Date: 06/01/2011

NI's new PXI express module features AC/DC coupling for sound and noise measurements

National Instruments has unveiled NI PXIe-449x, a high-channel-count dynamic signal acquisition (DSA) modules featuring 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.

"We need scalable data acquisition hardware and software that yields accurate data efficiently," said Michael James, vice president at Blue Ridge Research and Consulting. "Leveraging LabVIEW with the NI PXIe-449x DSA module fulfilled our needs by enabling us to customize our applications and perform real-time monitoring."

The NI PXIe-449x modules feature a choice of 8 or 16 channels with 24-bit analog-to-digital converters (ADCs) per channel and 113 dB dynamic range to minimize noise floor. 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.

NI says With the NI PXIe-449x modules, engineers can easily synchronize physical measurements of any type and correlate real-time events.

Price: $7,999

Editorial Product Rating: ** (Average Plus)