ARRANGEMENT FOR MEASURING HUMIDITY OF GRANULAR MATERIALS Russian patent published in 2006 - IPC G01N9/36 

FIELD: the invention may be used for automated control of humidity of soil, seeds of grain cultures and other granular materials.

SUBSTANCE: the arrangement for measuring humidity of granular materials has a high frequency T-piece connected with its first branch pipe with the input of a stroboscopic reference arrangement, its synchronizing input is switched to the first output of a synchronizer; another branch pipe of the high frequency T-piece is connected to the output of a generator of outgoing impulses, its launching input is switched to the second output of the synchronizer; the third branch pipe of the high frequency T-piece is connected through a connecting cable with a primary measuring transducer. The output of the stroboscopic reference arrangement is attached to a regulated threshold arrangement whose output is switched to the inputs of the first and the second blocks of detecting impulse fronts; the output of the first detecting block is connected with launching inputs of a timer and a program-time arrangement and the output of the second detecting block - with the input of the initial installation of the program-time arrangement and a stopping input of the timer whose output is connected to a calculating arrangement with an indicator; the output of the generator of outgoing impulses is switched to a peak detector of impulses with memory connected with its output to the first input of a multiplier whose output is connected with the controlling input of the regulated threshold arrangement and the second input is switched to the output of the program-time arrangement.

EFFECT: allows automated measurement and control of humidity of granular materials.

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