Fig. 4From: Table model and portable optical sensors for the monitoring of time-dependent liquid spreading over rough surfacesThe dynamic signal (S) from different liquids recorded by the PS. a Kerosene (K), (b) authentic diesel oil (D) and the binary mixtures for the smooth surface. c authentic diesel oil and binary mixtures (D + K) for the rough glass with Ra = 0.48 μmBack to article page