Hi all,
I’m currently doing experiments in tomography and having problems with receiving signals on the ultrasonic transceiver. The experiment is designed to acquire attenuated signal from 330 kHz ultrasonic transceivers and surface voltage measurements form electrical resistance tomography (ERT) with current excitation frequency of 30 kHz in a conductive liquid. In achieving good frame rate, both type of the sensor require to activate at the same time. I obtained the experiments results that showed the ultrasonic amplitudes are distorted. The distortions are worst when I increase the ERT excitation frequency. Can anyone suggest how to remove the distortion signals? I attached captured receiver signal files. The file “ultrasonic receiver signal(b)” contains image of the distortion signal.
Thank you
