MICROCONTROLLER METERING TRANSDUCER OF RESISTANCE OF RESISTOR SENSORS INTO BINARY CODE WITH SELF-DIAGNOSTICS FUNCTION Russian patent published in 2019 - IPC G01R27/02 G01N27/02 

FIELD: measuring equipment.

SUBSTANCE: invention relates to measurement equipment, in particular, to devices for measurement of active resistance, and can be used in facilities for measurement of non-electrical values by resistive sensors. Microcontroller measuring transducer of resistance of resistive sensors into binary code with self-diagnostics function contains first resistor 1 (same resistive sensor), second resistor 2, third resistor 3, fourth resistor 4, first RC-filter 5, second RC-filter 6, microcontroller 7 and fifth resistor 8. Resistors 2, 3, 4 and 8 are reference, and in general case their resistances should be equal. Resistors 1, 2, 3, 4 and 8 are connected to first, second, third, fourth and fifth PWM outputs of microcontroller 7 (PWMs not shown) by their first outputs. Resistors 1, 2 and 8 are connected to the input of first RC-filter 5 by the second leads, the output of which is connected to the first input of the analogue comparator (AC) of microcontroller 7 (AC not shown), resistors 3 and 4 are connected by their second outputs to the input of second RC-filter 6, the output of which is connected to the second input of AC microcontroller 7.

EFFECT: technical result, which can be achieved using the proposed invention, is to increase accuracy.

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