The AMG series of Gimbals are ideal for directing optics, lasers, antennas and sensors at high speed to very precise pointing angles. Typical applications include missile seeker test and calibration, LIDAR, electro-optical sensor and FLIR testing, airborne target tracking, optical testing of space-based sensors in a vacuum and angular testing of inertial sensors such as gyros, MEMS, accelerometers and inertial reference units.
The AMG gimbal design incorporates recent Aerotech rotary stage design improvements to provide high performance at an affordable price. The finest quality motors, bearings and encoders are integrated into precision-machined housings to ensure peak performance. The AMG position and rate gimbals provide precise angular motion with the high performance customers expect from Aerotech products.
Direct-drive brushless torque motors, with rare-earth magnets and high-accuracy angular transducers, are coupled directly to precision shafts for accurate and smooth 360° continuous motion. The absence of gear trains and other drive mechanisms eliminates position error contributions due to mechanical hysteresis and backlash. Directly-coupled high-resolution position transducers ensure highly accurate and repeatable positioning.
A wide-range of performance feedback grades is available. Typical line gimbal resolution ranges from 1.0 to 0.13µrad with Aerotech controls. The built-in azimuth slip ring provides for continuous rotation with no cable wrap up.
To maximise positioning and velocity performance, AMG gimbal mounts utilise Aerotech’s high torque S-series brushless, slotless servomotors. These motors have all of the advantages of a brushless direct-drive motor — no brushes to wear, no gear trains to maintain and high acceleration and high speeds. Since it is a slotless, ironless design, there is zero cogging, meaning that there is absolutely no torque ripple. This results in smoother motion throughout travel and more precise positioning. These motors are available in different winding configurations to work with high or low voltage power supplies.
Large diameter, matched-set ABEC-7 bearings maximise performance with respect to wobble, moment stiffness and rotating friction. The large diameter bearing permits large payload capacity without compromising performance. Casting gimbal yokes provide high stiffness to maintain gimbal accuracy under dynamic conditions. Travel limits, hardstops and brakes are available as standard options.
A variety of mirror cell diameters are available for standard optic applications. We also provide for custom payload attachment solutions to accommodate various device interfaces. Each gimbal mirror cell can be modified or replaced with different shaped cells to accommodate sensors or other odd shaped payloads. We understand customer payloads vary and our engineers have a variety of solutions to implement offset CG payloads.
Design Features of the AMG Gimbals and Optic Mounts Include:
Continuous 360 degree rotation of azimuth and elevation including built-in slip ring
High accuracy angular position and rate capability
Direct-drive brushless servomotors result in zero backlash
Cog-free design for outstanding velocity stability
Accommodate loads up to 600 mm diameter
Low maintenance and high reliability provide the lowest cost of ownership
Lastek | Laser & Optical Based Photonic Technologies
The Lastek Group of Companies was formed in 1988 and operates today from a large, fully-restored factory located in the University of Adelaide's Commerce and Research Precinct at Thebarton, Adelaide, South Australia. The Group offers a unique set of laser and optical technological resources to the Australian and New Zealand photonics industry. With a staff of over fifteen employees, Lastek brings together a wealth of experience in lasers, optics and complementary technologies.
Lastek is the leading distributor in Australia and New Zealand for many of the world's most advanced laser and photonics companies. Our sales and service personnel, including 3 PhDs, are the most experienced in the industry. We support customers in leading edge applications in diverse fields. These range from fundamental research in physics, chemistry, engineering and biology, to industrial applications of photonics technology, to advanced microscopy and imaging systems, and spectroscopy.
The Groups activities are diverse: in addition to the supply and support of advanced laser and optical equipment; we design and manufacture optical instruments and we undertake custom design and optical project management for a wide range of customers and applications.
Well-equipped workshops and laboratories allow Lastek to undertake design and development tasks, system integration and custom manufacturing project. With in-house expertise in areas as diverse as software development, optical system design, high voltage electronics, opto-mechanical design and fabrication, Lastek have the experience and capabilities to develop advanced optical products, from prototyping to market release.