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RESOLUTE™ encoder series

The Queen's Award for Enterprise: Innovation 2015

The RESOLUTE series is a true-absolute fine-pitched optical encoder system that has excellent dirt immunity, and an impressive specification that breaks new ground in position feedback. It is the world's first absolute encoder capable of 1 nm resolution up to 100 m/s for linear systems, and 32-bit resolution up to 36 000 rev/min for rotary systems. Ultra low Sub-Divisional Error and jitter result in a linear encoder system that outperforms any other encoder in its class.

Additionally, it is available in 3 more application-specific variants:

  • RESOLUTE UHV brings absolute encoder technology to ultra-high vacuum applications up to 10-10 Torr, allowing customers to achieve higher throughput, reduce risks of damage and increase dependability.
  • RESOLUTE ETR (Extended Temperature Range) is a true-absolute fine-pitched optical encoder system that is able to operate in environments with extreme high and low temperatures.
  • RESOLUTE FS (Functional Safety) is certified to SIL2 and PLd for Functional Safety applications.

RESOLUTE is compatible with the optional Advanced Diagnostic Tool ADTa-100 and ADT View software: these provide real-time encoder data feedback to aid encoder installation and in-field fault finding.

The RESOLUTE series is the winner of a Queen's Award for Enterprise 2015 in the Innovation category

Website cameo: RESOLUTE 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.
  • Partial arc scales are used for measuring a partial arc of rotation by wrapping them around drums, shafts or arcs.

Stainless steel tape with track option

Scale name

Accuracy

Scale pitch

Coefficient of thermal expansion at 20 °C

Supplied length

Readhead compatibility

RTLA30 with optional FASTRACK™

RTLA FASTRACK scale

±5 µm/m

30 µm

10.1 ±0.2 µm/m/°C

Up to 21 m

RESOLUTE, RESOLUTE UHV, RESOLUTE FS

Narrow stainless steel tape

Scale name

Accuracy

Scale pitch

Coefficient of thermal expansion

Supplied length

Readhead compatibility

RKLA-S

RKLA linear scale

±5 μm/m

30 µm

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

Up to 21 m RESOLUTE

ZeroMet™ spar

Scale name

Accuracy

Scale pitch

Coefficient of thermal expansion at 20 °C

Supplied length

Readhead compatibility

RELA30

RELA scale

±1 µm for up to 1 m, then ±1 µm/m

30 µm

0.75 ±0.35 µm/m/°C

Up to 1.5 m

RESOLUTE, RESOLUTE UHV, RESOLUTE FS

Stainless steel spar

Scale name

Accuracy

Scale pitch

Coefficient of thermal expansion at 20 °C

Supplied length

Readhead compatibility

RSLA30

RELA scale

±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

30 µm

10.1 ±0.2 µm/m/°C

Up to 5 m

RESOLUTE, RESOLUTE UHV, RESOLUTE FS

Narrow stainless steel partial arc tape

Scale name

Accuracy

Scale pitch

Coefficient of thermal expansion

Supplied length

Readhead compatibility

RKLA-S

RKLA partial arc scale

±5 μm/m

30 µm


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

Up to 21 m RESOLUTE

Stainless steel ring

Scale name

Graduation accuracy (depending on ring diameter)

Scale pitch

Coefficient of thermal expansion at 20 °C

Ring diameter

Readhead

compatibility

RESA30

RESA scale (scale page)

±3.97 to ±0.38 arc seconds

30 µm

15.5 ±0.5 µm/m/°C

52 to 550 mm

RESOLUTE,

RESOLUTE UHV,

RESOLUTE ETR,

RESOLUTE FS

Ultra-high accuracy stainless steel ring

Scale name

Installed accuracy

(depending on ring diameter)

Scale pitch

Coefficient of thermal expansion at 20 °C

Ring diameter

Readhead compatibility

REXA30

REXA scale (scale page)

(≥100 mm diameter)

±1 arc second
(75 mm diameter)

±1.5 arc seconds
(≤57 mm diameter)

±2 arc seconds

30 µm

15.5 ±0.5 µm/m/°C

52 to 417 mm

RESOLUTE,

RESOLUTE UHV,

RESOLUTE ETR, RESOLUTE FS