FIELD: measuring equipment.
SUBSTANCE: invention relates to means for working fluid pressure measurement. In present invention disclosed method of checking monocrystalline pressure sensor condition, as well as working fluid pressure measurement system, implementing said method. Method involves presence of monocrystalline pressure sensor with piezoelectric element, which has at least one electric characteristic changing depending on external pressure. Pressure sensor is equipped with at least one resistive element in form of temperature sensor. Current is supplied through resistive element for heating of pressure sensor. Control is performed over at least one output of pressure sensor to determine its reaction to current heating. Output signal of checking is supplied based on reaction.
EFFECT: creation of improved system of diagnostics and checking monocrystalline pressure sensors and will increase reliability and improves quality of equipment servicing using such sensors.
28 cl, 5 dwg
