September 19, 2013. ADLINK Technology Inc. announced the release of its new PXI Express dynamic signal acquisition module, the PXIe-9529, featuring up to eight 24-bit analog input channels simultaneously sampling at 192 kS/s and a 108 dB dynamic range. The company demonstrated the module at Autotestcon.
The PXIe-9529 features a vibration-optimized lower AC cutoff frequency of 0.3 Hz, and all input channels incorporate 4-mA bias current for integrated electronic piezoelectric (IEPE) signal conditioning for accelerometers and microphones, positioning the module for machine condition monitoring; noise, vibration and harshness (NVH); and phased-array data-acquisition applications.
“The increasing implementation of modular instrumentation in sound and vibration testing provides benefits like enhanced accuracy and expandability,” said Catherine Wu, senior product director of ADLINK's Measurement and Automation Product Segment. “Our PXIe-9529’s 8-channel design provides easy expansion up to 136 channels in a single 18-slot PXI Express chassis while still maintaining tight timing and synchronization between channels, presenting a cost-optimized solution for high channel count applications like phased array data acquisition.”
When performing high-channel-count data acquisition, the PXIe-9529’s built-in phase-locked loop (PLL) allows multiple modules to lock to an external reference-timing signal, such that each module can perform measurements simultaneously. In addition, the PXI star trigger ensures synchronization between modules with less than 1 ns of skew, allowing 0.01° phase system mismatch for a 1-kHz signal between any two channels across devices, with the subsequent variety of implementation enabling simultaneous precision multi-channel sampling.
The PXIe-9529 provides flexible input ranges up to ±10 V or ±1 V, software-selectable AC or DC coupling, and both differential and pseudo-differential input configuration, with up to ± 42.4-V over-voltage protection for positive and negative inputs in both configurations.