Renishaw: Incremental linear encoder TONiC™ RGSZ20

Renishaw’s patented RGSZ20 20 µm gold scale features customer selectable optical IN-TRAC™ reference marks. Uniquely these are directly embedded into the incremental channel to enable electronic auto-phasing simply by pressing a button.

RGSZ20 scale is suitable for use with the new Tonic encoder, featuring dynamic signal processing, ultra-low cyclic error (±30 nm) and resolutions to 1 nm.

The scale is supplied with a specially formulated adhesive backing tape. Installation is quick, easy and suits both high volume production and one-off field service installations.

To simplify customer inventory and maximize production flexibility, the scale can be supplied on a reel for ‘cut-to-suit’ convenience at the point of installation.

RGSZ20 is suitable for mounting to most common engineering materials including metals, granites, ceramics and composites, whilst the RGSZ20-P polyester coated version has an increased resilience to solvent and lubricant attack.

The scale ends are rigidly fixed to the axis substrate by means of epoxy fastened end clamps, eliminating the need to drill holes. Because the scale has a very small cross section, it is ‘mastered’ to the substrate and matches its thermal expansion. Differential movement between the scale and the substrate is close to zero, even throughout significant temperature swings.

Specifications:

IN-TRAC™ optical reference marks embedded directly into the incremental channel

Compatible with the new Tonic encoder system

‘Cut-to-length’ flexibility

Length: 1 Meter

Protective lacquer or tough polyester coating option for applications using harsh solvents

Quick and easy one-person installation

Affixes to most common engineering materials

Self-adhesive

Dual limits provide end of travel indication

Linearity of ±3 µm/m; ±0.75 µm/60 mm

RGSN20 version is supplied without IN-TRAC reference marks