Piezo LEGS Caliper 20N
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Piezo LEGS® Caliper 20N • • • • • For stage integration Direct drive - backlash free Nanometer resolution Simple drive electronics Quick response and high speed The Piezo LEGS Caliper 20N motor is intended for motorizing linear stages or goniometer stages. It is miniaturized to such a degree it will fit within the stage block. Manufacturers can with the Caliper motor reach new degrees of miniaturization in stage motorization. The very high speed dynamics and nanometer resolution makes it ideal for motorized stages. The LEGS technology is characterized by its outstanding precision. Fast speed and quick response time, as well as long service life are other benefits. In combination with the nanometer resolution the technology is quite unique. When the motor is in hold position it does not consume any power. The drive technology is direct, meaning no gears or lead screws are needed to create linear motion. This means the motor has no mechanical play or backlash. Operating modes The motor can move in full steps (wfm-steps), or partial steps (microsteps) giving positioning resolution in the nanometer range. Speed is adjustable from single microsteps per second up to max specified. Controlling the motor PiezoMotor offers a range of drivers and controllers. The most basic one is a handheld push button driver. Another option is an analogue driver that regulates the motor speed by means of an ±7 V analogue interface. One of the more advanced alternatives is the PMD101 Microstep Driver/Controller. This product enables the user to vary the waveform as well as speed. The PMD101 is equipped with encoder signal inputs for close loop control. The microstepping feature divides full step cycle into maximum 2048 increments which results in microsteps as small as two nanometers. PMD101 Design your own driver Some customers prefer to design their own driver for ease of integration or for even higher waveform resolution (subnanometer range). In this case PiezoMotor can provide information to assist in the design. Ordering information Motor LC2010 Motor for goniometer stage LC2020 Motor for linear stage Drivers and Controllers PMCM21-01 Handheld Push Button Driver PMCM31-01 Analogue Driver PMD101 Microstepping Driver Accessories LEGS-LT CONNECT Twin Connect Board

Piezo LEGS® Caliper 20N Operating Principle 1 When all four legs are electrically activated they are elongated and bending. As we shall see below, alternate legs move as pairs. Arrows show the direction of motion of the tip of each leg. The Piezo LEGS walking principle is of the non-resonant type, i.e. the position of the drive legs is known at any given moment. This assures very good control of the motion over the whole speed range. The performance of a Piezo LEGS motor is different from that of a DC or stepper motor in several aspects. A Piezo LEGS motor is friction based, meaning the...

Piezo LEGS® Caliper 20N 15,7 20,7 Main Dimensions LC20 20,4 8 60 44 Installation 15,7 ±0,03 Note: All specifications are subject to change without notice. Detailed drawings can be found in the document Installation Guidelines for the Piezo LEGS Caliper. The Piezo LEGS 44 Caliper is designed for stage integration. It 40 ±0,1 is miniaturized to a degree where it will (2x) -0,002 3 g7 -0,012 0,03 A 8 fit inside a linear stage or a goniometer stage (figure 2). 20,7 3 The motor is easily mounted in the stage blocks using eight screws. No further adjustments have to be made. Please look at the...

Technical Specification Type LC2010 (for gonio stage) Stroke ±10º Minimum Radius LC2020 86 mm Speed Range Step Angle/Length Resolution 29 mm a 0-7 º/s - 0.01 -45 µrad < 10 nrad Recommended Operating Range a see installation guidelines 0-10 mm/s a b b Note (for linear stage) recommended, no load 0.001 -4 µm no load, microsteps up to full wfm-steps b < 1 nm a for best microstepping performance and life time 0-10 N 0-10 N Stall Force 20 N 20 N Holding Force 22 N 22 N Maximum Voltage 48 V 48 V 2 x soldered cable with JST 05SR-3S 2 x soldered cable with JST 05SR-3S Connector Mechanical Size...