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Fiber and Photonics Alignment Algorithms

Precision motion mechanics, such as Aerotech’s FiberMaxHP, are a critical component for high-quality results with efficient throughput in modern fiber alignment and silicon photonics alignment processes. However, the hardware for your precision motion equipment is not the only part of the system to consider for alignment applications. The control software that optimizes the motion is just…

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Using the Automation1 Transformation Function for Five Axis Systems

The transformation functions in Automation1 implement rotation, mirror, and translation matrix operations. The functions can be used to transform coordinates on mechanical actuators that include rotary motion. Multiple rotation matrices can be configured using the TransformationConfigure() function for systems that have more than one rotary axis. A five‐axis system consisting of two rotary axes and…

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ThermoComp® Integrated Temperature Compensation

Thermal error management has been a major concern of precision machine designers since the 19th century. To this day, temperature changes and thermal effects are still some of the largest error sources in precision machines. One major reason for this is the difficulty and often extreme expense associated with designing a thermally insensitive machine. Most…

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EasyTune Advanced Motion Controller Autotuning Tool

EasyTune® is the most advanced autotuning tool available in a commercial motion controller. Entirely data-driven, the algorithm mimics the process followed by an experienced controls engineer. Many existing tuning techniques rely on basic model-fitting or “rules-of-thumb” that ignore machine resonances or nonlinear behavior, but EasyTune directly measures and compensates for those effects. It assumes no…

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Position Synchronized Output (PSO) – Coordinate Part Position with Process Control

Design Features Trigger your process tool based on distance traveled, avoiding trigger errors based on acceleration, deceleration, or any other velocity instability Integrates well with fast-pulsed lasers, enabling next-generation display and medical device manufacturing Includes versatile, process-enhancing features Aerotech’s Position Synchronized Output (PSO) feature coordinates your motion with output that triggers lasers or data acquisition…

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Machine Positioning Uncertainty with Laser Interferometer Feedback

The purpose of this discussion is to explain the major contributors to machine positioning uncertainty in systems with laser interferometer feedback near the work point. We will use an example to quantify these uncertainties in a real implementation of a laser-feedback-driven machine. Laser interferometers are used as a measurement reference for machine correction and accuracy…

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High-Bandwidth Force Control

Traditionally, linear stages are used with encoders to position to precise points in a motion profile. These encoders are used for both positioning and, in the case of brushless servomotors, for motor commutation as well. However, in certain applications like material press-bonding, position is not as important as force. When binding two materials together, if…

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Aerotech’s EasyTune Advanced Autotuning Tool

When a user finds that the accuracy of a motion control application is low, such as unacceptable following error due to friction, low frequency disturbance, etc., they will normally first increase the servo loop gains to reduce the following error. Unfortunately, this “quick fix” can result in excess gains that make the system unstable. In…

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