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体积管是一种以轻柴油为检定介质校验流量计量仪表准确性的流量标准装置。该装置结构简单、准确度高,广泛应用于国内各大计量站。目前,体积管标准体积值的标定方法应用最广的是容积法,该方法由于设备条件限制,标定流量远小于校验流量仪表时的实际运行流量,由于体积管漏失量的存
Volume tube is a kind of light diesel oil as the test medium to check the accuracy of flow measurement instrumentation flow standard device. The device has the advantages of simple structure and high accuracy, and is widely applied to various metering stations in China. At present, the volumetric method is the most widely used to calibrate the standard volume value of volumetric tube. Because of the limitation of equipment conditions, the calibration flowrate is far less than the actual flowrate when calibrating the flowmeter,