PROBE MEASURING DIFFERENTIAL AND GAUGE PRESSURE OF GAS OR LIQUID IN PIPE-LINE Russian patent published in 2002 - IPC

FIELD: measurement technology. SUBSTANCE: probe measuring differential and gauge pressure of gas or liquid in pipe-line includes cylindrical rod with holes to tap impact and static pressures and with flange for attachment to pipe-line, transmitters of differential and gauge pressures. Cylindrical rod also has chambers of impact and static pressures. Impact pressure chamber is located on end of rod, static pressure chamber is positioned on side of flange, they house correspondingly transmitters of differential and gauge pressures. Transmitter of differential pressure is connected by conduit to static pressure chamber and transmitter of gauge pressure is linked to atmosphere. Cylindrical rod can have two intake holes to tap static pressure which can be located in symmetry with plane passing through longitudinal axes of cylindrical rod and holes to tap impact pressure and can be spaced apart through angle of ±32^° over circumference of section of rod. EFFECT: increased measurement accuracy, reduced mass and size characteristics and cost of probe. 2 cl, 1 dwg