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www.us-tech.com
Automated probing lets you control the variables.
February, 2013
Nectar: Fuel Cell in Your Pocket
Las Vegas, NV — Want to buy a fuel cell online? They’re available now (or will be soon) from Brookstone’s web site, and while it won’t power your whole house, it will be available as an emergency charging source for your power-hungry mobile devices. Made by Lilliputian Systems,
the pocket-size fuel cells garnered the prestigious Consumer Electron- ics Show (CES) Innovations Award for Design and Engineering in the Portable Power category at the re- cent show in Las Vegas. The Nectar™ Mobile Power
The Huntron Access DH Prober is designed with your test and measurement needs in mind.
Te Access DH dual head Prober lets you control variables such as dexterity, high density, tight lead spacing and speed with precise, fast and repeatable guided probing.
Applications Examples - - Huntron Power-off ASA - Precision Mechanical Applications - Boundary Scan - Point-to-point Measurements
- Guided Probe Measurements - Image Capture and Comparison - Stimulus/Response Measurements - Multiple Probe Arrays
System is a compact, lightweight and highly portable device that powers and charges virtually any of the bil- lions of consumer electronic devices — smart phones, tablets, mp3 play- ers, eReaders, Bluetooth headsets, digital cameras, etc. — that comply with the USB 2.0 power standard. This new product has the capacity to keep consumer electronic devices humming for 2+ weeks by inserting a single Nectar Pod™ power cartridge into the mobile power system. Using Nectar, consumers get 10 times the run-time versus traditional chargers and will never again worry about running out of power.
Power is from a standard USB
2.0 interface with +5V output, more than 2.5W peak power, offering 55,000mW-hours of energy in a sin- gle nectar pod. This is equivalent to at least 10 recharges of a typical smart phone per nectar pod. It turns on instantly, and is always available to allow recharging to begin immedi- ately.
Both the Nectar Mobile Power
System and Nectar Pods cartridges have been approved for carry-on and use aboard regular commercial air- craft by the UN International Civil Aviation Organization (ICAO) and U.S. Department of Transportation. In addition, Nectar significantly re- duces the need for consumers to trav- el with cables and power adapters and offers a truly friendly solution to the myriad of power challenges faced by today’s consumer. Brookstone is the first retail
launch partner, and Nectar will ini- tially be exclusively available at Brookstone and on
Brookstone.com. It will retail for $299.99, and replace- ment Nectar Pod cartridges will re- tail for $9.99 each. Contact: Web:
www.nectarpow-
er.com r Quantum Spin Liquid Continued from page 1
manent alignment, so the electron spins constantly change direction, even at temperatures close to ab- solute zero. Named after a mineralogist, Her-
Access DH shown above with standard spring probes mounted to the Z axis heads Adaptable by Design
Te ability to customize the Access DH probe head assemblies combined with software created using the Huntron Workstation SDK, Hardware SDK or Remote Control provides many integration and customization opportunities. Te probe head design includes pre-wired interconnections for adding built-in USB, Firewire or Ethernet instrumentation at the head.
Built-in interface connections on Z head
Test Automation
As the density and complexity of circuit boards has increased, the need to accurately place a probe on a test point has grown. Huntron recognized this issue early on and released its first robotic test platform in 1991. Our Access Probers have matured over the years with increased accuracy and the ability to be customized based on your test and measurement needs.
bertsmithite was proposed to be a quantum spin liquid by Daniel Nocera and Young Lee of the Massachusetts Institute of Technology (MIT) in 2007. Herbertsmithite has a peculiar crystal structure in which its copper atoms lie at the corners of triangles with interac- tions that favor having the up-down alignment pattern of electronic spins on each corner. However, while elec- trons on two of the corners of a triangle can align, one up and one down, their alignment produces a quandary for the electron on the third corner, which can- not align with both. “The electronic spin on the third
copper atom essentially doesn’t know what to do with itself,” says Collin Bro- holm, a physicist at NIST and Johns Hopkins University, who was also part of the team that previously character- ized a different material with a spin- liquid-like state. (See the May 15, 2012, story “NIST Contributes to Dis- covery of Novel Quantum Spin-Liquid” at
www.nist.gov/public_affairs/tech- beat/
tb20120515.cfm#spin)
Copper Atoms “The locations of copper atoms
Custom multi-probe assembly mounted on the Access DH Z head
To get more details on what you can do with the Huntron Access DH, call or click, 800-426-9265 or
www.huntron.com.
in Herbertsmithite suggest the mate- rial might not be able to order itself magnetically, which is interesting because it is so unusual,” Broholm continued. “But testing the hypothe- sis of a quantum spin liquid required the right instrument and very pure crystals of Herbertsmithite, and un- til recently, we had neither.” The MIT group provided the crys-
tals after managing to grow them arti- ficially in their lab, a painstaking process that took years. To determine the behaviors of the electronic spins in
See us at IPC/APEX Booth 2516
the crystals’ copper atoms, the team used the Multi-Axis Crystal Spectrom- eter (MACS) at the NIST Center for Neutron Research. MACS, which scat- ters a beam of neutrons off a sample of material, showed that Herbertsmithite scattered neutrons in a highly unusual way: instead of all the scattered neu- trons possessing identical energies at a given momentum, as they do with most magnetic materials, the neutrons had a wide spectrum of energies. This is hard evidence that Herbertsmithite indeed has spin-liquid properties. The apparent simplicity of Her-
bertsmithite belies the complexity of the spin liquid state that it apparent- ly supports, Broholm says, which could make it useful someday. “The structural simplicity of
Herbertsmithite is valuable if we are to put the quantum spin liquid to use — as proposed for information pro- cessing, for example,” Broholm said. “Complex chemistry usually brings disorder, but this material is rela- tively simple, so it realizes the quan- tum spin liquid with higher fidelity.” The research was funded in
part by the Department of Energy and the National Science Founda- tion. The National Institute of Stan- dards and Technology (NIST) is an agency of the U.S. Department of Commerce. Web:
www.nist.gov r
Smart Grids Continued from page 6
pacitors make them attractive for such applications. Supercaps will im- prove performance with new materi- als — including nano-structured met- al oxides, perovoskites, nanotubes and graphene — increasing capacity 5-10 times compared to activated- carbon supercapacitors. Contact:
www.nanomarkets.net r
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