REVO-2 is a 5-axis head designed specifically for the ATOM encoder.
The REVO-2 multi-sensor 5-axis measuring head.
Renishaw recently launched the REVO-2, a new version of its multi-sensor 5-axis measuring head for use on coordinate measuring machines (CMMs).
REVO-2 and its new CMM controller, the UCC S5, offer enhanced power and communications capabilities to carry the latest REVO sensors, such as the RVP vision measurement probe. The REVO multi-sensor system is notable for enabling operators to perform 5-axis measurements on a 3-axis CMM, measuring thousands of points per second and operating at speeds of up to 500 mm/s.
The REVO-2 incorporates Renishaw’s latest ATOM miniature incremental rotary encoder with RCDM rotary (angle) scales on both of its axes (yaw & pitch) and is the first product to have the ATOM encoder designed-in at the concept stage.
Each 20 µm-pitch RCDM glass disc is face-read by a dual-readhead setup which helps to optimize REVO-2 performance by eliminating rotational eccentricity error.
The ATOM Encoder
The ATOM Encoder. (Image courtesy of Renishaw.)
The ATOM system was also chosen for several important design features, including:
- Relative mechanical simplicity and optional optical/electrical disc alignment methods
- Ease of assembly via set-up LEDs allowing both incremental signal calibration and auto-phasing of reference marks without oscilloscopes or external equipment
- Availability of chrome-on-glass rotary scale, with a graduation accuracy which enables REVO-2 to achieve a resolution of 0.002 arc seconds
The ATOM system was launched in 2014 as the world’s first miniature encoder with advanced filtering optics. ATOM’s unrivalled metrology provides class-leading accuracy with low Sub-Divisional Error (SDE), low jitter, high signal stability and long-term reliability.
ATOM offers analogue speeds to 20 m/s (29,000 RPM on a 17 mm disc) and digital resolutions to 1 nm when used with Renishaw’s interpolation electronics. A range of linear and rotary scales is available in stainless steel and glass.
Applications for ATOM’s readhead include:
- Laser scanning
- Precision micro-stages
- Semiconductor
- Medical applications
- DDR motors
- Microscopy and scientific research
Additionally, the FPC variant of ATOM measures 6.8 mm x 12.7 mm x 20.5 mm and is suited to a variety of space-critical motion control, inspection and metrology applications.
ATOM has CE approval and is manufactured using quality controlled processes that are certified to ISO 9001:2008.
For more information, visit the Renishaw website.
