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McLennan Servo Supplies offers an incremental micro encoder for pick-and-place automation, miniature servomotors, scanners, medical devices and integration into linear and rotary positioning stages.

The new compact and durable Ulthemius micro encoder from Numerik Jena is capable of 100,000 counts per revolution with a bandwidth of up to 16MHz.

The incremental micro encoder measures 16mm in diameter, has a nominal length of less than 20mm and weighs less than 12g.

The encoder is also available in an optional analogue version with a sine/cosine output to 1,250 periods per revolution and, thanks to its highly integrated design, both output types include UVW commutation signals for four, six or eight poles.

As such, the Ulthemius provides a neat solution for cost-optimised OEM applications for servo motion control, according to the company.

The encoder uses specially developed chrome-on-plastic (COP) code disks for extremely low mass and inertia in combination with a sophisticated optical pick-up and internal signal conditioning from its integrated interpolation electronics.

The self-monitoring encoder takes care of phase, amplitude and offset errors and will output error signals before critical system status occurs.

The Ulthemius features an aluminium housing with IP40 or optionally IP50 environmental rating and a shock specification to 100G for 11ms, with vibration to 10G between 10Hz and 2,000Hz.

The design includes precision bearings with a speed rating to 60,000rev/min.

A choice of a 16-pin header-style connector or a flat cable connection is available.

The digital version of the Ulthemius is available in several standard line count options from 4,000 to 80,000 CPR (after quadrature) with A, B and Z channels via RS422A-compatible and short-circuit proof differential line driver outputs.

The analogue version offers a 1,000 LPR output at 1Vpp.

Both types are available with custom CPR/LPR rates upon request.

Mclennan Servo Supplies

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