Latitude volume photoelectric detection system of compartment weft accumulator

The utility model relates to a latitude volume photoelectric detection system of compartment weft accumulator, it includes weft storage drum, reflection lens, winding yarn dish, magnet steel, mounting bracket, hall element, two photodetector unit and collector lens, the last coiling of weft storage drum has a plurality of rings of woofs, the reflection lens inlays the surface of locating weft storage drum, and a plurality of rings of woofs support and lean on on the reflection lens, the winding yarn dish is installed in one side of weft storage drum, installation on it the magnet steel, the mounting bracket is located the top of weft storage drum and winding yarn dish, hall element and two photodetector unit install on the mounting bracket respectively, hall element ability and magnet steel set up relatively, two photodetector unit arrange along weft storage drum's axial, each photodetector unit below is equipped with collector lens, two collector lens's focus lies in the reflection lens to form a A sensing p