SENSOR-MOISTURE METER Russian patent published in 2006 - IPC G01N9/36 

FIELD: the invention refers to measuring technique and may be used for example in industry, medicine, agriculture for definition of humidity of grain in a flow at its drying.

SUBSTANCE: a sensor-moisture meter for a drain drying machine has two parallel metallic plates 1 forming a condenser and a measuring block transforming values of condenser capacities into an analog signal according to the specified grain culture. The metallic plates 1 provided with dielectric columns 2 fastening it to the body of the grain drying machine in the grain flow subjected to drying with the aid of a cover 3 to the body 4 which in its turn is fixed to a flange 6 with a washer. At that the values of grain humidity are defined in accordance with the meaning of the analog signal of the sensor-moisture meter according to the formula: V_i = K (W_I - W_MIN), where V_i - a current value of the analog signal, B; K - a coefficient of transferring humidity into an analog signal, B/%; W_I - a current value of humidity of a measured culture, %; W_MIN -a minimal value of humidity of a measured culture, %. The sensor- moisture meter is characterized with correlation of the width of the "B" flow of grain subjected to drying to the width of the " b" coverage of the flow of grain with the metallic plates 1 equal for example , B/b= 10/1.

EFFECT: increases reliability characteristics of a sensor-moisture meter and provides possibility of using it in a grain flow and also increases accuracy of measuring humidity in a grain flow.

1 cl, 6 dwg