MICROCONTROLLER MEASUREMENT CONVERTER WITH BALANCING OF RESISTIVE WHEATSTONE BY METHOD OF WIDTH-PULSE MODULATION Russian patent published in 2014 - IPC G01R27/26 

FIELD: measurement equipment.

SUBSTANCE: invention relates to measurement equipment, in particular, to devices for measurement of active resistance, and may be used in facilities for measurement and control of non-electric values by resistive sensors. A microcontroller measuring converter with balancing of a resistive Wheatstone bridge by the method of width-pulse modulation comprises the first resistor 1, the second resistor 2 (which is also the resistive sensor), the third resistor 3, the fourth resistor 4, the fifth resistor 5, the sixth resistor 6, an RC-filter 7 and a microcontroller 8. Resistors 1 and 2 by the first outputs are connected to the inlet of the RC-filter 7, the output of which is connected to the first AK input of the microcontroller 8, the first output of the resistor 5 is connected to the second output of the resistor 2 and to the first output of the resistor 6, the second output of the resistor 5 is connected to the WPM output of the microcontroller 8, the first outputs of the resistors 3 and 4 are connected to the second AK input of the microcontroller 8, the second outputs of the resistors 1, 3, 4 and 6 are connected accordingly to the first, second, third and fourth discrete outputs of the microcontroller 8.

EFFECT: higher accuracy of a microcontroller measuring converter.

2 cl, 1 dwg