| 摘要 |
FIELD: physics. ^ SUBSTANCE: in measurements, controller is used to control valves arranged on pulse tubes of transducers 4, 7 of pressure difference at contraction devices 1,9 in first feed pipeline 2 and second discharge pipeline 10, and transducers 3, 8 of heat carrier pressure in said pipelines. Said valves are used to vary cyclically hydraulic (pneumatic) circuits of the first and second pressure transducers communicated with 1st and 2nd pipelines, and hydraulic (pneumatic) circuits of the first and second pressure difference transducers communicated with 1st and 2nd contraction devices so that number of measurements made on first pipeline equals that on second pipeline. Medium temperature in 1st and 2nd pipelines are measured by temperature transducers 5, 6. ^ EFFECT: reduced relative error for preset time interval. ^ 7 dwg |
