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A Simple Instrumentation System for Large Structure Vibration Monitoring

Author(s): Didik R. Santoso

ISSN 1693-6930

Volume: 08;
Issue: 3;
Start page: 265;
Date: 2010;
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Keywords: Instrumentation system | MEMS accelerometer | Microcontroller | Distributed system.

Traditional instrumentation systems used for monitoring vibration of large-scale infrastructure building such as bridges, railway, and others structural building, generally have a complex design. Makes it simple would be very useful both in terms of low-cost and easy maintenance. This paper describes how to develop the instrumentation system. The system is built based on distributed network, with field bus topology, using single-master multi-slave architecture. Master is a control unit, built based on a PC equipped with RS-485 interface. Slave is a sensing unit; each slave was built by integrating a 3-axis vibration sensor with a microcontroller based data acquisition system. Vibration sensor is designed using the main components of a MEMS accelerometer. While the software is developed for two functions: as a control system hardware and data processing. To verify performance of the developed instrumentation system, several laboratory tests have been performed. The result shows that the system has good performance.
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