| 摘要 |
A trace liquid analysis detection head capable of eliminating stray light interference. An angle of inclination is set for a bearing tray (3), so that on the premise that to-be-detected trace liquid (6) on a round transparent area of the bearing tray (3) does not fall off, stray light generated by the bearing tray (3) is deflected away from a light receiving area of a receiving optical fiber (5), and all light received by the receiving optical fiber (5) is light that passes through the to-be-detected trace liquid (6) then is reflected by a reflection plate (7), and the stray light reflected by the bearing tray (3) is prevented from entering an optical analysis system through the receiving optical fiber, and interference of the stray light to optical analysis on a trace liquid medium is eliminated, thereby greatly improving the analysis accuracy of a related optical analysis system to the trace liquid medium. |
