Features

Protecting Data Signals Through Isolation

Many of us believe that if we don’t have ground loops we don’t need to isolate analog I/O signals. Yet there are five very real – and very different – reasons to isolate every one of your analog signals! If you’ve had problems on past applications, chances are you experienced one of the following: Signal crosstalk Common-mode voltage DC common-mode rejection AC common-mode rejection Over-range and input protection issues. Isolating power sources and sensor signals is the most effective way to address these problems; understanding how measurement inputs become corrupted in the first place will illustrate this.

Posted in: Articles

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NASA Energy Concept Could Harness the Power of Ocean Waves

NASA Jet Propulsion Laboratory (JPL) researchers who developed a new way to power robotic underwater vehicles believe a spin-off technology could help convert ocean energy into electrical energy on a much larger scale. The researchers hope that clean, renewable energy produced from the motion of the ocean and rivers could potentially meet an important part of the world’s demand for electricity.

Posted in: Features, GDM, Articles, Energy, Hydroelectric Power, Renewable Energy

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High-Performance Computing Tools in Neural Imaging

High-performance computing (HPC) has transformed science and engineering over the past 20 years, but some fields have yet to fully realize its benefits due to software limitations. This article discusses software approaches to increase productivity in the life science discipline of neural imaging. Like other imaging-based endeavors, neural imaging faces daunting quantities of raw data, proprietary image formats, lossy vs. non-lossy compression, detector noise, complex object segmentation, and visualization challenges.

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Machine Vision Guides Robot Motion

Machine vision can quickly and accurately determine the location of parts so they can be inspected, measured, or manipulated by a robot. An example is using machine vision to guide a robot unpacking one-gallon cans from a large pallet of cans. Machine vision components — cameras, vision processors, and software — were provided by DALSA, and Faber Industrial Technologies developed the can-picking robot and integrated the robot with the machine vision.

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Hermetic Feedthroughs Critical for Flywheel Energy Storage

Next-generation flywheels are made possible by advances in material science in rotor technology, as well as the application of magnetic bearings running in a vacuum environment. While the movement of the rotating flywheel into a vacuum eliminates parasitic drags, such as windage friction losses, mechanical bearings are not suited to operate in a vacuum or for the high speed requirements of the new designs.

Posted in: Articles, Motion Control

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Motion Control Advancements Ease Medical Procedures

Whether performing an intricate surgery, positioning a patient, or taking a tissue sample, today’s biomedical devices are taking advantage of advanced motion control devices to ensure accurate control and movement in biomedical applications. Robots are making it possible to perform surgical procedures not only with higher precision than before, but in less time and with less pain and suffering for the patient. Moreover, improvements in the design and packaging of motors and other control components are making it possible to shrink biomedical devices and make it easier to perform procedures in tight, confined spaces.

Posted in: Articles, Motion Control

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Dr. Peter Shirron, Senior Research Scientist, Cryogenics and Fluids Group, Goddard Space Flight Center

Dr. Peter Shirron, a senior research scientist with NASA’s Cryogenics and Fluids Group, led the team of researchers credited with developing the first continuous duty multi-stage adiabatic demagnetization refrigerator (ADR) used to cool sophisticated space-borne detector arrays to temperatures below 2 Kelvin.

Posted in: Who's Who

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