SCR Stages Get Encoder Upgrade

All Nippon Pulse SCR nanopositioning stages are available with a upgraded encoder, the Renishaw Tonic Encoder. Any stage built after Sept. 1, 2010 – beginning with unit SN#080210-001 – will come standard with the upgraded Tonic Encoder.

The previous standard encoder was the Renishaw RGH24, which used optional and separate read end-of-travel limit switches. The move to the Tonic Encoder includes limit switches as a part of the new read head. This move optimizes performance and eliminates extra wiring needed with the optional limit switches. Because travel limits are included standard, there is no longer a need to pick them up as an option.

Other benefits of using this new encoder with the SCR stages include improving interpolation feedback by four times – achieving 5nm resolution without the use of a large RGB interpolator – and increased resolution and speed options.