(1) the prominent difference between fermentors and other industrial equipment is the high requirements for purebred culture, almost to a very harsh degree. Therefore, the tightness of the fermentor, the high reliability of the operation is a significant feature of the fermentation industry.
(2) modern fermentation industry in order to obtain greater economic benefits, fermentor more tend to large-scale and automated development. In the automation of the fermentation tank, the online detection of the electrode as a parameter such as a pH electrode, a dissolved oxygen electrode, a dissolved CO2 electrode, and the like has been quite mature in foreign countries. Fermentation detection parameters are limited to temperature, pressure, air flow and some of the most conventional parameters.