National Instruments Introduces PXI
Express Data Acquisition Module for High Speed, Bridge-Based
Measurements
New Module Increases Accuracy and Bandwidth for
High-Channel-Count Strain, Load, and Pressure Measurement
Systems
NEWS RELEASE Sept. 14, 2010 National Instruments today
announced the NI PXIe-4331, the latest in the NI
SC Express family of high-performance data acquisition
(DAQ) modules with built-in signal conditioning. The DAQ device is
a simultaneous high-speed bridge input module that provides signal
conditioning for dynamic measurements from strain, pressure, torque
and load sensors. The NI PXIe-4331
increases the speed of bridge-based measurements and, with PXI
Express, provides 250 MB/s of dedicated bandwidth per
device to give engineers the freedom to increase channel count
without compromising sampling rates or data throughput.
The NI PXIe-4331 features eight channels with 24-bit
analog-to-digital converters (ADCs) per channel and 102.4 kS/s per
channel sampling rate. To improve accuracy and reject noise, the
module offers antialiasing and digital filters per channel.
Additionally, the module includes an independent programmable 0.625
to 10 V excitation voltage on each channel for flexibility and
fault protection. The NI PXIe-4331 also provides remote sensing,
internal bridge completion and shunt calibration options per
channel. The 8-channel bridge input module can scale to a
136-channel system in a single chassis and thousands of channels
when synchronizing across multiple chassis. The simultaneous
sampling, high sample rate and channel synchronization features
make the module ideal for structural
test applications such as fatigue and impact test, design
validation and other dynamic tests. These applications are common
in industries such as automotive, aerospace, defense and renewable
energy.
The NI PXIe-4331 includes NI-DAQmx driver software with support for
multidevice tasks, making it possible for engineers to easily
synchronize multiple modules. Engineers can combine the NI
PXIe-4331 module with a variety of NI hardware including other SC
Express modules, NI X Series DAQ devices, dynamic signal
acquisition products and more than 1,500 types of I/O available on
the PXI platform. The NI PXIe-4331 also integrates with NI software
including NI
LabVIEW, the LabVIEW Real-Time Module and NI
DIAdem.
The SC Express family of modules delivers increased accuracy,
high-data throughput and best-in-class synchronization for
measuring strain gages, bridge-based transducers, thermocouples and
high-voltage analog inputs. With a smaller footprint, simplified
cable management and software features for automatic
synchronization, SC Express makes it easy for engineers to set up
and program high-channel-count sensor measurement systems on a
single platform.
Readers can visit www.ni.com/lp/sc-express to learn more
about achieving higher measurement performance with the NI
PXIe-4331 module and the SC Express family.
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