20190329a Using a NDT dual element transducer Setup For acquisitions 1, 2 and 3 For acquisitions 4 and 5 Acquisitions Putting the TX on RX element, board TX and RX connected on same element, in the air Putting the TX on TX element, board TX and RX connected on same element, in the air Putting the TX on TX element, board TX and RX connected on same element, on a block Using separate paths In the air On the calibration block