摘要
针对冻土样土的孔隙水压测试模型,为能够连续测量样土正、负压力变换的孔隙水压,提出一种电阻应变式孔隙水压传感器。通过对传感器的相关理论分析和计算,选取合适的结构尺寸,以满足传感器线性度、灵敏度要求。最后,对传感器进行标定实验,验证结构的合理性。
In order to measure the pore pressure, transforming between positive and negative, of frozen soil sample continuously, this paper proposes a kind of resistance strain type pore pressure sensor for the pore pressure measure model. The related theory analysis and calculation decide the appropriate size of structure to meet the requirement of linearity and sensitivity. Finally, the sensor was demarcated by experiment to validate the rationality of the structure.
出处
《中国仪器仪表》
2012年第12期63-65,共3页
China Instrumentation
关键词
孔隙水压传感器
电阻应变式传感器正负压
液体引压
Pore pressure sensor Resistor strain sensor Positive and negative pressure Liquid leading pressure
