Motion Applications

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Medical Devices

Spindle Control

Spindle Control means controlling high speed motors (usually Brushless DC motors) in applications such as machine tool cutting, drilling, centrifuges, cryo-pumps, bar code readers, rotating marking and scanning systems, spin coating, and more. What connects all these applications is the need to drive the motor at high rotation speeds sometimes exceeding 50,000 RPM, and with high efficiency and minimal motor heating.

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Robotic Wheel Drive

Robotic Wheel Drive means controlling wheels used to propel robotic devices such as warehouse robotics, rovers, agricultural robots, robotic lawn mowers and a wide array of mobile devices. Some such devices have two primary drive wheels but three, four and even higher numbers of drive wheels are possible. The unique motion control application that ties these machines together is the challenge of slip control and navigation over uneven and physically diverse terrain.

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Robotic Gripper Control

Robotic Gripper Control specifically means control methods associated with getting a robotic 'hand' to grip an object safely - applying neither too much or too little force. Too much and the object may be crushed or damaged, and too little and the object may be dropped during robot arm motion. Looking at this problem more generally though this combined position and torque control problem is relevant to a broad category of applications including screw cap applicators, cobots, press fit equipment, surgical robotics, and more.

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Pan & Tilt Pointing

Pan & tilt pointing means motion control of a mechanical system that can ‘pan’ (rotate around a vertical axis) and tilt (rotate around a horizontal axis). There are a large variety of machines that use a pan & tilt pointing mechanism including security cameras, laser pointing systems, fire control systems, film production equipment, radar control systems, and more.

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CAM Profiling

CAM profiling is a general purpose motion technique utilizing a pre-stored look-up table of desired positions driven by an incoming command encoder datastream. CAMs are especially useful for encoding profiles which don’t follow a standard envelop such as a trapezoidal or parabolic profile. While originally used just to replicate mechanical rotating CAMs, electronic CAM profiling has grown to provide an array of profile generation and position compensation functions.

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