I like the idea of using the comb filter to cause destructive interference with the background reflection. It looks like there is still a lot I have to research. Is there a way for my receiver to automatically detect the start and end of the echo in software? If so, what techniques are typically...
I'm trying to classify materials based on the reflected acoustic wave they produce. One transducer sends out an ultrasonic pulse to the material of interest and another transducer picks up the reflected waveform. Some of the wave is transmitted thru the material and reflected off of the...
I'm trying to build a ball and beam balance control system. I was thinking of using a metallic ball and two wires to make a linear potentiometer to give the ball's position. I'm not sure what to use as the resistive wire. Most wire I find doesn't seem to provide a sizable amount of resistance. I...