Liquid surface tension coefficient measuring device based on surface wave

The invention discloses a liquid surface tension coefficient measuring device based on surface waves. The device comprises a lamp box, an imaging box, a vibration table and a signal generator. The top of the lamp box is provided with a light-emitting hole, a built-in light-emitting diode and a plano-convex lens arranged on a light path; the imaging box is a height-adjustable box body, the bottom surface is open, and the top surface is a soft light plate. The vibration table comprises two resonance horns which are arranged on the two opposite sides of the light outlet hole respectively and have the same specification parameters, and a light-transmitting plate erected on the two resonance horns. And a light-transmitting water tank is movably arranged on the light-transmitting plate. The two resonant horns are connected with the signal generator through the power amplifier and vibrate at the same frequency. The light emitting diode is connected with the signal generator through the stroboscopic light controller,