Evaluation Engineering - 8

DATA ACQUISITION

various sensor technologies, measurement and control hardware, software for
management, analysis and reporting of
testing results, and application knowledge
and support for the full solution."
Nguyen, DTS: "Small, modular, low mass,
low power. Instrumentation that can be
embedded on or in a test article without
altering test dynamics. By the time that
customers get to DTS, they have already
made big investments (time, money, engineering, manufacturing, simulation testing) to get a test article to prove out in real
life. DTS is the insurance to validate their
hard work and investment."
Chamberlin & Cole, Silicon Designs: "Over
the years, Silicon Designs has found that
its customers favor streamlined and simplified test setups. They prefer a simple,
compact, accurate, cost-effective data
acquisition system-preferably one that
is also lightweight and portable. That ideal
system would provide full data recording
and playback functionality. It would not
require the use of an additional power
supply. Most importantly, Silicon Designs
customers also want a data acquisition
system of which they can be 100% assured
will offer seamless direct compatibility
with any of the company's own 8-32 VDC
powered MEMS capacitive accelerometer
modules. Due to the steady increase in
customer requests for a simple data acquisition system with these specific criteria-expressly for use with Silicon Designs
accelerometers and within smaller channel count applications-the company has
recently introduced its own G-Logger
DAQ series, in two unique models."
Rovini, Spectrum Instrumentation: "High
channel counts and a working synchronization concept for multiple devices
like digitizers and arbitrary waveform
generators."
Johnson, Digilent: "Along with higher performance (speed, resolution), there is a
need for smaller devices that can easily be
embedded into mobile and other spaceconstrained applications, giving users
insight into the health and environment
of systems in real-time."

8

EVALUATION ENGINEERING JUNE 2019

Pederson, B&K Precision: "Deeper
memor y, and greater
accuracy, and resolution in a smaller, more
cost-effective unit. B&K
Precision is currently addressing these requests
and will continue to advance
with customer requirements
by bringing to market products
with expanded measurements."
Ide, Hioki USA: "Isolated input for all
channels, simultaneous sampling of all
channels, high resolution, high precision,
and high-speed data transfer."
Ang, Keysight: "Here are just some of the
key requests from our customers:
* Data logging over a long period for
device reliability test
* Robust and rugged data acquisition
systems with plenty of channels for
simultaneous measurements
* Reliable thermal profiling and acoustical testing of electrical appliances
* Integrated signal conditioning and
synchronous sampling across multiple sensors
* Real-time data enabling immediate
parameters adjustment for testing
* Rapid control prototyping, simulations, and production testing.
Anderson, Measurement Computing:
"In high-cost systems, power is the key
as more high-tech features are combined
in product designs. A good example of this
is the automotive and aerospace market
where multiple technologies
are converging such as EV
and autonomous vehicle.
These systems need to
have a high degree of control from a single vendor
to offer the spectrum of
solutions needed to keep
up. In lower-cost systems,
in which MCC specializes,
customers have been asking for ways to integrate
in open systems that
support products and
technologies from many vendors. Linux
systems are gaining in popularity because

Digilent's OpenLogger
DAQ device is a small but
powerful and WiFi-enabled
multifunction data acquisition
device and datalogger.

of the large amount of open-source tools
to integrate disparate technology from
multiple vendors."
Chitalwala, Yokogawa: "High channel
count, faster sampling rates, isolated
measurements, and built-in analysis.
Specifically, there has been an increased
need for isolated high-speed analog measurements for power electronic circuitry."

Now on the market
What new DAQ solutions have vendors
launched lately?
Johnson, Digilent: "We just released our
OpenLogger DAQ device-a very small
but powerful and WiFi-enabled multifunction data acquisition device and
datalogger. This product ships with a free
browser-based tool (Waveforms Live) for
setup, configuration, and real-time monitoring. Data can either be logged locally
Launched this past April, B&K Precision's
model DAS220-BAT is a lightweight and portable
recorder.
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Evaluation Engineering

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