孔隙水压力传感器动态特性模型,设计与试验

本文对动态孔隙水压力传感器的设计问题进行了专门研究。内容包括:(a)根据泊稷叶公式建立了滤水系统的动态特性模型;(b)由该模型对典型被测压力信号的响应误差提出了设计判据;(c)孔隙水压力传感器的设计与制作;(d)在激波压力作用下,模型的理论响应与传感器的实测响应作了检验对比。此外,还简单介绍了传感器在现场的应用情况。

Dynamical Characteristic Model, Design and Test on Pore-water-pressure Transducer

The design of a dynamical pore-water-pressure transaucer is specially studied in this paper It contains (a) the dynamical characteristic model derived on the filter system of the transducer based on poiseuille formula; (b) designing criterion obtained according to the suggested error that the model responds on the typical sign of the measured pressure; (c) the design and construction of the transducer based on the criterion; (d) the theoretical response of the model compared with that of the developed transducer under the shock wave load. Furthermore, the application is presented on the transducers used to measure the pore-water-pressure and soil stress on site.