FIELD: machine building.
SUBSTANCE: here is disclosed measuring system for measurement of density of medium flowing in process main where density changes along imaginary axis of flow relative to thermo-dynamic state, in particular, of at least compressed medium. The system contains at least one temperature sensor installed at point of temperature measurement (Mϑ) primarily reacting to local temperature ϑ of medium passing by. Also, the temperature sensor generates at least one measuring signal (xϑ) of temperature subjected to effect of local temperature of measured medium. Further, the measuring system includes at least one pressure gauge installed in point (Mp) of pressure measurement primarily reacting to local, in particular, static pressure p of medium flowing by. The pressure gauge generates at least one pressure measuring signal (xp) influenced with local pressure p in measured medium. Additionally, the measuring system consists of a measuring electron unit at least temporarily connected with at least the temperature sensor and pressure gauge. By means of a measuring signal of temperature and at least measuring signal of pressure the electron unit generates at least temporarily at least one, in particular, digital measured value (Xρ) of density, corresponding to local density ρ at given moment, which flowing medium has at, in particular, stationary virtual point (M'ρ) of density measurement, remote at specified distance along axis of flow from point (Mp) of pressure measurement and/or point (Mϑ) of temperature measurement.
EFFECT: upgraded accuracy of measurement of secondary parameters defined with space-spread recorded parameters of stage, such as pressure and temperature.
49 cl, 1 tbl, 12 dwg
