Ultrasound burning holes
Ultrasound burning holes
(OP)
I have recently run into a problem where I have 2.6 MHz ultrasound passing from a transducer into fluid, through a plastic barrier and back into fluid. For some reason I keep burning holes in the plastic barrier. The plastics that I have tried are PET, Teflon, and PE. Any suggestions ?





RE: Ultrasound burning holes
RE: Ultrasound burning holes
thank you for your response. A hardened material is better however, I need a material with an acoustical impedance equal to that of water. I am not sure if cavitation is the problem or the ultrasound is being absorbed by the material. i probably should have stated that the ultrasounic signal is focused about 1 mm above the surface of the cup. Thank you.
RE: Ultrasound burning holes
a properly designed mesh does not necssarily require that the material of the mesh match that of water.
are you exciting standing waves in the fluid?
RE: Ultrasound burning holes
RE: Ultrasound burning holes
RE: Ultrasound burning holes
RE: Ultrasound burning holes
If so, have you tried some teflon membrane materials such as Gore-Tex that prevent some fluid flow, but may allow for better ultrasound energy to pass?