PRESSURE MEASURING ARRANGEMENT Russian patent published in 2007 - IPC G01L9/04 

FIELD: the invention refers to measuring technique.

SUBSTANCE: the essence of the invention is in that the pressure measuring arrangement has a resistive-strain pressure converter fulfilled in the shape of Witston's bridge, a temperature-sensitive resistor temperature sensor, an analog-digital converter, a differential amplifier, a micro-controller, a digital-analog converter, a voltage-current converter, a digital interface, a source of reference voltage and a source of power supply. In quality of the thermo-resistive temperature sensor the feeding diagonal of the bridge of the resistive-strain pressure converter is used. The device has additionally introduced a source of power supply, a feeding sworn bridge, a signaling block, a control block, a digital indicator and an analog differential multiplexer. The device is fulfilled according to a scheme allowing execute modes of measuring pressure, calibration, correction of time zero drift and changing values of operating parameters.

EFFECT: increases accuracy of pressure measuring and also expands functional possibilities of the arrangement.

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