Time Reversal Mirror Single Channel

In a time-reversal system a wave is sent out into a medium by one or more elements in an array and then the echo signals of each element recorded. A section of the echo signal recorded by each element is then selected and played backwards through the same element. The physics of wave propagation results in the signal refocusing back onto the target that scattered that signal. The applications that this could be used for include tracking kidney stones in the body and finding buried mines in the ocean.

This device can send and receive arbitrary waveforms with controlled timing to a single ultrasonic piezoelectric transducer.

[Engineering Technical Documentation]