基于LPC2132桥梁挠度传感器设计与实现

Design and Realization of Bridge Deflection Sensor Based on LPC2132

挠度是反映桥梁健康状况的最重要指标。本文介绍的基于ARM CPU LPC2132的光电液位挠度传感器具有成本低,自动性能好、精度高、非接触、能连续在线监测等优点。这里重点介绍它的硬件构成、原理和性能分析。最后以山西高速公路小沟特大桥的安全监测系统为实例来具体介绍本传感器的使用情况。

Deflection is indispensable parameters which can indicate the safety status of bridges. The photoelectricity and liquid level deflection sensors （PLLD） based on ARM CPU LPC2132 introduced here are cheaper and of better-automaticity and higher precision and can work on-line continuously without contact. This paper will show the hardware, performance and theory of our new sensor in detail. In the end, a concrete application instance in XiaoGou bridge of ShanXi province will be given.