Box includes an integrated soft-sided
cooler that fits inside to keep food cool
during transport. And the things seem
to be popular, as they were back-ordered as of this writing. But you
can get a lot of charcoal for the $199
FANS DELIVER HIGH
■ Fans offer counter-rotation and high
An interesting pair of fans — the
San Ace 60 and 80 models —
are now offered by Sanyo Denki
Co., Ltd. ( www.sanyo-denki.com).
Available in 12V, S- and H-speed
models, they are designed for
use with servers, storage systems,
communications equipment, and a
range of industrial machinery.
The design is based on twin
counter-rotating fans that produce
what the company claims to be the
highest airflow and static pressure
capabilities in the industry. They offer
a maximum airflow of 4. 53 m3/min
and static pressures up to 550 Pa.
Power consumption is as low as 43. 2
W, with noise generation as low as 68
dB, and the rated life expectancy is
40,000 hr @ 60°C.
The San Ace 60 measures 60 mm
sq by 76 mm thick, and the Ace 80 is
80 mm sq by 80 mm thick. Optional
features include tach and lock rotor
sensor outputs and PWM control.
Even in small quantities, you can pick
them up for about $40. Plan ahead,
though, because delivery runs eight
to 12 weeks.
COMPACT PCC FOR
Component manufacturer EPCOS
( www.epcos.com) recently introduced a power capacitor chip (PCC)
PHOTO COURTESY OF EPCOS AG.
■ The EPCOS PCC fits IGBT modules
of most suppliers.
with a busbar that fits the IGBT
modules of most major suppliers. The
cube-like design has dimensions of
280 x 110 x 120 mm and a volume fill
factor of nearly one, which is aimed
to allow the design of highly compact
At a rated voltage of 900 VDC,
the device offers a capacitance of
1,000 F (yes, farads). The ESL for the
entire PCC, including the busbar, is
a maximum of 15 nH. As a result,
IGBT modules with steep switching
edges experience negligible voltage
INDUSTRY AND THE
RESEARCH SITE ONLINE
Question: What do the following organizations have in
common: Acoustical Society of America, American
Geophysical Union, American Institute of Aeronautics and
Astronautics, American Institute of Physics, American
Physical Society, American Society of Civil Engineers,
American Society of Mechanical Engineers, American
Vacuum Society, The Electrochemical Society, The Institute
of Electrical and Electronics Engineers, Institute of Physics
Publishing, Optical Society of America, Society of
Automotive Engineers, Society for Industrial and Applied
Mathematics, and SPIE? No, it isn’t that they all offer their
members cheap life insurance. The pertinent fact is that
they all teamed up to create the Scitopia research site,
which is quite an impressive feat of organization, as well as
digital grunt work. Officially launched June 3 at the Special
Libraries Association’s annual conference, it is a free search
portal containing more than three million documents,
including peer-reviewed journal articles and conference proceedings, spanning 150 years of science and technology.
The site is still in the beta stage, but if you have a question
about any subject addressed by any of the above organizations, just log onto www.scitopia.org and ask away.
COMPUTER MUSEUM OPEN FOR
■ The Computer History
Museum, based in Mountain
View, CA, offers a look at
literally tons of vintage
It looks a lot like your
neighborhood used computer shop. It even looks a little like my garage. But neither
contains as much worthless digital junk as the Computer
History Museum (CHM) ( www.computerhistory.org).
Its collection encompasses about 112 international
manufacturers and artifacts that once filled 7. 5 40 ft
oceangoing containers. The museum’s holdings include
nearly 50,000 objects, photographs, and films, as well
as 4,000 linear feet of documentation and several
hundred gigabytes of software. But if that weren’t
enough, SAP Global Communications, which has
supported the museum from the beginning, recently
donated $250,000 to allow CHM to acquire a new
collection of rare computers and related items, previously
slated for destruction, from a remote warehouse in
northwestern Germany. So if you want to ogle some things
ranging from, oh, a VIC- 20 to a CDC 6600, just drop in.
Admission is free.