Evaluation Engineering - 21

choose from two, four, or six input channels and a thermal printer as an option,"
he said. "These instruments are capable
of measuring signals from small sensors
to large electrical systems and analyzing
single- or three-phase power networks."
In addition, B&K Precision recently
released its DAS1700 high-speed dataacquisition system. "This instrument features four types of measurement boards
that can be installed in the base unit in
any combination of up to three boards or
up to six boards with an optional expansion," said Pederson. "These boards include
a universal input with a maximum voltage
of up to 500 V and six channels, a highvoltage board for up to 1,000 V and six
channels, a strain-gauge board with six
channels, and a multiplexed board with
12 channels. The sampling rate is 1 µs in
all memory modes, with a 14-bit resolution for universal and high-voltage boards
or 16-bit resolution for multiplexed and
strain-gauge boards." He added that options include CAN and LIN inputs and a
2-TB SSD.
Pederson added that B&K Precision offers software tools for remote setup and
control as well as post-acquisition analysis. "Data can be displayed in real-time
and displayed in a numerical or graphical
format," he said.
Keysight offers data-acquisition products including the 3-slot, mid-range
DAQ970 Series, which comes with flexible
interfaces and a range of plug-in modules,
according to Bernard Ang, product marketing. "The DAQ970 Series now comes
with a new solid-state switching multiplexer to scan up to 450 channels per second and a new four-channel simultaneous
digitizer module that allows sample signals up to 800 kS/s per channel," he said.
Ang added that Keysight's larger-scale,
8-slot 34980A data-acquisition system
provides a scan rate of up to 1,000 channels per second and a choice of mix-andmatch plug-in modules. "This standalone
mainframe offers fast time to insight,
measuring multiple signal types and sensors," he said. "You can easily configure
and run, with no programming."
Keysight also offers PXI and USB products. The industry-standard modular
M9000 PXI Series provides the flexibility,

Keysight Technologies DAQ970A and DAQ973A-modules.
Copyright Keysight Technologies. Reproduced with Permission

compatibility, and performance required
for demanding applications, Ang said,
while the U2000 USB Series offers the flexibility to be used as standalone products,
or modules can be plugged into a chassis
to make synchronized measurements.
Ang also commented on software.
"Keysight's Pathwave BenchVue dataacquisition software helps to control
our DAQ970 Series, U2000 USB Series,
and 34980A data acquisition systems remotely," he said. "This software runs on a
PC and can, therefore, take advantage of
the resources of a PC. It can configure and
control multiple DAQ systems and other
types of instruments together, synchronize data capture, stream data into PC
storage as the DAQ system captures data,
and provide test automation, without the
need for programming. Everything can
be completed through a point-and-click
graphical user interface. It can display
trend charts, time-domain charts, frequency domain charts, bar charts, histograms, and more, for data analysis work."

According to Kristoffer Iversen, senior product marketing manager, dataacquisition lead; Derek Burrows, product
marketing manager, data acquisition; and
Rebecca Bassett, product marketing manager, systems and data management, all
at National Instruments, "DAQ systems
are composed of two elements, namely
software and hardware. FlexLogger application software supports CompactDAQ,
FieldDAQ, and PXI DAQ boards so users
can take advantage of our modular dataacquisition products to set up tests and
start logging data in minutes without any
programming required."
Iversen, Burrows, and Bassett said
that NI also provides application and
test operations software to accelerate
data search, access, and normalization
for root-cause analysis. "DIAdem is a
robust application software designed for
engineering data inspection and analysis,"
they said. "It's purpose-built for test, and
ships with commonly used engineering
analysis functions and visualization tools
National Instruments
FlexLogger datalogging project
with CompactDAQ hardware.

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Evaluation Engineering

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