Lintroduce on The Capacitor Sensors Method for a Moisture Measueing Instrument on Line in Grains

In this paper,a grain moisture content—determination model of capacitor sensor was established theoretically。The paper describes the structure and basic principle of a moisture measuring instrument on line for grain.The paper also analyses the total design scheme.The temperature of drying grain controlling system and the moisture of drying grain measuring system,This two parts are controlled by computer and them can communicate each other,exchange data,convey control information and realize efficient measurement on line.