L-9517-9563-06-A_Data_sheet_ATOM_en.pdf

#renishaw www .renishaw .com/atomdo wnloads Data sheet L-9517-9563-06-A A T OM ™ is the world’ s rst miniature encoder with ltering optics, providing impr ovements in dirt immunity , signal stability and reliability fo…

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Data sheet

L-9517-9563-06-A

ATOM

™

is the world’s rst miniature encoder with

ltering optics, providing improvements in dirt

immunity, signal stability and reliability for linear,

partial arc and rotary applications.

ATOM features a number of other advances that help maintain

signal stability, including integral Auto Gain Control and

AutoOffset Control, along with a highly reliable IRED light

source, making the product suitable for use in applications

demanding quality and dependability.

The miniature readhead is available in 2 formats: hi-ex cable

output or exible-printed circuit (FPC) output. The FPC version

helps reduce overall package size, with a reduced Z-height

and easy cable routing.

ATOM is available with a range of high-accuracy optical linear,

partial arc and rotary scales, including conventional glass

spars, ‘unbreakable’ stainless steel tape scales and glass discs.

Installation has been simplied by an intuitive set-up LED on

the readhead that indicates signal level. Optical reference mark

phasing and incremental signal optimisation can be achieved with

the simple press of a button.

ATOM is suitable for use in a variety of applications that require

compact size, including laser scanners, CMM arms, semiconductor

manufacturing, compact linear motors / motion stages, small DDR

torque motors, galvanometers and microscope stages.

ATOM – miniaturisation without compromise.

ATOM

™

miniature encoder system

• Miniature package: 8.35mm × 12.7mm × 20.5mm

(7.3mm×12.7mm × 20.5mm for FPC version)

• Highest signal stability and dirt immunity in itsclass

due to ltering optics

• Long-term stability provided by integral AutoGain Control

(AGC) and Auto Offset Control (AOC)

• Low sub-divisional error (SDE) and jitter

• Easy installation and diagnostics using the set-up LED

on the readhead

• Fast, simple calibration at the push of a button

• Auto-phase optical reference mark

• Available in 20µm and 40µm scale pitchversions

• Analogue output direct from the readhead

• Multiple interpolation options, withresolutionsto 1nm

• Range of high accuracy rotary, partial arc

and linear scales

2 ATOM miniature encoder system

• Need higher speed?

ATOM is the fastest encoder in its class, with maximum speeds up to 20m / s and arange of high-speed

interpolation options fordigitalversions.

• Need higher accuracy?

ATOM offers linear tape scales with specied overall accuracy to ±5µm / m at 20°C, without theneed for 2-point

compensation that competitor encoders require.

• Need improved positional stability and repeatability?

ATOM has low noise (jitter), allowing users to increase servo-loop gain without instability, whilst reaping other

dynamic performance benets such asfaster settling times and higher acceleration.

• Need smoother velocity control?

Reduce velocity ripple, improve scanning performance, reduce blur on vision systems and image capturing – all

thanks to ATOM’s superior optical scheme and integral AOC.

System features

High performance

Lissajous stability

ATOM features a miniaturized version of Renishaw’s unique ltering optics that are usedin the TONiC

™

encoderrange.

This optical scheme is tuned to a specic spatial frequency, so it rejects other harmonics, including those caused

by dirt or other contaminants. The result is a Lissajous with high purity, that retains its delity even when thescale

isexposed to contamination: ideal for applications where reliability is critical.

3 ATOM miniature encoder system

• 20µm and 40µm readheads with high-ex cable:

For general purpose applications. Superior quality cable tested to 20million ex cycles.

• 20µm and 40µm readheads with FPC cable:

Side exit FPC cable allows the smallest overall package size.

• Stainless steel tape scale (RKLF):

Linear scale that can be wrapped around drums, arcsorshafts with radii down to26mm.

• Stainless steel tape scale (RTLF):

High-accuracy linear scale with graduations directly marked onto the steel tape surface. Available on reels for cut-to-suitexibility.

• Glass linear spars (RCLC):

Conventional glass spars, available in lengths up to 130mm.

• Glass discs (RCDM):

High-accuracy rotary scales with outer diameters down to17mm.

Product range

Stainless steel tape scale (RKLF)

Glass discs (RCDM)Stainless steel tape scale (RTLF)

20µm and 40µm readheads with FPC cable