矩形缺口薄壁堰超声波明渠流量计主要参数影响量化分析

Quantitative Analysis of Main Parameters of Ultrasonic Open Channel Flowmeter for Rectangle Sharp-Crested Weir

针对现行检定规程对矩形缺口薄壁堰超声波明渠流量计主要参数检定不够细化的问题,详细研究影响矩形缺口薄壁堰主要参数的因素,并分析当流量变化为5%时这些参数的最大允许变化量,从而细化检定规程,有利于快速发现与判别矩形缺口薄壁堰超声波明渠流量计不合格方面,提高检测矩形缺口薄壁堰超声波明渠流量计的检定效率。

Aiming at the problems that the current verification regulations are not detailed enough to detect the relevant parameters of the open channel ultrasonic flowmeter for rectangle sharp-crested weir, this paper studies in detail the influencing factors of the main parameters of rectangle sharp-crested weir, and quantitatively analyses the maximum allowable variation of these parameters when the flow rate changes to 5%, so as to refine the content of the verification regulations and find the unqualified aspect of open channel ultrasonic flowmeter for Rectangle sharp-crested weir, so it improves the verification efficiency of open channel ultrasonic flowmeter for Rectangle sharp-crested weir.