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Driver Software
DAQ and Signal Conditioning
LabVIEW and NI-DAQ
Using NI-DAQ, you can easily acquire, analyze, and present your
measurements in LabVIEW. Figure 4 shows the block diagram of
a typical data acquisition in LabVIEW. With the first set of
NI-DAQ VIs, you configure your acquisition and read data from
your sensor. Because this VI uses a named channel, most of the
signal conditioning and DAQ hardware configuration is handled
automatically. Next, you route the waveform from the read VI to
the peak detect measurement VI. The waveform data type carries
the scaled sensor and time data to the measurement function.
Finally, the measurement data can be displayed in an indicator
and/or a waveform graph that automatically has the correct time
and engineering units.
Measurement Examples
The NI Developer Zone (ni.com/zone) has more than 2,400
LabVIEW, C, and Visual Basic source code examples written by NI
development and application engineers, system integrators, and
customers. These free measurement examples cover basic
functional examples such as analog and digital I/O, counter/timer
operations, and signal processing and analysis. Plus, you can
search on applications ranging from temperature and strain to
sound and vibration to machine vision and motion control. With
NI’s increasing community of virtual instrumentation developers,
the number of examples continues to grow quickly.
Other Operating Systems
NI-DAQ is built on proven, industry-standard Windows and Mac
OS technologies. If your application requires the use of another
operating system, you have several options. For information on an
open-source, third-party Linux driver, please visit ni.com/linux. For
other OSs, such as WinCE and QNX, please see the
Measurement Hardware DDK on the following page.
Driver Software for Data Acquisition
and Signal Conditioning
Figure 3. Measurement & Automation Explorer makes naming, scaling,
and accessing I/O channels easy.
Figure 2. Quickly test your devices with the NI-DAQ test panels.
Figure 4. Acquire, analyze, and present with NI-DAQ and LabVIEW.
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