Detector means for pulverulent, granular or flaky material

Abstract

Abstract A detector means for loose, flowable bulk material, such as pulverulent, granular, or flaky material, and particularly snow, comprises a surface on which such material is accumulating, a light projector emitting a beam of light and projecting the beam onto the bulk material accumulating on said surface, said bulk material reflecting the light impinging thereon as highly diffused light, and a photoelectric cell is arranged to receive said reflected diffused light, whereby a signal will be emitted by said cell when a certain amount of material has accumulated on the surface. The surface on which the material accumulates is made to optically contrast from the accumulating material, so as to provide for a marked difference in the amount of diffused light projected by the surface without accumulated material thereon, as compared with the amount of diffused light reflected by the accumulated material on the surface.

Inventors

• 👤 Oskar Edwin Sturzinger

Bibliographic Details