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ATOM™ encoder series

What is the ATOM encoder?

The ATOM series is Renishaw's miniature non-contact optical incremental encoder system suitable for linear and rotary applications. Its innovative design combines miniaturisation with leading-edge signal stability, dirt immunity and reliability. This represents a significant advance in the performance and reliability of miniature encoders. This encoder is also the fastest in its class, with maximum speeds up to 20 m/s.

ATOM systems are simple to install with integrated LED for signal integrity indication. They are compatible with Renishaw's ADTpro-100 diagnostic tool.

A range of high-speed interpolator solutions is available, including the Ri interface, the high-performance Ti interface and the compact PCB-style ACi interface, offering digital output with resolutions down to 1 nm.

Miniature analogue encoder

Illustration of miniaturisation

ATOM is a miniature fully featured analogue encoder for space constrained applications. External interpolator interfaces are available with resolutions down to 1 nm.


Flexible printed circuit (FPC) readhead variant

Illustration of flexible printed circuit (FPC)

The ATOM readhead is also available as a flexible printed circuit (FPC) variant with a reduced Z-height which helps to reduce the overall package size. The FPC output also gives customers the freedom to design their own cabling for easy routing.


Reliable position measurement

Illustration of reliability

Due to Renishaw's unique filtering optics design, ATOM encoders offer reliable position measurement through excellent signal stability and dirt immunity.

Find your ATOM scale option

Linear

Scale typeScale nameAccuracy

Scale pitch

Thermal expansion coefficient at 20 °C

Scale max length

Glass spar

RCLC scale
RCLC ±3 µm/m20 µm/40 µm~8 m/m/°CUp to 130 mm
RTLF20 scale

Stainless steel tape

RTLF

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

20 µm/40 µm

~10.6 m/m/°C

Up to 10 m (> 10 m on request)

Narrow stainless steel tape

RKLF linear scale
RKLF-S

40 µm (high accuracy): ±5 µm/m

40 µm: ±15 µm/m

20 µm: ±5 µm/m

20 µm/40 µm

Matched to substrate material when scale ends are fixed with end clamps

Up to 10 m (> 10 m on request)

Partial arc

Scale typeScale nameAccuracy

Scale pitch

Coefficient of thermal expansion at 20 °C

Scale max length

Narrow stainless steel partial arc tape

RKLF partial arc scale

RKLF-S

±15 µm/m

40 µm

10.1 ±0.2 μm/m/°C

Up to 10 m (> 10 m on request)

Rotary

Scale typeScale name

Graduation accuracy

Scale pitch

Coefficient of thermal expansion at 20 °C

Disc outer diameter

Glass disc

RCDM scale

RCDM

±0.5 µm (disc ø up to 100 mm)

±0.7 µm (disc ø over 100 mm)

20 µm/40 µm

~8 µm/m/°C

17 to 108 m

CENTRUM stainless steel disc

CENTRUM™ CSF40 scale disc

CSF40±0.5 µm

40 µm

15.5 ±0.5 µm/m/°C

Fixing options:

Bolts: 38.4 mm to 120 mm

Clamp: 31 mm to 120 mm

For other sizes, contact Renishaw

Optional Advanced Diagnostic Tool ADTpro-100

ADTpro-100 Advanced Diagnostic Tool on a white plinth

The ADTpro-100 is a handheld, standalone encoder diagnostic tool featuring an integral colour touch screen. It assists in system set-up and planned maintenance to help minimise unscheduled machine downtime. The ADTpro-100:

  • Requires no computer or additional set-up equipment to display comprehensive real-time encoder information.
  • Is easy and intuitive to use with plug-and-play functionality to aid system set-up and calibration.
  • Interfaces with the optional ADT View computer software. ADT View can be used to update the ADTpro-100 firmware.
The ADTpro-100 is ideal for aiding system optimisation and diagnostics, particularly for installations when the readhead LED is not visible. It can be used standalone or in-line, connected between the readhead and the controller as part of the control loop.