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常用脉冲采集式流量计检测过程中,由于分辨力的存在,引入了较大的读值误差。计算结果的示值误差不仅与脉冲当量有关,还受检测时间的影响,检测结果的重复性受分辨力的影响也较大。为了得到相对合理的检测结果,往往需要较长的检测时间。究其原因,主要是采集到的脉冲数并不能反映其在检测时间内的真实流量,对于周期信号来说,即检测时间与被
Common pulse acquisition flowmeter testing process, due to the existence of resolution, the introduction of a larger reading error. The indication error of the calculation result is not only related to the pulse equivalent, but also affected by the detection time, and the repeatability of the detection result is also greatly affected by the resolution. In order to get a relatively reasonable test results, often require a longer detection time. The reason, mainly the number of pulses collected and does not reflect the true flow of time in the test, for the periodic signal, that is, the detection time and be