This paper presents a rapid method for detecting the salt content in pickled mustard tuber based on multiple electrodes. Firstly, a hardware system consisting of ion selective electrodes, temperature sensor, reference electrode, signal processing module, single-chip module etc. was designed and fabricated; secondly, the predication models for sodium and chloride ions and data sampling and processing program software were established; finally, this system was used to measure salt contents in three kinds of F...