Prairie Du Chien Bridge

Wireless Experimental Vibration Analysis of the Mississippi River over Prairie Du Chien
Sponsor: Teng & Associates

UNC Charlotte will be installing a wireless vibration sensor network on span 5 of the Mississippi River over Prairie Du Chien Bridge on USH 18 E/W.  The structure is a steel tied-arch bridge with a span length of 462 ft.  Details on the 2nd generation wireless sensing platform, instrumentation array, and preliminary results will be posted following anticipated testing in June 2011.

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Custom Wireless Platform

– 8 Simultaneously Sampled Differential Analog Inputs per Node

– 16-bit Delta-Sigma ADC with on-chip Digital FIR anti-aliasing filter (90% usable  Nyquist bandwidth and 100dB stopband attenuation)

– TI CC2530 IEEE802.15.4 System-on-Chip 2.4GHz RF Transceiver with 32MHz microcontroller

– 20dBm Power Amplifier and 6dBm Low Noise Amplifier for Range Extension

– Optional Serial UART interface