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www.us-
tech.com
December, 2011 Antimatter Mysteries Continued from page 1
of years ago, most of the matter and all of the antimatter vanished in this fashion, leaving behind a tiny bit of matter awash in cosmic energy. What we see around us today, from stars to rocks to living things, is made up of that excess matter, which survived because a bit more of it existed. “The question is, why was there
Helping You Solve Circuit Board Problems Since 1976
When Huntron started in 1976, the goal was to provide a test instrument that made it easy to find catastrophic circuit problems. Huntron Trackers quickly gained the reputation for “being the best at finding the worst”. 35 years later, Huntron still carries on this tradition with flexible, automated diagnostic solutions that help people solve circuit card problems.
The Experts in Power-off Diagnostics
Troubleshooting electronic circuits is an art, based largely on experience and intuition. Huntron is well known for their analog signature analysis (ASA) power-off troubleshooting method that takes full advantage of a technician’s comparative testing skills.
Tracker 2800
Benefits - - Test PCBs that cannot be powered up - Save on outside repair costs
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 needs.
Applications Examples - - Huntron Power-off ASA - RF Near Field Signature Analysis - Boundary Scan - Point-to-point Measurements
Still Made in the USA!
Huntron has its loyal customers to thank for the last 35 years. We take pride in providing our customers with exceptional customer service, knowledgeable technical support and the fact that we still manufacture all of our products in the USA.
Assembling an Access DH
Te next 35 years should be even better. Call or click, 800-426-9265 or
www.huntron.com.
- PCB documentation is not necessary - Software based signature storage
an excess of one over the other in the first place?” says Pieter Mumm, a physicist at NIST’s Physical Meas- urements Lab. “There are lots of the- ories attempting to explain the im- balance, but there’s no experimental evidence to show that any of them can account for it. It’s a huge mystery on the level of asking why the uni- verse is here. Accepted physics can’t explain it.” An answer might be found by
examining radioactivity in neutrons, which decay in two different ways that can be distinguished by a spe- cially configured detector. Though all observations thus far have invariably shown these two different ways occur with equal frequency in nature, find- ing a slight imbalance between the two would imply that nature favors conditions that would create a bit more matter than antimatter, result- ing in the universe we recognize. Mumm and his collaborators
from several institutions used a detec- tor at the NIST Center for Neutron Research to explore this aspect of neu- tron decay with greater sensitivity than was ever possible before. (See: H.P. Mumm, T.E. Chupp, R.L. Coop- er, K.P. Coulter, S.J. Freedman, B.K. Fujikawa, A. Garc!a, G.L. Jones, J.S. Nico, A.K. Thompson, C.A. Trull, J.F. Wilkerson and F.E. Wietfeldt. “New limit on time-reversal violation in be-
ta decay.” Physical Review Letters, Vol. 107, Issue 10, DOI: 10.1103/Phys- RevLett.107.102301.) For the moment, the larger an-
swer has eluded them — several years of observation and data analysis once again turned up no imbalance be- tween the two decay paths. But the improved sensitivity of their approach means that they can severely limit some of the numerous theories about the universe’s matter-antimatter im- balance, and with future improve- ments to the detector, their approach may help constrain the possibilities far more dramatically. “We have placed very tight con-
straints on what these theories can say,” Mumm says. “We have given theory something to work with. And if we can modify our detector success- fully, we can envision limiting large classes of theories. It will help ensure the physics community avoids travel- ing down blind alleys.” Two types of neutron decay pro-
duce a proton, an electron and an electron antineutrino but eject them in different configurations. The ex- periments at NIST detected no im- balance, but the improved sensitivity could help place limits on competing theories about the matter-antimatter imbalance in the universe. The research team also includes
scientists from the University of Washington, the University of Michi- gan, the University of California at Berkeley, the University of Notre Dame, Hamilton College and the University of North Carolina at Chapel Hill. Funding was provided by the U.S. Department of Energy and the National Science Founda- tion.
Contact: Web:
www.nist.gov r
Juice Tech & TE Team Up for Electric Vehicle “Smart Charging”
RF Probes mounted on Access DH
- Guided Probe Measurements - Image Capture and Comparison - Stimulus/Response Measurements - Multiple Probe Arrays
Continued from page 1
with any 120V receptacle. The cord has a charging status light bar which illuminates during charging as well as a dashboard conveying the price of electricity. Utility companies can con- trol the device through the smart socket to enable Demand Response during peak periods. Inline safety cir- cuitry protects the system and users. The smart socket fits over a
standard 120 volt receptacle without any electrical wiring, site permitting or inspection, drastically reducing the cost to install smart charging technology. The smart socket meters the electricity consumed by the EV and includes anti-theft, anti-tamper security mechanisms confirming only authorized EVs are drawing power. “Electric vehicles will change
the way we fuel our cars and manag- ing this load is critical for a clean and safe utility grid,” said Aaron Mart- lage, Juice Vice President, Global Strategy. “Plug Smart and TE have teamed up to make economical, intel- ligent electric vehicle charging a re- ality via Level 1 smart charging cords and smart sockets.” TE and Plug Smart will be pi-
Smart charging connector at charging station.
Contact: TE Connectivity/Tyco
Electronics Corp., 1050 Westlakes Drive, Berwyn, PA 19312 % 610-893-9800 Web:
www.te.com or
www.plugsmart.com r
loting the Level 1 smart cord and smart socket in a nationwide pro- gram with utilities, corporations and universities.
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