地下水pH值、电导率和浊度实时监测仪器

Real-time Meter Measuring pH,Conductivity and Turbidity for Groundwater

开发了用于地震前兆研究的地下水pH值、电导率和混浊度的智能在线监测仪器。介绍了仪器的软硬件设计,包括采集电路、前置放大电路、传感器及针对在线测量要求的长期稳定性和免维护性的设计,其中浊度传感器采用表面散射的原理设计,光源采用激光。仪器具有人机交互、数据存储、参数校准、串口通讯以及自动在线测量等功能,达到要求的各项指标,并在地震台站长期稳定运行。

An intelligent meter that measures pH,conductivity and turbidity has been designed for earthquake prediction research.Gave the design mechanism of the pH,conductivity and turbidity meter, focuses on the data acquisition circuit,pre-amplifying circuit,turbidity sensor,features of long-term stability and maintenance-free.The design of turbidity sensor is based on the theory of surface scattering and uses laser as light source.The meter has functions of man-machine conversation,data storage,serial communication,the design of parameter calibration and on-line measurement.The main rating and specifications were achieved.The instrument has run stably at an earthquake station for 3 months.