RHEOMETRY INSTRUMENT UTILIZING SURFACE ACOUSTIC WAVES

摘要

A capillary break-up extensional rheometry (Ca BER) instrument including: opposing plates between which a capillary fluid bridge can be formed; and a surface acoustic wave (SAW) actuator having a working surface located on one of the plates, wherein when the test fluid is applied to the working surface of the SAW actuator, and the SAW actuator is energised, a said liquid bridge of the test fluid is produced between the plates.