So basically if I make something which looks like an optical concave lens, but I make it out of a metal, I will solve my problem? Since sound travels faster in solids than in the fluid medium, it will focus the sound waves?(Assuming Fermat's principle holds for sound waves for relatively short...
Is there any way to focus a sound wave BEHIND an acoustic lens i.e. the source and receiver are on different sides of the lens? Will it result in a significant loss of sound energy?
Hey everyone thanks for your quick response!
I basically wanted to converge the sound waves onto a diaphragm, while keeping them in phase so as to maximize efficiency of sound energy transfer to the diaphragm(constructive interference). Will the reflection of the mirrors or reflectors cause any...
Can we focus parallel sound waves using convex and concave lenses since they essentially follow the same laws of refraction as light?
If not, is there any way to focus parallel beams of sound to converge at a point?
Thanks a lot! I just did not notice anywhere that pressure node and antinode referenced pressure variations and not actual pressure values. That's why my simulations were giving me carnot-cycle defying values lol. Huge thanks!
I really appreciate the response but what I still don't understand is this- that a rarefaction in a longitudinal wave is a region of high displacement(displacement antinode and pressure node). The Rayleigh's criterion mentions greatest rarefaction, which is obviously a displacement antinode. The...
Why is it that the maximum sound coming from a Rijke tube happens only when heated wire gauze is placed at 1/4th the length of the tube from the bottom. According to Rayleighs criterion(copy pasted)
"If heat be periodically communicated to, and abstracted from, a mass of air vibrating in a...