MICROCONTROLLER MEASURING TRANSDUCER FOR WIRELESS MONITORING OF ELECTRICAL RESISTANCE OF SOIL USING WENNER METHOD Russian patent published in 2024 - IPC G01R27/26 

FIELD: measuring equipment.

SUBSTANCE: microcontroller measuring transducer for wireless monitoring of soil resistance using Wenner method comprises microcontroller 1, four RC-filters 2–5, two resistors 6 and 7, radio module 8, four electrodes 9–12, eight digital temperature sensors 13–20. First leads of resistors 6 and 7 are connected to outputs of the first and second PWM, respectively, built into microcontroller 1, second leads of resistors 6 and 7 are connected to inputs of first 2 and fourth 5 RC-filters, respectively, and are also connected to electrodes of first 9 and fourth 12, respectively. Second 10 and third 11 electrodes are connected to inputs of second 3 and third 4 RC-filters, respectively. Outputs of all four RC-filters are connected to corresponding inputs of multichannel ADC built in microcontroller 1. Digital temperature sensors 13–20 are connected to microcontroller 1 through interface bus 1-Wire, radio module 8 is connected to microcontroller 1 through serial digital interface.

EFFECT: broader functional capabilities of the device.

1 cl, 1 dwg