ATOM DX™ encoder series
The ATOM DX encoder series is Renishaw's smallest incremental optical encoder with digital output direct from the readhead, providing positional feedback, onboard interpolation, and filtering optics all in a miniature package.
ATOM DX builds on the market proven optical system of the ATOM™ encoder platform and integrates Renishaw's high-performance interpolation technology, reducing system size and removing the need for additional adaptors and interfaces. ATOM DX is suitable for the most space constrained applications where performance cannot be compromised.
Constructed with Renishaw's integrated set-up LED, for an intuitive and simple installation process based on the well established auto-calibration routine, ATOM DX is ready to install straight from the box. ATOM DX is compatible with the optional Advanced Diagnostic Tool ADTi-100 and ADT View software: they provide in-depth advanced diagnostic information to aid optimisation of encoder installation and in-field fault finding to satisfy the most demanding motion control applications.
ATOM DX readheads can be used with a wide range of linear, partial arc and rotary scales to meet most application requirements, and comes in two formats: cabled and top exit variants with either 20 µm or 40 µm scale options.
Performance in a miniature head
ATOM DX fits into the smallest applications with heights as low as 7.85 mm. The top exit variant offers all the benefits and features of the cabled ATOM DX encoder, but in an even smaller package. The top exit variant is a component encoder with the cable assembly integrated separately to the readhead, making the ATOM DX top exit suitable for the smallest spaces.
Performance in speed
ATOM DX encoders offer maximum speeds up to 20 m/s and a range of high-speed interpolation options.
Performance in velocity control
ATOM DX incorporates Renishaw's latest interpolation technology, with updated signal processing algorithms to reduce Sub-Divisional Error (SDE). This helps to reduce velocity ripple and improve closed loop feedback in motion control systems.
Find your ATOM DX scale option
Linear
| Scale type | Scale name | Accuracy | Scale pitch | Coefficient of thermal expansion at 20 °C | Scale max length |
Glass spar
| ±3 µm | 20 µm/40 µm | ~8 µm/m/°C | Up to 130 mm | |
Stainless steel tape
| 20 µm: ±5 µm/m 40 µm (high accuracy): ±5 µm/m | 20 µm/40 µm | ~10.1 ±0.2 µm/m/°C | Up to 10 m (> 10 m on request) | |
Narrow stainless steel tape  | RKLF-S | 20 µm: ±5 µm/m 40 µm (high accuracy): ±5 µm/m 40 µm: ±15 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 type | Scale name | Accuracy | Scale pitch | Coefficient of thermal expansion at 20 °C | Scale max length |
Narrow stainless steel partial arc tape  | RKLF-S | ±15 µm/m | 40 µm | 10.1 ±0.2 μm/m/°C | Up to 10 m (> 10 m on request) |
Rotary
Scale type | Scale name | Scale pitch | Coefficient of thermal expansion at 20 °C | Disc outer diameter |
Glass disc
| RCDM | 20 µm/40 µm | ~8 µm/m/°C | 17 mm to 108 mm |
CENTRUM™ stainless steel disc
| CSF40 | 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 ADTi-100
The ATOM DX encoder system is compatible with the Advanced Diagnostic Tool ADTi-100 and ADT View software. They provide comprehensive real-time encoder data feedback to aid more challenging installations and diagnostics. The intuitive software interface can be used for:
- Remote calibration
- Signal optimisation over the entire axis length
- Readhead pitch indication
- Limit and reference mark indication
- Digital readout of encoder position (relative to the scale)
- Monitoring the velocity against time graph
- Exporting and saving data