SLE Series Linear Encoder

The SMAC SLE-35, High Resolution linear encoder is similar in mounting to other industry standard enclosed linear encoders. This model is a miniature non-contacting high-resolution incremental linear encoder, which delivers two count channels in quadrature (called A and B) as output signals. The two output waveforms are 90 degrees out of phase and indicate both the position and the movement direction: when Channel A leads Channel B, for example, then the movement is from left to right of the scale when viewing the pattern side of the scale. Otherwise, if B leads A, then the displacement is in the opposite direction. This encoder is available in 0.1and 0.05 micron resolution.

• Light Source: Light Emitting Diode
• Light Sensor: Optical ASIC
• Resolution after quadrature: 5 and 1 micron
• Output Format: Differential RS422 line driver output. Two count channels A and B in quadrature with an optional ZR output
• Quadrature spec.: 90° ± 45° at maximum conditions
• Rise and Fall Time: 1 µs max., with 1000 pF load
• Travel length: up to 250mm (special lengths available on request)