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- W4304014746 abstract "Abstract Since the damage of the bridge structure may cause great disasters, it is necessary to monitor its health status, especially the bridge bearing, the important connecting component of the bridge's upper and lower structures. Nowadays, manual inspection is the main method to get the information of the bridge bearings’ work status. However, occasional damage of bridge bearing may not be detected in time, and sometime the installation position of the bearing makes the manual inspection on bridge bearing difficult and even impossible. Therefore, in order to know the work status of the bridge bearings timely, an intelligent remote monitoring system for the bridge bearing is developed. A 32-channel real-time acquisition system is designed by using an AD7768-1 analog-to-digital converter (ADC) and Xilinx Spartan-6 FPGA for interface stress continuously acquired in the bridge bearing. To assure the good linearity and noise performance of the monitoring system, the data acquisition card is meticulously designed to reduce noise from both hardware and software and realize high-precision acquisition. Through the establishment of the monitoring server, the compressive stress data can be displayed synchronously and the overpressure situation can be alarmed in real-time. The experimental results show that the accuracy of the calibrated sensor is within 1.6%, and the detection error of the acquisition board is less than 200µV. The acquisition system is deemed to have considerable advantages in accuracy and applicability." @default.
- W4304014746 created "2022-10-10" @default.
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- W4304014746 date "2022-10-10" @default.
- W4304014746 modified "2023-10-18" @default.
- W4304014746 title "High Precision and Real-Time Acquisition System for Interface Stress Measurement in Bridge Bearing" @default.
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- W4304014746 doi "https://doi.org/10.21203/rs.3.rs-2118442/v1" @default.
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