L4 encoder is a minimum configuration of a length-measuring system for applications where installation space is tight. It is now available in North America through Heidenhain Corporation. The flat encoder allows for wide mounting tolerances and a pre-alignment of the measuring module in an optional mechanical frame for user-friendly installation.
Typical applications include instruments and machines used in the microelectronic industry, X-Y and piezo stages, precision devices and medical systems. The kit is based on the miniaturized and multifunctional Epiflex measuring module from Numerik Jena and on graduated scales. The scales are scanned in reflected light.
The Kit L4 encoder offers high resolution up to 50 Nm, measuring speed up to 10 m/s and absolute accuracy up to 1 µm per meter. After mechanical installation, electronic signal adjustment is possible to optimize measuring module output. This can result in a reduction of the interpolation error and activation of functional reserves.
Two patented versions of the Kit L4 scale tape are available. A singleflex scale tape is for more basic applications where thermal expansion behaviour is the same as steel. A doubleflex scale tape is for applications with higher accuracy requirements and measuring lengths longer than 100 mm. The doubleflex system allows for mechanical isolation of the scale tape from the tape carrier for well defined thermal behaviour. The Numberik Jena Kit L4 is available in various frames, as well as custom options. Signal interfaces offered are TTL or 1 Vpp.
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