Motion Control

Positioning System

Piezoconcept (Lyon, France) offers the Hybrid System, an integrated positioning system for use with any standard inverted optical microscope. It combines a manual micrometer-driven, two-axis, linear motion stage with high-resolution, ultra-low-profile nanopositioners providing up to 300 μm in every direction. A stable blocking force into each axis of the coarse positioning stage provides a secure base for nanopositioning. The system provides sub-nanometer resolution under closed loop control. Typical applications include high-resolution microscopy, particle tracking, and confocal microscopy. Upon request, an additional breadboard can be provided.

Posted in: Products, Manufacturing & Prototyping, Motion Control
Read More >>

A Method for Accurate Load/Position Control of Rigidly Coupled Electromechanical Actuators

NASA has developed a technique designed to prevent cross-coupling in systems where two or more linear electro-mechanical actuators (EMA) are rigidly connected and are in danger of becoming cross-coupled. In such systems where the linked EMAs are commanded to achieve two distinct goals, such as position and load control, control problems often arise — especially at higher load and linear velocity levels. Both position and load control become inaccurate and in certain situations, stability of the overall system may be compromised. The NASA-developed approach mitigates the problem and achieves both accurate position following and desired load levels between the two (or more) actuators.

Posted in: Briefs, Mechanical Components, Mechanics, Positioning Equipment, Electronic control systems, Electronic equipment, Sensors and actuators, Electronic control systems, Electronic equipment, Sensors and actuators
Read More >>

Metal Bellows - Key Enabling Technology for a Wide Range of Engineering Applications

Convert pressure, mechanical, vacuum and temperature changes into linear or rotational motion using metal bellows. It may be the smallest component of an overall machine assembly but it very often plays the most critical role in the functionality of a system. This newest whitepaper from Servometer outlines seven key enabling technologies that benefit from bellows across a wide range of engineering applications – providing a more precise, more reliable or less costly alternative to an existing engineering solution.

Posted in: White Papers, Aeronautics, Defense, Motion Control, Automation
Read More >>

Model-Driven Innovation in Machine Design

This whitepaper discusses a Model-Driven Innovation process, an approach that makes a multidomain, system-level model the core of design activities, allowing engineers to see how individual subsystems work together. With this approach, problems can be fixed early without project delays, and designs can be validated with access to the underlying mathematics, allowing organizations seeking to mitigate system complexities to improve their ability to control costs, produce high-quality designs and move products to market more quickly. Using tools like MapleSim, the multidomain system modeling tool from Maplesoft, enables engineers to develop and test high-fidelity virtual prototypes of their complex dynamic systems.

Posted in: White Papers, Manufacturing & Prototyping, Motion Control, Automation, Robotics
Read More >>

How to Prevent Step Losses with Stepper Motors

While stepper motors are an excellent solution for many applications, a key concern is step losses. However, in most instances step losses can be prevented or corrected. It is important to remember that a stepper motor does not operate like a DC motor. This white paper from MICROMO engineers provides guidance to determine step losses or non-operation across a variety of applications.

Posted in: White Papers, White Papers, Mechanical Components, Mechanics, Medical, Motion Control, Motors & Drives
Read More >>

Simplified Machine Design Approach for Optimal Servomotor Control

An often asked question from industrial machine builders or integrators is how they can effectively design or implement the conversion of a machine with servo technology to meet performance expectations. This is a specialized task filled with layers of complexity that can prove difficult to execute, even when the scope of work is fully understood.

Posted in: Articles, Motion Control, Design processes, Sensors and actuators, Sensors and actuators, Industrial vehicles and equipment
Read More >>

Anti-Creep Mechanism Enables Ultra-Precise Motor Table Positioning

Motion control is essential for the digitization and automation of high-tech equipment, but bearings remain basic to frictionless movement. Bearing Engineers, a bearing distributor, recently changed its name to Motion Solutions (Aliso Viejo, CA) to better reflect their evolution into a custom designer of motion solutions for high-tech electromechanical systems. Developing custom solutions has lead to developing lines of proprietary products that the company manufactures in-house.

Posted in: Application Briefs, Motion Control, Microelectricmechanical device, Microelectromechanical devices, Microelectricmechanical device, Microelectromechanical devices, Suppliers, Bearings
Read More >>

Motor Drive

The RoadRunner SoftStep R213S microstepping motor drive from Testra Corp. (Tempe, AZ) features an onboard processor that treats the input steps as small vector moves, and chains them together with 250 or 256 microsteps per regular motor step with controlled accelerations. Dual chopper stabilized current comparators and auto-calibration eliminate communication discontinuities and maintain sine wave drive, reducing motor noise. The drives are equipped with jumpers installed with a divisor setting of 10 to make them Geckodrive compatible; jumpers can be reconfigured by the user. The drive microsteps in either 250 or 256 increments per step for DS (double-step) settings, 1 (full-step), 2 (half-step), 4, 8, 16, 32, 64, 128, and 256. The drive measures 2.5 × 2.5 × 0.825", input power is 20VDC – 80VDC, and current drive is 1 to 7 amps. Other features include resistor programmable current, opto-isolated inputs, and step frequency to 5 Mhz. Available options include custom waveforms to match individual motor characteristics, and user-programmable waveform.

For Free Info Visit http://info.hotims.com/61062-301

Posted in: Products, Manufacturing & Prototyping, Motion Control
Read More >>

Positioners

ALM Positioners (Rock Island, IL) released the Model MHL1P 10,000-pound-capacity single-column positioner that features 68.5" vertical travel in 35 seconds; a pendant-controlled, 4-HP, column-mounted hydraulic unit for lifting and lowering; solenoid- controlled safety pawls; 360-degree CW or CCW rotation; a rotator with 267,200 inch-pounds of torque; and a 48" base. It is offered as a dual-motor rotator and variable frequency drive (variable speed rotation of .75 to 2.3 RPM), as well as a single rotator.

Posted in: Products, Manufacturing & Prototyping, Motion Control
Read More >>

Linear Slide

Haydon Kerk Motion Solutions (Waterbury, CT) introduced the WGS Wide Guide Screw linear slide that utilizes a screw-driven carriage. Length and speed are not limited by critical screw speed, allowing high RPM, linear speed, and long stroke lengths. The slide offers stroke options of 6, 12, and 18" in three leads (0.1, 0.5, and 1.0"). Each slide comes with a size 17 and a size 23 motor mount. The slide utilizes sliding plane bearings on a low-profile aluminum guide rail. The lead-screw is made of stainless steel, and all moving surfaces include Kerkite® polymers running on a Kerkote® TFE coating. The slides come with wear-compensating, anti-backlash-driven carriages. Additional driven or passive carriages can be added, along with application-specific customization. Linear guides without the drive screw also are available.

For Free Info Visit http://info.hotims.com/61062-302

Posted in: Products, Manufacturing & Prototyping, Motion Control
Read More >>

The U.S. Government does not endorse any commercial product, process, or activity identified on this web site.