本文介绍了糖厂中末效蒸发罐的糖浆锤度和中和管道内pH值的自动检测控制系统。该系统中用一定温度下的压差作为糖浆锤度的间接指标,选用锑-甘汞电极测量电极组。通过实验解决了中和pH值调节系统中存在的技术问题。 This article describes the sugar factory in the end of evaporation syrup brix and neutralization pipeline pH value of the automatic detection control system. The system uses a certain temperature differential pressure as an indirect indicator of the degree of syrup briquette, use antimony - calomel electrode electrode group measurement. The technical problems existing in the neutralization pH adjusting system are solved experimentally.