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
![Miniature pictogram](/media/img/gen/6f5170944988477eb764985f38b6c54b.png)
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
![Flexible printed circuit (FPC) pictogram](/media/img/gen/607b5e86f666416a88670ac15f072b68.jpg)
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
![Reliability pictogram](/media/img/gen/fe203a590b5f4c2899bdb8a386e04d1d.png)
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
![ADTpro-100 Advanced Diagnostic Tool on a white plinth](/media/img/gen/125751885a1b4db28b6578ae303203b2.jpg)
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.