TechBlog

A CubeSat is a type of space research picosatellite with dimensions usually of 10×10×10 centimetres (i.e., a volume of exactly one litre), weighing no more than one kilogram, and typically using commercial off-the-shelf electronics components.

Developed through joint efforts, California Polytechnic State University and Stanford University introduced the CubeSat to academia as a way for universities throughout the world to enter the realm of space science and exploration.

Currently, a large number of universities and some companies and other organizations around the world are actively developing CubeSats. One of these companies Clyde-Space, has just developed an ‘off-the-shelf’ website with information and resources for various sized cubesats and their subsystems. Other suppliers such as ISIS and GomSpace are also offering products and services through their websites.
With their relatively small size, CubeSats can be made and launched for an estimated US$65,000–80,000 each (2004 US dollars). This low price tag, as compared to most satellite launches, has made Cubesat a viable option for schools and universities across the world.

Continue reading ‘Researchers And Students To Develop Small CubeSat Satellites, the Size of a Loaf of Bread’ »

Test engineers in industries ranging from aerospace and defense to consumer electronics are facing the challenge of testing increasingly complicated designs with shrinking timelines and budgets. To address these issues, engineers and scientists are incorporating new test and measurement technologies that are capable of meeting complex design requirements without raising costs. National Instruments (NI) has identified five trends it anticipates will significantly influence the test and measurement industry over the next three years.”Companies are turning to the latest technologies including PXI, FPGAs and multicore processors to develop high-performance test systems that can meet consumer demand for higher-quality products,” said Eric Starkloff, National Instruments director of test product marketing.

“Fortunately, more technology vendors are developing industry-standard tools capable of solving problems that previously depended on expensive, dedicated test systems.”

Continue reading ‘Test And Measurement Industry Trends Toward Software-Defined Instrumentation’ »

Acoustic waves play many everyday roles – from communication between people to ultrasound imaging. Now the highest frequency acoustic waves in materials, with nearly atomic-scale wavelengths, promise to be useful probes of nanostructures such as LED lights.

However, detecting them isn’t so easy.

Continue reading ‘Visualizing Atomic-Scale Acoustic Waves In Nanostructures’ »

Researchers at Northwestern University and Princeton University have created a new kind of polymer that, because of its extraordinary thermal and mechanical properties, could be used in everything from airplanes to solar cells.

The polymer, a nanocomposite that incorporates functionalized, exfoliated graphene sheets, even conducts electricity, and researchers hope to use that property to eventually create thermally stable, optically transparent conducting polymers.

Continue reading ‘By Adding Graphene, Researchers Create Superior Polymer’ »

Human-implantable RFID microchips face an uncertain future in the wake of developments that the technology’s developer, VeriChip, announced last week. The Delray Beach, Florida-based company announced it sold most of its assets to tool manufacturer Stanley Works for $45 million and that the rest of the company is for sale (see VeriChip Sells an RFID Business, More Change May Come). The remaining company essentially consists of the VeriMed Health Link business line, a patient identification service based on VeriChip’s controversial, FDA-approved line of implantable RFID tags for lifetime human identification.

“That business is not self-sustainable,” VeriChip vice president of corporate development Jay McKeage candidly told RFID Update. “It cannot stand on its own because of the cash burn involved in marketing to consumers.”

VeriMed Health Link is a service in which patients have an RFID tag injected under their skin in the arm to provide lifetime identification. The tag is encoded with a 16-digit unique ID number, which medical professionals with VeriChip-issued readers can use to access the patient’s complete medical history from a secure database. VeriChip markets the system on patient-safety benefits — emergency room doctors or other medical staff can access a patient’s medical history without relying on a patient response or an ID card. The idea is that even if a patient arrives unconscious or otherwise uncommunicative, his or her complete medical history is still accessible. The FDA approved VeriChip’s human-implantable passive RFID microchips in 2004, but adoption has been limited.

Continue reading ‘Implantable RFID Business ‘Not Self-Sustainable’’ »

Antennas serve as transducers between electromagnetic waves traveling in free space and guided electromagnetic signals in circuits. As such, they play a critical role in the performance of wireless communication systems. With the proliferation of mobile wireless services that deliver voice and/or data in smaller and smaller devices, the task to design an antenna for a portable unit that meets not only operational requirements but also aesthetic and packaging restrictions is becoming more and more challenging. As result, engineers rely on a combination of theory, simulation, and experimental investigation to arrive at a design that meets all the demands of a particular application.

Basic Antenna Parameters

The basic parameters of antenna are impedence, mismatch and ohmic efficiency, radiation pattern and polarization, directivity, gain and equivalent isotropically radiated power, and effective height and aperture. In addition, celebrated Friis equation is and equations for the signal to noise ratio (SNR) of an antenna and source-field relationships are also important.For a more detailed treatment of the material pointed out here, the reader is referred to “A HANDBOOK OF ANTENNA IN WIRELESS COMMUNICATION” OF CRC Press by Lal Chand Godara.

Continue reading ‘Future Antennas Will be Flat’ »

Engineers and applied physicists from Harvard University have demonstrated the first room-temperature electrically-pumped semiconductor source of coherent Terahertz (THz) radiation, also known as T-rays. The breakthrough in laser technology, based upon commercially available nanotechnology, has the potential to become a standard Terahertz source to support applications ranging from security screening to chemical sensing.Spearheaded by research associate Mikhail Belkin and Federico Capasso, Robert L. Wallace Professor of Applied Physics and Vinton Hayes Senior Research Fellow in Electrical Engineering, both of Harvard’s School of Engineering and Applied Sciences (SEAS), the findings will be published in the May 19 issue of Applied Physics Letters. The researchers have also filed for U.S. patents covering the novel device.

Using lasers in the Terahertz spectral range, which covers wavelengths from 30 to 300å, has long presented a major hurdle to engineers. In particular, making electrically pumped room-temperature and thermoelectrically-cooled Terahertz semiconductor lasers has been a major challenge. These devices require cryogenic cooling, greatly limiting their use in everyday applications.

Continue reading ‘Engineers Demonstrate First Room-Temperature Semiconductor Source Of Coherent Terahertz Radiation’ »

The U.S. Air Force Research Laboratory has authorized Raytheon Company to demonstrate target recognition technology designed to increase protection for ground forces without compounding risk to an aircraft stalking enemies who threaten those forces.

First in a laboratory and then aloft, the company expects to show how its Air-to-Ground Radar Imaging II program would permit aircraft at a safe distance to detect, track and target hostile forces in motion on the ground.

The laboratory demonstration is expected in autumn 2008, followed by a flight next spring aboard a Raytheon test aircraft.

Continue reading ‘Raytheon Develops Technology To Help Aircraft Protect Ground Forces’ »

Corning Glass

Corning is a world leader in delivering advanced optical solutions for a wide variety of markets. For over 150 years, Corning has solved complex material and process challenges across multiple, diverse industries. By calling upon its unmatched heritage in innovation and its unrivaled understanding of glass science, Corning enables applications for a broad array of commercial and industrial markets and sets the bar for state-of-the-art product design, superior manufacturing processes and techniques and above all, performance excellence.

Vertically Integrated Manufacturing

Corning is one of very few manufacturers with deep capabilities in materials science, optical design, shaping, coating, finishing and assembly. For customers this means reduced complexity, shortened manufacturing cycles and ultimately increased value. Corning delivers what its customers need - complete, end-to-end advanced solutions - efficiently, predictably and consistently. Continue reading ‘Corning’s Specialty Materials’ »

Founded in 1948, Andrews Glass Company has been a leader in custom glass fabrication for over fifty years. Andrews Glass Company slowly grew as its reputation for high quality standards and specialty glassware spread. Over the years, Andrews Glass has expanded its capabilities in specialty and precision glass fabrication for industrial and scientific applications and its Lab-Crest product line is highly respected for quality and precision. Andrews Glass Company has retained its unique mix of scientific and precision glassmaking capabilities, and is today counted among the USA’s top ten manufacturers in the field.

The heart of Andrews’ value to its customers lies in the skill and dedication of its employees. The average length of service is over ten years, with the average length of glassworking experience well over 15 years.

Continue reading ‘Specialty, Precision, and Electro-Optic Glass Products’ »