MOISTURE METRE-FLOWMETRE FOR GRAIN STREAM Russian patent published in 2009 - IPC G01N27/22 

FIELD: physics.

SUBSTANCE: capacitive transducer has potential and main measuring electrodes along the motion path of the grain stream. The main and complementary outputs of the high-frequency generator are connected to potential electrodes and a current metre is connected to the measuring electrode. An additional measuring electrode is placed last on the motion path of the grain stream. A source of water pulses is linked with the capacitive transducer and is placed in front of the additional measuring electrode. An additional current metre is connected to the additional measuring electrode. The output of the additional current metre is connected to the input of a current comparator. The output of a standby monostable multivibrator is connected to the source of water pulses, and the trigger input - to the output of the current comparator. The input of an electronic frequency metre is connected to the output of the standby monostable multivibrator.

EFFECT: wider functional capabilities, since there is not only control of the moisture of the grain stream, but flow of the controlled substance as well.

2 cl, 4 dwg