jsc2023e053548

Granular Sound: inside surface of a sample cell wall, covered with foam for acoustic decoupling, with a shear-piezo mounted at its center. The shear-piezo is covered with glued-on glass beads to facilitate transmission of tangential forces. Two such shear-piezos are installed opposite of eachother – one for emission, one for reception of shear waves. Image courtesy of DLR-MP.

jsc2023e053548 (3/3/2023) --- Granular Sound: inside surface of a sample cell wall, covered with foam for acoustic decoupling, with a shear-piezo mounted at its center. The shear-piezo is covered with glued-on glass beads to facilitate transmission of tangential forces. Two such shear-piezos are installed opposite of eachother – one for emission, one for reception of shear waves. Image courtesy of DLR-MP.