RESOLUTE™ encoder series
What is RESOLUTE?
RESOLUTE is a true-absolute, fine pitch 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, RESOLUTE is available in 3 more application-specific 'versions':
- 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 pitch optical encoder system that is able to operate in environments with extreme high and low temperatures.
RESOLUTE FS (Functional Safety) is an open optical, true absolute encoder that is certified to SIL2 and PLd for functional safety applications.
RESOLUTE is the winner of a Queen's Award for Enterprise 2015 in the Innovation category
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.
Stainless steel tape with track option
Scale name | Accuracy | Scale pitch | Thermal expansion coefficient at 20 °C | Scale max length | Readhead compatibility |
RTLA with optional FASTRACK™  | ±5 µm/m | 30 µm | 10.1 ±0.2 µm/m/°C | 21 m |
ZeroMet™ spar
Scale name | Accuracy | Scale pitch | Thermal expansion coefficient at 20 °C | Scale max length | Readhead compatibility
|
RELA  | ±1 µm for up to 1 m, then ±1 µm/m
| 30 µm | 0.75 ±0.35 µm/m/°C | 1.5 m
|
Stainless steel spar
Scale name | Accuracy | Scale pitch | Thermal expansion coefficient at 20 °C | Scale max length | Readhead compatibility |
RSLA | ±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 | 5 m |
Stainless steel ring
Scale name | Graduation accuracy (depending on ring diameter) | Scale pitch | Thermal expansion coefficient | Ring diameter | Readhead compatibility |
RESA  | ±3.97 to ±0.38 arc seconds | 30 µm | 16 µm/m/°C
| 52 to 550 mm |
Ultra-high accuracy stainless steel ring
Scale name | Installed accuracy (depending on ring diameter) | Scale pitch | Thermal expansion coefficient | Ring diameter | Readhead compatibility |
REXA  | (≥100 mm diameter) ±1 arc second ±1.5 arc seconds ±2 arc seconds | 30 µm | 16 µm/m/°C | 52 to 417 mm |