An apparatus for sound, vibration and friction measurements of soft materials in aqueous environments

摘要: Abstract The clean rinse feel of personal wash products is one the major technical drivers consumer preference and usually measured by in-vivo studies in goods industry. We report here a custom-made apparatus based on friction vibration measurements that can be correlated to perceptions feel. consists rotary stage powered motor which controlled programmable controller, long swiveling arm, an artificial finger, underwater sample stage. finger adjust applied normal force substrate. sliding speed adjusted monitored through computer. Data acquisition software triggered combination hardware. Four sensors including two normally mounted load cells, hydrophone accelerometer attached surface are used detect forces, sound, while slides over substrate washes off from A coefficient derived data cells profiles constructed as function time. Rinse shown different with application cleansers slimy or squeaky-clean for products.