Detection device for detecting bubbles in liquid pipeline

The utility model provides a detection device for detecting bubbles in a liquid pipeline, which comprises a sample introduction mechanism, a liquid delivery pipeline for introducing a liquid sample and a sample discharge mechanism, the bubble detection sensor comprises a diode arranged on one side of the infusion pipeline and a triode arranged on the other side of the infusion pipeline, and a detection mechanism for detecting an electric signal of the bubble detection sensor so as to judge whether bubbles exist in the infusion pipeline is arranged outside the bubble detection sensor. The detection circuit is simple in structure and low in cost. 本实用新型提供了一种用于检测液体管路气泡的检测装置，包括进样机构、通入液体样品的输液管道和出样机构，所述的输液管道内嵌于气泡检测传感器内，所述的气泡检测传感器包括设于输液管道一侧的二极管和设于输液管道另一侧的三极管，所述的气泡检测传感器外设有检测气泡检测传感器的电信号、以判断输液管道内是否有气泡的检测机构。本实用新型的检测电路结构简单，成本低。