ELEC11.APR–Gould–wy
Digital scopes provide deep memory on all channels
Two digital storage oscilloscopes, Models 4162 and 4164, combine 100
Msamples/s digitizing speed with 50 Kpoints of memory per channel for
applications where high- and low-speed events must be captured
simultaneously and time resolution is critical. The extended memory depth
enables users to examine fine detail within a stored waveform, while
looking at long-term trends at the same time. Thus, the new DSOs are ideal
for measurements on mechanical and electrical systems where relatively
slow-moving events need to be examined alongside rapidly changing
electronic control signals. The deep memory also allows both scopes to
baby-sit effectively, looking for random or intermittent signals. The
larger memory lessens the chance of missing events, such as neural pulses
in biomedical applications or fatigue failures in mechanical stress
testing. Furthermore, the deep, 50-Kbyte, memory improves time resolution
because a faster sample rate can be used before the data are processed and
displayed. For example, the scopes can acquire a complete cycle of ac line
power with 0.5-microsecond resolution, including all glitches as fast as
10 ns. The memory can be shortened to 5 Kpoints or 500 points for
applications where the highest response speed is required or for tests on
repetitive signals. A shorter memory length means that data can be
transferred to a computer more rapidly, and more reference memories can be
provided for backing up acquired signals. The 4164 and 4162 provide 150 MHz
equivalent real-time bandwidth, 8-bit resolution at all input
sensitivities, full programmability, on-screen cursor-based measurement
functions, and built-in hard-copy capabilities. The 4164 is a full
four-channel instrument, while on the 4162 two of the channels have been
optimized for electronic control signal acquisition. A variety of display
modes, including conventional Y/T, X/Y, roll, persisted, and interpolated,
allow acquisition data to be presented in the most meaningful form to the
user. Both scopes incorporate a variable zoom feature that provides 1,
000:1 trace expansion for detailed examination for detailed examination of
trace data. The user can select a combination of normal and zoomed traces
allowing detailed observation of the magnified trace in relationship with
the overview. Other features include automatic setup, pre-trigger from 0%
to 100%, and limits testing. IEEE-488 and RS-423 interfaces are standard,
while a built-in thermal printer and four-color plotter are optional.
(Model 4162, $5,490; Model 4164, $6,990–4 weeks ARO.) Gould
Electronics/T&M Group Valley View, OH Doug Maclennan 216-328-7313 EEM
FILE 2900
ELECTRO BOOTH #2218
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