ATOM™ encoder series
What is the ATOM encoder?
The ATOM series is Renishaw's miniature non-contact optical incremental encoder system suitable for linear and rotary applications. Its innovative design combines miniaturisation with leading-edge signal stability, dirt immunity and reliability. This represents a significant advance in the performance and reliability of miniature encoders. This encoder is also the fastest in its class, with maximum speeds up to 20 m/s.
ATOM systems are simple to install with integrated LED for signal integrity indication. They are compatible with Renishaw's ADTpro-100 diagnostic tool.
A range of high-speed interpolator solutions is available, including the Ri interface, the high-performance Ti interface and the compact PCB-style ACi interface, offering digital output with resolutions down to 1 nm.
Miniature analogue encoder
ATOM is a miniature fully featured analogue encoder for space constrained applications. External interpolator interfaces are available with resolutions down to 1 nm.
Flexible printed circuit (FPC) readhead variant
The ATOM readhead is also available as a flexible printed circuit (FPC) variant with a reduced Z-height which helps to reduce the overall package size. The FPC output also gives customers the freedom to design their own cabling for easy routing.
Reliable position measurement
Due to Renishaw's unique filtering optics design, ATOM encoders offer reliable position measurement through excellent signal stability and dirt immunity.
Find your ATOM scale option
Linear
| Scale type | Scale name | Accuracy | Scale pitch | Thermal expansion coefficient at 20 °C | Scale max length |
Glass spar  | RCLC | ±3 µm/m | 20 µm/40 µm | ~8 m/m/°C | Up to 130 mm |
 Stainless steel tape | 40 µm (high accuracy): ±5 µm/m | 20 µm/40 µm | ~10.6 m/m/°C | Up to 10 m (> 10 m on request) | |
Narrow stainless steel tape  | RKLF-S | 40 µm (high accuracy): ±5 µm/m 40 µm: ±15 µm/m 20 µm: ±5 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 | Graduation accuracy | Scale pitch | Coefficient of thermal expansion at 20 °C | Disc outer diameter |
Glass disc  | ±0.5 µm (disc ø up to 100 mm) ±0.7 µm (disc ø over 100 mm) | 20 µm/40 µm | ~8 µm/m/°C | 17 to 108 m | |
CENTRUM stainless steel disc
| CSF40 | ±0.5 µm | 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 ADTpro-100
The ADTpro-100 is a handheld, standalone encoder diagnostic tool featuring an integral colour touch screen. It assists in system set-up and planned maintenance to help minimise unscheduled machine downtime. The ADTpro-100:
- Requires no computer or additional set-up equipment to display comprehensive real-time encoder information.
- Is easy and intuitive to use with plug-and-play functionality to aid system set-up and calibration.
- Interfaces with the optional ADT View computer software. ADT View can be used to update the ADTpro-100 firmware.