Incremental Optical Encoders support Dual Signal interface.

Press Release Summary:

TONiC(TM) incremental optical encoders are available with DSi (Dual Signal interface), which promotes rotary axis accuracy and gives users selectable reference mark position via propoZ(TM) technology. Using 2 readheads on angle encoder improves accuracy and repeatability of motion system by eliminating eccentricity, bearing wander, and all odd error harmonics. When used with REXM ring encoders, total installed accuracy of better than ±1 arc sec is achieved.

Original Press Release:

Dual Signal Interface Now Available with Leading Range of Incremental Encoders

Renishaw's DSi (Dual Signal interface) is now available with its TONiC(TM) family of incremental optical encoders, bringing even higher accuracy to rotary axes and giving customers a selectable reference mark position via the company's propoZ(TM) technology.

Using two readheads on an angle encoder improves the accuracy and repeatability of the motion system by eliminating eccentricity, bearing wander and all 'odd' error harmonics. When used with Renishaw's REXM ring encoders, a total installed accuracy of better than ±1 arc second is achieved. The combined TONiC DSi system makes adding a second readhead easy by taking care of the combination of incremental channels and reference mark processing.

Renishaw's patented propoZ technology allows a customer to easily select reference output position with the press of a button. Furthermore, the propoZ output position is angularly repeatable, regardless of bearing wander or power cycling.

The TONiC DSi system can be used with Renishaw's RESM encoder rings in a range of standard diameters from 52 mm to 550 mm (with even larger diameters and custom sizes available on request), or with ultra-high accuracy REXM rings for the most demanding precision rotary motion applications.

As with all Renishaw encoders, the TONiC DSi system is backed by a truly responsive global sales and support network. Furthermore the TONiC and DSi products satisfy the highest environmental standards, with both WEEE and RoHS compliance.

Further information
For more information about Renishaw's full range of position encoders, including magnetic encoder modules, magnetic encoder chips, magnetic rotary encoders, magnetic linear encoders and magnetic ring encoders, plus optical linear encoders and optical angle encoders, please visit

The parent company of the Renishaw Group is Renishaw plc, registered in England no. 1106260. Registered Office: New Mills, Wotton-under-Edge, Gloucestershire, UK.
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