Motion Control

Motors Keep Telescope Operating in Record-Low Antarctic Temperatures

At Concordia Station in Antarctica, there is a telescope mount that has been operating for a few years. Recently, there was a new record temperature at the Dome C site: -84.6 °C, or -199 °F. Not many things operate well in such conditions, but the telescope mount — which has to move continuously — used for scientific studies by the Laboratoire Universitaire d’Astrophysique de Nice (LUAN) is one of them.

Posted in: Applications, Application Briefs

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Robots and Vision Combine for Accurate Sheet Metal Cutting

In the general construction industry, many different parts are cut from sheet metal and then welded together on a large machine or vehicle. The trouble arises when the sheets are placed on the cutting table; the larger and heavier they are, the more difficult they are to position on the table. Without proper alignment, the sheet is likely to be cut outside acceptable tolerances, which results in waste and has a negative impact on the welding process. When sheets vary along the X, Y, and Z axes, the issue of exact positioning becomes even more problematic.

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Synchronizing Hydraulic Axes in a Pultrusion Machine

Many hydraulically operated machines perform adequately with on/off “bang-bang” valves, but some need special controls to avoid maintenance problems and deliver quality production output. This is particularly true when multiple hydraulic axes need to be synchronized. In these cases, designers should use an electro-hydraulic motion controller with multi-axis synchronization capability.

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Removing Digestive Tumors With a Therapeutic Endoscopy Teleoperation Robot

Endo Tools Therapeutics (ETT) is a medical device company based in Brussels, Belgium that was established in 2008. The company was formed after an innovative research project started in 2004 at Erasme Hospital (Université Libre de Bruxelles) and the faculty of engineering (Beams department, Université Libre de Bruxelles), based on the need for gastroenterologists to have more degrees of freedom when maneuvering an endoscope.

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Synchronizing Hydraulic Axes in a Pultrusion Machine

Many hydraulically operated machines perform adequately with on/off “bang-bang” valves, but some need special controls to avoid maintenance problems and deliver quality production output. This is particularly true when multiple hydraulic axes need to be synchronized. In these cases, designers should use an electro-hydraulic motion controller with multi-axis synchronization capability.

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Electromobility Drives Green Vehicles

Environmental friendliness, economy, and individuality are the fundamental ideas associated with the topic of eMobility (electromobility). The increasing scarcity of resources and constantly rising prices are being felt by everyone, as will be the follow-up costs if we don’t succeed in reducing environmental pollution such as greenhouse gas emissions. At the same time, the demand for individual mobility is growing, e.g. in big cities and the urban centers that surround them, in which around 40% of the world's population will live by 2015.

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Closed System Technology Drives the Trend Toward Safer Dispensing of High-Purity Chemicals

In dozens of industries and in millions of applications around the world, dangerous chemicals are transferred from their original shipping containers into smaller jugs or buckets, or applied to other end-use processes. Historically, the predominant dispensing method in many of these applications has been through an open system where the liquid is poured out of the container. In many industries using high-purity chemicals, a popular dispensing method is a semi-closed system that pumps the liquid out of a drum or container. In these systems, a dip-tube draws chemicals from vertically oriented containers using an attachable hand or electric pump. While a step in the right direction, the semi-closed dispensing system requires a dip-tube that needs to be removed and re-inserted each time a new drum is used, exposing the end user to drips, leaks, and fumes during transfer. The primary drawback of all open and semi-closed systems is that they needlessly expose the user, equipment, and the environment to potentially hazardous chemicals and vapors.

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