Metal particle flow numerical detection method and device

The invention discloses a metal particle flow numeralization detection method and device.The detection method comprises the steps that a coil is wound outside a metal particle flowing channel, and the calibration relation between inductance increment and metal particle flow is obtained according to coil inductance change caused by metal particle amount change of the coil in unit time; and detecting the flow of the metal particles by inductance. The detection method provided by the invention has the advantages of reasonable setting, simple operation steps, automatic control, accurate flow calibration and the like, and the detection device also has the above advantages. 本发明公开了一种金属颗粒流量数值化检测方法及装置，检测方法在金属颗粒流动通路的外部绕设线圈，依据单位时间内通过线圈的金属颗粒量变化导致的线圈电感变化得到电感增量与金属颗粒流量标定关系，以电感检测所述金属颗粒流量。本发明的检测方法具有设置合理、操作步骤简单、能够自动控制以及实现流量精准标定等优点，检测装置同样具备上述优点。