Eliminating EMI in motion systems

Jared Rader — Thu, 09 Feb 2012 10:25:30 -0600

Authored by:
Lee Stephens
Senior Motion Control Engineer
Kollmorgen
Radford, Va.
Edited by Robert Repas
robert.repas@penton.com
Key points:
• Protection against electromagnetic interference involves nothing more than sound mathematical and logical processes.
• EMI can take the form of both a magnetic and an electric component.

Giving Power-over-Ethernet some muscle

Jared Rader — Thu, 19 Jan 2012 10:04:41 -0600

Authored by:
Robert Repas
Associate Editor
robert.repas@penton.com
Key points:
• Power- sourcing equipment (PSE) supplies power to the Ethernet system. Powered devices (PD) use power supplied by the PSE.

Do’s and don’ts in flexible-circuit design

Jared Rader — Thu, 08 Dec 2011 10:11:05 -0600

Authored by:
Mark Finstad
Flexible Circuit Technologies Inc.
Minneapolis, Minn.
Edited by Robert Repas
robert.repas@penton.com
Key points:
• A flexible printed circuit is as much a mechanical device as it is an electrical device.
• The neutral bend axis may not be in the exact middle of the material stack.

Noncoaxial motors enhance differential applications

Jared Rader — Thu, 17 Nov 2011 10:33:13 -0600

Authored by:
John R. Casey
Project engineer and designer
Independent Engineering Concepts
Appleton, Wis.
Edited by Robert Repas
robert.repas@penton.com
Key points:
• Electric machines with noncoaxial rotors date back to the 19th century, but today’s electronic controls now make them practical.

Test & Instrumentation Technology Guide

Jared Rader — Thu, 20 Oct 2011 15:02:42 -0500

Authored by:
MicroStrain Inc.
Williston, Vt.
Edited by Robert Repas
robert.repas@penton.com
Key points
• The noise produced during a shuttle launch has considerable detrimental effect on the safety of spacecraft, ground facilities, and support equipment.

Servomotors make Kirk-Rudy tabbing machines faster and more accurate

Jared Rader — Thu, 06 Oct 2011 09:28:27 -0500

Resources:
Kirk-Rudy Inc.
Red Lion Controls
Yaskawa America Inc.

Multi-axis load cells measure force and torque in six dimensions

Jared Rader — Thu, 08 Sep 2011 13:40:32 -0500

Authored by:
John Ramming
President
George Sakona
Sr. Mechanical Engineer JR3 Inc.
Woodland, Calif.
Pat Byrne
Comco Inc.
Burbank, Calif.
Edited by Robert Repas
robert.repas@penton.com

Sensor Sense: Retroreflective ultrasonic sensors

Jared Rader — Thu, 11 Aug 2011 09:48:54 -0500

Edited by Robert Repas

Wind turbine blades that change pitch boost wind power efficiency

Jared Rader — Thu, 11 Aug 2011 09:11:19 -0500

Authored by:
Robert Repas
Associate Editor
robert.repas@penton.com

Linear actuators achieve precision motion control with little to no backlash

Jared Rader — Thu, 23 Jun 2011 09:47:18 -0500

Authored by:
Tony Kliber
Lead Project Engineer
Nexen Group Inc.
Vadnais Heights, Minn.
Edited by Robert Repas
robert.repas@penton.com
Key points:
• Roller pinions can provide accurate positioning up to ±30 µm (±0.00118 in.)
• The basic design of a roller-pinion system virtually eliminates backlash.

More articles by Robert Repas