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Virtual Panel Event about Industrial Connectivity

Virtual event


This 60-minute virtual panel discussion between industry experts will explore the intersection of connectivity (more)

UKIVA Machine Vision Conference



Join us on 15 July 2021 on the MVC Technology Presentation Hub and explore eight online seminar theatres. (more)

PPMA Show 2021

NEC, Birmingham(B40 1NT)

28/09/2021 - 30/09/2021

PPMA Show 2021 will be the UK’s largest ever event dedicated to state-of-the-art processing and (more)

Southern Manufacturing

Farnborough, Hants(GU14 6TQ)

06/10/2021 - 07/10/2021

Southern Manufacturing and Electronics is the most comprehensive annual industrial exhibition in the (more)

Advanced Engineering 2021

NEC Birmingham(B40 1NT)

03/11/2021 - 04/11/2021

Join us in our 12th and most important edition to date, as we invite engineers and management from all (more)

Smaller Piezo LEGS motor with integrated encoder

Smaller Piezo LEGS motor with integrated encoder Expanding on the successful Piezo LEGS rotary motor series LR50/80 is a new reduced dimension LR17 with integrated encoder. This is the first step in the long-term aim to broaden the range of rotary motors as demanded by the market place. The LR17 is PiezoMotor's smallest rotary Piezo motor yet, and the first in a new series of rotary LEGS motors with integrated absolute encoders.

The company comments that the LR17 is the first motor in a series of four different sizes, which offers high resolution together with sensor from a very compact size with simple system integration. This small compact motor with diameter of just 17mm has all the benefits already established with the Piezo LEGS technology. Despite its small dimensions the motor develops a stall torque of 30mNm without any backlash. The company says that conventional motors of a similar size can only reach these torque levels with the addition of a gearhead, which adds to the size and introduces backlash into the system.

The motor construction is based around the established friction drive method which results in good self-locking characteristics meaning that the motor can hold position without consuming any power. The integrated 15-bit magnetic absolute encoder gives a closed loop resolution of 0.2 milli-radians (0.01º), and as always with the Piezo LEGS technology, you get sub-micro-radian resolution in open loop.

The Piezo LEGS technology makes it possible to continue improving existing customer designs when conventional motor technology has reached its limit.
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