文章介绍了流动试验中酸碱性及电导率测试装置设计原理及在试验过程中的应用。该装置最大的优点是能测量试验过程的瞬时值 ,还可以设定时间测量 ,适当改进后可以测试液体的瞬时离子浓度。该装置成本低 ,易安装 ,是一种提高工效 ,减轻劳动强度的实用性装置 This paper introduces the design principle of the acid-base and conductivity test device in the flow test and its application in the test process. The biggest advantage of the device is that it can measure the instantaneous value of the test process, you can also set the time measurement, the appropriate improvement can test the instantaneous ion concentration of the liquid. The device is low in cost and easy to install, and is a practical device for improving work efficiency and reducing labor intensity