1
1 Introduction
The PXIe-69529 is a high-performance 8-CH 24-Bit 204.8 kS/s dynamic signal acquisition
module, specifically designed for applications such as structural health monitoring, noise,
vibration, and harshness (NVH) measurement, and phased array data acquisition.
The PXIe-69529 features 24-bit simultaneous sampling at 204.8 kS/s over 8 channels,
and a 110 dB dynamic range, providing ample power for high-density, high channel count
signal measurement, and vibration-optimized lower AC cutoff frequency of 0.3 Hz. All input
channels incorporate 4 mA bias current for integrated electronic piezoelectric (IEPE) signal
conditioning for accelerometers and microphones.
The PXIe-69529 is auto-calibrated with an onboard reference circuit calibrating offset and
acquiring analog input errors. Following auto-calibration, the calibration constant is stored
in EEPROM, such that these values can be loaded and used as needed by the board. There
is no requirement to calibrate the module manually.
1�1 Features
• PXI Express specification Rev. 1.0 compliant
• 8 simultaneous analog inputs
• 204.8 kS/s maximum sampling rate
• AC or DC input coupling, software selectable
• Support for:
◦ One external digital trigger input
◦ IEPE output on each analog input, software configurable
◦ Auto-calibration
1�2 Applications
•
Structural health monitoring
• Phase array data acquisition
• Noise, vibration, and harshness (NVH) detection
•
Machine status monitoring
