【摘要】 研究流量测量误差对管道泄漏检测定位系统的精度有决定性影响,以腰轮流量计为例,讨论了流量计动态计量误差产生的原因,首次提出了采用三次样条插值拟合腰轮流量计误差流量曲线,动态修正以腰轮流量计滑流量为主的计量误差,能显著提高管道泄漏检测的灵敏度和泄漏定位精度。更多还原

【Abstract】 Measurement error of flowrate affecting on accuracy of locating system of pipeline leakage is studied, for example of rotary flowmeter the cause of error resulting in dynamic metering is discussed, and first time to present a regression metering error curve by interpolation of third power of sample stripe, correcting dynamicly metering error causedby slide flow of rotary flowmeter, which can obviously promote the sensitivity of pipeline leakage detection and the locating accuracy.更多还原