Capacitanc infusion sensor

The utility model discloses a capacitanc infusion sensor, including set up the capacitor plate on transfer line upper portion to I with set up at the capacitor plate of transfer line lower part to II, the capacitor plate includes the capacitor plate of two relative settings, every to I and/or capacitor plate to II the capacitor plate is convex the subsides on the lateral wall of transfer line, the tip contactless of the capacitor plate of two relative settings. The utility model discloses capacitanc infusion sensor installs on the transfer line, and the measurement process is not influenced by the transfer line gradient, its susceptibility is high, can do accurate the detection to infusion process and infusion surplus simultaneously, in addition, utilize electric capacity response principle, the low power dissipation, last, no radiant energy does not produce negative effects to the liquid medicine. 本实用新型公开了种电容式输液传感器，包括设置在输液管上部的电容极板对I和设置在输液管下部的电容极板对II，所述电容极板对I和/或电容极板对II包括两块相对设置的电容极板，每块所述电容极板呈圆弧形贴在输液管的外侧壁上，所述两块