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ATOM™ encoder series

What is ATOM?

ATOM is Renishaw's miniature non-contact optical incremental linear and rotary encoder system. Its innovative design combines miniaturisation with leading-edge signal stability, dirt immunity and reliability. This combination is unique in the market place and represents a significant advance in the performance and reliability of miniature encoders.

ATOM systems are simple to install with integrated LED for signal integrity indication.

A range of interfaces is available including high-performance Ti, Ri and the compact PCB ACi interface.

Website cameo: ATOM readhead

Scale options

  • Linear scales are used where straight-line position information is needed - usually X, Y or Z axes.
  • Rotary scales are used for angular position information and the motion control of rotating elements.

Glass spar 

Pair of RCLC tracks angled
Scale nameAccuracyScale pitch

Thermal expansion

coefficient

Max length of scaleEncoder system
RCLC±3 µm20 µm/40 µm~8 µm/m/°C 130 mmATOM with RCLC
 

Stainless steel tape

ATOM RTLF tracks angled

Scale name

Accuracy

Scale pitch

Thermal expansion

coefficient

Max length of scale

Encoder system

RTLF

40 µm (high accuracy): ±5 µm/m
40 μm: ±15 μm/m
20 μm: ±5 μm/m

20 µm/40 µm

~10.6 µm/m/°C

10 m

ATOM with RTLF

 

Glass disc

RCDM rotary discs various sizes (square)
Scale name

Graduation accuracy

(depending on ring

diameter)

Scale pitch

Thermal expansion

coefficient

Ring diameter

Encoder system

RCDM

±0.5 µm

20 µm/40 µm

~8 µm/m/°C

17 to 108 mm

ATOM with RCDM