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Magnetostrictive Alternator

This innovation replaces the linear alternator presently used in Stirling engines with a continuous-gradient, impedance-matched, oscillating magnetostrictive transducer that eliminates all moving parts via compression, maintains high efficiency, costs less to manufacture, reduces mass, and eliminates the need for a bearing system.

Posted in: Mechanics, Mechanical Components, Machinery & Automation, Briefs, TSP

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A Kinematic Calibration Process for Flight Robotic Arms

The Mars Science Laboratory (MSL) robotic arm is ten times more massive than any Mars robotic arm before it, yet with similar accuracy and repeatability positioning requirements. In order to assess and validate these requirements, a higher-fidelity model and calibration processes were needed.

Posted in: Mechanics, Mechanical Components, Machinery & Automation, Briefs

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Working With Mechanical Motion Subsystems

Embedded motion subsystems are engineered to fit within a predefined physical space on a machine and tie into the machine's motion control system, ready to accept commands from a top-level computer interface, control card or PLC. This plug-and-play approach to motion can increase the performance while reducing development time and cost. Read more about these embedded mechanical systems in our latest technical paper.

Posted in: Machinery & Automation, White Papers

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Automating a Bottling Plant for Reaction Vessels

Lubrication-free lead screws fit the bill for feed mechanism IVD machine Tasked with the design and build of a fully automated in vitro diagnostics (IVD) bottling plant, an engineering firm specializing in the development of analytical medical equipment found itself presented with a unique challenge.

Posted in: Bio-Medical, Imaging & Diagnostics, Electronics, Automation & Controls, Medical, Machinery & Automation, Briefs, MDB

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IEC 61131-3 Now in Motion

The IEC 61131-3 standard defines 5 programming languages for PLCs and distributed control systems. More recently, dedicated motion companies such as Trio Motion Technology are incorporating the standard into their motion control hardware. By adding specific functions such as camming, electronic gearing, and interpolated motion the controllers have a widely supported usability on the factory floor. Additionally, such controllers can be very compact in size and low cost making them a good choice for a vast array of machines.

Posted in: Machinery & Automation, White Papers

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Lubricant Selection: What Every Design Engineer Needs to Know

Simply stated, lubrication refers to the age-old science of friction reduction. People have been using lubricants for thousands of years, experimenting with waxes and oils from vegetables, fish, and animals to move heavy materials with equipment designed to gain mechanical advantage. In more recent years, the discovery of petroleum oil in the 1800s ushered in a new era of lubrication developments as people learned how to refine this oil and use it for a variety of purposes. Machinery could now be developed to operate faster and under heavier loads by using lubricants to create a barrier that eliminates friction and metalon- metal contact.

Posted in: Materials, Mechanical Components, Machinery & Automation, White Papers

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Rotary Sensing Technologies for Medical and Robotic Shaft Angle Sensing Applications

This technical brief provides an overview of existing types of rotary sensor technologies, and compares the strengths and weaknesses of each type for use as through-hole shaft angle sensing devices. Today’s sensor technologies for robotic and medical applications include many devices that have evolved from industrial applications. Because of this general migration, they are not ideally suited to the requirements in new robotic and medical products. Specifically, conventional contacting and non-contacting sensing solutions do not offer the customization, small package size(s), and environmental and durability requirements that are so necessary in these custom applications.

Posted in: Bio-Medical, Positioning Equipment, Sensors, Medical, Robotics, Briefs, MDB

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