Articles: Electronics & Computers

Designing a versatile data acquisition (DAQ) system begins by comparing features of the signal of interest to the capabilities of current state-of-the-art A/D converters. Specifically, signal...

Briefs: Information Technology
Progressive Classification Using Support Vector Machines

An algorithm for progressive classification of data, analogous to progressive rendering of images, makes it possible to compromise between speed and accuracy. This algorithm uses support vector machines (SVMs) to classify data. An SVM is a machine learning algorithm that builds a...

Briefs: Information Technology
Active Learning With Irrelevant Examples

An improved active learning method has been devised for training data classifiers. One example of a data classifier is the algorithm used by the United States Postal Service since the 1960s to recognize scans of handwritten digits for processing zip codes. Active learning algorithms enable rapid training...

Features: Photonics/Optics

A nearly geometric growth in the data requirements for many machine vision applications is pushing 32-bit processing to its limits. The challenge is not in processing power, however, but in addressing memory...

Application Briefs: Photonics/Optics

For 3D viewing to be convenient on small, portable devices, it must be autostereoscopic, thus eliminating the requirement for 3D “glasses.” The display devices must also provide 2D and 3D...

Briefs: Photonics/Optics
Solar Rejection Filter for Large Telescopes

To reject solar radiation photons at the front aperture for large telescopes, a mosaic of large transmission mode filters is placed in front of the telescope or at the aperture of the dome. Filtering options for effective rejection of sunlight include a smaller filter down-path near the focus of the...

Briefs: Photonics/Optics
Free-Space Optical Interconnect Employing VCSEL Diodes

Sensor signal processing is widely used on aircraft and spacecraft. The scheme employs multiple input/output nodes for data acquisition and CPU (central processing unit) nodes for data processing. To connect 110 nodes and CPU nodes, scalable interconnections such as backplanes are desired...

Briefs: Photonics/Optics

Two recipes for ensuring critical coupling between a single-mode optical fiber and a whispering-gallery-mode (WGM) optical resonator have been devised. The recipes provide for phase...

Products: Photonics/Optics

Marshall’s Industrial and Security Division (El Segundo, CA) has developed a new series of pinhole lenses designed to protect employees when monitoring high temperature and/or hostile...

Products: Photonics/Optics

The Specialised Imaging Shadowgraph (SIS) camera from Specialised Imaging (Tring, UK) enables high resolution digital imaging of ultra-fast events in ambient and low-light environments. Integrating this camera with an...

Products: Photonics/Optics

Laser Components (Hudson, NH) offers solid state laser coatings with high damage thresholds, including coatings for Q-switched lasers at 1064 nm, 532 nm, 355 nm, or 266 nm. Coatings for short pulse...

Products: Photonics/Optics

Optical Surfaces Ltd (Surrey, UK) can generate highly aspheric parabolic mirrors with off-axis angles approaching 30 degrees and focal lengths as short as 100mm. They can also fabricate high-performance...

Products: Photonics/Optics

Toshiba Teli America (Irvine, CA) has introduced the CS8581QF, a remote-head FireWire camera system for high-speed industrial imaging. The CS8581QF offers 133 fps at full 640 × 480 resolution (8bit monochrome),...

Products: Photonics/Optics

The SC-3 Sub-Miniature Resonant Optical Scanner from Electro-Optical Products (Fresh Meadows, NY) is an electromagnetically driven moving mirror device that deflects a light beam with a continuous...

Products: Photonics/Optics

The CMOS camera models ProgRes® CT1, CT3 and CT5 from Jenoptik (Jena, Germany) are now equipped with USB interface. With an extended resolution up to 5 Megapixel and a live frame rate up to 20 fps the new USB Camera of...

Products: Photonics/Optics

Lincoln Laser (Phoenix, AZ) has announced a new family of RTA Polygonal Scanners. You may select a precision ball bearing motor for operation from 500 to 12,000 RPM or a self-generating air bearing motor for operation...

Products: Photonics/Optics

Invisual E. Inc. (Toronto, Canada) has introduced the ICAM digital weld viewing and monitoring system as a tool for improving welding automation. The ICAM system extends the operatorís view of the weld zone by...

News: Energy

Duke University engineers have developed a novel approach that they believe can more efficiently harvest electricity from the motions of everyday life. Although motion is an abundant...

Products: Green Design & Manufacturing

As part of the design process, engineers must predict the performance of their LED system and determine if it will meet specifications at real operating temperatures and electrical drive conditions. The ETΦ™...

News: Green Design & Manufacturing
Permeable Pavement and Reducing Water Runoff

Paved parking lots and driveways often create an easy pathway for pollutants to reach underground water sources and change the natural flow of water back into the ground. Today, EPA announced a study that will investigate ways to reduce pollution that can run off paved surfaces and improve how water...

Blog
A Smarter Electric Grid

A stark reminder of our country’s outdated infrastructure is the sight of uniformed utility company personnel canvassing neighborhoods to read electric and gas meters in homes and businesses. For many residents, this means having to arrange access for meter readers. I have circumvented this issue by doing my own...

Blog
MEMS Industry Fueled By New Technology

Like other sectors, the market for microelectromechanical systems (MEMS) stagnated during the economic downturn. According to a report by market research organization Yole Developpement titled “State of the MEMS Industry 2009 Report,” sales of MEMS-based products are slated to reach $6.9 billion in...

Question of the Week
Should net neutrality rules be imposed on broadband service providers?

This week’s question concerns net neutrality. The Federal Communications Commission last week began drafting legislation that would prevent phone and cable companies from abusing their control over the broadband access market, by prohibiting them from censoring certain...

Products: Energy

A wireless monitoring system from Arch Rock (San Francisco, CA) provides continually updated information on a data center's electrical usage and thermal status -...

News: Green Design & Manufacturing
"Earth Binoculars" Sense Disasters From Space

New Tel Aviv University technology combines sophisticated sensors in orbit with sensors on the ground and in the air to create a “Hyperspectral Remote Sensor” (HRS). HRS can give advance warnings about water contamination after a forest fire, or swiftly alert authorities of a pollution...

News: Energy

North Carolina State University engineers have developed a new material that would allow a fingernail-size computer chip to store the equivalent of 20 high-definition DVDs or 250 million...

Question of the Week
Should there be a mandate to buy health insurance?

This week’s question concerns the health-care reform bill. One of the controversial bill’s provisions, now in Congressional debate, revolves around an escalating series of fines that would be imposed on individuals refusing to purchase health insurance. The fines, slated to take effect...

Products: Energy

Roughly the size of a postage stamp, the PC-10 ultracapacitor from Maxwell Technologies Inc. (San Diego, CA) has a proprietary electrode for enhancing the reliability of backup power in...

Products: Energy

Newport Corporation’s Oriel Instruments division (Irvine, CA) has introduced the Oriel IQE-200TM, an instrument that permits simultaneous measurements of the external quantum efficiency (EQE) and the...

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