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ADVANCED MATERIALS & PROCESSES •
JUNE 2014
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l i terature
products &
faster, more precise heating, reduced thermal drift, and
improved image resolution during in situ experiments,
overcoming thermal stability limitations inherent in con-
ventional furnace-based TEM heating holders. The
holder also includes contacts to
allow application of electrical bias
to the sample and is optimized to
accept a variety of sample geome-
tries, from nanoparticles to thin
FIB-prepared lamellae.
fei.com.
NPXY60-258 and NPXY60Z20-257
nanopositioners
from nPoint Inc., Middletown, Wis., are piezo driven, flex-
ure guided stages, designed for high speed and
nanometer precision. With a position noise of 0.4 nm in
X
and
Y
axis and 0.2 nm in the
Z
, both stages are accu-
rate enough for advanced applications. Both stages also
have a travel of 60 µm in both the
X
and
Y
axis and there
is an optional
Z
with 20 µm stroke. The aperture (30 mm
in diameter), creates a great deal of flexibility for incor-
poration in optics and nanotechnology systems. A res-
onant frequency of 750Hz in
XY
and 2000 Hz in
Z
allows
for fast scanning and settling times less than 5 ms. Both
stages are designed to be UHV compatible and have
non-magnetic properties, allowing researchers to test
under specialized conditions.
npoint.com.
Moog Inc., East Aurora, N.Y., extended its range of vari-
able-displacement
radial piston pumps,
with RKP 250
for displacements up to 250 cmH per revolution. It is ca-
pable of delivering continuous pressures up to 350 bar
(5000 psi). For machine applications where even higher
displacements are required, the pump
can be configured in a double-
pump arrangement with full
torque available across all dis-
placements up to 500 cmH and
it provides highly dynamic con-
trol of hydraulic flow and
pressure. Designed to be
used in open-circuit sys-
tems, its large suction
port and flow-optimized
suction path ensure robust suction behavior, a high speed
limit, and low noise emission. RKP 250 has a maximum
speed of 1800 rpm at an inlet pressure of 0.8 bar absolute,
enabling it to operate in machines at high altitudes with-
out the need for a pre-load pump.
moog.com.