NI devices enable dynamic signal acquisition
National Instruments has announced the NI PXIe-449x devices, a range of flexible high-channel-count dynamic signal acquisition (DSA) modules.
The modules provide AC/DC coupling both for sensor measurements with a microphone or accelerometer and voltage measurements from a tachometer or device under test, making it possible for engineers to use a single device for all their sound and vibration acquisition needs.
The NI PXIe-449x modules feature a choice of 8 or 16 channels with 24-bit analogue-to-digital converters (ADCs) per channel and 113dB dynamic range.
The large dynamic range minimises the noise floor, making it easy to detect even the smallest vibration and acoustic signals.
The NI PXIe-449x modules also provide software-selectable gains that help engineers configure gain on each channel for the best signal-to-noise ratio possible.
With the NI PXIe-449x modules, engineers can easily synchronise physical measurements of any type and correlate real-time events.
The modules synchronise with the NI SC Express range of data-acquisition modules, which provide signal conditioning and connectivity for temperature, strain and high-voltage acquisition.
The ability to combine the modules makes the PXI platform suitable for structural test, design validation and other dynamic tests.
The NI PXIe-449x devices are also compatible with the NI Sound and Vibration Measurement Suite, an interactive software for quickly acquiring, analysing and logging acoustic and vibration measurements.
The suite includes the NI Sound and Vibration Assistant and NI Labview analysis VIs.
High-level, ready-to-run applications for performing nondestructive tests are included.
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