Optical Encoders | SLE Series

The SLE-35 high resolution linear encoder is a non-contact, high resolution miniature incremental linear encoder that provides two counting channels in quadrature (called A and B) as output signals. The two output waveforms are 90 degrees out of phase and indicate both position and direction of movement:

For example, if channel A is in front of channel B, the movement is from left to right on the scale when looking at the pattern side of the scale. Otherwise, if B is in front of A, the movement is in the opposite direction. This encoder is available with a resolution of 0.1 and 0.05 micron.

Features

• Light source: Light emitting diode
• Light sensor: AEDR Optical Asic
• Resolution after quadrature: 0.1um or 0.05um
• Output format: RS422 differential line driver output. Two counting channels A and B in quadrature with an optional ZR output.
• Quadrature specification: 90° ±45° at maximum conditions
• Rise and fall time: 1µs max. at 1000 pF load
• Travel: Up to 150 mm as standard

Contact us for information on longer lengths.

Please note: The encoders are not available as single components but only in combination with a drive.