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TONiC™ encoder series

What is TONiC?

TONiC is Renishaw's super-compact, non-contact incremental encoder system that offers speeds up to 10 m/s and, when combined with the Ti interface, resolutions down to 1 nm for both linear and rotary applications. TONiC systems are quick and simple to install with wide set-up tolerances and calibration at the push of a button. TONiC's dynamic signal processing gives improved signal stability with ultra-low Sub-Divisional Error of typically <±30 nm to help realise superior motion control performance.

TONiC UHV brings incremental encoder technology to ultra-high vacuum applications up to 10-10 Torr where high performance in a compact form factor is required.

Website cameo: TONiC 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.

Gold plated tape

Gold scale FAQ

Scale name

Accuracy

Scale pitch

Thermal expansion

coefficient

Max length of scale

Encoder systems

RGSZ/RGSN

±15 µm/m

 

20 µm

Thermally mastered to substrate by use of end clamps

For length >50 m, please contact Renishaw

 

TONiC with RGSZ, TONiC UHV with RGSZ

Stainless steel tape with track option

Fastrack RTLR rectangular

Scale name

Accuracy

Scale pitch

Thermal expansion

coefficient

Max length of scale

Encoder systems

RTLC with optional FASTRACK

±5 µm/m

20 µm

~10.6 µm/m/°C

10 m

TONiC with RTLC, TONiC UHV with RTLC

ZeroMet™ spar 

RELM linear scale with IN-TRAC reference mark

Scale name

Accuracy

Scale pitch

Thermal expansion

coefficient at 20°C

Max length of scale

Encoder systems

RELM/RELE

±1 µm for up to 1 m, then ±1 µm/m

20 µm

0.75 ±0.35 µm/m/°C

1.5 m

TONiC with RELM, TONiC UHV with RELM

Stainless steel spar

RELM Invar scale

Scale name

Accuracy

Scale pitch

Thermal expansion

coefficient

Max length of scale

Encoder systems

RSLM/RSLE/RSLC

±1.5 µm up to 1 m, ±2.25 µm up to 2 m, ±3 µm up to 3 m, ±4 µm up to 5 m

20 µm

~10.8 µm/m/°C

5 m

TONiC with RSLM, TONiC UHV with RSLM 

Stainless steel ring

RESR 3 rings

Scale name

Graduation accuracy (depending on ring diameter)

Scale pitch

Thermal expansion

coefficient

Ring diameter

Encoder systems

 

RESM/REST/RESD

±3.97 to ±0.38 arc seconds

20 µm

17 μm/m/°C

 

52 to 550 mm

 

TONiC with RESM, TONiC UHV with RESM

 

Ultra-high accuracy stainless steel ring 

REXM rings

Scale name

Installed accuracy (depending on ring diameter)

Scale pitch

Thermal expansion

coefficient

Ring diameter

Encoder systems

 

REXM/REXT

(≥100 mm diameter) ±1 arc second
(75 mm diameter) ±1.5 arc seconds
(≤57 mm diameter) ±2 arc seconds

20 µm

17 μm/m/°C

 52 to 417 mm

TONiC with REXM, TONiC UHV with REXM