动态模型试验孔隙水压测量系统  

Pore-water Pressure Measuring System for Dynamic Model Tests

作　　者：孙汝建[1] 

机构地区：[1]南京水利科学研究院,江苏南京210024

出　　处：《仪表技术与传感器》2003年第11期28-29,35,共3页Instrument Technique and Sensor

摘　　要：介绍了一种土工动态模型试验的数据采集系统。仪器采用AT89C51单片机作为控制器,主要包括小型高精度孔隙水压力传感器以及由CS5524A/D转换器组成的多通道数据采集装置。要求在模型试验槽内水压变化时,能连续采集试验槽内各部分动态孔隙水压力变化。该系统结构简单、集成度高,自投入运行后,稳定可靠,取得了十分良好的应用效果。A multichannel porewater pressure data acquisition system for dynamic geotechnical model tests is introduced.Adopting AT89C51 single chip microprocessor as its controller,the system consists of a small high pecision porewater pressure sensor and CS5524 A/D converter.The system can continuously get dynamic variation of porewater pressure in the relevant positions in the model tank.The structure is simple and high integration,the system has already run in site for a long time reliably,and has achieved an excellent effect in practice.

关 键 词：动态模型 孔隙水压力 传感器 数据采集 土工试验 单片机 

分 类 号：TU41[建筑科学—岩土工程] TP274[建筑科学—土工工程]