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Product of the Month: March 2015

Instron, Norwood, MA, introduced the AVE 2 strain measurement system that conforms to testing standards such as ISO 527, ASTM D3039, and ASTM D638. The video extensometer utilizes patented measurement technology, and adapts to the normal fluctuations of indoor environmental conditions. It can be adapted to any testing machine that uses a ±10V analog input. Designed to reduce errors from thermal and lighting variations, the device uses the real-time 490-Hz data rate while achieving a 1-micron accuracy. It allows for testing under multiple environmental conditions and can be used for strain measurement with Digital Image Correlation (DIC). The device measures both modulus and strain-to-failure of most materials including plastics, metals, composites, textiles, films, and bio-materials.

Posted in: Products, Measuring Instruments

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Hubble Spinoffs: Space Age Technology for the Masses

By Bruce A. Bennett Over the plast 25 years, some of the sophisticated technology developed for the HST has been successfully spun off and commercialized to improve life on Earth.

Posted in: Articles, Features, Cameras, Photonics

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Mechanically Induced Nucleation Improves Crystalline Quality During Melt Growth of Semiconductors

Significantly lower supercooling results in the ideal growth condition of single crystal nucleation. Marshall Space Flight Center, Alabama For certain semiconductors with important applications, the existing bulk crystal growth technique from the melt usually results in poor-quality multi-crystalline ingots that cause the typically low yield of the commercial growth process. The low-quality, multi-grained crystal growth is mainly caused by the large supercool of the melt, which prohibits the ideal growth condition that a small, single-crystal nucleus forms at the very tip and grows into a large single crystal. For instance, semi-insulating cadmium zinc telluride (CdZnTe) crystal is a highly promising material for room-temperature x-ray and gamma ray detectors. However, the major hurdle in using the CdZnTe crystals is its cost. The ability to pack many data acquisition channels (hundreds) with the stopping power for high-energy radiation requires large single crystals of CdZnTe.

Posted in: Briefs

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Fabrication of a Nanopipette Array for Biosensing

Ames Research Center, Moffett Field, California Development of biosensors is an active field due to a wide range of applications in lab-on-a-chip, diagnostics of infectious diseases, cancer diagnostics, environment monitoring, biodetection, and others. One of the strategies used for selective identification of a target is to preselect a probe that has a unique affinity for the target, or can uniquely interact or hybridize with the target — a lock and key approach. In this approach, one then needs a platform to support the probe and a recognizing element that can recognize the said interaction between the probe and the target. Electrical readout biosensors have gained much attention because, in principle, they can be made more compact than optical technologies.

Posted in: Briefs

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Fabrication of a Nanopipette Array for Biosensing

Ames Research Center, Moffett Field, California Development of biosensors is an active field due to a wide range of applications in lab-on-a-chip, diagnostics of infectious diseases, cancer diagnostics, environment monitoring, biodetection, and others. One of the strategies used for selective identification of a target is to preselect a probe that has a unique affinity for the target, or can uniquely interact or hybridize with the target — a lock and key approach. In this approach, one then needs a platform to support the probe and a recognizing element that can recognize the said interaction between the probe and the target. Electrical readout biosensors have gained much attention because, in principle, they can be made more compact than optical technologies.

Posted in: Briefs, Sensors

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Circuit Design Tool

Sunstone Circuits, Mulino, OR, announced DFMplus, a Design to Manufacturing tool that allows potential issues to be fixed in the PCB design phase. The tool helps users verify PCB designs before ordering. The tool features a preview of possible failure points, provides efficient transfer of design file data into manufacturing, and enables designers to submit partial designs, or regions of the design, as a section-by-section check.

Posted in: Products

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Google Glass for Industrial Automation

A new concept uses Google Glass for operating machinery, with all of the benefits delivered by wearable computing in an industrial environment. With Google’s Web-enabled glasses, status or dialog messages can be projected via a head-up display directly into a person’s field of vision. Online information and communication is also possible with this innovative device, and error messages can be acknowledged using a touchpad.

Posted in: Articles, Optics, Machinery & Automation

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